Mersen 83230126 STPT23-20K275V-4PG-LF Type 2+3 surge protection device with 20 kA discharge capacity, 275 V AC continuous operating voltage and four-pole DIN rail mounting format.
£129.07
The Mersen 83230126 is a high performance Type 2+3 Surge Protection Device (SPD) designed to protect low voltage electrical installations against transient overvoltages. Part of the Mersen Surge-Trap® Pluggable STPT23 LF Series, this device provides dependable protection for three-phase plus neutral electrical systems in commercial, industrial and automation environments.
This pluggable SPD is designed for final stage protection close to sensitive equipment, helping reduce the risk of damage caused by lightning-induced surges, switching transients and electrical disturbances. Its compact DIN rail format supports straightforward installation in distribution boards and control panels.
With a maximum discharge current of 20 kA (8/20 μs), a 275 V AC continuous operating voltage (Uc) and a 4-pole configuration, the Mersen 83230126 is ideal for protecting electrical panels, machinery controls and automation equipment operating on 230/400 V AC systems.
Surge protection devices help divert damaging transient voltages away from connected equipment before they can cause insulation breakdown, component failure or unplanned downtime. They are an essential part of protecting modern electrical systems that use sensitive electronic and automation equipment.
The Mersen Surge-Trap® STPT23 LF range is designed for low voltage installations requiring compact and reliable surge protection, making it suitable for control panels, switchboards, building services and machinery systems.
| Voltage | 400 V |
|---|---|
| Phase | Three Phase |
| Manufacturer | Mersen |
| Series | Surge-Trap® Pluggable STPT23 LF Series |
| Model | STPT23-20K275V-4PG-LF |
| SKU | 83230126 |
| Product type | Surge Protection Device (SPD) |
| SPD classification | Type 2+3 / Class II+III |
| Maximum discharge current (Imax) | 20 kA (8/20 μs) |
| Continuous operating voltage (Uc) | 275 V AC |
| Nominal operating voltage (Un) | 230/400 V AC |
| Number of poles | 4 |
| Mounting type | DIN rail |
| Format | Pluggable modular device |
| Standards | EN/IEC 61643-11 |
| Height | approx. 90 mm |
| Width | approx. 72 mm |
| Depth | approx. 70 mm |
| RoHS compliant | Yes |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
It is used to protect low voltage electrical installations and connected equipment from transient overvoltages caused by lightning activity, switching events and electrical disturbances.
The Mersen 83230126 is a Type 2+3 / Class II+III surge protection device.
This device has a maximum discharge current of 20 kA (8/20 μs).
The device has a 275 V AC continuous operating voltage and is suitable for 230/400 V AC low voltage systems.
It is a DIN rail mounted pluggable modular device, making it suitable for installation inside electrical panels and distribution boards.
Mersen Surge-Trap® surge protection devices are trusted by electrical engineers, panel builders and maintenance teams to protect critical electrical infrastructure from damaging transient overvoltages.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...