Lovato GLC0500T4C1 IEC/EN four-pole changeover switch 500A

Why Choose the GLC0500T4C1?

The Lovato GLC0500T4C1 changeover switch delivers dependable AC transfer for demanding installations. This four‑pole, IEC/EN conforming device provides an Ith of 500 A and installs securely via screw‑on plate mounting. Rated insulation voltage is 1000 V with 12 kV impulse withstand, ensuring robust isolation and performance across industrial control and power distribution applications.

Engineered for heavy-duty switching, it achieves AC-23A operational power of 250 kW at 400 V and 500 kW at 690 V. With 80 kA conditional short-circuit current and gG/500 fuse protection, it offers 5000 A making and 4000 A breaking at 400 V. Mechanical life is 10,000 cycles, with 30–37 Nm terminal torque and an operating range from -25 to +55 °C up to 3000 m altitude.

Key Benefits

• Four-pole AC changeover for reliable mains transfer and load switching.
• High 500 A Ith rating for demanding industrial circuits.
• Robust insulation: Ui 1000 V and 12 kV impulse withstand.
• Strong AC-23A performance: 250 kW at 400 V, 500 kW at 690 V.
• Enhanced fault resilience with 80 kA conditional short-circuit rating.
• Secure installation using screw-on plate mounting.
• Durable design with 10,000 mechanical cycles and 30–37 Nm terminals.

Technical Specification

• Product type designation: GLC
• Number of poles: 4
• Operating voltage type: AC
• Ith (IEC): 500 A
• Rated insulation voltage Ui (IEC/EN): 1000 V
• Rated impulse withstand voltage Uimp: 12 kV
• Power dissipation per pole (max): 32.5 W
• Rated operational power AC23A 400 V: 250 kW
• Rated operational power AC23A 690 V: 500 kW
• Conditional short-circuit current (rms): 80 kA
• Short-circuit protection fuse: gG/500
• Making capacity AC23A 400 V: 5000 A
• Breaking capacity AC23A 400 V: 4000 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 GLC0500T4C1 changeover switch unit
• Manufacturer product datasheet (downloadable)
• Mounting and safety instructions
• Protective packaging

Applications

• Mains and generator changeover for critical loads
• Industrial control panels and switchboards
• Power distribution and transfer switching
• Motor control centres and process equipment
• Renewable and backup power systems requiring AC changeover

Safety note: Installation and commissioning must be performed by qualified personnel. Always isolate power, use the specified gG/500 fuse, tighten terminals to 30–37 Nm, and operate within the stated temperature and altitude limits.