GA125C - 3P SWITCH 125A-DOOR MOUNTING

Why Choose the GA125C?

The Lovato GA125C is a robust three-pole switch disconnector for door-mounted installations, delivering reliable AC isolation at 125 A. With a rated insulation voltage Ui of 1000 V and impulse withstand Uimp of 8 kV, it provides dependable performance in industrial panels. Designed to IEC/EN 60947-3 and UL98, the GA125C supports safe, straightforward isolation and switching in demanding applications.

Rated for AC-21/22/23 duties, it achieves Ie up to 125 A at 400 V and 47 A at 690 V, with 55 kW (400 V) and 45 kW (690 V) AC-23A power. IP20 frontal protection, 50 kA conditional short-circuit (with gG125 fuse), and 30,000 mechanical/electrical cycles enhance reliability. Accommodates 4–70 mm² conductors with 5–6 Nm torque. Operates from -25 to +55 °C and up to 3000 m altitude.

Key Benefits

• Door-mount design simplifies integration into panel doors.
• 125 A IEC Ith ensures dependable AC isolation and switching.
• High insulation ratings: Ui 1000 V and Uimp 8 kV.
• 50 kA conditional short-circuit withstand with gG125 fuse.
• Long endurance with 30,000 mechanical and electrical cycles.
• Wide conductor range 4–70 mm² and 5–6 Nm tightening torque.
• IP20 frontal protection enhances operator safety at the panel.
• Conforms to IEC/EN 60947-3/60947-1, UL98 and CSA C22.2 n°4.

Technical Specification

• Product type designation: GA
• Number of poles: 3
• Operating voltage type: AC
• Ith (IEC): 125 A
• Rated insulation voltage Ui (IEC/EN): 1000 V
• Rated impulse withstand voltage Uimp: 8 kV
• Operating current Ie AC21A 400 V: 125 A
• Operating current Ie AC21A 500 V: 125 A
• Operating current Ie AC21A 690 V: 125 A
• Operating current Ie AC22A 400 V: 125 A
• Operating current Ie AC22A 500 V: 100 A
• Operating current Ie AC22A 690 V: 47 A
• Operating current Ie AC23A 400 V: 125 A
• Operating current Ie AC23A 500 V: 100 A
• Operating current Ie AC23A 690 V: 47 A
• Power dissipation per pole (max): 6.3 W
• Rated operational power AC23A 400 V: 55 kW
• Rated operational power AC23A 690 V: 45 kW
• Conditional short-circuit current (rms): 50 kA
• Short-circuit protection fuse: gG125
• Making capacity AC23A 400 V: 1250 A
• Breaking capacity AC23A 400 V: 1000 A
• Mechanical life: 30000 cycles
• Electrical life AC21A: 30000 cycles
• Terminal tightening torque: 5 to 6 Nm
• Conductor section (IEC): 4 to 70 mm²
• Operating temperature: -25 to +55 °C
• Storage temperature: -40 to +70 °C
• Max altitude: 3000 m
• IP degree (frontal): IP20
• Pollution degree: 3

What’s Included

• Lovato GA125C switch disconnector (door-mount version)
• Installation instructions

Applications

• Main isolation in industrial control panels and switchboards
• Switching and isolation of motor loads within AC-23A ratings
• Isolation of resistive and mixed loads in distribution circuits
• Machinery maintenance isolation and safety shutdown procedures
• Panel door-mounted isolator for OEM and retrofit projects

Safety note: Install and commission only by qualified personnel. De-energise circuits before work, protect with the specified gG125 fuse, and observe IEC/EN 60947 requirements and local regulations. Operate within stated ratings and environmental limits.