1SCA022555R7820 ABB 3-Pole Metal Enclosed Safety Switch

Why Choose the ABB OTL90A3B 90A 3-Pole Metal Enclosed Safety Switch?

The ABB OTL90A3B, order code 1SCA022555R7820, is a robust three-pole metal enclosed safety switch designed for dependable load breaking and local electrical isolation of industrial motors, machinery and electrical equipment. As part of ABB's Metal Enclosed (Loadbreak) product group, it combines ABB OTL switching technology with a durable steel-sheet enclosure for demanding industrial installations.

The OTL90A3B features a highly visible red-yellow pistol handle with I-O / ON-OFF indication. Its rigid alu-zinc coated steel enclosure has a polyester powder-coated finish, hinged door and door lock. The cover is interlocked so it cannot normally be opened while the switch is ON, while the interlock can be defeated for authorised procedures such as thermographic inspection.

For demanding motor loads, the OTL90A3B provides an AC-23A operational current of 90 A and motor rating of 45 kW at 380–415 V. It also includes 1 NO auxiliary contact, a PE terminal, IP65 protection and B-flange cable outlets, providing a complete enclosed isolation solution for industrial equipment.

Key Advantages

• Robust three-pole metal enclosed safety switch for industrial isolation.
• 90 A AC-23A operational current at 380–415 V.
• 45 kW motor switching capability at 400–415 V AC-23A.
• IP65 steel-sheet enclosure provides protection for demanding industrial environments.
• Highly visible red-yellow pistol handle provides clear switch-position identification.
• Includes 1 NO auxiliary contact for signalling and associated control functions.
• Interlocked hinged cover with defeatable interlocking supports controlled maintenance access.
• B-flange cable outlets provide a practical cable-entry arrangement.

Key Features

• ABB OTL enclosed safety switch range.
• Three-pole switching configuration.
• 90 A AC-23A at 380–415 V.
• 45 kW motor rating at 400 V AC-23A.
• 70 A AC-23A at 500 V.
• 50 A AC-23A at 690 V.
• 45 kW motor rating at 500 V and 690 V AC-23A.
• IP65 steel-sheet enclosure.
• Rigid alu-zinc coated steel construction with polyester powder coating.
• Red-yellow pistol handle with I-O / ON-OFF indication.
• 1 NO auxiliary contact included.
• Provision for up to 2 NO + 2 NC auxiliary contacts.
• PE terminal included for protective earthing.
• B-flange cable outlets.

High-Capacity Three-Pole Isolation for Industrial Equipment

Metal enclosed safety switches such as the ABB OTL90A3B provide a clearly identifiable means of manually disconnecting industrial equipment from its electrical supply. Its three-pole configuration is suited to three-phase circuits, while its 90 A AC-23A capability at 380–415 V supports demanding motor and machinery applications.

The OTL90A3B combines ABB load-break switching technology with a robust IP65 steel enclosure and distinctive red-yellow operating handle. Its included auxiliary contact, PE terminal, interlocked cover and B-flange cable arrangement provide a practical enclosed solution for local motor, machinery and maintenance isolation.

Typical Applications

• Three-phase industrial motor isolation.
• Production and processing machinery.
• Conveyors and material handling systems.
• Pumps and pumping equipment.
• Fans and ventilation systems.
• Machine tools and manufacturing equipment.
• Industrial control and automation installations.
• Local maintenance and safety isolation points.