Lovato GLC0400T4C1 IEC/EN four-pole changeover switch 400A

Why Choose the Lovato GLC0400T4C1 Changeover Switch?

The Lovato GLC0400T4C1 is a heavy-duty four-pole changeover switch designed for reliable manual transfer between two electrical supply sources in demanding industrial and commercial low-voltage installations. As part of the Lovato GLC changeover switch series, it provides dependable AC switching, isolation and source selection for power distribution systems, generator changeover applications and electrical control panels.

Engineered for demanding environments, the GLC0400T4C1 combines high switching performance with durable mechanical construction to ensure long service life. Its screw-on-plate mounting, visible contacts and I-0-II operating positions provide safe and reliable manual source selection for critical electrical installations.

With a rated conventional free air thermal current of 400 A, a four-pole configuration and support for AC systems up to 690 V, the GLC0400T4C1 is ideal for mains-to-generator changeover, three-phase plus neutral distribution systems and industrial power applications.

Key Advantages

• Heavy-duty 400 A four-pole changeover switch.
• Manual transfer between two independent AC power sources.
• I-0-II switching positions provide safe source selection and isolation.
• Four-pole design switches three phases and neutral simultaneously.
• High short-circuit withstand capability for demanding installations.
• Manufactured in accordance with IEC/EN low-voltage switching standards.

Key Features

• Lovato GLC series changeover switch.
• 400 A IEC conventional free air thermal current Ith.
• Four-pole construction.
• 690 V AC maximum operational voltage.
• Manual I-0-II changeover operation.
• Rated insulation voltage of 1000 V.
• Rated impulse withstand voltage of 12 kV.
• Screw-on-plate mounting.

Technical Specifications

• Manufacturer: Lovato Electric
• Series: GLC
• Model: GLC0400T4C1
• Product type: Changeover switch / switch disconnector
• Number of poles: 4
• Rated current Ith: 400 A
• Operating voltage type: AC
• Maximum operational voltage: 690 V AC
• Rated insulation voltage: 1000 V
• Rated impulse withstand voltage: 12 kV
• Rated operational power AC-23A: 200 kW at 400 V, 400 kW at 690 V
• Conditional short-circuit current: 80 kA
• Short-circuit protection fuse: gG 400 A
• Making capacity AC-23A at 400 V: 4000 A
• Breaking capacity AC-23A at 400 V: 3200 A
• Switching positions: I-0-II
• Installation type: Screw on plate
• Terminal type: M10 x 25
• Mechanical durability: 10,000 operating cycles
• Operating temperature: -25°C to +55°C
• Maximum altitude: 3000 m
• Weight: approx. 8.81 kg
• EAN: 8013975267103
• Standards: IEC/EN 60947-1, IEC/EN 60947-3, IEC/EN 60947-6-1

Reliable Four-Pole Power Source Changeover

The Lovato GLC0400T4C1 enables safe manual transfer of electrical loads between two independent power supplies whilst providing complete isolation in the OFF position. Its four-pole design switches all three phases and the neutral conductor, making it suitable for installations requiring complete source separation.

Designed for industrial power distribution, standby generator installations and critical infrastructure, the GLC0400T4C1 delivers dependable switching performance, excellent electrical characteristics and reliable long-term operation.

Typical Applications

• Mains-to-generator changeover systems.
• Industrial and commercial switchboards.
• Three-phase plus neutral distribution systems.
• Electrical control panels.
• Manufacturing and processing facilities.
• Critical power transfer applications.

Trusted by Electrical Engineers Worldwide

Lovato GLC changeover switches are trusted by electrical engineers, panel builders and OEM manufacturers for dependable manual source transfer, robust construction and reliable operation in demanding industrial power distribution applications.