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Mersen Surge Protector Type 2 SPD 3 Pole 690/1000 Volt 15KA TNC

Mersen Surge Protector Type 2 SPD 3 Pole 690/1000 Volt 15KA TNC

Mersen STPT2-30K750V-3P Type 2 surge protection device with 30 kA Imax, 690 V IT / 690-1000 V TNC nominal voltage, 750 V AC maximum continuous operating voltage and pluggable DIN rail construction.

SKU: 83020102Alt SKU: STPT2-30K750V-3PMPN: 83020102
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List Price £134.62 ex VAT
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Manufacturer Lead Time

£134.62

Why Choose the Mersen STPT2-30K750V-3P Surge Protection Device?

The Mersen STPT2-30K750V-3P (Part Number 83020102) is a robust Type 2 surge protection device (SPD) engineered to safeguard three-phase low-voltage electrical installations from transient overvoltages caused by lightning activity and switching events. As part of the Mersen Surge-Trap® Pluggable STPT2 Series, it provides dependable surge protection for demanding industrial and commercial electrical systems.

Designed with a 30 kA maximum discharge current (Imax), 750 V AC maximum continuous operating voltage (Uc) and a pluggable modular format, this surge protection device offers reliable protection while allowing rapid cartridge replacement during maintenance. Its compact DIN rail design simplifies installation within switchboards and control panels.

Suitable for 690 V IT and 690/1000 V TNC three-phase systems with a 3+0 configuration, the STPT2-30K750V-3P is ideal for protecting industrial automation equipment, heavy-duty machinery, renewable energy installations and critical electrical infrastructure.

Key Advantages

  • Reliable Type 2 surge protection device for high-voltage three-phase installations.
  • 30 kA maximum discharge current for effective transient overvoltage protection.
  • 750 V AC maximum continuous operating voltage.
  • Pluggable cartridge design simplifies servicing and maintenance.
  • Compact 3-pole DIN rail mounting format.
  • Suitable for IT and TNC network configurations.

Key Features

  • Mersen Surge-Trap® Pluggable STPT2 Series.
  • Type 2 / Class II surge protection device.
  • 30 kA Imax maximum discharge current (8/20 μs).
  • 15 kA nominal discharge current (In).
  • 690 V IT / 690-1000 V TNC nominal operating voltage.
  • 750 V AC maximum continuous operating voltage (Uc).
  • Three-phase, 3+0 TNC configuration.
  • 3-pole, 3-module pluggable construction.
  • Visual end-of-life indication.
  • DIN rail mounting.

Reliable Surge Protection for High-Voltage Three-Phase Installations

Type 2 surge protection devices help protect electrical installations against transient overvoltages before they reach valuable connected equipment. This improves operational reliability, reduces unplanned downtime and extends the service life of electrical assets.

The Mersen Surge-Trap® STPT2 Series combines dependable surge protection with pluggable replaceable cartridges and compact DIN rail installation, making it ideal for industrial switchboards and high-voltage distribution systems.

Typical Applications

  • Industrial automation systems.
  • High-voltage three-phase distribution boards.
  • Machine control panels.
  • Renewable energy installations.
  • Water treatment facilities.
  • Mining and heavy industry.
  • Critical infrastructure electrical systems.
  • 690 V IT and 690/1000 V TNC installations.

Technical Specifications

Voltage 000 V
Phase Three Phase
Manufacturer Mersen
Series Surge-Trap® Pluggable STPT2 Series
Model STPT2-30K750V-3P
Item number 83020102
Product type Type 2 Surge Protection Device
SPD Type Type 2 / Class II
Maximum discharge current (Imax) 30 kA (8/20 μs)
Nominal Discharge Current (In) 15 kA (8/20 μs)
Nominal operating voltage 690 V IT / 690-1000 V TNC
Maximum continuous operating voltage (Uc) 750 V AC
System configuration TN-C
Number of poles 3
Module width 3 modules
Format Pluggable
Mounting type DIN rail
Short circuit withstand 25 kA
Maximum back-up fuse 80 A gG
Protection rating IP20
RoHS compliant Yes
EAN / UPC 8435297850946
HS Code 85363090
Country of Manufacture Spain
Poles 3-pole
Device Type Surge protection device
SPD Type Type 2
Earthing System TN-C
Nominal Discharge Current (In) 15 kA
Remote Signal No

Frequently Asked Questions

What is the Mersen STPT2-30K750V-3P used for?

It protects three-phase electrical installations from transient overvoltages caused by lightning strikes and electrical switching events.

What type of surge protection device is this?

The STPT2-30K750V-3P is a Type 2 / Class II surge protection device for industrial and commercial electrical distribution systems.

What is the maximum surge current rating?

The device provides a 30 kA maximum discharge current (Imax) with a nominal discharge current of 15 kA.

Which electrical systems is this model designed for?

It is designed for 690 V IT and 690/1000 V TNC three-phase electrical systems.

How is this surge protection device installed?

The device mounts directly onto a DIN rail and features pluggable replaceable cartridges for simplified maintenance.

Trusted by Electrical Professionals Worldwide

Mersen Surge-Trap® surge protection devices are trusted by electrical engineers, panel builders and maintenance professionals to protect critical industrial electrical installations against damaging transient overvoltages.

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