Lovato GLC0320C1 IEC/EN three-pole changeover switch 320A

Why Choose the GLC0320C1?

Engineered by Lovato, the GLC0320C1 is a rugged three-pole changeover switch for dependable AC source switching. With an IEC conventional free air thermal current Ith of 320 A and screw-on plate installation, it integrates smoothly in control and distribution panels. The GLC series device meets IEC/EN 60947 requirements, delivering assured performance where reliable changeover is critical.

Rated Ui 1000 V and Uimp 12 kV, this switch offers high making/breaking capacity at AC23A 400 V (3200 A/2560 A). It supports operational power up to 160 kW at 400 V and 315 kW at 690 V, with conditional short-circuit current 80 kA and gG/355 fuse protection. Mechanical life is 10,000 cycles; terminals tighten to 30 to 37 Nm. Operating range -25 to +55 °C, up to 3000 m altitude.

Key Benefits

• Three-pole AC changeover with 320 A IEC Ith rating.
• High power performance: 160 kW at 400 V AC23A.
• Strong insulation and impulse withstand: Ui 1000 V, Uimp 12 kV.
• Robust making/breaking at 400 V: 3200 A / 2560 A.
• Conditional short-circuit current 80 kA with gG/355 fuse.
• Wide operating temperature -25 to +55 °C, up to 3000 m.
• Screw-on plate mounting simplifies secure panel integration.

Technical Specification

• Product type designation: GLC
• Number of poles: 3
• Operating voltage type: AC
• Ith (IEC): 320 A
• Rated insulation voltage Ui (IEC/EN): 1000 V
• Rated impulse withstand voltage Uimp: 12 kV
• Power dissipation per pole (max): 20.8 W
• Rated operational power AC23A 400 V: 160 kW
• Rated operational power AC23A 690 V: 315 kW
• Conditional short-circuit current (rms): 80 kA
• Short-circuit protection fuse: gG/355
• Making capacity AC23A 400 V: 3200 A
• Breaking capacity AC23A 400 V: 2560 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 GLC0320C1 three-pole changeover switch
• Basic installation and safety information

Applications

• Mains-to-generator source changeover in LV panels
• Industrial and commercial power distribution boards
• AC23A duty switching of mixed and resistive loads
• Control and switchgear assemblies requiring dependable source transfer

Safety note: Install and commission only by qualified personnel. Follow IEC/EN 60947 requirements, apply the specified terminal torque (30 to 37 Nm), and protect with the recommended gG/355 fuse for safe operation.