• Siemens SENTRON 5SD74 surge arresters, type 1 (UL 1449)
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Siemens SENTRON 5SD74 surge arresters, type 1 (UL 1449)

Siemens SENTRON 5SD74 surge arresters, type 1 (UL 1449)

SENTRON 5SD74 type 1 surge protective devices to ANSI UL 1449 and CSA C22.2 No. 269.1 for wye and delta systems up to 600 V AC (without CE marking).

Key features

  • UL 1449 / CSA approved, without CE marking
  • For wye (star) systems 277/480 V and 347/600 V and delta 480 V
  • Rated discharge current In 20 kA, Imax 50 kA (8/20 us)
  • Short-circuit strength 200 kA
  • Remote signaling contact and visual status indication

Specifications

Brand Siemens SENTRON
Series 5SD74
SPD type Type 1 (UL)
Standards ANSI UL 1449; CSA C22.2 No. 269.1
Remote signaling Yes
Degree of protection IP20
Temperature range -40 ... +85 °C
Source Siemens Catalog LV 10 · 2026, p. 523
5SD7413-1KU02 Network: Wye (star) | Protection paths: L-G and L-L | Un L-N: - | Un L-G: 277 V AC | Un L-L: 480 V AC | Circuit: 3 + 0
5SD7414-1KU02 Network: Wye (star) | Protection paths: L-N, L-G, L-L and N-G | Un L-N: 277 V AC | Un L-G: 277 V AC | Un L-L: 480 V AC | Circuit: 3 + 1
5SD7413-1KU03 Network: Wye (star) | Protection paths: L-G and L-L | Un L-N: - | Un L-G: 347 V AC | Un L-L: 600 V AC | Circuit: 3 + 0
5SD7414-1KU03 Network: Wye (star) | Protection paths: L-N, L-G, L-L and N-G | Un L-N: 347 V AC | Un L-G: 347 V AC | Un L-L: 600 V AC | Circuit: 3 + 1
5SD7413-1KU04 Network: Delta | Protection paths: L-G and L-L | Un L-N: - | Un L-G: 480 V AC | Un L-L: 480 V AC | Circuit: 3 + 0
Surge Protection DevicesSiemens
5 product codes available in this family
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Siemens SENTRON 5SD74 surge arresters, type 1 (UL 1449)

Brand Siemens·Surge Protection Devices

Available part numbers (5)

5SD7413-1KU02, 5SD7414-1KU02, 5SD7413-1KU03, 5SD7414-1KU03, 5SD7413-1KU04

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Product codes & specifications
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Product codeSpec
5SD7413-1KU02Network: Wye (star) | Protection paths: L-G and L-L | Un L-N: - | Un L-G: 277 V AC | Un L-L: 480 V AC | Circuit: 3 + 0
5SD7414-1KU02Network: Wye (star) | Protection paths: L-N, L-G, L-L and N-G | Un L-N: 277 V AC | Un L-G: 277 V AC | Un L-L: 480 V AC | Circuit: 3 + 1
5SD7413-1KU03Network: Wye (star) | Protection paths: L-G and L-L | Un L-N: - | Un L-G: 347 V AC | Un L-L: 600 V AC | Circuit: 3 + 0
5SD7414-1KU03Network: Wye (star) | Protection paths: L-N, L-G, L-L and N-G | Un L-N: 347 V AC | Un L-G: 347 V AC | Un L-L: 600 V AC | Circuit: 3 + 1
5SD7413-1KU04Network: Delta | Protection paths: L-G and L-L | Un L-N: - | Un L-G: 480 V AC | Un L-L: 480 V AC | Circuit: 3 + 0

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