Why Choose the ABB OT630KLRR3TZ 630 A Enclosed Safety Switch Disconnector?
The ABB OT630KLRR3TZ is a heavy-duty 630 A three-pole enclosed safety switch disconnector designed for reliable electrical isolation and load switching in industrial and commercial power distribution systems. As part of the ABB OT enclosed loadbreak switch range, it combines robust switching performance with a durable steel sheet enclosure and integrated safety features for demanding electrical installations.
This safety switch features an IP65-rated steel enclosure with divided ring-flange cable entries at the top and bottom, providing a practical solution for cable installation while maintaining environmental protection when correctly assembled. Its front-operated switching mechanism includes a black pistol-type operating handle with clear ON/OFF indication, a cover interlock and a defeatable interlocking arrangement to support safe operation and maintenance.
With a 630 A nominal current classification, three-pole switching configuration and 570 A AC-23A operational current rating, the OT630KLRR3TZ is suitable for high-current industrial isolation duties. The switch also incorporates two normally open and one normally closed auxiliary contacts, enabling switch-position indication and integration with external monitoring or control circuits.
Key Advantages
- Heavy-duty 630 A enclosed safety switch disconnector for industrial electrical isolation.
- Three-pole switching configuration suitable for three-phase power distribution systems.
- IP65-rated steel sheet enclosure provides protection against dust and water jets when correctly installed.
- Divided top and bottom cable entry arrangement simplifies cable installation and maintenance.
- Integrated 2 NO + 1 NC auxiliary contacts support electrical status monitoring.
- Black pistol-type operating handle provides clear ON/OFF switching indication.
- Cover interlocking and defeatable interlocking features improve operational safety.
- Robust enclosed construction supports dependable performance in demanding industrial environments.
Key Features
- ABB OT enclosed safety switch disconnector range.
- 630 A nominal current classification.
- 570 A rated operational current for AC-23A applications at 415 V AC.
- Three-pole (3P) switching configuration.
- IP65 enclosure protection rating.
- Durable grey steel sheet enclosure.
- Divided ring-flange cable entries at the top and bottom.
- Four ring-flange cable outlet positions per side.
- Four ring-flange cover plates included.
- Two normally open and one normally closed auxiliary contacts.
- Auxiliary contacts pre-wired to terminal blocks.
- Front-operated black pistol-type handle with I-0 / ON-OFF indication.
- Cover interlock and defeatable interlocking mechanism.
- Protective earth terminal included.
- Suitable for fixed installation in industrial electrical distribution systems.
Technical Specifications
- Manufacturer: ABB
- Series: ABB OT Enclosed Safety Switches
- Model: OT630KLRR3TZ
- ABB order code: 1SCA022281R6230
- Product group: 311019-Metal Enclosed (Loadbreak)
- Product type: Enclosed safety switch disconnector
- Nominal current classification: 630 A
- Rated operational current (AC-23A, 415 V): 570 A
- Rated operational current (AC-23A, 690 V): 570 A
- Motor power rating (AC-23A, 415 V): 315 kW
- Motor power rating (AC-23A, 690 V): 560 kW
- Number of poles: 3
- Enclosure material: Steel sheet
- Enclosure colour: Grey
- Protection rating: IP65
- Operating mechanism: Front operated
- Handle type: Black pistol-type handle
- Switch indication: I-0 / ON-OFF
- Auxiliary contacts: 2 NO + 1 NC
- Auxiliary contact connection: Pre-wired to terminal blocks
- Interlocking: Cover interlock with defeatable interlock
- Cable entry arrangement: Divided top and bottom entries
- Cable entry type: Ring-flange
- Cable outlets per side: 4 × ring-flange
- Ring-flange cover plates included: 4
- Line terminal arrangement: Top input / bottom output
- Protective earth terminal: Included
- Dimensions (H × W × D): 1000 × 400 × 230 mm
- Weight: Approximately 31 kg
- Mounting type: Fixed enclosed installation
Reliable Electrical Isolation for Industrial Power Distribution
Enclosed safety switch disconnectors such as the ABB OT630KLRR3TZ provide a dependable means of manually isolating electrical equipment from its power supply. The loadbreak switching mechanism allows circuits to be disconnected under suitable rated operating conditions, while the enclosed construction helps protect personnel from accidental contact with live electrical components during normal operation.
The ABB OT series is designed for industrial environments where robust switching performance, safe maintenance access and dependable electrical isolation are essential. The OT630KLRR3TZ combines a steel sheet enclosure, divided cable entry system, integrated auxiliary contacts and cover interlocking to support installation in industrial power distribution networks, machinery installations and motor control systems.
Typical Applications
- Industrial electrical power distribution systems.
- Three-phase machinery and equipment isolation.
- Main and local isolation points for industrial installations.
- Motor control centres and industrial motor circuits.
- Manufacturing plants and production facilities.
- Industrial processing and material handling equipment.
- Electrical switchgear and distribution assemblies.
- Maintenance isolation for high-current electrical equipment.
