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1SCA163433R1001 ABB OT25G1-4BSN1 Switch-disconnector OT Plus 25 A, size G1, 4-pole, incl. handle
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.
£21.74
Why Choose the ABB 1SCA163433R1001 OT25G1-4BSN1 Switch Disconnector?
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.
Key Advantages
- Reliable 25 A electrical isolation for low-voltage circuits.
- Four-pole configuration for switching three phases and neutral.
- Neutral pole positioned on the left-hand side.
- Suitable for both base mounting and DIN-rail mounting.
- Padlockable operating handle improves maintenance safety.
- Compact G1 frame helps conserve space inside control panels.
Key Features
- ABB OT Plus switch-disconnector series.
- 25 A rated current.
- Four-pole switching configuration.
- Left-positioned neutral pole, designated N1.
- Front-operated manual switching mechanism.
- Integrated screw terminals for secure conductor connections.
- Direct-mounted knob handle included.
- Handle can be padlocked in the OFF position.
- Supports an operating shaft for external panel-door operation.
- Base-mounted and DIN-rail-mountable construction.
Reliable Electrical Isolation for Low-Voltage Systems
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.
Typical Applications
- Industrial machinery and automation panels.
- Electrical distribution boards.
- Motor control centres and control cabinets.
- Heating, ventilation and air-conditioning equipment.
- Solar and renewable-energy isolation systems.
- Pumps, fans and processing machinery.
- Commercial and industrial electrical installations.
Technical Specifications
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| Device Type | Switch Disconnector | |
|---|---|---|
| Mounting Type | DIN rail | |
| Product Series | ABB OT Plus | |
| Current | 25 A | |
| Phase | Three Phase | |
| Poles | 4-pole | |
| 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 |
Frequently Asked Questions
What is the ABB 1SCA163433R1001 used for?
The ABB 1SCA163433R1001 is used to manually disconnect and isolate low-voltage electrical circuits for operation, inspection and maintenance.
What is the rated current of this switch disconnector?
The OT25G1-4BSN1 has a rated current of 25 A.
How many poles does the OT25G1-4BSN1 have?
This switch disconnector has four poles, allowing three phase conductors and a neutral conductor to be switched together.
Where is the neutral pole positioned?
The N1 configuration indicates that the neutral pole is positioned on the left-hand side of the switch disconnector.
Can the ABB OT25G1-4BSN1 be mounted on a DIN rail?
Yes. The unit is designed for both base mounting and DIN-rail mounting inside electrical panels and enclosures.
Trusted Electrical Isolation from ABB
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.
