Lovato GLC0250T4C1 four-pole changeover switch, a 250 A AC manual source transfer switch designed for industrial power distribution, generator changeover systems and electrical control panels.
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Why Choose the Lovato GLC0250T4C1 Changeover Switch?
The Lovato GLC0250T4C1 is a heavy-duty four-pole changeover switch designed for dependable manual transfer between two electrical supply sources in industrial and commercial low-voltage installations. As part of the Lovato GLC changeover switch series, it provides reliable AC switching, isolation and source selection for distribution panels, generator changeover systems and electrical control cabinets.
This changeover switch is engineered for applications where safe supply selection, durable operation and clear switching positions are essential. Its screw-on-plate mounting design supports secure installation inside electrical panels, while the I-0-II switching positions allow operators to select between source one, off and source two with confidence.
With a rated conventional free air thermal current of 250 A, a four-pole configuration and suitability for AC systems up to 690 V, the GLC0250T4C1 is ideal for mains-to-generator changeover, three-phase plus neutral switching, industrial distribution boards and machinery power control applications.
Key Advantages
Heavy-duty 250 A four-pole changeover switch.
Designed for manual transfer between two AC power sources.
I-0-II switching positions for clear source selection and isolation.
Four-pole design suitable for switching three-phase and neutral conductors.
Screw-on-plate installation for secure panel mounting.
Manufactured to recognised IEC/EN low-voltage switching standards.
Key Features
Lovato GLC series changeover switch.
250 A IEC conventional free air thermal current Ith.
Four-pole configuration for three-phase plus neutral systems.
AC operating voltage switching capability.
Rated operational voltage up to 690 V AC.
Rated insulation voltage of 1000 V.
Rated impulse withstand voltage of 12 kV.
Manual I-0-II changeover operation.
Reliable Four-Pole Changeover Switching
Changeover switches such as the Lovato GLC0250T4C1 allow operators to manually transfer electrical loads between two separate supply paths. This is commonly required where equipment must be switched between mains power, standby generators or alternative distribution circuits.
The four-pole design enables the switching of three-phase conductors and the neutral conductor, making it particularly useful in generator changeover systems and installations where complete source separation is required. Its robust operating mechanism and clear switching positions help support safe, repeatable operation in demanding electrical environments.
Typical Applications
Mains-to-generator changeover systems.
Three-phase plus neutral power distribution panels.
Industrial and commercial switchboards.
Manual source selection in control cabinets.
Motor control centres and machinery panels.
Maintenance and service isolation circuits.
Technical Specifications
Current
250 A
Phase
Three Phase
Manufacturer
Lovato Electric
Series
GLC
Model
GLC0250T4C1
Product type
Changeover switch / switch disconnector
Number of poles
4
Rated current Ith
250 A
Operating voltage type
AC
Switching AC voltage
690 V AC
Rated insulation voltage
1000 V
Rated impulse withstand voltage
12 kV
Rated operational current AC-31B
250 A at 400 / 500 / 690 V
Rated operational current AC-32B
250 A at 400 / 500 / 690 V
Rated operational current AC-33B
250 A at 400 / 500 / 690 V
Switching positions
I-0-II
Installation type
Screw on plate
Mounting type
Screw mounting
Terminal type
M8 x 20
Operating temperature
-25°C to +55°C
Dimensions (H × W × D)
approx. 154.9 × 212.5 × 212.5 mm
Standards
IEC/EN 60947-1, IEC/EN 60947-3, IEC/EN 60947-6-1
HS Code
85365080
Frequently Asked Questions
What is the Lovato GLC0250T4C1 used for?
The Lovato GLC0250T4C1 is used for manual changeover switching between two AC power supplies in industrial power distribution, generator transfer and control panel applications.
What current rating does the GLC0250T4C1 have?
The GLC0250T4C1 has a rated conventional free air thermal current of 250 A.
How many poles does this switch have?
This model has a four-pole configuration, making it suitable for switching three-phase and neutral conductors.
What operating voltage is supported?
The switch is suitable for AC applications with rated operational voltages up to 690 V AC.
Where is the GLC0250T4C1 typically installed?
The switch is typically installed inside electrical panels, switchboards and generator changeover systems using screw-on-plate mounting.
Trusted by Electrical Panel Builders Worldwide
Lovato GLC changeover switches are trusted by electrical engineers, panel builders and maintenance teams for reliable manual source transfer, robust construction and dependable operation in industrial power distribution systems.
Current
250 A
Phase
Three Phase
Manufacturer
Lovato Electric
Series
GLC
Model
GLC0250T4C1
Product type
Changeover switch / switch disconnector
Number of poles
4
Rated current Ith
250 A
Operating voltage type
AC
Switching AC voltage
690 V AC
Rated insulation voltage
1000 V
Rated impulse withstand voltage
12 kV
Rated operational current AC-31B
250 A at 400 / 500 / 690 V
Rated operational current AC-32B
250 A at 400 / 500 / 690 V
Rated operational current AC-33B
250 A at 400 / 500 / 690 V
Switching positions
I-0-II
Installation type
Screw on plate
Mounting type
Screw mounting
Terminal type
M8 x 20
Operating temperature
-25°C to +55°C
Dimensions (H × W × D)
approx. 154.9 × 212.5 × 212.5 mm
Standards
IEC/EN 60947-1, IEC/EN 60947-3, IEC/EN 60947-6-1
HS Code
85365080
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...