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GLCMB0125T4A230 Lovato 4 Pole 125A 690V Motorised Changeover Switch

MPN: GLCMB0125T4A230

Special Price £1,172.33 £976.94 Regular Price £1,465.42

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Why Choose the Lovato GLCMB0125T4A230 4-Pole 125A 690V Motorised Changeover Switch?

The Lovato GLCMB0125T4A230 is a motorised 4-pole changeover switch rated for 125 A at 690 V AC, ideal for fully isolating all phases and neutral in dual-supply systems. Featuring a 208–277 V AC motor actuator, it enables safe and automated switching between power sources with a central OFF position. Designed to meet IEC 60947-6-1 and IEC 60947-3 standards, this robust switch is suited to generator backup panels, ATS systems, and critical infrastructure applications.

Technical Specifications

  • Product Code: GLCMB0125T4A230
  • Poles: 4 (3 phases + neutral)
  • Rated Current (Ith): 125 A
  • Rated Operational Voltage (Ue): 690 V AC
  • Motor Control Voltage: 208–277 V AC
  • Switching Positions: I – 0 – II
  • Conformity: IEC 60947-6-1, IEC 60947-3
  • Mounting: Base or panel mounting

Key Features

  • 4-pole isolation ensures safe switching of all live conductors including neutral
  • Motorised actuator enables automated control via high-voltage logic inputs
  • I – 0 – II switching allows reliable changeover with clear OFF position
  • Compact form factor ideal for ATS panels or tight enclosure layouts
  • Visible contact position via transparent window for enhanced safety
  • Padlockable in all three positions for secure maintenance

Compatibility & Accessories

Fully compatible with Lovato’s GLC series accessories, including door-interlocked handles, auxiliary contacts, terminal covers, and IP-rated enclosures (IP66, IP69K, NEMA 4X). Can be driven by Lovato ATL-series ATS controllers or third-party PLC/relay logic.

Frequently Asked Questions

Trusted by Customers Worldwide

"We rely on the GLCMB0125T4A230 in our switchgear for safe generator changeover and full phase isolation — always dependable." – Industrial Controls Supervisor

This model supports up to 125 A (conventional thermal current), ideal for medium-duty distribution and ATS systems.

A 208–277 V AC motor actuator allows automated I–0–II switching via ATS controllers, PLC logic, or relay systems.

Designed to meet IEC 60947-6-1 (changeover switch) and IEC 60947-3 (switch-disconnector) specifications.

The motor actuator operates on 208–277 V AC, compatible with most industrial high-voltage control systems.

The switch itself is not IP rated, but is intended for installation within IP-rated enclosures for full protection.

Ideal for generator changeover panels, dual-mains ATS systems, and automated electrical switching requiring full 4-pole isolation.

More Information
Manufacturer Part Number GLCMB0125T4A230
Manufacturer Lovato
Barcode 8013975326763
Number of Poles 4 pole
Conditioned rated short-circuit current Iq 100kA
Rated operation power at AC-23, 400 V 55kW
Rated permanent current at AC-21, 400 V 125A
Switching power at 400 V 1000kW
Rated permanent current at AC-23, 400 V 125A
Voltage 690V
Maximum Continuous Voltage 690V
Degree of protection (IP) IP00
Amperage 125A
Type of electric connection Screw connection
Packed Quantity 1
Height 141mm
Width 314mm
Depth 191mm
Colour Black
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