Why Choose the ABB OT630KLUU6BZ 630A Class 6-Pole IP65 Steel Enclosed Switch Disconnector?
The ABB OT630KLUU6BZ (ABB product ID 1SCA022834R1260) is a heavy-duty 630 A class, 6-pole steel enclosed switch disconnector designed for reliable manual load switching and electrical isolation in demanding industrial low-voltage installations. Part of ABB's established OT enclosed switch-disconnector range, this assembly combines a galvanised sheet-steel enclosure, black pistol-type operating handle, blank cable entry arrangements and IP65 ingress protection.
Designed for industrial applications requiring simultaneous switching of six conductors, the OT630KLUU6BZ provides a 570 A AC-23A operational current rating at 415 V AC and a corresponding 315 kW AC-23A motor-load switching rating. At 690 V AC, ABB's enclosed switch-disconnector catalogue specifies a 570 A operational current rating and 560 kW motor-load switching capability. The six-pole configuration is particularly useful for installations requiring two groups of three conductors to be disconnected by one operating mechanism.
The switch is supplied in a substantial 1000 × 800 × 230 mm steel enclosure with blank top and bottom cable entry areas. Its galvanised construction and polyester coating provide robust protection, while the black padlockable pistol handle, interlocked enclosure cover, neutral and protective earth terminals support practical installation and maintenance. With a catalogue unit weight of 52 kg, the OT630KLUU6BZ offers a high-capacity enclosed isolation solution for industrial electrical contractors, machinery manufacturers and power distribution specialists.
Key Advantages
- Six-pole switching and isolation: Allows simultaneous disconnection of six electrical conductors using one operating mechanism.
- OT630 frame construction: Designed for high-current industrial switch-disconnector applications.
- 570 A AC-23A operational current: Suitable for compatible motor-load switching duties at 415 V AC.
- 315 kW AC-23A motor-load rating at 415 V AC: Supports demanding industrial machinery applications.
- 560 kW AC-23A motor-load rating at 690 V AC: Provides high-capacity switching for compatible higher-voltage installations.
- IP65 steel enclosure: Provides dust-tight protection and resistance to water jets when correctly installed.
- Galvanised sheet-steel construction: Provides robust mechanical protection for the switching assembly.
- Polyester-coated enclosure: Supports durability in demanding industrial environments.
- Blank top and bottom cable entries: Allow customised cable gland and conduit positioning.
- Black pistol-type operating handle: Provides clear manual ON/OFF control.
- Padlocking facility: Accommodates up to three padlocks for controlled maintenance isolation.
- Interlocked enclosure cover: Helps restrict normal access while the switch is ON.
- Defeatable cover interlock: Permits controlled access by authorised personnel following appropriate safety procedures.
- Neutral and protective earth terminals included: Support compatible industrial electrical installations.
- Optional auxiliary contacts: Allow switch-position indication and monitoring when suitable accessories are fitted.
- Large enclosure dimensions: Provide space for the six-pole switching assembly and high-current cable terminations.
Key Features
- ABB OT enclosed switch-disconnector series.
- OT630 frame designation.
- Six-pole switching configuration.
- 570 A rated continuous current.
- 570 A AC-23A operational current rating at 415 V AC.
- 570 A AC-23A operational current rating at 690 V AC.
- 315 kW AC-23A operational power rating at 415 V AC.
- 560 kW AC-23A operational power rating at 690 V AC.
- IP65 ingress protection.
- Galvanised sheet-steel enclosure.
- Protective polyester coating.
- Black pistol-type manual operating handle.
- I-O / ON-OFF position indication.
- Padlockable OFF position for up to three padlocks.
- Mechanically interlocked enclosure cover.
- Defeatable cover interlock function.
- Blank cable entry arrangement at the top and bottom.
- Installer-prepared cable openings.
- Suitable for appropriately designed single and parallel cable arrangements.
- Neutral terminal included.
- Protective earth terminals included.
- No auxiliary contacts fitted as standard.
- Maximum auxiliary contact configuration of 4 NO + 2 NC.
- Integrated enclosure pressure-relief provision.
- Enclosure door earthed through its hinges.
- 1000 × 800 × 230 mm enclosure.
- 52 kg catalogue unit weight.
