Siemens SENTRON 5SD74 surge arresters, type 3 (24/120/230 V)

SENTRON 5SD74 type 3 surge arresters for protection of terminal devices in TN-S and TT systems, 1 MW with remote signaling.

Key features

Type 3 device protection close to the load
Rated voltages 24 V, 120 V and 230 V AC
Protection paths L-N, L-PE, N-PE and DC (L+)-(L-), (L+/L-)-PE
Remote signaling, 1 MW width

Specifications

Brand	Siemens SENTRON
Series	5SD74
SPD type	Type 3
System	TN-S and TT
Remote signaling	Yes
Standards	IEC/EN 61643-11
Source	Siemens Catalog LV 10 · 2026, p. 522

5SD7432-5		Un: 24 V AC \| Uc: 34 V AC \| Circuit: 1 + 0 \| Mounting width: 1 MW
5SD7432-6		Un: 120 V AC \| Uc: 150 V AC \| Circuit: 1 + 0 \| Mounting width: 1 MW
5SD7432-7		Un: 230 V AC \| Uc: 264 V AC \| Circuit: 1 + 0 \| Mounting width: 1 MW

Surge Protection DevicesSiemens

3 product codes available in this family

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Siemens SENTRON 5SD74 surge arresters, type 3 (24/120/230 V)

Brand Siemens·Surge Protection Devices

Available part numbers (3)

5SD7432-5, 5SD7432-6, 5SD7432-7

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Product codes & specifications

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RFQ List (0)

	Product code	Spec
	5SD7432-5	Un: 24 V AC \| Uc: 34 V AC \| Circuit: 1 + 0 \| Mounting width: 1 MW
	5SD7432-6	Un: 120 V AC \| Uc: 150 V AC \| Circuit: 1 + 0 \| Mounting width: 1 MW
	5SD7432-7	Un: 230 V AC \| Uc: 264 V AC \| Circuit: 1 + 0 \| Mounting width: 1 MW

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

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Siemens SENTRON 5SD74 surge arresters, type 3 (24/120/230 V)