Lovato GL0400C1UL UL98 three-pole switch disconnector 400A

Why Choose the GL0400C1UL?

Designed for robust isolation in demanding AC applications, the Lovato GL0400C1UL switch disconnector delivers 400 A performance across AC21A, AC22A and AC23A duties at 400-690 V. This 3-pole, UL98 device combines a 1000 V Ui and 12 kV Uimp with panel-friendly screw-on plate installation. The GL0400C1UL supports safe, reliable switching in industrial control panels where standards compliance and dependable thermal capacity (Ith 400 A) are essential.

Built for longevity and safety, this switch disconnector offers 10,000 mechanical cycles, a conditional short-circuit current of 80 kA with J/400 fuse protection, and low power dissipation at 26 W per pole. Precise 30 to 37 Nm terminal torque, -25 to +55 °C operating range and 3000 m altitude capability support dependable service. Conforms to IEC/EN 60947-3 and IEC/EN 60947-1.

Key Benefits

• 3-pole, 400 A AC switching across AC21A, AC22A and AC23A duties.
• High insulation ratings: 1000 V Ui and 12 kV impulse withstand.
• UL98 compliant and conforms to IEC/EN 60947-3 and 60947-1.
• Screw-on plate mounting simplifies panel integration and maintenance.
• 80 kA conditional short-circuit rating with specified J/400 fuse.
• Robust mechanical life of 10,000 cycles for dependable service.
• Defined terminal tightening torque 30 to 37 Nm for secure terminations.
• Operates from -25 to +55 °C and up to 3000 m altitude.

Technical Specification

• Number of poles: 3
• Operating voltage type: AC
• Ith (IEC): 400 A
• Rated insulation voltage Ui (IEC/EN): 1000 V
• Rated impulse withstand voltage Uimp: 12 kV
• Operating current Ie AC21A 400 V: 400 A
• Operating current Ie AC21A 500 V: 400 A
• Operating current Ie AC21A 690 V: 400 A
• Operating current Ie AC22A 400 V: 400 A
• Operating current Ie AC22A 500 V: 400 A
• Operating current Ie AC22A 690 V: 400 A
• Operating current Ie AC23A 400 V: 400 A
• Operating current Ie AC23A 500 V: 400 A
• Operating current Ie AC23A 690 V: 400 A
• Power dissipation per pole (max): 26 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 GL0400C1UL switch disconnector unit
• Installation and operating instructions
• Product datasheet

Applications

• Main isolation switch for industrial control panels
• Load disconnection for AC motor and resistive circuits
• Power distribution boards requiring reliable on-load isolation
• OEM machinery complying with UL98 and IEC/EN 60947-3

Safety note: Installation and commissioning must be performed by authorised personnel. Always isolate the supply, fit the specified J/400 fuse, and tighten terminals to the stated torque. Do not exceed published ratings or environmental limits.