• Siemens 4NC Bushing-Type Current Transformers (50-3000 A)
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Siemens 4NC Bushing-Type Current Transformers (50-3000 A)

Siemens 4NC Bushing-Type Current Transformers (50-3000 A)

Siemens 4NC 1-phase bushing-type current transformers for measurement purposes with 5 A or 1 A secondary, in accuracy classes 0.2s, 0.5 and 1.0.

Key features

  • Primary currents from 50 A to 3000 A in sizes 1 to 5 (inner diameter 19 to 41 mm)
  • Secondary rated current 5 A or 1 A
  • Accuracy classes 0.2s, 0.5 and 1.0; overcurrent limiting factor FS5
  • Maximum voltage for equipment Um = 720 V (rms)
  • Optional DIN-rail mounting adapters per transformer size

Specifications

Series 4NC
Version 1-phase bushing type
Purpose Measurement
Overcurrent limiting factor FS5
Max. voltage for equipment Um = 720 V
Source Siemens Catalog LV 10 · 2026, p. 846-847
4NC5121-2FA21 Size: 1 | Inner diameter: 19 mm | Primary current: 150 A | Secondary current: 5 A | Rated power: 1 VA | Accuracy class: 0.2s
4NC5122-2FC21 Size: 1 | Inner diameter: 19 mm | Primary current: 200 A | Secondary current: 5 A | Rated power: 2.5 VA | Accuracy class: 0.2s
4NC5123-2FC21 Size: 1 | Inner diameter: 19 mm | Primary current: 250 A | Secondary current: 5 A | Rated power: 2.5 VA | Accuracy class: 0.2s
4NC5124-2FE21 Size: 1 | Inner diameter: 19 mm | Primary current: 300 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.2s
4NC5125-2FE21 Size: 1 | Inner diameter: 19 mm | Primary current: 400 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.2s
4NC5126-2FE21 Size: 1 | Inner diameter: 19 mm | Primary current: 500 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.2s
4NC5227-2FE21 Size: 5 | Inner diameter: 26 mm | Primary current: 600 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.2s
4NC5228-2FE21 Size: 5 | Inner diameter: 26 mm | Primary current: 700 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.2s
4NC5231-2FE21 Size: 5 | Inner diameter: 26 mm | Primary current: 800 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.2s
4NC5232-2FE21 Size: 5 | Inner diameter: 26 mm | Primary current: 1000 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.2s
4NC5117-2DA21 Size: 1 | Inner diameter: 19 mm | Primary current: 100 A | Secondary current: 5 A | Rated power: 1 VA | Accuracy class: 0.5
4NC5117-0DA21 Size: 1 | Inner diameter: 19 mm | Primary current: 100 A | Secondary current: 1 A | Rated power: 1 VA | Accuracy class: 0.5
4NC5121-2DC21 Size: 1 | Inner diameter: 19 mm | Primary current: 150 A | Secondary current: 5 A | Rated power: 2.5 VA | Accuracy class: 0.5
4NC5121-0DC21 Size: 1 | Inner diameter: 19 mm | Primary current: 150 A | Secondary current: 1 A | Rated power: 2.5 VA | Accuracy class: 0.5
4NC5122-2DE21 Size: 1 | Inner diameter: 19 mm | Primary current: 200 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5122-0DE21 Size: 1 | Inner diameter: 19 mm | Primary current: 200 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5123-2DE21 Size: 1 | Inner diameter: 19 mm | Primary current: 250 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5123-0DE21 Size: 1 | Inner diameter: 19 mm | Primary current: 250 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5222-2DE21 Size: 2 | Inner diameter: 28 mm | Primary current: 200 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5222-0DE21 Size: 2 | Inner diameter: 28 mm | Primary current: 200 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5223-2DE21 Size: 2 | Inner diameter: 28 mm | Primary current: 250 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5223-0DE21 Size: 2 | Inner diameter: 28 mm | Primary current: 250 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5224-2DE21 