Why Choose the ABB OT250KLRR6TZ 250 A 6-Pole IP65 Steel Enclosed Safety Switch?
The ABB OT250KLRR6TZ is a 250 A, 6-pole steel enclosed safety switch-disconnector designed for local electrical isolation of industrial machinery, motors and low-voltage equipment. Part of the ABB OT enclosed switch-disconnector range, it combines six-pole switching, a robust steel enclosure and integrated auxiliary contacts to support industrial electrical safety and maintenance applications.
Featuring an IP65-rated enclosure, a black pistol-grip operating handle and ring-flange cable entries, the OT250KLRR6TZ provides a practical solution for installations requiring reliable electrical isolation in demanding environments. Its six-pole arrangement supports compatible applications requiring simultaneous disconnection of multiple conductors or circuits.
Identified by ABB manufacturer product ID 1SCA022338R7490 and order code OT250KLRR6TZ, the switch offers an AC-23A motor switching rating of 132 kW at 415 V AC and 200 kW at 690 V AC. The enclosure measures 800 × 800 × 230 mm and includes auxiliary contacts, protective earth connection facilities and top and bottom cable entry provisions.
Key Advantages
- 250 A current rating for compatible industrial electrical installations.
- 6-pole switching configuration supports simultaneous isolation of multiple electrical conductors.
- IP65-rated steel enclosure provides dust-tight protection and resistance to low-pressure water jets.
- 132 kW AC-23A motor switching capability at 415 V AC.
- 200 kW AC-23A motor switching capability at 690 V AC.
- Black pistol-grip operating handle provides clear manual ON/OFF operation.
- Integrated auxiliary contacts support electrical interlocking and status indication.
- 4 normally open and 2 normally closed auxiliary contacts are included.
- Ring-flange cable entries provide organised cable installation options.
- Top and bottom cable entry provisions support flexible installation layouts.
- Cover interlock with defeatable interlock function supports controlled access.
- Protective earth terminal included for electrical installation.
- Eight cover flanges included for the specified cable entry arrangement.
- Suitable for industrial motor isolation, machinery maintenance and electrical distribution applications.
Key Features
- ABB OT250KLRR6TZ enclosed safety switch-disconnector.
- 250 A rated current.
- 6-pole switching configuration.
- IP65 enclosure protection rating.
- Steel sheet enclosure with grey finish.
- Black pistol-grip operating handle.
- I-O / ON-OFF manual switching operation.
- AC-23A motor switching power: 132 kW at 415 V AC.
- AC-23A motor switching power: 200 kW at 690 V AC.
- AC-23A operational current: 250 A at 415 V AC.
- AC-23A operational current: 250 A at 690 V AC.
- 4 NO + 2 NC auxiliary contacts included.
- Auxiliary contacts wired to terminal blocks.
- Eight ring-flange cable openings per side.
- Top and bottom cable entry arrangement.
- Eight cover flanges included.
- Cover interlock and defeatable interlock included.
- Protective earth terminal included.
- 800 × 800 × 230 mm enclosure dimensions.
- 42 kg catalogue weight.
Technical Specifications
- Manufacturer: ABB
- Series: OT Enclosed Safety Switches
- Model: OT250KLRR6TZ
- ABB order code: OT250KLRR6TZ
- ABB manufacturer product ID: 1SCA022338R7490
- Product group: 311019 – Metal Enclosed (Loadbreak)
- Product type: Steel enclosed safety switch-disconnector
- Rated current: 250 A
- Number of poles: 6
- Switching arrangement: Six-pole
- Operating positions: I-O / ON-OFF
- Operating method: Manual
- AC-23A motor switching power at 415 V AC: 132 kW
- AC-23A operational current at 415 V AC: 250 A
- AC-23A motor switching power at 690 V AC: 200 kW
- AC-23A operational current at 690 V AC: 250 A
- Enclosure protection rating: IP65
- Enclosure material: Steel sheet
- Enclosure colour: Grey
- Operating handle: Black pistol-grip handle
- Enclosure cover: Interlocked
- Interlock override: Defeatable interlock function
- Auxiliary contacts included: 4 NO + 2 NC
- Maximum auxiliary contact configuration: 4 NO + 2 NC
- Auxiliary contact wiring: Wired to terminal blocks
- Protective earth terminal: Included
- Cable entry type: Ring-flange
- Cable entry positions: Top and bottom
- Cable openings: 8 ring-flange openings per side
- Cover flanges included: 8
- Cable entry knock-out diameters: 10 mm, 12.5 mm, 20.5 mm, 25.5 mm and 32.5 mm
- Enclosure height: 800 mm
- Enclosure width: 800 mm
- Enclosure depth: 230 mm
- Dimensions (H × W × D): 800 × 800 × 230 mm
- Catalogue weight: 42 kg
- Primary function: Local electrical isolation and load-break switching
Industrial Safety Isolation for High-Power Motors and Machinery
The ABB OT250KLRR6TZ provides a manually operated means of disconnecting electrical equipment from its power supply. Enclosed safety switch-disconnectors are commonly installed close to industrial machinery to establish a clearly identifiable local isolation point for inspection, servicing and maintenance.
Its six-pole configuration makes the OT250KLRR6TZ suitable for electrical applications requiring coordinated disconnection of six conductors. The precise switching arrangement must be selected according to the connected equipment, circuit design and applicable electrical installation requirements.
With an AC-23A motor switching capability of 132 kW at 415 V AC and 200 kW at 690 V AC, the switch is relevant to appropriately rated industrial motor and inductive-load applications. Final selection must consider the operating voltage, load current, utilisation category, starting conditions and short-circuit protection requirements.
The included 4 NO + 2 NC auxiliary contacts can be integrated into compatible control and indication circuits. These contacts are wired to terminal blocks, supporting connections for electrical interlocking, status indication and associated machinery control functions. Auxiliary contacts do not replace the main power isolation function.
The IP65 steel enclosure protects the switching equipment against dust ingress and low-pressure water jets when correctly installed. Its ring-flange cable entry system provides eight cable openings per side, with entry arrangements at the top and bottom. Suitable cable entry components must be selected and installed to preserve the enclosure's specified protection rating.
The enclosure incorporates a cover interlock and defeatable interlock function to support controlled access. Electrical maintenance must still follow appropriate isolation, lock-off and verification procedures, with suitable upstream protection provided as part of the complete installation.
Typical Applications
- Local isolation of industrial motors and machinery.
- High-power industrial motor installations.
- Manufacturing and production equipment.
- Industrial conveyor and material handling systems.
- Large pump and pumping installations.
- Industrial ventilation and extraction systems.
- Processing and packaging machinery.
- Industrial electrical distribution equipment.
- Machinery requiring six-pole electrical isolation.
- Electrical maintenance and servicing isolation points.
- Industrial automation and motor control installations.
- OEM machinery requiring enclosed safety switching.
- Installations requiring IP65 steel enclosed switch-disconnectors.
