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Mersen Surge Protector Type 2 SPD 4 Pole 120/208 Volt 20KA TNS Remote Indication

Mersen Surge Protector Type 2 SPD 4 Pole 120/208 Volt 20KA TNS Remote Indication

Mersen 83020151 STPT2-40K150V-4PM Type 2 surge protection device with 40 kA maximum discharge current, 20 kA nominal discharge current, 150 V AC Uc, 120/208 V AC operation, 4+0 TNS configuration, four-pole pluggable DIN rail construction and remote indication.

SKU: 83020151Alt SKU: STPT2-40K150V-4PMMPN: 83020151
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List Price £171.36 ex VAT
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Why Choose the Mersen 83020151 Surge Protection Device?

The Mersen 83020151 STPT2-40K150V-4PM is a reliable Type 2 surge protection device (SPD) designed to protect low-voltage electrical installations from transient overvoltages caused by switching events and indirect lightning activity. As part of the Mersen Surge-Trap® Pluggable STPT2 Series, it provides dependable protection for commercial, industrial and infrastructure power distribution systems.

This pluggable surge protection device is designed for easy installation, quick cartridge replacement and long-term protection of sensitive electrical equipment. The remote indication feature enables the SPD status to be monitored from external systems, helping maintenance teams respond quickly when replacement is required.

With a 40 kA maximum discharge current, 150 V AC maximum continuous operating voltage and 4+0 TNS configuration, the Mersen 83020151 is suitable for 120/208 V AC three-phase plus neutral systems. Its four-pole, four-module DIN rail format makes it ideal for installation inside distribution boards and industrial control panels.

Key Advantages

  • Reliable Type 2 surge protection device for low-voltage electrical installations.
  • 40 kA maximum discharge current for effective surge protection.
  • Designed for 120/208 V AC three-phase plus neutral systems.
  • 4+0 TNS configuration suitable for TNS earthing arrangements.
  • Pluggable construction allows quick replacement of protection cartridges.
  • Remote indication supports monitored electrical distribution systems.

Key Features

  • Mersen Surge-Trap® Pluggable STPT2 Series.
  • Type 2 / Class II surge protection.
  • 40 kA Imax (8/20 μs) maximum discharge current.
  • 20 kA In (8/20 μs) nominal discharge current.
  • 120/208 V AC nominal operating voltage.
  • 150 V AC Uc maximum continuous operating voltage.
  • 3Ph+N electrical system configuration.
  • 4+0 TNS protection arrangement.
  • Four-pole, four-module pluggable construction.
  • Remote indication for status monitoring.

Reliable Surge Protection for Electrical Distribution

Type 2 surge protection devices are installed in distribution boards and control panels to limit transient overvoltages before they reach sensitive connected equipment. They help protect automation controls, power supplies, monitoring equipment, drives and building electrical systems from damaging voltage spikes.

The Mersen STPT2-40K150V-4PM combines strong surge discharge capability with practical pluggable construction and remote indication, making it a dependable choice for electrical contractors, panel builders and maintenance engineers working on monitored commercial and industrial installations.

Typical Applications

  • Three-phase electrical distribution boards.
  • Commercial building power systems.
  • Industrial control panels.
  • Manufacturing and automation equipment.
  • Building services and infrastructure installations.
  • Panel building and electrical protection upgrades.

Technical Specifications

Voltage 208 V
Phase Three Phase
Manufacturer Mersen
Series Surge-Trap® Pluggable STPT2 Series - 40kA
Model STPT2-40K150V-4PM
Part number 83020151
Product type Type 2 surge protection device
SPD Type Type 2 / Class II
Maximum discharge current (Imax) 40 kA
Nominal Discharge Current (In) 20 kA
Waveform 8/20 μs
Nominal operating voltage 120 / 208 V AC
Maximum continuous operating voltage (Uc) 150 V AC
Electrical system 3-phase + neutral
Configuration TN-S
Number of poles 4
Module width 4 modules
Format Pluggable
Mounting type DIN rail
Remote indication Yes
Protection rating IP20
Replacement plug L-N SP2-40K150V
Standards IEC 61643-11, EN 61643-11, UL 1449
HS Code 85363090
Country of Manufacture Spain
Poles 4-pole
Device Type Surge protection device
SPD Type Type 2
Earthing System TN-S
Nominal Discharge Current (In) 20 kA
Remote Signal Yes

Frequently Asked Questions

What is the Mersen 83020151 used for?

The Mersen 83020151 is used to protect low-voltage electrical installations from transient overvoltages caused by switching events and indirect lightning activity.

What type of surge protection device is it?

It is a Type 2 / Class II surge protection device designed for installation in electrical distribution boards and control panels.

What is the maximum discharge current?

The device has a maximum discharge current of 40 kA with an 8/20 μs surge waveform.

What electrical system is this SPD suitable for?

The Mersen 83020151 is suitable for 120/208 V AC three-phase plus neutral TNS systems using a 4+0 configuration.

Does the Mersen 83020151 include remote indication?

Yes. The STPT2-40K150V-4PM includes remote indication, allowing the SPD status to be monitored from external systems or control equipment.

Trusted for Electrical Protection Worldwide

Mersen Surge-Trap® surge protection devices are trusted by electrical contractors, panel builders and industrial engineers to help protect critical power distribution systems from damaging transient overvoltages.

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