Size: 2 | Inner diameter: 28 mm | Primary current: 300 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5224-0DE21 Size: 2 | Inner diameter: 28 mm | Primary current: 300 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5225-2DE21 Size: 2 | Inner diameter: 28 mm | Primary current: 400 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5225-0DE21 Size: 2 | Inner diameter: 28 mm | Primary current: 400 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5325-2DE21 Size: 3 | Inner diameter: 36 mm | Primary current: 400 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5325-0DE21 Size: 3 | Inner diameter: 36 mm | Primary current: 400 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5326-2DE21 Size: 3 | Inner diameter: 36 mm | Primary current: 500 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5326-0DE21 Size: 3 | Inner diameter: 36 mm | Primary current: 500 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5327-2DE21 Size: 3 | Inner diameter: 36 mm | Primary current: 600 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5327-0DE21 Size: 3 | Inner diameter: 36 mm | Primary current: 600 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5330-2DE21 Size: 3 | Inner diameter: 36 mm | Primary current: 750 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5330-0DE21 Size: 3 | Inner diameter: 36 mm | Primary current: 750 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5331-2DE21 Size: 3 | Inner diameter: 36 mm | Primary current: 800 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5431-2DH21 Size: 4 | Inner diameter: 41 mm | Primary current: 800 A | Secondary current: 5 A | Rated power: 10 VA | Accuracy class: 0.5
4NC5431-0DH21 Size: 4 | Inner diameter: 41 mm | Primary current: 800 A | Secondary current: 1 A | Rated power: 10 VA | Accuracy class: 0.5
4NC5432-2DH21 Size: 4 | Inner diameter: 41 mm | Primary current: 1000 A | Secondary current: 5 A | Rated power: 10 VA | Accuracy class: 0.5
4NC5432-0DH21 Size: 4 | Inner diameter: 41 mm | Primary current: 1000 A | Secondary current: 1 A | Rated power: 10 VA | Accuracy class: 0.5
4NC5433-2DH21 Size: 4 | Inner diameter: 41 mm | Primary current: 1200 A | Secondary current: 5 A | Rated power: 10 VA | Accuracy class: 0.5
4NC5433-0DH21 Size: 4 | Inner diameter: 41 mm | Primary current: 1200 A | Secondary current: 1 A | Rated power: 10 VA | Accuracy class: 0.5
4NC5435-2DH21 Size: 4 | Inner diameter: 41 mm | Primary current: 1500 A | Secondary current: 5 A | Rated power: 10 VA | Accuracy class: 0.5
4NC5435-0DH21 Size: 4 | Inner diameter: 41 mm | Primary current: 1500 A | Secondary current: 1 A | Rated power: 10 VA | Accuracy class: 0.5
4NC5436-2DK21 Size: 4 | Inner diameter: 41 mm | Primary current: 1600 A | Secondary current: 5 A | Rated power: 15 VA | Accuracy class: 0.5
4NC5438-2DL21 Size: 4 | Inner diameter: 41 mm | Primary current: 2000 A | Secondary current: 5 A | Rated power: 20 VA | Accuracy class: 0.5
4NC5440-2DM21 Size: 4 | Inner diameter: 41 mm | Primary current: 2500 A | Secondary current: 5 A | Rated power: 25 VA | Accuracy class: 0.5
4NC5441-2DN21 Size: 4 | Inner diameter: 41 mm | Primary current: 3000 A | Secondary current: 5 A | Rated power: 30 VA | Accuracy class: 0.5
4NC5112-2CB21 Size: 1 | Inner diameter: 19 mm | Primary current: 50 A | Secondary current: 5 A | Rated power: 1.2 VA | Accuracy class: 1.0
4NC5112-0CB21 Size: 1 | Inner diameter: 19 mm | Primary current: 50 A | Secondary current: 1 A | Rated power: 1.2 VA | Accuracy class: 1.0
4NC5113-2CB21 Size: 1 | Inner diameter: 19 mm | Primary current: 60 A | Secondary current: 5 A | Rated power: 1.2 VA | Accuracy class: 1.0
