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Mersen Surge Protector Type 2+3 SPD 3 Pole 208 Volt 10KA TNC

Mersen Surge Protector Type 2+3 SPD 3 Pole 208 Volt 10KA TNC

Mersen 83230118 STPT23-20K150V-3P Type 2+3 pluggable surge protection device with 20 kA maximum discharge current and 150 V AC maximum continuous operating voltage for 208 V AC three-phase TNC systems.

SKU: 83230118Alt SKU: STPT23-20K150V-3PMPN: 83230118
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List Price £90.80 ex VAT
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Why Choose the Mersen 83230118 Surge Protection Device?

The Mersen 83230118 is a compact and reliable Type 2+3 surge protection device (SPD) designed to protect low-voltage electrical installations from transient overvoltages caused by lightning activity and electrical switching events. Part of the Mersen Surge-Trap® Pluggable STPT23 Series, it provides dependable fine surge protection for industrial, commercial and OEM electrical systems.

This 3-pole pluggable SPD is designed for 208 V AC three-phase TNC systems using a 3+0 configuration. Its modular construction allows rapid cartridge replacement, helping reduce maintenance time while maintaining reliable protection for electrical panels and sensitive equipment.

With a 20 kA maximum discharge current (Imax), 10 kA nominal discharge current (In) and a 150 V AC maximum continuous operating voltage (Uc), the Mersen 83230118 is suitable for protecting PLCs, drives, control panels, power supplies, instrumentation and automation equipment connected to 208 V AC systems.

Key Advantages

  • Compact Type 2+3 surge protection device for low-voltage installations.
  • 20 kA maximum discharge current for dependable transient overvoltage protection.
  • 3-pole 3+0 TNC configuration for three-phase systems.
  • 150 V AC maximum continuous operating voltage.
  • Pluggable 3-module design supports fast replacement and maintenance.
  • Suitable for industrial 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).
  • 150 V AC maximum continuous operating voltage.
  • 208 V AC nominal operating voltage.
  • 3-pole 3+0 TNC configuration.
  • DIN rail mounted pluggable construction.

Reliable Protection for 208 V Three-Phase Systems

Surge protection devices help prevent transient overvoltages from reaching sensitive electrical equipment by safely diverting surge energy away from connected loads. This helps reduce the risk of equipment damage, nuisance faults, data loss and unplanned downtime.

The Mersen 83230118 is designed for panel-mounted surge protection in three-phase electrical installations. Its pluggable construction makes inspection and replacement straightforward, supporting efficient maintenance in industrial and commercial environments.

Typical Applications

  • Industrial control panels.
  • Commercial electrical distribution boards.
  • 208 V AC three-phase TNC electrical systems.
  • PLC and automation equipment.
  • Variable speed drives and motor control centres.
  • OEM machinery and panel building applications.

Technical Specifications

Voltage 208 V
Phase Three Phase
Manufacturer Mersen
Series Surge-Trap® Pluggable STPT23 Series
Model STPT23-20K150V-3P
SKU 83230118
Product type Surge Protection Device
SPD classification Type 2+3 / Class II + III
Nominal operating voltage 208 V AC
Maximum continuous operating voltage 150 V AC
Configuration 3+0 TNC
Number of poles 3 poles
Format Pluggable, 3 modules
Maximum discharge current (Imax) 20 kA (8/20 μs)
Nominal discharge current (In) 10 kA (8/20 μs)
Combined voltage pulse (Uoc) 10 kV
Mounting type DIN rail
RoHS compliant Yes
HS Code 85363090
Country of Manufacture Spain
Poles 3-pole
Device Type Surge protection device
SPD Type Type 2+3
Nominal Discharge Current (In) 10 kA
Earthing System TN-C

Frequently Asked Questions

What is the Mersen 83230118 used for?

The Mersen 83230118 is used to protect low-voltage electrical systems and sensitive electronic equipment from transient overvoltages.

What type of SPD is the 83230118?

It is a Type 2+3 / Class II + III surge protection device from the Mersen Surge-Trap® Pluggable STPT23 Series.

What electrical system is this SPD designed for?

It is designed for 208 V AC three-phase TNC systems using a 3+0 configuration.

What is the maximum discharge current?

The device has a 20 kA maximum discharge current (Imax) using an 8/20 μs surge waveform.

Where is this surge protection device installed?

It is designed for DIN rail installation inside electrical panels, distribution boards, switchboards 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 critical power distribution and automation equipment from damaging transient overvoltages.

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