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Mersen Surge Protector Type 1+2 SPD 4 Pole 120/208 Volt 20KA TT Remote Indication
MPN: 83120137
Alt. SKU: STPT12-12K150V-4PGM
Special Price
£358.06
£298.38
Regular Price
£484.50
Why Choose the STPT12-12K150V-4PGM Surge Protection Device?
The STPT12-12K150V-4PGM offers robust Type 1+2 surge protection, specifically designed for 3-phase+N TT systems at 120/208V. Rated at 12.5kA Iimp (10/350µs), it delivers reliable defence against direct lightning strikes and switching surges, safeguarding critical electrical infrastructure.
This pluggable, 4-pole, 4-module unit allows fast replacement and minimises downtime. With integrated remote indication for status monitoring, it is engineered for professional, continuous-service environments where operational resilience is paramount.
Technical Specifications
- Item number: 83120137
- Catalogue No: STPT12-12K150V-4PGM
- Description: Surge Protection Device Type 1+2, 12.5kA Iimp (10/350), 3Ph+N, 120/208V, 3+1 TT, 4 Poles, Pluggable, 4 Modules, Remote indication
- EAN/UPC Code: 8435297851516
- RoHS Compliant: Yes
- IEC SPD Type: Class I+II
- Format: Pluggable
- Nominal Operating Volt Rating (Un): 120/208
- AC or DC: AC
- Max Discharge Current : Imax (8/20): 50 kA
- Protection Modes: L-N / N-PE
- System Configuration: TT, TNS
- Lightning Impulse Current (10/350) (LIMP): 12.5 kA
- Following Current (Ifi): 100 A
- Short Circuit Withstand (ISCCR): 25 kA
- Indication System: Yes
- Indication System Type: Green (OK) / Not green (replace) Microswitch
- Number of Poles: 4-Pole
- Torque Rating: 3 Nm
- Max. Back-Up Fuse: 200 A [gG]
- Housing Material: PA66 CT1
- Installation Mounting: DIN rail
- Uc (L-N): 150 V
- Uc (N-PE): 255 V
- Up at In (N-PE): ≤1,5 kV
- Up at In (L-N): ≤1 kV
- Replacement Plug N-PE: 83120006
- Replacement Plug L-N: 83120001
- Product Width: 72 mm
- Product Length: 76 mm
- Product Height: 90 mm
- Sell Pack Quantity: 1 EA
- Sell Pack Weight: 0.56 kg
- Sell Pack Width: 78 mm
- Sell Pack Length: 117 mm
- Sell Pack Height: 90 mm
- Product group: Power Line SPDs
- Product Weight: 0.515 kg
Product Code: STPT12-12K150V-4PGM
Key Benefits
- High surge current capacity with 12.5kA lightning impulse current rating for superior protection.
- Pluggable 4-pole design enables quick replacement, reducing downtime.
- Integrated remote indication allows continuous status monitoring for proactive maintenance.
- Suitable for 3-phase+N TT systems at 120/208V ensuring broad compatibility.
- Robust construction with PA66 CT1 housing for durability and safety.
Compatibility
This surge protection device is compatible with TT and TNS system configurations operating at 120/208V AC. It is designed for use in 3-phase plus neutral electrical installations requiring Type 1+2 surge protection, especially in environments where DIN rail mounting is standard.
Applications
- Industrial and commercial electrical distribution boards.
- Protection of sensitive equipment in manufacturing plants.
- Surge protection for critical infrastructure in professional environments.
- Use in buildings with 3-phase+N TT electrical systems.
- Systems requiring remote signalling for maintenance alerts.
Frequently Asked Questions
What type of systems is the STPT12-12K150V-4PGM designed for?
It is designed for 3-phase+N TT and TNS systems operating at 120/208V AC.
Can this device be replaced without rewiring?
Yes, the pluggable 4-module design allows for quick and easy replacement without rewiring.
Does the device provide remote status indication?
Yes, it features integrated remote indication with a green (OK) / not green (replace) microswitch.
What is the maximum back-up fuse rating for this SPD?
The maximum back-up fuse rating is 200 A [gG].
Common Search Terms
Surge protection device, SPD Type 1+2, 12.5kA surge protector, 3-phase surge protector, pluggable SPD, remote indication SPD, DIN rail surge protector, TT system surge protection, power line SPD.
| Manufacturer Part Number | 83120137 |
|---|---|
| Packed Quantity | 1 |
| Barcode | 8435297851516 |
| Height | 76mm |
| Width | 72mm |
| Depth | 90mm |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
| Manufacturer | Mersen |
| Number of Poles | 4 Pole |
| Voltage | 120/208V |
| Maximum Continuous Voltage | 150V |
| Nominal Discharge Current | 20Ka |
| Remote Indication | Yes |
| System Type | TT |
| Alternative Product SKU | STPT12-12K150V-4PGM |
Write Your Own Review
Protection system of coordinated stages: Type 1, 2 and 3 SPDs
The SPDs of a surge protection system must be able to withstand the discharged current and provide a Ures level (residua l voltage) lower than the Ue peak voltage that the equipment can withstand. Most of the times it is not possible to achieve this with just one SPD, especially because the intensity of the surge is not known, and because of the induction of overvoltages when conductors exceed 10m.
The optimal system of protection is the 3-STEP approach, in which successive stages are combined in the performance of high discharge capacity devices and devices with an optimal voltage protection level (low). This is addressed by the definition of "Types" or "Classes" of SPDs according to the type of transient pulses to which each protected zone in the installation is subject to.
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