Mersen 83230124 STPT23-20K150V-4PG Type 2+3 surge protection device with 20 kA discharge capacity, 150 V AC continuous operating voltage and 3+1 TT four-pole configuration.
Original price was: £119.04.£87.97Current price is: £87.97.
The Mersen 83230124 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 Series, this device provides dependable surge protection for three-phase plus neutral systems in commercial, industrial and automation environments.
This pluggable surge protection device is engineered to discharge voltage surges while providing a fine level of voltage protection close to sensitive electrical equipment. Its modular construction supports straightforward installation and fast replacement, helping reduce downtime during maintenance.
With a maximum discharge current of 20 kA (8/20 μs), a 150 V AC continuous operating voltage (Uc) and a 3+1 TT configuration, the Mersen 83230124 is well suited for distribution boards, machinery panels and electrical systems operating at 120/208 V AC.
Surge protection devices help divert damaging voltage spikes away from connected equipment before they can cause faults, insulation damage or unplanned downtime. They are essential in installations where sensitive automation, control and power equipment must remain protected.
The Mersen STPT23 range is designed as a compact final stage of protection for low voltage installations, making it suitable for use close to the equipment being protected in switchboards, control panels and machinery systems.
| Voltage | 208 V |
|---|---|
| Phase | Three Phase |
| Manufacturer | Mersen |
| Series | Surge-Trap® Pluggable STPT23 Series |
| Model | STPT23-20K150V-4PG |
| SKU | 83230124 |
| Product type | Surge Protection Device (SPD) |
| SPD classification | Type 2+3 / Class II+III |
| Maximum discharge current (Imax) | 20 kA (8/20 μs) |
| Nominal discharge current (In) | 10 kA |
| Continuous operating voltage (Uc) | 150 V AC |
| Nominal operating voltage | 120/208 V AC |
| System configuration | 3+1 TT |
| Network type | 3-phase + neutral |
| Number of poles | 4 |
| Number of modules | 4 |
| Format | Pluggable modular device |
| Mounting type | DIN rail |
| Standard | EN/IEC 61643-11 |
| Replacement plug L-N | SP23-20K150V |
| Replacement plug N-PE | SP23-20K-N |
| 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 83230124 is a Type 2+3 / Class II+III surge protection device.
This device has a maximum discharge current of 20 kA (8/20 μs).
It is designed for 120/208 V AC three-phase plus neutral TT systems using a 3+1 configuration.
Yes. The device has a pluggable modular format, allowing fast replacement during maintenance.
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.
● 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...