4NC5113-0CB21 Size: 1 | Inner diameter: 19 mm | Primary current: 60 A | Secondary current: 1 A | Rated power: 1.2 VA | Accuracy class: 1.0
4NC5115-2CC21 Size: 1 | Inner diameter: 19 mm | Primary current: 75 A | Secondary current: 5 A | Rated power: 2.5 VA | Accuracy class: 1.0
4NC5115-0CC21 Size: 1 | Inner diameter: 19 mm | Primary current: 75 A | Secondary current: 1 A | Rated power: 2.5 VA | Accuracy class: 1.0
4NC5117-2CC21 Size: 1 | Inner diameter: 19 mm | Primary current: 100 A | Secondary current: 5 A | Rated power: 2.5 VA | Accuracy class: 1.0
4NC5117-0CC21 Size: 1 | Inner diameter: 19 mm | Primary current: 100 A | Secondary current: 1 A | Rated power: 2.5 VA | Accuracy class: 1.0
4NC5121-2CC21 Size: 1 | Inner diameter: 19 mm | Primary current: 150 A | Secondary current: 5 A | Rated power: 2.5 VA | Accuracy class: 1.0
4NC5121-0CC21 Size: 1 | Inner diameter: 19 mm | Primary current: 150 A | Secondary current: 1 A | Rated power: 2.5 VA | Accuracy class: 1.0
4NC5122-2CE21 Size: 1 | Inner diameter: 19 mm | Primary current: 200 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5122-0CE21 Size: 1 | Inner diameter: 19 mm | Primary current: 200 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5123-2CE21 Size: 1 | Inner diameter: 19 mm | Primary current: 250 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5123-0CE21 Size: 1 | Inner diameter: 19 mm | Primary current: 250 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5222-2CE21 Size: 2 | Inner diameter: 28 mm | Primary current: 200 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5222-0CE21 Size: 2 | Inner diameter: 28 mm | Primary current: 200 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5223-2CE21 Size: 2 | Inner diameter: 28 mm | Primary current: 250 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5223-0CE21 Size: 2 | Inner diameter: 28 mm | Primary current: 250 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5224-2CE21 Size: 2 | Inner diameter: 28 mm | Primary current: 300 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5224-0CE21 Size: 2 | Inner diameter: 28 mm | Primary current: 300 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5225-2CE21 Size: 2 | Inner diameter: 28 mm | Primary current: 400 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5225-0CE21 Size: 2 | Inner diameter: 28 mm | Primary current: 400 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5325-2CE21 Size: 3 | Inner diameter: 36 mm | Primary current: 400 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5325-0CE21 Size: 3 | Inner diameter: 36 mm | Primary current: 400 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5326-2CE21 Size: 3 | Inner diameter: 36 mm | Primary current: 500 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5326-0CE21 Size: 3 | Inner diameter: 36 mm | Primary current: 500 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5327-2CE21 Size: 3 | Inner diameter: 36 mm | Primary current: 600 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5327-0CE21 Size: 3 | Inner diameter: 36 mm | Primary current: 600 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5330-2CE21 Size: 3 | Inner diameter: 36 mm | Primary current: 750 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5330-0CE21 Size: 3 | Inner diameter: 36 mm | Primary current: 750 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5431-2CH21 Size: 4 | Inner diameter: 41 mm | Primary current: 800 A | Secondary current: 5 A | Rated power: 10 VA | Accuracy class: 1.0
4NC5431-0CH21 Size: 4 | Inner diameter: 41 mm | Primary current: 800 A | Secondary current: 1 A | Rated power: 10 VA | Accuracy class: 1.0
4NC5432-2CH21 Size: 4 | Inner diameter: 41 mm | Primary current: 1000 A | Secondary current: 5 A | Rated power: 10 VA | Accuracy class: 1.0
