Lovato GLC0400T4C1UL UL1008 four-pole changeover switch 400A

Why Choose the GLC0400T4C1UL?

The Lovato GLC0400T4C1UL is a four-pole changeover switch engineered for dependable AC power transfer. UL1008 compliant with an IEC Ith of 400 A, it delivers robust performance with Ui 1000 V and Uimp 12 kV. AC23A ratings reach 200 kW at 400 V and 400 kW at 690 V. Screw-on plate installation and conformity to IEC/EN 60947-3, -6-1 and -1 streamline panel integration.

Built for demanding switchboard duties, this four-pole device offers an 80 kA conditional short-circuit current with J/400 fuse protection and a mechanical life of 10,000 cycles. Operating from -25 to +55 °C and up to 3000 m altitude, it supports reliable source changeover in industrial and commercial panels, helping maintain continuity during maintenance, supply transfers and service bypass operations.

Key Benefits

• UL1008 compliant for dependable transfer switching in demanding applications
• 400 A IEC Ith accommodates high-capacity AC changeover duties
• Four-pole configuration provides comprehensive switching across multiple conductors
• High insulation ratings: Ui 1000 V and Uimp 12 kV
• Strong AC23A ratings: 200 kW at 400 V, 400 kW at 690 V
• Conditional short-circuit current 80 kA with J/400 fuse coordination
• Wide operating range: -25 to +55 °C, up to 3000 m altitude

Technical Specification

• Number of poles: 4
• Operating voltage type: AC
• Ith (IEC): 400 A
• Rated insulation voltage Ui (IEC/EN): 1000 V
• Rated impulse withstand voltage Uimp: 12 kV
• Power dissipation per pole (max): 26.0 W
• Rated operational power AC23A 400 V: 200 kW
• Rated operational power AC23A 690 V: 400 kW
• Conditional short-circuit current (rms): 80 kA
• Short-circuit protection fuse: J/400
• Making capacity AC23A 400 V: 4000 A
• Breaking capacity AC23A 400 V: 3200 A
• Mechanical life: 10000 cycles
• Terminal tightening torque: 30 to 37 Nm
• Operating temperature: -25 to +55 °C
• Storage temperature: -40 to +70 °C
• Max altitude: 3000 m

What’s Included

• Lovato GLC0400T4C1UL four-pole changeover switch
• Manufacturer technical documentation
• Basic installation and safety guidelines

Applications

• Dual-supply changeover in industrial and commercial switchboards
• Load transfer in AC power distribution panels
• Maintenance bypass and service continuity arrangements
• Process and building services power management

Safety note: Install and commission only by qualified personnel. Isolate all supplies before work, use the specified short-circuit protection (J/400), tighten terminals to the stated torque, and operate within the published ratings.