Products
Surge-Trap STPT12-12K275V-4PGM Type 1+2 Surge Protection Device, 4 Pole TTMersen · 83120139
Type 1+2 · Three phase · TT, TN-S, TN-C-S (PME) · 4 modules
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£427.94 ex VAT£513.53 inc VAT
DEHNguard DG TT 5 275 Compact Type 2 Surge Protection Device, 2 Module Three Phase TT/TNDEHN · 900455
Type 2 · Three phase · TT, TN-S, TN-C-S (PME) · 2 modules
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£139.92 ex VAT£167.90 inc VAT
- Surge-Trap STPT12-12K275V-4PM Type 1+2 Surge Protection Device, 4 Pole TN-S
Mersen · 83120145
Type 1+2 · Three phase · TN-S, TN-C-S (PME) · 4 modules
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£495.31 ex VAT£594.37 inc VAT
- Compact Combined Type 1+2 Surge Protection Device, 4 Module Three Phase TT/TN
DEHN · 941310
Type 1+2 · Three phase · TT, TN-S, TN-C-S (PME) · 4 modules
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£452.08 ex VAT£542.50 inc VAT
- Compact Combined Type 1+2 Surge Protection Device, 4 Module Three Phase TN-S
DEHN · 941400
Type 1+2 · Three phase · TN-S · 4 modules
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£911.95 ex VAT£1,094.34 inc VAT
- Surge-Trap STPT2-40K275V-4PGM Type 2 Surge Protection Device, 4 Pole TT
Mersen · 83020147
Type 2 · Three phase · TT, TN-S, TN-C-S (PME) · 4 modules
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£221.74 ex VAT£266.09 inc VAT
- Type 3 Surge Protection Device, 2 Module Three Phase 25A
DEHN · 953400
Type 3 · Three phase · TT, TN-S, TN-C-S (PME) · 2 modules
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£204.27 ex VAT£245.12 inc VAT
- Surge-Trap STPT2-40K275V-4PM Type 2 Surge Protection Device, 4 Pole TN-S
Mersen · 83020153
Type 2 · Three phase · TN-S, TN-C-S (PME) · 4 modules
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£174.40 ex VAT£209.28 inc VAT
- DEHNguard DG M TT 275 Type 2 Surge Protection Device, 4 Module Three Phase TT
DEHN · 952310
Type 2 · Three phase · TT, TN-S, TN-C-S (PME) · 4 modules
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£380.60 ex VAT£456.72 inc VAT
- Combined Type 1+2 Surge Protection Device, 8 Module Three Phase TT/TN
DEHN · 951310
Type 1+2 · Three phase · TT, TN-S, TN-C-S (PME) · 8 modules
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£1,176.94 ex VAT£1,412.33 inc VAT
- Type 3 Surge Protection Device with Remote Signalling, 2 Module Three Phase 25A
DEHN · 953405
Type 3 · Three phase · TT, TN-S, TN-C-S (PME) · 2 modules
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£205.12 ex VAT£246.14 inc VAT
- Type 2 Surge Protection Device with Remote Signalling, 4 Module Three Phase TT/TN
DEHN · 952315
Type 2 · Three phase · TT, TN-S, TN-C-S (PME) · 4 modules
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£432.94 ex VAT£519.53 inc VAT
- Combined Type 1+2 Surge Protection Device with Remote Signalling, 8 Module Three Phase TT/TN
DEHN · 951315
Type 1+2 · Three phase · TT, TN-S, TN-C-S (PME) · 8 modules
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£1,217.19 ex VAT£1,460.63 inc VAT
- Type 2 Surge Protection Device, 4 Module Three Phase TN
DEHN · 952400
Type 2 · Three phase · TN-S, TN-C-S (PME) · 4 modules
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£203.00 ex VAT£243.60 inc VAT
- Combined Type 1+2 Surge Protection Device, 8 Module Three Phase TPN TN
DEHN · 951400
Type 1+2 · Three phase · TN-S, TN-C-S (PME) · 8 modules
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£892.04 ex VAT£1,070.45 inc VAT
- Modular Type 2+3 Surge Protection Device, 4 Module Three Phase TT/TN with Alarm Contact
Mersen · 83230129
Type 2+3 · Three phase · TT, TN-S, TN-C-S (PME) · 4 modules
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£179.40 ex VAT£215.28 inc VAT
- Type 2 Surge Protection Device with Remote Signalling, 4 Module Three Phase TN
DEHN · 952405
Type 2 · Three phase · TN-S, TN-C-S (PME) · 4 modules
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£238.08 ex VAT£285.70 inc VAT
- Combined Type 1+2 Surge Protection Device with Remote Signalling, 8 Module Three Phase TN
DEHN · 951405
Type 1+2 · Three phase · TN-S, TN-C-S (PME) · 8 modules
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£973.75 ex VAT£1,168.50 inc VAT
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Buying guide
Choose the type for the position: Type 1+2 at the origin where the building has lightning protection or an overhead supply, Type 2 at distribution boards, Type 3 close to sensitive equipment.
Match the device to the earthing system - TN-C-S, TN-S or TT - using the filters, and check whether you need a remote signalling contact.
Questions
- Which type do I need?
- Type 1+2 at the origin where there is a lightning protection system or an overhead supply, Type 2 at distribution boards, and Type 3 close to sensitive equipment after a Type 2 device.
- Does the earthing system matter?
- Yes. Devices are made for TN-C-S, TN-S or TT systems; each product page states which ones it suits.