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GLCMB0125T4A230 Lovato 4 Pole 125A 690V Motorised Changeover Switch
MPN: GLCMB0125T4A230
Why Choose the Lovato GLCMB0125T4A230 4-Pole 125A 690V Motorised Changeover Switch?
The Lovato GLCMB0125T4A230 is a motorised 4-pole changeover switch rated for 125 A at 690 V AC, ideal for fully isolating all phases and neutral in dual-supply systems. Featuring a 208–277 V AC motor actuator, it enables safe and automated switching between power sources with a central OFF position. Designed to meet IEC 60947-6-1 and IEC 60947-3 standards, this robust switch is suited to generator backup panels, ATS systems, and critical infrastructure applications.
Technical Specifications
- Product Code: GLCMB0125T4A230
- Poles: 4 (3 phases + neutral)
- Rated Current (Ith): 125 A
- Rated Operational Voltage (Ue): 690 V AC
- Motor Control Voltage: 208–277 V AC
- Switching Positions: I – 0 – II
- Conformity: IEC 60947-6-1, IEC 60947-3
- Mounting: Base or panel mounting
Key Features
- 4-pole isolation ensures safe switching of all live conductors including neutral
- Motorised actuator enables automated control via high-voltage logic inputs
- I – 0 – II switching allows reliable changeover with clear OFF position
- Compact form factor ideal for ATS panels or tight enclosure layouts
- Visible contact position via transparent window for enhanced safety
- Padlockable in all three positions for secure maintenance
Compatibility & Accessories
Fully compatible with Lovato’s GLC series accessories, including door-interlocked handles, auxiliary contacts, terminal covers, and IP-rated enclosures (IP66, IP69K, NEMA 4X). Can be driven by Lovato ATL-series ATS controllers or third-party PLC/relay logic.
Frequently Asked Questions
- What current can the GLCMB0125T4A230 handle?
- How is the motorised changeover controlled remotely?
- Which international standards does it comply with?
- What control voltage is required for operation?
- Is the changeover switch IP rated?
- What are typical applications of this device?
Trusted by Customers Worldwide
"We rely on the GLCMB0125T4A230 in our switchgear for safe generator changeover and full phase isolation — always dependable." – Industrial Controls Supervisor
This model supports up to 125 A (conventional thermal current), ideal for medium-duty distribution and ATS systems.
A 208–277 V AC motor actuator allows automated I–0–II switching via ATS controllers, PLC logic, or relay systems.
Designed to meet IEC 60947-6-1 (changeover switch) and IEC 60947-3 (switch-disconnector) specifications.
The motor actuator operates on 208–277 V AC, compatible with most industrial high-voltage control systems.
The switch itself is not IP rated, but is intended for installation within IP-rated enclosures for full protection.
Ideal for generator changeover panels, dual-mains ATS systems, and automated electrical switching requiring full 4-pole isolation.
| Manufacturer Part Number | GLCMB0125T4A230 |
|---|---|
| Manufacturer | Lovato |
| Barcode | 8013975326763 |
| Number of Poles | 4 pole |
| Conditioned rated short-circuit current Iq | 100kA |
| Rated operation power at AC-23, 400 V | 55kW |
| Rated permanent current at AC-21, 400 V | 125A |
| Switching power at 400 V | 1000kW |
| Rated permanent current at AC-23, 400 V | 125A |
| Voltage | 690V |
| Maximum Continuous Voltage | 690V |
| Degree of protection (IP) | IP00 |
| Amperage | 125A |
| Type of electric connection | Screw connection |
| Packed Quantity | 1 |
| Height | 141mm |
| Width | 314mm |
| Depth | 191mm |
| Colour | Black |











