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Mersen Surge Protector Type 1+2 SPD 1 Pole Neutral 50KA N-PE Remote Indication
Mersen 83120110 STPT12-50K-N Type 1+2 neutral surge protection device with 50 kA surge protection rating, 255 V maximum continuous operating voltage, 1-pole pluggable DIN rail design and compact 1-module format.
This product has been discontinued
A direct replacement is available below.
Replacement product
K1-1PG Mersen Surge Protector Type 1+2 SPD 1 Pole Neutral 50KA N-PE Remote Indication
SKU: 44120100
£92.30 ex VAT
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Why Choose the Mersen 83120110 Surge Protection Device?
The Mersen 83120110 STPT12-50K-N is a high-capacity Type 1+2 surge protection device (SPD) designed for neutral protection in low-voltage electrical installations. Part of the Mersen Surge-Trap® Pluggable STPT12 Series, it is suitable for incoming supply panels, main distribution boards and installations requiring dependable protection against lightning currents and transient overvoltages.
This surge protection module is designed for use in the neutral path of coordinated SPD systems, helping safely discharge high-energy surge currents and protect downstream electrical equipment. Its compact pluggable construction supports fast installation, simple maintenance and quick replacement when required.
With a 50 kA surge protection rating, 255 V maximum continuous operating voltage (Uc) and 1-pole, 1-module DIN rail format, the 83120110 provides robust neutral protection for commercial, industrial and infrastructure electrical systems.
Key Advantages
- Type 1+2 surge protection device for lightning current and transient overvoltage protection.
- 50 kA surge protection rating for high-energy neutral protection.
- Designed for neutral protection in low-voltage electrical systems.
- 255 V maximum continuous operating voltage.
- Compact 1-pole pluggable design for DIN rail installation.
- Suitable for incoming power supply panels and main distribution boards.
Key Features
- Mersen Surge-Trap® STPT12 Series.
- Catalogue number: 83120110.
- Model: STPT12-50K-N.
- IEC Type 1+2 / Class I+II surge protection.
- Neutral protection module.
- 255 V AC maximum continuous operating voltage (Uc).
- 1-pole, 1-module pluggable format.
- DIN rail mounting.
- Designed for use in coordinated surge protection systems.
- Suitable for low-voltage power distribution applications.
Reliable Neutral Protection for Electrical Installations
Neutral surge protection modules form part of coordinated SPD arrangements used to protect electrical systems from lightning currents, switching surges and transient voltage spikes. Installing suitable surge protection at the incoming supply point helps reduce the risk of equipment damage, downtime and costly disruption.
The Mersen STPT12 Series is engineered for demanding distribution systems where reliable protection, compact design and straightforward maintenance are required. The pluggable module format allows quick replacement without rewiring the complete assembly.
Typical Applications
- Main electrical distribution boards.
- Incoming power supply panels.
- Industrial automation systems.
- Commercial building installations.
- Control panels and machinery supplies.
- Infrastructure and critical power systems.
Technical Specifications
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| Phase | Single Phase | |
|---|---|---|
| Poles | 1-pole | |
| Device Type | Surge protection device | |
| SPD Type | Type 1+2 | |
| Manufacturer | Mersen | |
| Series | Surge-Trap® Pluggable STPT12 | |
| Model | STPT12-50K-N | |
| Part number | 83120110 | |
| Product type | Type 1+2 Surge Protection Device | |
| IEC classification | Class I+II | |
| Surge protection rating | 50 kA | |
| Maximum continuous operating voltage (Uc) | 255 V AC | |
| Protection type | Neutral protection module | |
| Protection mode | N | |
| Number of poles | 1 | |
| Module width | 1 module | |
| Mounting type | DIN rail | |
| Format | Pluggable | |
| Application | Low-voltage surge protection systems | |
| HS Code | 85363090 | |
| Country of Manufacture | Spain |
Frequently Asked Questions
What is the Mersen 83120110 used for?
It is used as a neutral protection module within Type 1+2 surge protection systems for low-voltage electrical installations.
What type of surge protection device is it?
The 83120110 is a Type 1+2 (Class I+II) surge protection device for lightning current and transient overvoltage protection.
What is the maximum continuous operating voltage?
The Mersen 83120110 has a 255 V AC maximum continuous operating voltage (Uc).
Is the Mersen 83120110 pluggable?
Yes. It uses a pluggable single-module design, allowing quick replacement of the protection module.
Where is this SPD typically installed?
It is typically installed on a DIN rail in main distribution boards or incoming supply panels as part of a coordinated surge protection arrangement.
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.
