Why Choose the ABB OT630KLAA6T 630A 6-Pole IP54 Steel Enclosed Safety Switch?
The ABB OT630KLAA6T, manufacturer order number 1SCA022277R0310, is a heavy-duty 630 A-class, six-pole steel enclosed safety switch designed for manual load switching and electrical isolation in industrial installations. Part of ABB's Metal Enclosed (Loadbreak) product group, it combines a high-capacity switch-disconnector mechanism with a protective steel enclosure and open cable entries at the top and bottom.
The six-pole switching configuration allows six conductors to be disconnected through one operating mechanism. This makes the OT630KLAA6T particularly useful for appropriately engineered multi-conductor electrical installations requiring more switched poles than a conventional three-pole isolator.
ABB specifies an IP54 steel sheet enclosure, a 570 A AC-23A operational current rating at 380–415 V and a 315 kW AC-23A motor switching rating at 400 V. The enclosure measures 1000 × 800 × 230 mm and is supplied with a black pistol-type operating handle, protective earth terminal and four normally open plus two normally closed auxiliary contacts.
A distinguishing feature is the open top-and-bottom cable-entry arrangement, which allows suitable cable-entry plates and flanges to be selected for the installation. This makes the ABB OT630KLAA6T a practical solution for high-current machinery isolation, industrial power distribution and installations requiring flexible incoming and outgoing cable routes.
Key Advantages
- 630 A-class industrial safety switch for substantial electrical installations.
- Six-pole switching for simultaneous disconnection of six conductors.
- 570 A AC-23A operational current rating at 380–415 V.
- 315 kW AC-23A motor switching capability at 400 V.
- IP54 steel sheet enclosure provides protection against limited dust ingress and water splashes.
- Open top and bottom cable entries offer flexibility for cable routing.
- Compatible cable-entry flanges can be selected to suit installation requirements.
- Black pistol-type operating handle provides external ON/OFF switching.
- Four normally open auxiliary contacts for supplementary control and indication.
- Two normally closed auxiliary contacts for additional control circuit functions.
- Protective earth terminal included for the enclosure earthing arrangement.
- Robust metal enclosed construction for industrial electrical applications.
- Single operating mechanism for all six switched poles.
- High-power motor switching capability across a range of operating voltages.
- ABB OT630 switch-disconnector technology from an established electrical equipment manufacturer.
- Clearly identified manufacturer reference for specification, ordering and replacement.
Key Features
- Manufacturer: ABB.
- Product model: OT630KLAA6T.
- Manufacturer order number: 1SCA022277R0310.
- ABB product group: 311019 – Metal Enclosed (Loadbreak).
- Product family: ABB OT630.
- Product type: Steel enclosed safety switch / load-break switch disconnector.
- Current classification: 630 A.
- Number of switched poles: 6.
- Conventional enclosed thermal current: 460 A.
- Rated operational current, AC-22A at 500 V: 570 A.
- Rated operational current, AC-23A at 380–415 V: 570 A.
- Motor switching power, AC-23A at 230 V: 180 kW.
- Motor switching power, AC-23A at 400 V: 315 kW.
- Motor switching power, AC-23A at 500 V: 400 kW.
- Motor switching power, AC-23A at 690 V: 560 kW.
- Rated operational voltage: Up to 1000 V, subject to applicable switching ratings.
- Ingress protection rating: IP54.
- Enclosure material: Steel sheet.
- Enclosure colour: Grey.
- Cable-entry arrangement: Open top and bottom.
- Cable-entry accessories: Ordered separately.
- Operating handle: Black pistol-type handle.
- Handle indication: I–0 / ON–OFF.
- Auxiliary contacts included: 4 NO + 2 NC.
- Protective earth terminal: Included.
- Enclosure dimensions: 1000 × 800 × 230 mm.
- Product net weight: 46 kg.
