Mersen Surge-Trap SP12-25K-N Type 1+2 Replacement Cartridge, Neutral for 2 Pole TT Devices
- Brand:
- Mersen
- Part number:
- 83120005
- EAN:
- 8435297850342
Neutral-to-earth replacement cartridge for two-pole Mersen Surge-Trap STPT12 arresters on TT systems, rated Iimp 25kA with a 1.5kV protection level.
- Neutral (N-PE) replacement cartridge
- Iimp 25kA, Imax 50kA, Up 1.5kV
- For 2 pole Surge-Trap TT devices
- Mechanically coded, plug-in fit
1 in stock
UK delivery £9.95 ex VAT, free on orders of £100 ex VAT or more; usually 2-3 working days.
Minimum order £50 ex VAT. All prices exclude VAT, which is added at checkout.
Project quantities or a lead time to check? Request a quote
Specifications
Electrical
| Earthing system (as supplied) | TT |
|---|---|
| Application | Mains AC |
Protection
| SPD type | Type 1+2 |
|---|
Fit
| Replaces | N (N-PE) |
|---|
Identification
| Brand | Mersen |
|---|---|
| Part number | 83120005 |
| EAN | 8435297850342 |
| Range | Mersen Surge-Trap STPT12 |
| Part type | Replacement module / cartridge |
More technical data
| Manufacturer | Mersen (Surge-Trap, catalogue SP12-25K-N) |
|---|---|
| Function | neutral-to-earth (N-PE) replacement cartridge |
| For use in | two-pole Surge-Trap STPT12 TT devices |
| Max continuous operating voltage Uc | 255V |
| Lightning impulse current Iimp (10/350) | 25kA; Imax (8/20): 50kA |
| Nominal discharge current In (8/20) | 25kA; Up at In: 1.5kV |
Product details
On a two-pole TT arrester the neutral-to-earth cartridge is a different component from the line cartridge beside it, and it is rated to take 25kA of lightning impulse current. This is the Mersen SP12-25K-N replacement for that position, plugging into the installed chassis without touching the wiring.
Key features
- Neutral-to-earth cartridge for two-pole Surge-Trap STPT12 TT arresters
- Iimp of 25kA (10/350) and Imax of 50kA at a 1.5kV protection level
- Mechanically coded so it can only be fitted in the correct position
- Plugs into the installed chassis - no conductors need re-terminating
- Restores full Type 1+2 duty after an end-of-life indication
Typical applications
Two-pole TT arresters are used on single-phase electrode-earthed supplies: farms and rural properties, pumping and telemetry stations, site cabins and outbuildings, telecoms enclosures and LV metering positions. Holding the neutral cartridge as a spare means a red indicator can be cleared on the same visit rather than the next one.
Compliance
Part of the Surge-Trap STPT12 Type 1+2 / Class I+II range tested to IEC 61643-11 and EN 61643-11. Cartridges are mechanically coded to their position - fit only the cartridge specified for the pole and device you are servicing.
Order today for fast UK dispatch, or send us the arrester catalogue number and we will confirm the correct cartridge.