4NC5432-0CH21 Size: 4 | Inner diameter: 41 mm | Primary current: 1000 A | Secondary current: 1 A | Rated power: 10 VA | Accuracy class: 1.0
4NC5434-2CH21 Size: 4 | Inner diameter: 41 mm | Primary current: 1250 A | Secondary current: 5 A | Rated power: 10 VA | Accuracy class: 1.0
4NC5434-0CH21 Size: 4 | Inner diameter: 41 mm | Primary current: 1250 A | Secondary current: 1 A | Rated power: 10 VA | Accuracy class: 1.0
4NC5435-2CH21 Size: 4 | Inner diameter: 41 mm | Primary current: 1500 A | Secondary current: 5 A | Rated power: 10 VA | Accuracy class: 1.0
4NC5435-0CH21 Size: 4 | Inner diameter: 41 mm | Primary current: 1500 A | Secondary current: 1 A | Rated power: 10 VA | Accuracy class: 1.0
4NC5438-2CJ21 Size: 4 | Inner diameter: 41 mm | Primary current: 2000 A | Secondary current: 5 A | Rated power: 12.5 VA | Accuracy class: 1.0
4NC5438-0CJ21 Size: 4 | Inner diameter: 41 mm | Primary current: 2000 A | Secondary current: 1 A | Rated power: 12.5 VA | Accuracy class: 1.0
4NC5440-2CJ21 Size: 4 | Inner diameter: 41 mm | Primary current: 2500 A | Secondary current: 5 A | Rated power: 12.5 VA | Accuracy class: 1.0
4NC5440-0CJ21 Size: 4 | Inner diameter: 41 mm | Primary current: 2500 A | Secondary current: 1 A | Rated power: 12.5 VA | Accuracy class: 1.0
4NC5441-2CN21 Size: 4 | Inner diameter: 41 mm | Primary current: 3000 A | Secondary current: 5 A | Rated power: 30 VA | Accuracy class: 1.0
4NC5923-5LT21 Size: 1 and 5 | Inner diameter: - | Primary current: - | Secondary current: 5 A / 1 A | Rated power: - | Accuracy class: Accessory: DIN-rail mounting
4NC5925-5LT21 Size: 2 | Inner diameter: - | Primary current: - | Secondary current: 5 A / 1 A | Rated power: - | Accuracy class: Accessory: DIN-rail mounting
4NC5930-5LT21 Size: 3 | Inner diameter: - | Primary current: - | Secondary current: 5 A / 1 A | Rated power: - | Accuracy class: Accessory: DIN-rail mounting
4NC5940-5LT21 Size: 4 | Inner diameter: - | Primary current: - | Secondary current: 5 A / 1 A | Rated power: - | Accuracy class: Accessory: DIN-rail mounting
AccessoriesSiemens
94 product codes available in this family
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Siemens 4NC Bushing-Type Current Transformers (50-3000 A)

Brand Siemens·Accessories

Available part numbers (94)

4NC5121-2FA21, 4NC5122-2FC21, 4NC5123-2FC21, 4NC5124-2FE21, 4NC5125-2FE21, 4NC5126-2FE21, 4NC5227-2FE21, 4NC5228-2FE21, 4NC5231-2FE21, 4NC5232-2FE21 + 84 more — see full table ↓

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Product codeSpec
4NC5121-2FA21Size: 1 | Inner diameter: 19 mm | Primary current: 150 A | Secondary current: 5 A | Rated power: 1 VA | Accuracy class: 0.2s
4NC5122-2FC21Size: 1 | Inner diameter: 19 mm | Primary current: 200 A | Secondary current: 5 A | Rated power: 2.5 VA | Accuracy class: 0.2s
4NC5123-2FC21Size: 1 | Inner diameter: 19 mm | Primary current: 250 A | Secondary current: 5 A | Rated power: 2.5 VA | Accuracy class: 0.2s
4NC5124-2FE21Size: 1 | Inner diameter: 19 mm | Primary current: 300 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.2s
4NC5125-2FE21Size: 1 | Inner diameter: 19 mm | Primary current: 400 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.2s
4NC5126-2FE21Size: 1 | Inner diameter: 19 mm | Primary current: 500 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.2s
4NC5227-2FE21Size: 5 | Inner diameter: 26 mm | Primary current: 600 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.2s
4NC5228-2FE21Size: 5 | Inner diameter: 26 mm | Primary current: 700 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.2s
4NC5231-2FE21Size: 5 | Inner diameter: 26 mm | Primary current: 800 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.2s
