ABB 1SCA163433R1001 OT25G1-4BSN1 OT Plus 25 A four-pole switch disconnector with a left-positioned neutral pole, screw terminals, padlockable handle and base or DIN-rail mounting.
£33.44
The ABB 1SCA163433R1001, also identified as the OT25G1-4BSN1, is a compact and dependable 25 A four-pole switch disconnector designed for safe electrical isolation in industrial, commercial and automation applications. As part of the advanced ABB OT Plus switch-disconnector range, it provides reliable circuit isolation while supporting efficient installation inside distribution boards, control panels and machinery.
This manually operated switch disconnector features a front-operated design, integrated screw terminals and a direct-mounted operating handle. The handle can be padlocked in the OFF position, helping maintenance personnel prevent accidental reconnection while electrical equipment is being inspected or serviced.
The OT25G1-4BSN1 has a rated current of 25 A and a four-pole configuration with the neutral pole positioned on the left. Its compact G1 frame supports base mounting and DIN-rail installation, making it suitable for space-conscious electrical enclosures and panels with a standard 45 mm DIN cut-out.
Switch disconnectors provide a visible and dependable means of isolating electrical circuits from their power supply. The ABB OT25G1-4BSN1 enables all four poles to be disconnected together, making it particularly suitable for three-phase systems where the neutral conductor must also be isolated.
The compact OT Plus design is intended to simplify panel construction and equipment maintenance. Its secure screw terminals, flexible mounting arrangement and padlockable handle help installers create safe and practical isolation points for machinery, distribution systems and industrial control equipment.
| Current | 25 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | OT Plus |
| Product ID | 1SCA163433R1001 |
| Model | OT25G1-4BSN1 |
| Product type | Manual switch disconnector |
| Rated current | 25 A |
| Number of poles | 4 |
| Neutral position | Left, N1 configuration |
| Operation type | Front operated |
| Terminal type | Integrated screw terminals |
| Handle | Direct-mounted knob handle |
| Padlocking | Padlockable in the OFF position |
| Mounting type | Base mounting / DIN-rail mounting |
| Frame size | G1 |
| Panel compatibility | Suitable for 45 mm DIN cut-outs |
| External operation | Compatible with an extension shaft |
| HS Code | 85365080 |
| Country of Manufacture | Finland |
The ABB 1SCA163433R1001 is used to manually disconnect and isolate low-voltage electrical circuits for operation, inspection and maintenance.
The OT25G1-4BSN1 has a rated current of 25 A.
This switch disconnector has four poles, allowing three phase conductors and a neutral conductor to be switched together.
The N1 configuration indicates that the neutral pole is positioned on the left-hand side of the switch disconnector.
Yes. The unit is designed for both base mounting and DIN-rail mounting inside electrical panels and enclosures.
ABB OT Plus switch disconnectors are widely selected by panel builders, electrical contractors and automation engineers for dependable isolation, compact installation and straightforward operation in low-voltage electrical systems.
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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...