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Mersen Surge Protector Type 2+3 SPD 3 Pole 400/480 Volt 10KA TNC Remote Indication
Mersen 83230123 STPT23-20K320V-3PM Type 2+3 surge protection device with 20 kA discharge capacity, 320 V AC continuous operating voltage, 3+0 TNC configuration and remote indication.
£78.11
Why Choose the Mersen 83230123 Surge Protection Device?
The Mersen 83230123 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 reliable protection for three-phase power systems used in commercial, industrial and automation environments.
This pluggable surge protection device is engineered to help protect electrical equipment from voltage spikes caused by lightning activity, switching operations and network disturbances. Its compact modular format supports straightforward DIN rail installation, while the integrated remote indication contact enables easy monitoring of end-of-life status.
With a maximum discharge current of 20 kA (8/20 μs), a 320 V AC continuous operating voltage (Uc) and a 3+0 TNC configuration, the Mersen 83230123 is well suited for distribution boards, machinery panels and industrial control systems requiring dependable surge protection.
Key Advantages
- High performance Type 2+3 surge protection device.
- 20 kA maximum discharge current for dependable transient overvoltage protection.
- 320 V AC continuous operating voltage for three-phase electrical systems.
- Remote indication contact for status monitoring.
- Pluggable modular design for simple maintenance and replacement.
- Helps protect distribution boards, control panels and sensitive electrical equipment.
Key Features
- Mersen Surge-Trap® Pluggable STPT23 Series.
- Catalogue number: STPT23-20K320V-3PM.
- Type 2+3 / Class II+III surge protection device.
- 20 kA Imax (8/20 μs).
- 10 kA nominal discharge current (In).
- 320 V AC continuous operating voltage (Uc).
- Three-pole, 3+0 TNC configuration.
- Pluggable format with remote indication.
Reliable Protection Against Transient Overvoltages
Surge protection devices help divert harmful voltage spikes away from connected equipment before they can cause insulation damage, system faults or unplanned downtime. They are essential for protecting modern electrical installations where sensitive automation, control and power equipment is used.
The Mersen STPT23 range is designed as a compact final stage of protection for low voltage installations, making it suitable for installation close to the equipment being protected in control panels, switchboards 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 TNC electrical installations.
Technical Specifications
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| Voltage | 480 V | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | Surge protection device | |
| SPD Type | Type 2+3 | |
| Earthing System | TN-C | |
| Nominal Discharge Current (In) | 10 kA | |
| Remote Signal | Yes | |
| Manufacturer | Mersen | |
| Series | Surge-Trap® Pluggable STPT23 Series | |
| Model | STPT23-20K320V-3PM | |
| SKU | 83230123 | |
| 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) | 320 V AC | |
| Nominal operating voltage | 277/480 V AC | |
| System configuration | TN-C | |
| Number of poles | 3 | |
| Number of modules | 3 | |
| Format | Pluggable modular device | |
| Mounting type | DIN rail | |
| Remote indication | Yes | |
| Standard | EN/IEC 61643-11 | |
| RoHS compliant | Yes | |
| EAN/UPC | 8435297849308 | |
| HS Code | 85363090 | |
| Country of Manufacture | Spain |
Frequently Asked Questions
What is the Mersen 83230123 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 83230123?
The Mersen 83230123 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 electrical system is this device designed for?
It is designed for three-phase 3+0 TNC systems with a nominal operating voltage of 277/480 V AC.
Does the Mersen 83230123 include remote indication?
Yes. The device includes remote indication, allowing its status to be monitored within electrical control or building management systems.
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.