4NC5232-2FE21Size: 5 | Inner diameter: 26 mm | Primary current: 1000 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.2s
4NC5117-2DA21Size: 1 | Inner diameter: 19 mm | Primary current: 100 A | Secondary current: 5 A | Rated power: 1 VA | Accuracy class: 0.5
4NC5117-0DA21Size: 1 | Inner diameter: 19 mm | Primary current: 100 A | Secondary current: 1 A | Rated power: 1 VA | Accuracy class: 0.5
4NC5121-2DC21Size: 1 | Inner diameter: 19 mm | Primary current: 150 A | Secondary current: 5 A | Rated power: 2.5 VA | Accuracy class: 0.5
4NC5121-0DC21Size: 1 | Inner diameter: 19 mm | Primary current: 150 A | Secondary current: 1 A | Rated power: 2.5 VA | Accuracy class: 0.5
4NC5122-2DE21Size: 1 | Inner diameter: 19 mm | Primary current: 200 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5122-0DE21Size: 1 | Inner diameter: 19 mm | Primary current: 200 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5123-2DE21Size: 1 | Inner diameter: 19 mm | Primary current: 250 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5123-0DE21Size: 1 | Inner diameter: 19 mm | Primary current: 250 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5222-2DE21Size: 2 | Inner diameter: 28 mm | Primary current: 200 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5222-0DE21Size: 2 | Inner diameter: 28 mm | Primary current: 200 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5223-2DE21Size: 2 | Inner diameter: 28 mm | Primary current: 250 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5223-0DE21Size: 2 | Inner diameter: 28 mm | Primary current: 250 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5224-2DE21Size: 2 | Inner diameter: 28 mm | Primary current: 300 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5224-0DE21Size: 2 | Inner diameter: 28 mm | Primary current: 300 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5225-2DE21Size: 2 | Inner diameter: 28 mm | Primary current: 400 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5225-0DE21Size: 2 | Inner diameter: 28 mm | Primary current: 400 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5325-2DE21Size: 3 | Inner diameter: 36 mm | Primary current: 400 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5325-0DE21Size: 3 | Inner diameter: 36 mm | Primary current: 400 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5326-2DE21Size: 3 | Inner diameter: 36 mm | Primary current: 500 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5326-0DE21Size: 3 | Inner diameter: 36 mm | Primary current: 500 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5327-2DE21Size: 3 | Inner diameter: 36 mm | Primary current: 600 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5327-0DE21Size: 3 | Inner diameter: 36 mm | Primary current: 600 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5330-2DE21Size: 3 | Inner diameter: 36 mm | Primary current: 750 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5330-0DE21Size: 3 | Inner diameter: 36 mm | Primary current: 750 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5331-2DE21Size: 3 | Inner diameter: 36 mm | Primary current: 800 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 0.5
4NC5431-2DH21Size: 4 | Inner diameter: 41 mm | Primary current: 800 A | Secondary current: 5 A | Rated power: 10 VA | Accuracy class: 0.5
4NC5431-0DH21Size: 4 | Inner diameter: 41 mm | Primary current: 800 A | Secondary current: 1 A | Rated power: 10 VA | Accuracy class: 0.5
4NC5432-2DH21Size: 4 | Inner diameter: 41 mm | Primary current: 1000 A | Secondary current: 5 A | Rated power: 10 VA | Accuracy class: 0.5
4NC5432-0DH21Size: 4 | Inner diameter: 41 mm | Primary current: 1000 A | Secondary current: 1 A | Rated power: 10 VA | Accuracy class: 0.5
