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Mersen Surge Protector Type 2+3 SPD 1 Pole 400 Volt 10KA L-N Remote Indication

Mersen Surge Protector Type 2+3 SPD 1 Pole 400 Volt 10KA L-N Remote Indication

Mersen 83230105 STPT23-20K440V-1PM Type 2+3 surge protection device with remote indication, 20 kA maximum discharge current and 440 V AC maximum continuous operating voltage for 400 V AC systems.

SKU: 83230105Alt SKU: STPT23-20K440V-1PMMPN: 83230105
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List Price £36.82 ex VAT
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Why Choose the Mersen 83230105 Surge Protection Device?

The Mersen 83230105 is a high-performance Type 2+3 surge protection device (SPD) developed to protect low-voltage electrical systems against transient overvoltages caused by lightning strikes and switching events. As part of the Mersen Surge-Trap® Pluggable STPT23 Series, it offers dependable protection for industrial, commercial and OEM electrical installations.

This compact surge protection device is designed for 400 V AC line-to-neutral applications and features a pluggable cartridge with remote indication, allowing quick replacement while providing remote monitoring of the protection status. This makes it ideal for installations where preventative maintenance and continuous system availability are essential.

With a 20 kA maximum discharge current (Imax), 10 kA nominal discharge current (In) and a 440 V AC maximum continuous operating voltage (Uc), the Mersen 83230105 provides effective protection for automation equipment, PLCs, drives, switchboards and critical electrical systems.

Key Advantages

  • Compact Type 2+3 surge protection device for industrial and commercial installations.
  • 20 kA maximum surge discharge capacity for dependable transient protection.
  • Remote indication contact enables continuous monitoring of SPD status.
  • Pluggable cartridge simplifies servicing and replacement.
  • Designed for 400 V AC line-to-neutral systems.
  • Suitable for protecting sensitive automation and 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 (Uc).
  • 400 V AC nominal operating voltage.
  • Integrated remote indication contact.
  • DIN rail mounted pluggable design.

Reliable Protection for Critical Electrical Equipment

Transient overvoltages can damage sensitive electronic equipment, causing costly failures and unexpected downtime. Installing a quality surge protection device helps safeguard electrical assets by safely diverting surge energy before it reaches connected equipment.

The Mersen Surge-Trap® STPT23 Series is engineered for modern industrial installations, offering high surge capacity, compact dimensions and easy maintenance. The remote indication contact allows maintenance teams to monitor protection status without opening electrical enclosures.

Typical Applications

  • Industrial automation systems.
  • Electrical distribution boards.
  • Control panels and switchgear.
  • Variable speed drives and motor control centres.
  • PLC and process control equipment.
  • OEM machinery and commercial electrical installations.

Technical Specifications

Voltage 400 V
Phase Single Phase
Manufacturer Mersen
Series Surge-Trap® Pluggable STPT23
Model STPT23-20K440V-1PM
SKU 83230105
Product type Type 2+3 Surge Protection Device
SPD classification IEC Type 2+3 / Class II + III
Nominal operating voltage (Un) 400 V AC
Maximum continuous operating voltage (Uc) 440 V AC
Maximum discharge current (Imax) 20 kA (8/20 μs)
Nominal discharge current (In) 10 kA (8/20 μs)
Combined voltage pulse (Uoc) 10 kV
Number of poles 1 pole
Connection Line to Neutral (L-N)
Remote indication Yes
Mounting type DIN rail
Protection rating IP20
Poles 1-pole
Device Type Surge protection device
SPD Type Type 2+3
Nominal Discharge Current (In) 10 kA
Remote Signal Yes

Frequently Asked Questions

What is the Mersen 83230105 used for?

It protects low-voltage electrical installations and sensitive electronic equipment from damaging transient overvoltages.

What type of surge protection device is this?

The 83230105 is a Type 2+3 / Class II + III surge protection device suitable for final-stage protection of electrical equipment.

Does this model include remote indication?

Yes. The integrated remote indication contact allows the protection status to be monitored remotely from building or automation systems.

What voltage systems is it designed for?

The device is designed for 400 V AC systems with a maximum continuous operating voltage of 440 V AC.

Where is this SPD typically installed?

It is normally installed on a DIN rail inside electrical switchboards, industrial control panels and OEM equipment enclosures.

Trusted by Electrical Professionals Worldwide

Mersen Surge-Trap® surge protection devices are trusted by panel builders, automation engineers and maintenance professionals to provide reliable protection for critical industrial and commercial electrical systems.

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