Mersen 83230103 STPT23-20K320V-1PM Type 2+3 pluggable surge protection device with 20 kA Imax, 320 V AC Uc and remote indication for 230/277 V AC L-N electrical systems.
Original price was: £36.11.£26.68Current price is: £26.68.
The Mersen 83230103 is a compact and reliable Type 2+3 surge protection device (SPD) designed to protect low-voltage electrical systems from transient overvoltages. Part of the Mersen Surge-Trap® Pluggable STPT23 Series, it is suitable for industrial, commercial and OEM installations where sensitive electrical equipment requires dependable surge protection.
This pluggable SPD is designed for protection between line and neutral (L-N) in single-phase AC systems. Its modular format allows quick replacement of the protection cartridge, while the integrated remote indication feature enables status monitoring through control circuits, building systems or maintenance panels.
With a 20 kA maximum discharge current and 320 V AC maximum continuous operating voltage, the Mersen 83230103 helps protect control panels, automation equipment, PLCs, drives, power supplies and instrumentation from damaging 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 premature equipment failure, unplanned downtime and costly repairs.
The Mersen 83230103 includes remote indication, making it particularly useful in control panels and installations where maintenance teams need to monitor protection status without opening the enclosure. This helps support planned maintenance and improves visibility of electrical protection systems.
| Voltage | 277 V |
|---|---|
| Phase | Single Phase |
| Manufacturer | Mersen |
| Series | Surge-Trap® Pluggable STPT23 Series |
| Model | STPT23-20K320V-1PM |
| SKU | 83230103 |
| Product type | Surge Protection Device |
| SPD classification | Type 2+3 / Class II + III |
| Nominal operating voltage | 230 / 277 V AC |
| Maximum continuous operating voltage | 320 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 |
| Remote indication | Yes |
| Mounting type | DIN rail |
| RoHS compliant | Yes |
| HS Code | 85363090 |
| Country of Manufacture | Spain |
The Mersen 83230103 is used to protect low-voltage electrical installations and sensitive equipment from transient overvoltages.
It is a Type 2+3 / Class II + III surge protection device from the Mersen Surge-Trap® Pluggable STPT23 Series.
Yes. The 83230103 includes remote indication for signalling SPD status to external monitoring or control circuits.
It is designed for 230/277 V AC single-phase L-N systems with a 320 V AC maximum continuous operating voltage.
It is designed for DIN rail installation inside electrical panels, switchboards, control cabinets and OEM machinery enclosures.
Mersen Surge-Trap® surge protection devices are widely used by electrical engineers, panel builders and maintenance professionals to protect critical power and automation equipment from damaging transient overvoltages.
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
● frequently asked questions
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
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...