Lovato GLCMB0200D024UL UL 1008-certified motorised three-pole changeover switch with a 200 A current rating and 24 V DC motor operator for automatic source-transfer applications.
£3,091.43
The Lovato GLCMB0200D024UL is a UL 1008-certified motorised three-pole changeover switch designed to transfer electrical loads safely between two independent power sources. Its 200 A current rating and 24 V DC motor operator make it particularly suitable for automatic transfer switch panels, standby generator systems and battery-backed control installations.
Part of the Lovato GLCM range, the GLCMB0200D024UL combines a mechanically interlocked changeover mechanism with remote motorised operation. When integrated with a suitable automatic transfer controller, it can transfer a three-phase load between utility and alternative supplies while preventing both sources from being connected simultaneously.
The switch carries cULus certification under UL certificate E501475 and is manufactured for transfer-switch applications requiring dependable operation, high short-circuit performance and straightforward switchboard integration.
The Lovato GLCMB0200D024UL uses a motor-driven break-before-make changeover sequence. During a transfer, the connected load is disconnected from the active source before the alternative source is engaged. This controlled centre-off operation helps prevent accidental electrical connection between two independent supplies.
Its 24 V DC motor operator is particularly useful in generator and emergency-power systems because the switching mechanism can be powered from a battery-backed control supply during a utility failure. A compatible transfer controller can monitor both sources and command the switch when voltage, frequency or phase conditions fall outside configured limits.
Manual operation is also available for commissioning, maintenance or emergency use. The mechanical interlocking arrangement ensures that source I and source II cannot be closed at the same time.
| Current | 200 A |
|---|---|
| Voltage | 690 V |
| Phase | Three Phase |
| IP Rating | IP00 |
| Manufacturer | Lovato Electric |
| Series | GLCM UL |
| Order code | GLCMB0200D024UL |
| Product type | Motorised changeover switch |
| Number of poles | 3 |
| UL standard | UL 1008 |
| Certification | cULus |
| UL certificate | E501475 |
| IEC conventional free-air thermal current (Ith) | 200 A |
| Motor rated operational voltage | 24 V DC |
| Motor operating voltage range | 19.2–31.2 V DC |
| Motor rated current | Approximately 2.7–3.3 A |
| Motor inrush current | Approximately 5.4–6.6 A |
| Rated insulation voltage (Ui) | 1000 V |
| Rated impulse withstand voltage (Uimp) | 12 kV |
| AC-21A operational current | 200 A at 400, 500 and 690 V |
| AC-22A operational current | 200 A at 400, 500 and 690 V |
| AC-23A operational current | 200 A at 400, 500 and 690 V |
| Rated operational power, AC-23A | 110 kW at 400 V; 200 kW at 690 V |
| Maximum UL operational voltage | 600 V AC |
| Short-circuit rating | Up to 100 kA rms with specified protective device |
| Recommended UL fuse protection | Class J, 200 A |
| Mechanical endurance | Up to 20,000 operating cycles |
| I–O / O–I operating time | Approximately 0.55–0.89 seconds |
| I–O–II / II–O–I operating time | Approximately 0.98–1.40 seconds |
| Maximum continuous switching rate | 1 cycle per minute |
| Maximum short-time switching rate | 10 cycles per minute |
| Power terminal type | M8 |
| Power conductor capacity | 70–185 mm² |
| Control conductor capacity | 0.2–2.5 mm² |
| Maximum control cable length | 100 m |
| Mounting method | Screw fixing |
| Permitted operating position | Any |
| Operating temperature | -25°C to +55°C |
| Storage temperature | -40°C to +70°C |
| Maximum installation altitude | 3000 m |
| Pollution degree | 3 |
| Product weight | 8.15 kg |
| Package quantity | 1 |
| Package dimensions | 371 × 253 × 220 mm |
| Package volume | 20,649.86 cm³ |
| EAN-13 | 8013975326824 |
| HS Code | 85365080 |
It is used to transfer a three-phase electrical load between two independent power sources, such as the utility supply and a standby generator.
Yes. It is certified to UL 1008, carries cULus approval and is covered by UL certificate E501475.
The GLCMB0200D024UL has an IEC conventional free-air thermal current rating of 200 A and is designed for 200 A transfer-switch applications.
The motor operator is rated for 24 V DC, with an approximate operating range of 19.2–31.2 V DC.
It has a three-pole configuration intended for switching three-phase conductors.
Yes. It passes through a centre-off position, disconnecting the active source before connecting the alternative source.
Yes. The motorised switch can be integrated with a compatible automatic transfer controller to monitor power sources and initiate transfer commands.
Yes. Manual operation is available for commissioning, maintenance and emergency use when the motor supply or automatic controller is unavailable.
A suitable 200 A Class J fuse is typically specified for achieving the stated UL short-circuit performance. Final protection must follow the manufacturer's technical documentation and the applicable installation standard.
Lovato GLCM UL motorised changeover switches provide panel builders, OEMs, electrical contractors and power-system integrators with dependable source-transfer equipment for critical commercial and industrial installations.
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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...