ABB OT25G1-4MQN2 25 A four-pole OT Plus switch disconnector with quick-spring terminals, direct-mounted padlockable handle and base or DIN-rail mounting.
£529.40
The ABB 1SCA163443R1001, also identified as the OT25G1-4MQN2, is a compact and dependable 25 A four-pole switch disconnector designed for safe electrical isolation in industrial, commercial and OEM applications. Part of the proven ABB OT Plus switch disconnector range, it offers reliable switching performance while supporting straightforward installation in control panels, distribution boards and machinery.
The switch features a front-operated mechanism with quick-spring terminals for rapid installation and a direct-mounted operating handle supplied as standard. The handle can be padlocked in the OFF position, improving operator safety during maintenance and helping prevent accidental reconnection.
With a rated operational current of 25 A, a four-pole configuration and an N2 neutral arrangement, the OT25G1-4MQN2 is ideal for isolating three-phase electrical systems. Its compact G1 frame supports both base mounting and DIN-rail installation, making it suitable for modern electrical enclosures with standard 45 mm DIN cut-outs.
The ABB OT25G1-4MQN2 provides safe manual isolation of electrical circuits during maintenance, servicing and inspection. Its four-pole switching mechanism disconnects all live conductors simultaneously, helping improve personnel safety while protecting electrical equipment.
The compact OT Plus design, combined with quick-spring terminals and flexible mounting options, makes this switch disconnector an excellent choice for panel builders, machine manufacturers and electrical contractors seeking dependable isolation equipment.
| Current | 25 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | OT Plus |
| Product ID | 1SCA163443R1001 |
| Model | OT25G1-4MQN2 |
| Product type | Manual switch disconnector |
| Rated current | 25 A |
| Number of poles | 4 |
| Neutral configuration | N2 |
| Rated operational voltage | Up to 800 V AC |
| Rated motor power (AC-23A, 400 V) | 11 kW |
| Terminal type | Quick-spring terminals |
| Operation | Front operated |
| Mounting type | Base mounting / DIN-rail mounting |
| Frame size | G1 |
| Handle | Direct-mounted, padlockable knob handle |
| HS Code | 85365080 |
| Country of Manufacture | Finland |
It is used to safely isolate low-voltage electrical circuits in industrial, commercial and OEM electrical installations.
The OT25G1-4MQN2 has a rated operational current of 25 A.
No. This version features quick-spring terminals for fast and secure conductor installation.
Yes. The supplied direct-mounted knob handle can be padlocked in the OFF position for improved maintenance safety.
Yes. The OT25G1-4MQN2 is suitable for both base mounting and DIN-rail installation.
ABB OT Plus switch disconnectors are trusted worldwide by electrical contractors, panel builders and OEM manufacturers for dependable isolation, compact installation and long-term reliability in demanding industrial applications.
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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...