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Mersen Surge Protector Type 2+3 SPD 1 Pole 400 Volt 10KA L-N
Mersen 83230104 STPT23-20K440V-1P Type 2+3 pluggable surge protection device with 20 kA Imax, 10 kA In and 440 V AC Uc for 400 V AC L-N electrical systems.
£23.40
Why Choose the Mersen 83230104 Surge Protection Device?
The Mersen 83230104 is a compact and dependable Type 2+3 surge protection device (SPD) designed to protect low-voltage electrical installations from transient overvoltages. Part of the Mersen Surge-Trap® Pluggable STPT23 Series, it provides fine surge protection for industrial, commercial and OEM power distribution systems.
This pluggable SPD is designed for line-to-neutral (L-N) protection in AC installations. Its modular construction allows fast replacement of the surge protection cartridge, helping simplify maintenance while reducing downtime in control panels and electrical distribution boards.
With a 20 kA maximum discharge current, 10 kA nominal discharge current and 440 V AC maximum continuous operating voltage, the Mersen 83230104 is suitable for protecting equipment connected to 400 V AC systems, including automation equipment, drives, PLCs, power supplies and instrumentation.
Key Advantages
- Compact Type 2+3 surge protection device for low-voltage installations.
- 20 kA Imax discharge capacity for reliable transient overvoltage protection.
- 440 V AC maximum continuous operating voltage for higher voltage systems.
- Pluggable 1-module format supports quick replacement and maintenance.
- Designed for 400 V AC line-to-neutral applications.
- Ideal for control panels, distribution boards and OEM electrical equipment.
Key Features
- Mersen Surge-Trap® Pluggable STPT23 Series.
- Type 2+3 / Class II + III surge protection device.
- 20 kA maximum discharge current (Imax).
- 10 kA nominal discharge current (In).
- 440 V AC maximum continuous operating voltage.
- 1-pole L-N configuration.
- Pluggable 1-module design.
- DIN rail mounting for panel installation.
Reliable Protection Against Voltage Surges
Surge protection devices help prevent damaging transient voltages from reaching sensitive equipment. By diverting surge energy away from connected loads, SPDs reduce the risk of failure, data loss, nuisance faults and unplanned downtime.
The Mersen 83230104 is designed for panel-mounted electrical protection where reliable surge suppression is required close to the equipment being protected. Its pluggable design makes it suitable for maintenance-friendly installations in industrial and commercial environments.
Typical Applications
- Industrial control panels.
- Commercial electrical distribution boards.
- PLC and automation systems.
- Variable speed drives and motor control equipment.
- Power supplies and instrumentation circuits.
- OEM machinery and panel building applications.
Technical Specifications
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| Voltage | 400 V | |
|---|---|---|
| Phase | Single Phase | |
| Poles | 1-pole | |
| Device Type | Surge protection device | |
| SPD Type | Type 2+3 | |
| Nominal Discharge Current (In) | 10 kA | |
| Manufacturer | Mersen | |
| Series | Surge-Trap® Pluggable STPT23 Series | |
| Model | STPT23-20K440V-1P | |
| SKU | 83230104 | |
| Product type | Surge Protection Device | |
| SPD classification | Type 2+3 / Class II + III | |
| Nominal operating voltage | 400 V AC | |
| Maximum continuous operating voltage | 440 V AC | |
| Connection mode | L-N | |
| Number of poles | 1 pole | |
| Format | Pluggable, 1 module | |
| Maximum discharge current (Imax) | 20 kA (8/20 μs) | |
| Nominal discharge current (In) | 10 kA (8/20 μs) | |
| Combined discharge voltage | 10 kV | |
| Mounting type | DIN rail | |
| Barcode | 8435297850557 |
Frequently Asked Questions
What is the Mersen 83230104 used for?
The Mersen 83230104 is used to protect low-voltage electrical installations and sensitive equipment from transient overvoltages.
What type of SPD is the 83230104?
It is a Type 2+3 / Class II + III surge protection device from the Mersen Surge-Trap® Pluggable STPT23 Series.
What voltage rating does this SPD support?
It is designed for 400 V AC systems with a 440 V AC maximum continuous operating voltage.
Is the Mersen 83230104 pluggable?
Yes. The pluggable cartridge design allows fast replacement, helping simplify maintenance in electrical panels and distribution boards.
Where is this surge protection device installed?
It is designed for DIN rail installation inside electrical panels, switchboards, control cabinets and OEM machinery enclosures.
Trusted by Electrical Professionals Worldwide
Mersen Surge-Trap® surge protection devices are widely used by electrical engineers, panel builders and maintenance professionals to protect power distribution and automation equipment from damaging transient overvoltages.
