• Woonyoung WYZS-160H~260H Square Busbar-Through Zero-Phase Current Transformer, 30 mA / 50 mV
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Woonyoung WYZS-160H~260H Square Busbar-Through Zero-Phase Current Transformer, 30 mA / 50 mV

Woonyoung WYZS-160H~260H Square Busbar-Through Zero-Phase Current Transformer, 30 mA / 50 mV

Square busbar-through zero-phase current transformer (30 mA / 50 mV) with 166-260 mm x 30 mm windows for high-sensitivity elr / gfr applications.

Key features

  • Primary conductor passes through the core; detects zero-sequence (earth leakage) current
  • Silicon steel core with good permeability for precise output characteristics
  • Self-extinguishing ABS flame-retardant resin case (ABS and PC)
  • Lightweight construction without internal filler
  • Terminal cover for safety
  • KC and CE marked

Specifications

Operating temperature -10 to +60 C
Insulation resistance Secondary-earth DC 500 V megger, 100 MOhm or more
Impulse withstand Secondary-earth 6 kV (1.2/50 us), +/- 1 time
Rated output Primary 30 mA, secondary 50 mV (with 2 kOhm)
Class Connected by 10 kOhm
Dielectric withstand Secondary-earth AC 1,500 V / 1 min
Compatible relays WYER-31S, WYER-31T leakage alarms; WYGF-D01S, WYGF-D01T, WYGF-D01TP, WYGF-D01HT ground fault relays
Application High-sensitivity ELR / GFR
Construction Square, busbar-through
WYZS-160H Window: 166 x 30 mm | Rated current: 400 A | Busbar (all wiring systems): 6t x 25 mm | Weight: 0.8 kg
WYZS-210H Window: 210 x 30 mm | Rated current: 500 A | Busbar (all wiring systems): 6t x 25 mm | Weight: 1.0 kg
WYZS-260H Window: 260 x 30 mm | Rated current: 600 A | Busbar (all wiring systems): 8t x 30 mm | Weight: 1.4 kg
Zero-Phase Current TransformersWoonyoung
3 product codes available in this family
Sourced direct from KoreaExport-ready supplyCompetitive pricing
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Woonyoung WYZS-160H~260H Square Busbar-Through Zero-Phase Current Transformer, 30 mA / 50 mV

Brand Woonyoung·Zero-Phase Current Transformers

Available part numbers (3)

WYZS-160H, WYZS-210H, WYZS-260H

How to order

Send the Woonyoung part numbers and quantities through our RFQ form or to info@prosourcemro.com. We confirm price, availability and lead time within 1 business day — no account needed.

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Product codes & specifications
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Product codeSpec
WYZS-160HWindow: 166 x 30 mm | Rated current: 400 A | Busbar (all wiring systems): 6t x 25 mm | Weight: 0.8 kg
WYZS-210HWindow: 210 x 30 mm | Rated current: 500 A | Busbar (all wiring systems): 6t x 25 mm | Weight: 1.0 kg
WYZS-260HWindow: 260 x 30 mm | Rated current: 600 A | Busbar (all wiring systems): 8t x 30 mm | Weight: 1.4 kg

Need a different model, or a part not listed here? Send us your parts list →

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