GLCMB0125T4E110 Lovato 4 Pole 125A 690V Motorised Changeover Switch

GLCMB0125T4E110 Lovato 4 Pole 125A 690V Motorised Changeover Switch

Lovato GLCMB0125T4E110 motorised four-pole changeover switch with a 125 A current rating and 110–125 V AC/DC motor operator for automatic power transfer applications.

SKU: GLCMB0125T4E110MPN: GLCMB0125T4E110
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Why Choose the Lovato GLCMB0125T4E110 Motorised Changeover Switch?

The Lovato GLCMB0125T4E110 is a robust and dependable motorised four-pole changeover switch designed to transfer electrical loads between two independent power sources in commercial, industrial and critical power installations. As part of the trusted Lovato GLCM motorised changeover switch series, it provides reliable source selection for automatic transfer panels, generator systems and low-voltage electrical distribution networks.

Featuring an integrated 110–125 V AC/DC motor operator, this changeover switch supports remote operation through automatic transfer controllers, PLCs and compatible power management equipment. Its motorised mechanism reduces the need for manual switching, improves operational safety and helps maintain continuity of supply when transferring between primary and alternative power sources.

With a conventional free-air thermal current rating of 125 A, a four-pole switching configuration and suitability for electrical systems up to 690 V AC, the GLCMB0125T4E110 is ideal for installations where all three phases and the neutral conductor must be switched. Its durable construction and conformity with recognised IEC, EN and BS standards make it a reliable choice for professionally engineered power systems.

Key Advantages

  • Motorised four-pole changeover switch for automatic source transfer.
  • 125 A conventional thermal current rating for commercial and industrial installations.
  • Four-pole switching configuration for switching three phases and neutral.
  • 110–125 V AC/DC motor operating voltage for flexible control integration.
  • Supports remote operation through PLCs, ATS controllers and power management systems.
  • Provides dependable switching between mains, generator and alternative power supplies.

Key Features

  • Lovato GLCM motorised changeover switch series.
  • 125 A IEC conventional free-air thermal current.
  • Four-pole power switching configuration.
  • 110–125 V AC/DC rated motor operating voltage.
  • Motor operating voltage range of approximately 77–165 V AC/DC.
  • 1000 V rated insulation voltage.
  • 12 kV rated impulse withstand voltage.
  • Compliant with IEC/EN/BS 60947-3 and IEC/EN/BS 60947-6-1.

Reliable Automatic Power-Source Transfer

Motorised changeover switches transfer electrical loads between two separate power sources, such as a mains supply and a standby generator. Automated operation helps reduce supply interruptions, minimises manual intervention and allows electrical distribution systems to respond efficiently when the preferred power source becomes unavailable.

The four-pole configuration of the GLCMB0125T4E110 switches all three phase conductors together with the neutral conductor. This makes it particularly suitable for installations where complete separation between power sources is required, including generator systems, commercial buildings and critical power distribution networks.

Typical Applications

  • Automatic transfer switch (ATS) systems.
  • Mains to generator changeover panels.
  • Commercial and industrial electrical switchboards.
  • Emergency and standby power installations.
  • Critical infrastructure and building services.
  • OEM electrical control and power distribution panels.

Technical Specifications

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Power 55 kW
Operation Motorised
Mounting Type Base mounting
Device Type Motorised changeover switch
Current 125 A
Voltage 690 V
Phase Three Phase
IP Rating IP00
Poles 4-pole
Manufacturer Lovato Electric
Series GLCM Motorised Changeover Switches
Model GLCMB0125T4E110
Product type Motorised changeover switch
Number of poles 4
Conventional thermal current (Ith) 125 A
Maximum operating voltage 690 V AC
Motor operating voltage 110–125 V AC/DC
Motor operating voltage range 77–165 V AC/DC
Rated insulation voltage (Ui) 1000 V
Rated impulse withstand voltage (Uimp) 12 kV
Rated operational power (AC-23A, 400 V) 55 kW
Rated operational power (AC-23A, 690 V) 110 kW
Conditional short-circuit current 100 kA
Protection rating IP00
Operating temperature -25 to +55 °C
Maximum operating altitude 3000 m
Mounting type Screw mounting
Package dimensions approx. 371 × 253 × 220 mm
Weight approx. 8.2 kg
EAN 8013975326718
HS Code 85365080

Frequently Asked Questions

What is the Lovato GLCMB0125T4E110 used for?

This motorised changeover switch transfers electrical loads between two independent power sources, such as a mains supply and a standby generator.

What current rating does this changeover switch support?

The GLCMB0125T4E110 has a conventional free-air thermal current rating of 125 A.

What motor supply voltage is required?

The integrated motor operator is designed for a 110–125 V AC/DC control supply.

Why does the GLCMB0125T4E110 have four poles?

The four-pole configuration switches all three phase conductors and the neutral, making it suitable for installations where complete source separation is required.

Which standards does this changeover switch comply with?

The GLCMB0125T4E110 complies with IEC/EN/BS 60947-3 and IEC/EN/BS 60947-6-1 for low-voltage switching and transfer switching equipment.

Trusted for Critical Power Switching

Lovato motorised changeover switches are trusted by electrical engineers, switchboard manufacturers and industrial system integrators to provide reliable automatic power transfer in commercial and industrial electrical installations.