Technical Specifications
- Brand: ABB
- ABB order code: OT630KLAA6T
- Manufacturer article number: 1SCA022277R0310
- Manufacturer description: 630A 6P enclosed safety switch, open cable entries, IP54
- ABB product group: 311019 – Metal Enclosed (Loadbreak)
- Product series: ABB OT630
- Product category: Metal enclosed safety switches and load-break switch disconnectors
- Current classification: 630 A
- Number of switched poles: 6
- Conventional enclosed thermal current (Ithe): 460 A
- Rated operational current, AC-22A at 500 V: 570 A
- Rated operational current, AC-23A at 380–415 V: 570 A
- Rated operational power, AC-23A at 230 V: 180 kW
- Rated operational power, AC-23A at 400 V: 315 kW
- Rated operational power, AC-23A at 500 V: 400 kW
- Rated operational power, AC-23A at 690 V: 560 kW
- Rated operational voltage: 1000 V
- Degree of protection: IP54 to IEC 60529
- Enclosure material: Steel sheet
- Enclosure colour: Grey
- Top cable-entry arrangement: Open
- Bottom cable-entry arrangement: Open
- Cable-entry position: Top and bottom
- Suitable cable-entry width: 800 mm
- Suitable cable-entry depth: 230 mm
- Cable-entry flanges: Ordered separately
- Entry-plate fixing profiles: Also used for mounting the safety switch
- Maximum specified cable cross-section: 300 mm², subject to terminal and conductor requirements
- Line terminal arrangement: Top in – bottom out
- Protective earth terminal arrangement: Top in – bottom out
- Operating method: Manual
- Operating handle type: Pistol-type
- Operating handle colour: Black
- Operating handle indication: I–0 / ON–OFF
- Normally open auxiliary contacts: 4
- Normally closed auxiliary contacts: 2
- Total included auxiliary contacts: 4 NO + 2 NC
- Maximum auxiliary contact configuration: 4 NO + 2 NC
- Protective earth terminal: Included
- Pollution degree: 3
- Power loss per pole at rated operating conditions: 25 W
- Enclosure height: 1000 mm
- Enclosure width: 800 mm
- Enclosure depth: 230 mm
- Product net weight: 46 kg
- EAN: 6417019063638
- Relevant switch-disconnector standard: IEC 60947-3
- ABB safety switch catalogue reference: 1SCC340006C0201
High-Current Six-Pole Isolation with IP54 Protection and Open Cable Entries
The ABB OT630KLAA6T is designed for industrial installations where six electrical conductors must be switched through a common operating mechanism. Its six-pole configuration provides additional switching capacity compared with standard three-pole safety switches, making it suitable for specialised multi-conductor applications where the electrical design requires simultaneous isolation.
Although identified as a 630 A-class safety switch, the OT630KLAA6T has a published 460 A conventional enclosed thermal current and a 570 A AC-23A operational current rating at 380–415 V. These figures describe different rating conditions and must not be treated as interchangeable. The correct selection depends on the connected load, operating voltage, utilisation category and thermal requirements of the installation.
For motor switching duties, ABB specifies 315 kW at 400 V AC under the AC-23A utilisation category. Additional published motor switching ratings are 180 kW at 230 V, 400 kW at 500 V and 560 kW at 690 V. AC-23A applies to motor loads and other highly inductive loads, so engineers should assess starting characteristics, operational current and switching frequency before selecting the device.
The steel sheet enclosure provides IP54 protection against limited dust ingress and water splashes. This makes the switch suitable for many industrial plant rooms, factories and machinery installations. However, IP54 is not dust-tight and does not provide the same resistance to water jets as IP65. The installed enclosure must therefore be appropriate for the actual operating environment.
The OT630KLAA6T features open cable entries at both the top and bottom, allowing the installer to select suitable cable-entry plates, glands and flanges according to the incoming and outgoing cable routes. ABB specifies that these accessories must be ordered separately. The entry-plate fixing profiles also contribute to mounting the safety switch, making the correct accessory selection important for both mechanical installation and ingress protection.
The switch is supplied with a black pistol-type operating handle featuring I–0 / ON–OFF indication. It also includes four normally open and two normally closed auxiliary contacts, which can be used for supplementary indication and control functions within an appropriately designed circuit. A protective earth terminal is included for the required enclosure earthing arrangement.
As a manual load-break switch disconnector, the OT630KLAA6T provides switching and isolation functions rather than automatic overload or short-circuit protection. Suitable fuses, circuit breakers or other protective devices must be provided where required. Maintenance personnel must follow approved safe-isolation procedures, including preventing unintended reconnection and verifying absence of voltage before work begins.
Typical Applications
- 630 A-class industrial electrical isolation.
- Six-pole machinery and equipment switching.
- Industrial installations requiring simultaneous disconnection of six conductors.
- 315 kW AC-23A motor switching duties at 400 V, subject to correct electrical selection.
- Manufacturing and production machinery.
- Industrial processing plants.
- High-capacity electrical distribution installations.
- Industrial pumps, fans and compressors.
- Conveyor and material handling systems.
- OEM machinery and electrical equipment manufacturing.
- Installations requiring flexible top-and-bottom cable routing.
- Maintenance isolation points requiring an IP54 steel enclosed six-pole safety switch.