4NC5433-2DH21Size: 4 | Inner diameter: 41 mm | Primary current: 1200 A | Secondary current: 5 A | Rated power: 10 VA | Accuracy class: 0.5
4NC5433-0DH21Size: 4 | Inner diameter: 41 mm | Primary current: 1200 A | Secondary current: 1 A | Rated power: 10 VA | Accuracy class: 0.5
4NC5435-2DH21Size: 4 | Inner diameter: 41 mm | Primary current: 1500 A | Secondary current: 5 A | Rated power: 10 VA | Accuracy class: 0.5
4NC5435-0DH21Size: 4 | Inner diameter: 41 mm | Primary current: 1500 A | Secondary current: 1 A | Rated power: 10 VA | Accuracy class: 0.5
4NC5436-2DK21Size: 4 | Inner diameter: 41 mm | Primary current: 1600 A | Secondary current: 5 A | Rated power: 15 VA | Accuracy class: 0.5
4NC5438-2DL21Size: 4 | Inner diameter: 41 mm | Primary current: 2000 A | Secondary current: 5 A | Rated power: 20 VA | Accuracy class: 0.5
4NC5440-2DM21Size: 4 | Inner diameter: 41 mm | Primary current: 2500 A | Secondary current: 5 A | Rated power: 25 VA | Accuracy class: 0.5
4NC5441-2DN21Size: 4 | Inner diameter: 41 mm | Primary current: 3000 A | Secondary current: 5 A | Rated power: 30 VA | Accuracy class: 0.5
4NC5112-2CB21Size: 1 | Inner diameter: 19 mm | Primary current: 50 A | Secondary current: 5 A | Rated power: 1.2 VA | Accuracy class: 1.0
4NC5112-0CB21Size: 1 | Inner diameter: 19 mm | Primary current: 50 A | Secondary current: 1 A | Rated power: 1.2 VA | Accuracy class: 1.0
4NC5113-2CB21Size: 1 | Inner diameter: 19 mm | Primary current: 60 A | Secondary current: 5 A | Rated power: 1.2 VA | Accuracy class: 1.0
4NC5113-0CB21Size: 1 | Inner diameter: 19 mm | Primary current: 60 A | Secondary current: 1 A | Rated power: 1.2 VA | Accuracy class: 1.0
4NC5115-2CC21Size: 1 | Inner diameter: 19 mm | Primary current: 75 A | Secondary current: 5 A | Rated power: 2.5 VA | Accuracy class: 1.0
4NC5115-0CC21Size: 1 | Inner diameter: 19 mm | Primary current: 75 A | Secondary current: 1 A | Rated power: 2.5 VA | Accuracy class: 1.0
4NC5117-2CC21Size: 1 | Inner diameter: 19 mm | Primary current: 100 A | Secondary current: 5 A | Rated power: 2.5 VA | Accuracy class: 1.0
4NC5117-0CC21Size: 1 | Inner diameter: 19 mm | Primary current: 100 A | Secondary current: 1 A | Rated power: 2.5 VA | Accuracy class: 1.0
4NC5121-2CC21Size: 1 | Inner diameter: 19 mm | Primary current: 150 A | Secondary current: 5 A | Rated power: 2.5 VA | Accuracy class: 1.0
4NC5121-0CC21Size: 1 | Inner diameter: 19 mm | Primary current: 150 A | Secondary current: 1 A | Rated power: 2.5 VA | Accuracy class: 1.0
4NC5122-2CE21Size: 1 | Inner diameter: 19 mm | Primary current: 200 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5122-0CE21Size: 1 | Inner diameter: 19 mm | Primary current: 200 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5123-2CE21Size: 1 | Inner diameter: 19 mm | Primary current: 250 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5123-0CE21Size: 1 | Inner diameter: 19 mm | Primary current: 250 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5222-2CE21Size: 2 | Inner diameter: 28 mm | Primary current: 200 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5222-0CE21Size: 2 | Inner diameter: 28 mm | Primary current: 200 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5223-2CE21Size: 2 | Inner diameter: 28 mm | Primary current: 250 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5223-0CE21Size: 2 | Inner diameter: 28 mm | Primary current: 250 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5224-2CE21Size: 2 | Inner diameter: 28 mm | Primary current: 300 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5224-0CE21Size: 2 | Inner diameter: 28 mm | Primary current: 300 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5225-2CE21Size: 