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Mersen Surge Protector Type 1+2 SPD 2 Pole 230 Volt 20KA TT Remote Indication
Mersen 83120115 STPT12-12K275V-2PGM Type 1+2 surge protection device with 12.5 kA lightning impulse current, 230 V nominal operating voltage, 1Ph+N 1+1 TT configuration, 2-pole pluggable DIN rail design and remote indication.
This product has been discontinued
A direct replacement is available below.
Replacement product
K1-2PG275-M Mersen Surge Protector Type 1+2 SPD 2 Pole 230 Volt 20KA TT Remote Indication
SKU: 44120201
£130.53 ex VAT
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Why Choose the Mersen 83120115 Surge Protection Device?
The Mersen 83120115 STPT12-12K275V-2PGM is a reliable Type 1+2 surge protection device (SPD) designed to protect low-voltage electrical installations against lightning currents and transient overvoltages. Part of the Mersen Surge-Trap® Pluggable STPT12 Series, it is suitable for main distribution boards, incoming power supply panels and installations requiring dependable first-level surge protection.
This device provides combined protection for single-phase plus neutral systems, using a 1+1 TT configuration with L-N and N-PE protection modes. Its pluggable format allows quick replacement of protection modules, while integrated remote indication supports convenient monitoring of device status.
With a 12.5 kA lightning impulse current (10/350 μs), 230 V nominal operating voltage (Un) and 275 V L-N maximum continuous operating voltage (Uc), the 83120115 provides robust protection for industrial, commercial and building electrical systems.
Key Advantages
- Type 1+2 surge protection device for lightning current and transient overvoltage protection.
- 12.5 kA Iimp (10/350 μs) lightning impulse current rating.
- 1Ph+N 1+1 TT configuration for single-phase plus neutral systems.
- 230 V nominal operating voltage with 275 V L-N maximum continuous operating voltage.
- Compact 2-pole pluggable design for DIN rail installation.
- Integrated remote indication for device status monitoring.
Key Features
- Mersen Surge-Trap® STPT12 Series.
- Catalogue number: 83120115.
- Model: STPT12-12K275V-2PGM.
- IEC Type 1+2 / Class I+II surge protection.
- 230 V AC nominal operating voltage (Un).
- 275 V AC maximum continuous operating voltage L-N.
- 255 V AC maximum continuous operating voltage N-PE.
- 2-pole, 2-module pluggable format.
- Remote indication for monitoring.
- DIN rail mounting.
Reliable Protection Against Transient Overvoltages
Surge protection devices help protect electrical equipment from voltage spikes caused by lightning activity, switching operations and power network disturbances. Installing a Type 1+2 SPD at the incoming supply point helps reduce the risk of equipment damage, downtime and disruption to critical electrical systems.
The Mersen STPT12 Series is engineered for low-voltage distribution applications where reliable surge protection, compact installation and straightforward maintenance are required. The pluggable format allows protection modules to be replaced quickly without rewiring the complete assembly.
Typical Applications
- Main electrical distribution boards.
- Incoming power supply panels.
- Single-phase plus neutral electrical systems.
- Commercial building installations.
- Industrial control panels.
- Infrastructure and critical power systems.
Technical Specifications
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| Impulse Current Iimp (kA) | 12.5 kA | |
|---|---|---|
| Voltage | 230 V | |
| Phase | Single Phase | |
| Poles | 2-pole | |
| Device Type | Surge protection device | |
| SPD Type | Type 1+2 | |
| Earthing System | TN-S, TT | |
| Nominal Discharge Current (In) | 20 kA | |
| Remote Signal | Yes | |
| Manufacturer | Mersen | |
| Series | Surge-Trap® Pluggable STPT12 | |
| Model | STPT12-12K275V-2PGM | |
| Part number | 83120115 | |
| Product type | Type 1+2 Surge Protection Device | |
| IEC classification | Class I+II | |
| Lightning impulse current (Iimp 10/350 μs) | 12.5 kA | |
| Nominal discharge current (In 8/20 μs) | 20 kA | |
| Nominal operating voltage (Un) | 230 V AC | |
| Maximum continuous operating voltage L-N (Uc) | 275 V AC | |
| Maximum continuous operating voltage N-PE (Uc) | 255 V AC | |
| Protection modes | L-N / N-PE | |
| System configuration | TN-S, TT | |
| Number of poles | 2 | |
| Module width | 2 modules | |
| Mounting type | DIN rail | |
| Remote indication | Yes | |
| Format | Pluggable | |
| HS Code | 85363090 | |
| Country of Manufacture | Spain |
Frequently Asked Questions
What is the Mersen 83120115 used for?
It is used to protect single-phase plus neutral low-voltage electrical installations from lightning currents and transient overvoltages.
What type of surge protection device is it?
The 83120115 is a Type 1+2 (Class I+II) surge protection device for combined lightning current and surge protection.
What voltage is the Mersen 83120115 rated for?
It has a 230 V AC nominal operating voltage and a 275 V AC maximum continuous operating voltage L-N.
Does the Mersen 83120115 have remote indication?
Yes. This model includes remote indication, allowing the SPD status to be monitored from a control system or panel indicator.
Where is this SPD typically installed?
It is typically installed on a DIN rail in main distribution boards or incoming supply panels as the first level of surge protection.
Trusted Protection for Critical Electrical Systems
Mersen Surge-Trap® surge protection devices are trusted worldwide to help protect electrical installations, industrial equipment and critical infrastructure from the damaging effects of lightning strikes and transient overvoltages.
