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OTL75T3B Safety switch
ABB OTL75T3B enclosed 3-pole safety switch with an 80 A rating, IP65 steel enclosure, 37 kW switching capacity and 1 NO plus 1 NC auxiliary contacts for industrial electrical isolation.
£310.46
Why Choose the ABB OTL75T3B Enclosed Safety Switch?
The ABB OTL75T3B (1SCA022546R0820) is a robust 3-pole enclosed safety switch designed to provide reliable electrical isolation for industrial machinery, power distribution systems and commercial installations. As part of the proven ABB OTL enclosed safety switch series, it offers safe manual isolation of electrical circuits whilst protecting personnel during maintenance and servicing operations.
Built within a durable steel enclosure with a polyester powder-coated finish, the OTL75T3B is engineered to withstand demanding industrial environments. Its hinged, lockable door incorporates an interlocked mechanism that prevents the enclosure from being opened while the switch is energised, enhancing operator safety. The enclosure also offers IP65 protection, making it suitable for both indoor and outdoor installations.
Rated for 80 A at 380-415 V AC (AC-23A) with a switching capacity of 37 kW, the OTL75T3B is ideal for isolating motors, machinery, pumps, HVAC equipment and industrial power supplies. The unit includes 1 NO and 1 NC auxiliary contacts for signalling and control applications.
Key Advantages
- Heavy-duty 3-pole enclosed safety switch for industrial isolation.
- 80 A AC-23A switching current suitable for motor applications.
- 37 kW switching capacity at 400 V AC.
- IP65 steel enclosure for harsh industrial environments.
- Interlocked, lockable door enhances operator safety.
- Supplied with 1 NO and 1 NC auxiliary contacts for status signalling.
Key Features
- ABB OTL enclosed safety switch series.
- Model: OTL75T3B.
- Manufacturer Part Number: 1SCA022546R0820.
- 3-pole switch disconnector.
- 80 A rated operational current.
- 750 V AC maximum operational voltage.
- 37 kW motor switching capacity.
- Steel enclosure with polyester powder coating.
- IP65 protection for indoor and outdoor use.
- 1 NO + 1 NC auxiliary contacts fitted.
Reliable Electrical Isolation for Industrial Installations
Enclosed safety switches provide a secure means of disconnecting electrical equipment from the power supply during servicing, inspection and maintenance. They help protect maintenance personnel while ensuring machinery remains safely isolated before work begins.
The ABB OTL75T3B combines a heavy-duty switch disconnector with a weather-resistant enclosure, making it suitable for industrial manufacturing, utilities, commercial buildings and outdoor electrical installations where dependable isolation is essential.
Typical Applications
- Industrial machinery isolation.
- Motor control systems.
- Pump and fan installations.
- HVAC equipment.
- Commercial electrical distribution.
- Manufacturing plants and processing facilities.
Technical Specifications
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| Material | GRP / Polyester | |
|---|---|---|
| Device Type | Enclosed safety switch / isolator | |
| Power | 37 kW | |
| Current | 80 A | |
| Phase | Three Phase | |
| IP Rating | IP65 | |
| Poles | 3-pole | |
| Manufacturer | ABB | |
| Series | OTL Enclosed Safety Switches | |
| Model | OTL75T3B | |
| MPN | 1SCA022546R0820 | |
| Product type | Enclosed safety switch / switch disconnector | |
| Rated operational current | 80 A | |
| Switching capacity | 37 kW | |
| Maximum operational voltage | 750 V AC | |
| Number of poles | 3 | |
| Protection rating | IP65 | |
| Auxiliary contacts | 1 NO + 1 NC | |
| Terminal type | Screw clamp | |
| Enclosure material | Alu-zinc coated steel with polyester powder coating | |
| Dimensions (H × W × D) | 300 × 200 × 135 mm | |
| HS Code | 85365080 | |
| Country of Manufacture | Bulgaria |
Frequently Asked Questions
What is the ABB OTL75T3B used for?
The OTL75T3B is used to safely isolate electrical circuits supplying industrial machinery, motors and power distribution equipment.
What is the current rating of this safety switch?
The switch has a rated operational current of 80 A.
Is the enclosure suitable for outdoor installation?
Yes. The enclosure is rated IP65, providing excellent protection against dust and water ingress for indoor and outdoor installations.
Does the switch include auxiliary contacts?
Yes. The OTL75T3B is supplied with 1 normally open (NO) and 1 normally closed (NC) auxiliary contact for signalling applications.
Can the enclosure be locked during maintenance?
Yes. The hinged door incorporates a lockable interlocked mechanism that helps prevent unauthorised operation during maintenance work.
Trusted by Electrical Professionals Worldwide
ABB enclosed safety switches are widely trusted by panel builders, maintenance engineers and industrial contractors for delivering dependable electrical isolation, robust environmental protection and long-term operational reliability.
