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Mersen Surge Protector Type 2+3 SPD 4 Pole 230/400 Volt 10KA TT
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.
£96.80
Why Choose the Mersen 83230126 Surge Protection Device?
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.
Key Advantages
- High performance Type 2+3 surge protection device.
- 20 kA maximum discharge current for reliable transient overvoltage protection.
- 275 V AC continuous operating voltage for low voltage electrical installations.
- Four-pole design suitable for three-phase plus neutral systems.
- Pluggable modular construction for fast maintenance and replacement.
- Helps protect control panels, distribution boards and sensitive automation equipment.
Key Features
- Mersen Surge-Trap® Pluggable STPT23 LF Series.
- Model: STPT23-20K275V-4PG-LF.
- Type 2+3 / Class II+III surge protection device.
- 20 kA Imax (8/20 μs).
- 275 V AC maximum continuous operating voltage (Uc).
- 230/400 V AC nominal operating voltage.
- Four-pole modular format.
- DIN rail mounting for panel installation.
Reliable Protection Against Electrical Surges
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.
Typical Applications
- Industrial control panels.
- Electrical distribution boards.
- Automation and machinery systems.
- Commercial building services.
- PLC, drive and instrumentation protection.
- Three-phase plus neutral electrical installations.
Technical Specifications
Tick the specs you need, then view products that match.
| Voltage | 400 V | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 4-pole | |
| Device Type | Surge protection device | |
| SPD Type | Type 2+3 | |
| Earthing System | TN-S, TT | |
| Nominal Discharge Current (In) | 10 kA | |
| Remote Signal | No | |
| 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 |
Frequently Asked Questions
What is the Mersen 83230126 used for?
It is used to protect low voltage electrical installations and connected equipment from transient overvoltages caused by lightning activity, switching events and electrical disturbances.
What type of surge protection device is the Mersen 83230126?
The Mersen 83230126 is a Type 2+3 / Class II+III surge protection device.
What is the maximum discharge current of this SPD?
This device has a maximum discharge current of 20 kA (8/20 μs).
What voltage rating does this device have?
The device has a 275 V AC continuous operating voltage and is suitable for 230/400 V AC low voltage systems.
How is the Mersen 83230126 installed?
It is a DIN rail mounted pluggable modular device, making it suitable for installation inside electrical panels and distribution boards.
Trusted by Electrical Professionals Worldwide
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.
