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Mersen Surge Protector Type 2+3 SPD 3 Pole 400/480 Volt 10KA TNC

Mersen Surge Protector Type 2+3 SPD 3 Pole 400/480 Volt 10KA TNC

Mersen 83230122 STPT23-20K320V-3P Type 2+3 surge protection device with 20 kA discharge capacity, 320 V AC continuous operating voltage and 3+0 TNC three-phase configuration.

SKU: 83230122Alt SKU: STPT23-20K320V-3PMPN: 83230122
Price
List Price £89.02 ex VAT
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£89.02
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Manufacturer Lead Time

£89.02

Why Choose the Mersen 83230122 Surge Protection Device?

The Mersen 83230122 is a robust 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 SPD is suitable for commercial, industrial and automation systems requiring dependable surge protection.

This pluggable surge protection device is designed for three-phase power systems and provides effective protection against voltage spikes caused by lightning activity, switching operations and electrical disturbances. Its modular construction allows fast replacement, helping reduce maintenance time and improve installation reliability.

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 83230122 is ideal for distribution boards, control panels and industrial equipment protection.

Key Advantages

  • High performance Type 2+3 surge protection device.
  • 20 kA maximum discharge current for reliable transient overvoltage protection.
  • 320 V AC continuous operating voltage for three-phase electrical installations.
  • Pluggable modular design for simple maintenance and replacement.
  • Suitable for 3+0 TNC systems.
  • Helps protect control panels, distribution boards and sensitive electrical equipment.

Key Features

  • Mersen Surge-Trap® Pluggable STPT23 Series.
  • Catalogue number: STPT23-20K320V-3P.
  • Type 2+3 / Class II+III surge protection device.
  • 20 kA Imax (8/20 μs).
  • 320 V AC continuous operating voltage (Uc).
  • Three-pole configuration.
  • 3+0 TNC network arrangement.
  • Compact 3 module pluggable format.

Reliable Protection Against Transient Overvoltages

Surge protection devices help divert damaging voltage spikes away from connected electrical equipment before they can cause faults, downtime or premature component failure. They are a vital part of protecting modern electrical installations with sensitive automation and control equipment.

The Mersen STPT23 range is designed for use as a final stage of protection close to the equipment being protected, making it well suited for industrial panels, building services and machinery control systems.

Typical Applications

  • Industrial control panels.
  • Electrical distribution boards.
  • Automation and machinery systems.
  • Commercial electrical installations.
  • PLC, drive and instrumentation protection.
  • Three-phase TNC power systems.

Technical Specifications

Voltage 480 V
Phase Three Phase
Manufacturer Mersen
Series Surge-Trap® Pluggable STPT23 Series
Model STPT23-20K320V-3P
SKU 83230122
Product type Surge Protection Device (SPD)
SPD classification Type 2+3 / Class II+III
Maximum discharge current (Imax) 20 kA (8/20 μs)
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
Standard EN/IEC 61643-11
RoHS compliant Yes
EAN/UPC 8435297850908
HS Code 85363090
Country of Manufacture Spain
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 No

Frequently Asked Questions

What is the Mersen 83230122 used for?

It is used to protect low voltage electrical installations and connected equipment from transient overvoltages caused by lightning activity and switching events.

What type of SPD is the Mersen 83230122?

The Mersen 83230122 is a Type 2+3 / Class II+III surge protection device.

What is the discharge rating of this SPD?

This device has a maximum discharge current of 20 kA (8/20 μs).

What system configuration is this surge protector designed for?

It is designed for 3+0 TNC three-phase systems.

Is the Mersen 83230122 pluggable?

Yes. The device has a pluggable modular format, allowing fast replacement during maintenance.

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.

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