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GLCMB0125T4D024 Lovato 4 Pole 125A 690V Motorised Changeover Switch
MPN: GLCMB0125T4D024
Why Choose the Lovato GLCMB0125T4D024 4-Pole 125A 690V Motorised Changeover Switch?
The Lovato GLCMB0125T4D024 is a heavy-duty 4-pole motorised changeover switch rated at 125 A with a maximum operational voltage of 690 V AC. It incorporates a 24 V DC motor actuator to remotely toggle between two power sources with a central OFF position (I–0–II), allowing safe, automatic transfer in backup generator systems, ATS panels, or dual-supply installations. Built to stringent IEC 60947-6-1 and IEC 60947-3 standards, it is engineered for long life and high performance in demanding commercial and industrial environments.
Technical Specifications
- Product Code: GLCMB0125T4D024
- Number of Poles: 4 (L1, L2, L3, Neutral)
- Rated Current (Ith): 125 A
- Rated Operational Voltage (Ue): 690 V AC
- Motor Control Voltage: 24 V DC
- Switching Configuration: I – 0 – II (Changeover with central OFF)
- Standards Compliance: IEC 60947-6-1, IEC 60947-3
- Mounting: Base or panel-mounted
- Mechanical Durability: ≥10,000 operations
- Contact Position Indicator: Visible through front window
Key Features
- 4-pole isolation – disconnects all live conductors including neutral
- Motorised operation via 24 V DC signal for remote automation
- Centre OFF position ensures complete disconnection between sources
- Padlockable positions enhance maintenance safety
- Compact modular body – optimised for ATS enclosures
- Visible status window for contact position verification
Compatibility & Accessories
Fully compatible with Lovato ATL Automatic Transfer Switch Controllers, door interlocked handles, auxiliary signalling contacts, IP66/IP69K enclosures, and top/bottom terminal covers. Designed for integration with PLC systems or relay-based remote switching infrastructure.
Frequently Asked Questions
- What current can the GLCMB0125T4D024 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
“Our ATS panels rely on the GLCMB0125T4D024 for seamless generator transitions. Compact, reliable, and automation-friendly.” – Electrical Controls Manager
This changeover switch supports up to 125 A, making it suitable for medium-load circuits and backup generator transfers.
It features an integrated 24 V DC motor actuator that enables remote switching using PLC outputs, ATS logic, or relay signals.
The device complies with IEC 60947-6-1 (changeover functions) and IEC 60947-3 (switch-disconnectors).
The motorised actuator operates on 24 V DC, allowing low-voltage safe automation control.
The device itself is not IP rated but must be mounted inside a sealed IP-rated enclosure (e.g., IP65/66) to meet environmental protection standards.
Ideal for ATS panels, generator changeover systems, critical supply switching, and industrial automation requiring 4-pole isolation.
| Manufacturer Part Number | GLCMB0125T4D024 |
|---|---|
| Manufacturer | Lovato |
| Barcode | 8013975326664 |
| 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 |