2 | Inner diameter: 28 mm | Primary current: 400 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5225-0CE21Size: 2 | Inner diameter: 28 mm | Primary current: 400 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5325-2CE21Size: 3 | Inner diameter: 36 mm | Primary current: 400 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5325-0CE21Size: 3 | Inner diameter: 36 mm | Primary current: 400 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5326-2CE21Size: 3 | Inner diameter: 36 mm | Primary current: 500 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5326-0CE21Size: 3 | Inner diameter: 36 mm | Primary current: 500 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5327-2CE21Size: 3 | Inner diameter: 36 mm | Primary current: 600 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5327-0CE21Size: 3 | Inner diameter: 36 mm | Primary current: 600 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5330-2CE21Size: 3 | Inner diameter: 36 mm | Primary current: 750 A | Secondary current: 5 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5330-0CE21Size: 3 | Inner diameter: 36 mm | Primary current: 750 A | Secondary current: 1 A | Rated power: 5 VA | Accuracy class: 1.0
4NC5431-2CH21Size: 4 | Inner diameter: 41 mm | Primary current: 800 A | Secondary current: 5 A | Rated power: 10 VA | Accuracy class: 1.0
4NC5431-0CH21Size: 4 | Inner diameter: 41 mm | Primary current: 800 A | Secondary current: 1 A | Rated power: 10 VA | Accuracy class: 1.0
4NC5432-2CH21Size: 4 | Inner diameter: 41 mm | Primary current: 1000 A | Secondary current: 5 A | Rated power: 10 VA | Accuracy class: 1.0
4NC5432-0CH21Size: 4 | Inner diameter: 41 mm | Primary current: 1000 A | Secondary current: 1 A | Rated power: 10 VA | Accuracy class: 1.0
4NC5434-2CH21Size: 4 | Inner diameter: 41 mm | Primary current: 1250 A | Secondary current: 5 A | Rated power: 10 VA | Accuracy class: 1.0
4NC5434-0CH21Size: 4 | Inner diameter: 41 mm | Primary current: 1250 A | Secondary current: 1 A | Rated power: 10 VA | Accuracy class: 1.0
4NC5435-2CH21Size: 4 | Inner diameter: 41 mm | Primary current: 1500 A | Secondary current: 5 A | Rated power: 10 VA | Accuracy class: 1.0
4NC5435-0CH21Size: 4 | Inner diameter: 41 mm | Primary current: 1500 A | Secondary current: 1 A | Rated power: 10 VA | Accuracy class: 1.0
4NC5438-2CJ21Size: 4 | Inner diameter: 41 mm | Primary current: 2000 A | Secondary current: 5 A | Rated power: 12.5 VA | Accuracy class: 1.0
4NC5438-0CJ21Size: 4 | Inner diameter: 41 mm | Primary current: 2000 A | Secondary current: 1 A | Rated power: 12.5 VA | Accuracy class: 1.0
4NC5440-2CJ21Size: 4 | Inner diameter: 41 mm | Primary current: 2500 A | Secondary current: 5 A | Rated power: 12.5 VA | Accuracy class: 1.0
4NC5440-0CJ21Size: 4 | Inner diameter: 41 mm | Primary current: 2500 A | Secondary current: 1 A | Rated power: 12.5 VA | Accuracy class: 1.0
4NC5441-2CN21Size: 4 | Inner diameter: 41 mm | Primary current: 3000 A | Secondary current: 5 A | Rated power: 30 VA | Accuracy class: 1.0
4NC5923-5LT21Size: 1 and 5 | Inner diameter: - | Primary current: - | Secondary current: 5 A / 1 A | Rated power: - | Accuracy class: Accessory: DIN-rail mounting
4NC5925-5LT21Size: 2 | Inner diameter: - | Primary current: - | Secondary current: 5 A / 1 A | Rated power: - | Accuracy class: Accessory: DIN-rail mounting
4NC5930-5LT21Size: 3 | Inner diameter: - | Primary current: - | Secondary current: 5 A / 1 A | Rated power: - | Accuracy class: Accessory: DIN-rail mounting
4NC5940-5LT21Size: 4 | Inner diameter: - | Primary current: - | Secondary current: 5 A / 1 A | Rated power: - | Accuracy class: Accessory: DIN-rail mounting

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