Mersen Surge-Trap STPT2-40K275V-2PM Type 2 Surge Protection Device, 2 Pole TN-S
- Brand:
- Mersen
- Part number:
- 83020123
- EAN:
- 8435297849209
Two-pole pluggable Type 2 surge arrester for single-phase TN-S systems, rated Imax 40kA at a 1.3kV protection level with a remote end-of-life contact.
- Type 2 protection for single-phase TN-S
- Imax 40kA, In 20kA, Up 1.3kV
- Remote end-of-life contact
- Plug-in coded cartridges
- Reversible cable entry
13 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
| Supply | Single phase |
|---|---|
| Earthing system | TN-S, TN-C-S (PME) |
| Earthing system (as supplied) | TN |
| Remote signalling contact | Yes |
| Application | Mains AC |
Protection
| SPD type | Type 2 |
|---|---|
| Nominal discharge current (In) | 20 kA |
| Max discharge current (Imax) | 40 kA |
| Voltage protection level (Up) | 1.3 kV |
Dimensions
| DIN rail width | 2 modules |
|---|
Construction
| Replaceable protection module | Yes |
|---|
Fit
| Mounting | DIN rail |
|---|
Identification
| Brand | Mersen |
|---|---|
| Part number | 83020123 |
| EAN | 8435297849209 |
| Range | Mersen Surge-Trap STPT2 |
More technical data
| Manufacturer | Mersen (Surge-Trap STPT2, catalogue STPT2-40K275V-2PM) |
|---|---|
| SPD class | Type 2 / Class II to IEC 61643-11 and EN 61643-11 |
| System | TN-S, single phase plus neutral; Un 230 VAC; Uc 275V |
| Max discharge current Imax (8/20) | 40kA; nominal discharge current In: 20kA |
| Voltage protection level Up at In | 1.3kV |
| Remote contact | yes; cartridge SP2-40K275V |
- Response time 25ns; back-up fuse 125A gG; Icc 25kA
- IP20, PA66 CT1 V-0 body, -40 to +80C, reversible chassis
Product details
Configured for single-phase TN-S boards, this Surge-Trap STPT2 arrester uses the same 275V cartridge on both poles. It limits switching and induced surges to a 1.3kV protection level, handles a 40kA maximum discharge current, and brings its end-of-life status out on a remote contact.
Key features
- Type 2 / Class II protection for single-phase TN-S distribution boards
- Both poles use the SP2-40K275V cartridge, so one spare covers either position
- Imax of 40kA, In of 20kA and a 1.3kV protection level
- Mechanically coded plug-in cartridges, replaced without disturbing wiring
- Visual and remote end-of-life indicators with a 25ns response time
Typical applications
Fit it at supply distribution panels in commercial and industrial buildings, IT and comms rooms, retail and hospitality units, LED outdoor lighting control panels, water treatment installations and metering positions. It works either as second-stage protection behind a Type 1 device or as the first stage where no external lightning protection system exists.
Compliance
Tested to IEC 61643-11 and EN 61643-11 as a Type 2 / Class II device, with a PA66 CT1 V-0 body and IP20 protection. BS 7671 requires transient overvoltage risk to be assessed and coordinated protection provided where the consequences justify it.
Order today for fast UK dispatch on genuine Mersen surge protection at trade-direct prices.
