Mersen Surge-Trap STPT2-40K275V-2PGM Type 2 Surge Protection Device, 2 Pole TT
- Brand:
- Mersen
- Part number:
- 83020117
- EAN:
- 8435297849193
Two-pole pluggable Type 2 surge arrester for single-phase TT systems, rated Imax 40kA with a remote end-of-life contact and mechanically coded cartridges.
- Type 2 protection for single-phase TT
- Imax 40kA, In 20kA, Up 1.3kV
- Remote end-of-life contact
- Plug-in coded cartridges
- Reversible cable entry
8 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.
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Specifications
Electrical
| Supply | Single phase |
|---|---|
| Earthing system | TT, TN-S, TN-C-S (PME) |
| Earthing system (as supplied) | TT/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 | 83020117 |
| EAN | 8435297849193 |
| Range | Mersen Surge-Trap STPT2 |
More technical data
| Manufacturer | Mersen (Surge-Trap STPT2, catalogue STPT2-40K275V-2PGM) |
|---|---|
| SPD class | Type 2 / Class II to IEC 61643-11 and EN 61643-11 |
| System | TT, 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 (L-N), 1.5kV (N-PE) |
| Remote contact | yes; cartridges SP2-40K275V (L-N) and SP2-40K-N (N-PE) |
- Response time 25ns; back-up fuse 125A gG; Icc 25kA
- IP20, PA66 CT1 V-0 body, -40 to +80C, reversible chassis
Product details
Mersen's Surge-Trap STPT2 is the distribution-board arrester in the pluggable range, and this two-pole version is configured for single-phase TT systems. It handles a 40kA maximum discharge current, clamps at 1.3kV line to neutral, and signals its own end of life locally and remotely.
Key features
- Type 2 / Class II protection for single-phase TT distribution boards
- Two-pole TT configuration with a dedicated neutral-to-earth cartridge
- Imax of 40kA and In of 20kA at a 1.3kV line-neutral protection level
- Mechanically coded plug-in cartridges prevent replacement errors
- Visual and remote end-of-life indicators, with a 25ns response time
Typical applications
Type 2 devices belong at supply distribution panels, either downstream of a Type 1 arrester or as first-stage protection where there is no external lightning protection system and no direct strike risk. On TT systems that means rural and agricultural boards, pumping and telemetry stations, site and temporary supplies, LED outdoor lighting panels and telecoms cabinets.
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 for enclosure mounting. BS 7671 requires the risk from transient overvoltages to be assessed, with coordinated surge protection provided where the consequences justify it.
Order today for fast UK dispatch on genuine Mersen surge protection at trade-direct prices.
