Lovato GL0400C1 IEC/EN three-pole switch disconnector 400A

Why Choose the GL0400C1?

Built for reliable isolation and load switching, the Lovato GL0400C1 is a three‑pole switch disconnector rated 400 A for AC systems. The GL series device suits plate-mounted installations and complies with IEC/EN 60947-3 and 60947-1. With Ui 1000 V and Uimp 12 kV, the SKU GL0400C1 delivers robust performance across AC-21A, AC-22A and AC-23A duty categories.

It provides 80 kA conditional short-circuit withstand with gG/400 fuse protection, plus mechanical life of 10,000 cycles for dependable service. Rated operating currents include 400 A at AC-23A 400–690 V and 200 A at AC-23A 1000 V. Wide environmental range (-25 to +55 °C, up to 3000 m, pollution degree 3) and 30–37 Nm terminal torque support secure panel integration.

Key Benefits

• 400 A thermal current for high-capacity AC distribution.
• Ui 1000 V and 12 kV impulse withstand for insulation robustness.
• AC-21A/22A/23A ratings enable versatile load switching duties.
• 80 kA conditional short-circuit withstand with gG/400 fuse coordination.
• Mechanical life of 10,000 cycles supports long service intervals.
• Screw-on-plate installation simplifies panel mounting.
• Wide operating temperature range -25 to +55 °C for harsh environments.
• 30–37 Nm terminal torque ensures secure, reliable connections.

Technical Specification

• Product type designation: GL
• 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 AC21A 1000 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
• Operating current Ie AC23A 1000 V: 200 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: gG/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
• Pollution degree: 3

What’s Included

• GL0400C1 switch disconnector unit
• Manufacturer documentation

Applications

• Main isolation and switching for industrial AC panels and switchboards
• Load switching for AC circuits up to 1000 V within AC-21A/22A/23A duties
• Motor isolation and maintenance switching under AC-23A categories
• Plate-mounted installations in distribution and control assemblies

Safety note: Installation and commissioning must be performed by qualified personnel. Isolate all power sources before work, use the specified gG/400 fuse, tighten terminals to 30–37 Nm, and follow IEC/EN 60947 and manufacturer guidance.