Lovato GL0320C1 IEC/EN three-pole switch disconnector 320A

Why Choose the GL0320C1?

Designed for reliable isolation in demanding panels, the Lovato GL0320C1 three‑pole switch disconnector delivers robust AC performance at 320 A. Part of the GL series, it conforms to IEC/EN 60947‑3 and 60947‑1, with a rated insulation voltage Ui of 1000 V and impulse withstand Uimp of 12 kV. Screw‑on plate mounting simplifies installation in switchboards and control gear where dependable manual disconnection and clear circuit segregation are essential.

Performance is consistent across duty categories: Ie AC21A and AC22A up to 320 A, and AC23A up to 320 A (200 A at 1000 V). Rated operational power reaches 160 kW at 400 V and 315 kW at 690 V. With 80 kA conditional short‑circuit capability using a gG/355 fuse, 10,000 mechanical cycles, 30–37 Nm terminal torque, operation from −25 to +55 °C, pollution degree 3, and use up to 3000 m altitude.

Key Benefits

• Three‑pole isolation for AC systems with 1000 V rated insulation.
• 320 A Ith supports heavy industrial loads and distribution.
• 80 kA conditional short‑circuit withstand with gG/355 fuse.
• High AC23A power: 160 kW at 400 V, 315 kW at 690 V.
• Reliable lifecycle with 10,000 mechanical operating cycles.
• Secure connections with 30–37 Nm terminal tightening torque.
• Screw‑on plate mounting simplifies panel installation.
• Suitable for −25 to +55 °C and up to 3000 m altitude.

Technical Specification

• Product type designation: GL
• 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
• Operating current Ie AC21A 400 V: 320 A
• Operating current Ie AC21A 500 V: 320 A
• Operating current Ie AC21A 690 V: 320 A
• Operating current Ie AC21A 1000 V: 320 A
• Operating current Ie AC22A 400 V: 320 A
• Operating current Ie AC22A 500 V: 320 A
• Operating current Ie AC22A 690 V: 320 A
• Operating current Ie AC23A 400 V: 320 A
• Operating current Ie AC23A 500 V: 320 A
• Operating current Ie AC23A 690 V: 320 A
• Operating current Ie AC23A 1000 V: 200 A
• 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
• Pollution degree: 3

What’s Included

• Lovato GL0320C1 three‑pole switch disconnector
• Basic installation and safety leaflet
• Manufacturer data sheet (downloadable)

Applications

• Main isolation switch for industrial control panels and distribution boards
• Load disconnection for machinery and motor circuits within AC systems
• Planned maintenance shutdowns and safe equipment lockout
• Switching of resistive and mixed loads per AC21A/AC22A/AC23A duties

Safety note: Installation and operation must be performed by qualified personnel. Isolate all power sources before work, use the specified gG/355 fuse, and tighten terminals to 30–37 Nm in accordance with IEC/EN standards and the manufacturer’s instructions.