Mersen Surge-Trap STPT2-40K275V-4PGM Type 2 Surge Protection Device, 4 Pole TT
- Brand:
- Mersen
- Part number:
- 83020147
- EAN:
- 8435297849230
Four-pole pluggable Type 2 surge arrester for three-phase TT systems at 230/400V, rated Imax 40kA per phase with a remote end-of-life contact.
- Type 2 protection for three-phase TT
- 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.
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Specifications
Electrical
| Supply | Three 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 | 4 modules |
|---|
Construction
| Replaceable protection module | Yes |
|---|
Fit
| Mounting | DIN rail |
|---|
Identification
| Brand | Mersen |
|---|---|
| Part number | 83020147 |
| EAN | 8435297849230 |
| Range | Mersen Surge-Trap STPT2 |
More technical data
| Manufacturer | Mersen (Surge-Trap STPT2, catalogue STPT2-40K275V-4PGM) |
|---|---|
| SPD class | Type 2 / Class II to IEC 61643-11 and EN 61643-11 |
| System | TT, three phase plus neutral; Un 230/400 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
Three-phase TT boards need a neutral-to-earth element as well as line protection, and this four-pole Surge-Trap STPT2 provides both. Each phase is rated at 40kA maximum discharge current with the protection level held to 1.3kV, and the neutral path uses a dedicated 265V cartridge.
Key features
- Type 2 / Class II protection for three-phase TT distribution boards
- Three line cartridges plus a dedicated neutral-to-earth cartridge
- Imax of 40kA and In of 20kA per phase at a 1.3kV protection level
- Mechanically coded plug-in cartridges for error-free replacement
- Visual and remote end-of-life indicators, 25ns response time
Typical applications
Use it on three-phase supply distribution panels with an electrode earth: agricultural and horticultural installations, water and wastewater pumping, quarries and outdoor materials handling, telecoms and broadcast compounds, wind and solar balance-of-plant panels, and temporary site distribution.
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 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.