Technical Specifications
- Manufacturer: ABB
- Series: OT Enclosed Switch Disconnectors
- Model: OT630KLUU6BZ
- ABB order code: OT630KLUU6BZ
- ABB product ID: 1SCA022834R1260
- Product group: 311019 – Metal Enclosed (Loadbreak)
- Product type: Steel enclosed load-break switch disconnector
- Frame designation: OT630
- Nominal frame class: 630 A
- Number of poles: 6
- Number of switching assemblies: 1
- Operating positions: I-O / ON-OFF
- Operating arrangement: Front operated
- Operating mechanism: Manual
- Handle type: Pistol-type handle
- Handle colour: Black
- Enclosure material: Galvanised sheet steel
- Enclosure finish: Polyester coating
- Ingress protection: IP65
- Rated continuous current (Iu): 570 A
- Rated operational current AC-22A at 400 V AC: 570 A
- Rated operational current AC-23A at 400–415 V AC: 570 A
- Rated operational current AC-23A at 690 V AC: 570 A
- Maximum motor output AC-23A at 415 V AC: 315 kW
- Maximum motor output AC-23A at 690 V AC: 560 kW
- Maximum rated operational voltage: 1000 V AC
- Rated short-time withstand current (Icw): 20 kA
- Switching function: Manual load-break switching and electrical isolation
- Cable entry configuration: Blank / blank
- Cable entry positions: Top and bottom
- Cable entry preparation: Installer-prepared openings
- Cable glands and flanges: Ordered separately
- Cable arrangement: Suitable for single and parallel cable configurations, subject to approved terminal arrangements
- Neutral terminal: Included
- Protective earth terminals: Included
- Door earthing: Through enclosure hinges
- Cover arrangement: Mechanically interlocked
- Defeatable interlock: Yes
- Padlocking facility: Up to 3 padlocks
- Auxiliary contacts included: 0 NO + 0 NC
- Maximum auxiliary contact configuration: 4 NO + 2 NC
- Enclosure pressure relief: Integrated pressure-relief provision
- Enclosure height: 1000 mm
- Enclosure width: 800 mm
- Enclosure depth: 230 mm
- Catalogue unit weight: 52 kg
- Mounting arrangement: Enclosed surface-mounted assembly
- Country of origin: Finland
- Applicable product standards: IEC 60947-1 and IEC 60947-3
- Ingress protection classification: IEC 60529
Reliable Six-Pole High-Current Isolation for Industrial Electrical Systems
The ABB OT630KLUU6BZ provides a dependable means of manually disconnecting high-current industrial electrical equipment from its power supply. Its six mechanically linked switching poles operate together, allowing six conductors to be disconnected using a single operating handle. This makes it particularly useful for applications involving two groups of three-phase conductors or other appropriately designed six-pole switching arrangements.
Although the model belongs to ABB's OT630 nominal frame class, the enclosed assembly has a 570 A rated continuous current. ABB's enclosed switch-disconnector catalogue also specifies a 570 A AC-23A operational current rating at 415 V AC, corresponding to a maximum motor-load switching capability of 315 kW. At 690 V AC, the catalogue specifies 570 A and 560 kW. The operational current and utilisation category should be used when determining suitability rather than relying solely on the nominal frame designation.
The IP65 galvanised steel enclosure provides substantial mechanical and environmental protection. Its polyester coating helps protect the enclosure in demanding industrial environments, while the IP65 classification provides dust-tight protection and resistance to water jets when all cable entries and enclosure seals are correctly installed.
A distinguishing feature of the OT630KLUU6BZ is its blank top and bottom cable entry arrangement. Rather than supplying predefined cable entry openings, the enclosure allows installers to prepare suitable openings according to the required cable sizes, glands and routing arrangements. This is particularly useful where the six-pole configuration requires several large incoming and outgoing conductors.
The enclosure is designed to accommodate suitable single and parallel cable arrangements, subject to the manufacturer's terminal and connection requirements. Cable glands, flange accessories and other entry components must be selected separately. The blank cable entry areas are also associated with the enclosure's fixing arrangement, so installation preparation must follow ABB's mounting instructions.
The black pistol-type operating handle provides clearly identified ON and OFF positions and supports padlocking with up to three padlocks. This helps operators establish controlled maintenance isolation procedures. The enclosure cover is mechanically interlocked with the operating mechanism, helping restrict normal access to internal connections while the switch is ON.
A defeatable cover interlock is provided for controlled access by authorised personnel under appropriate electrical safety procedures. The enclosure also incorporates pressure-relief provision intended to help manage internal pressure during an electrical fault. These features complement the assembly's protective design but do not eliminate the need for suitable fault protection and safe working practices.
The assembly includes neutral and protective earth terminals, while the enclosure door is earthed through its hinges. The six main switching poles provide the electrical switching function; the neutral terminal is a separate connection provision and should not be assumed to represent an additional switching pole.
No auxiliary contacts are fitted as standard, but compatible accessories can be installed where switch-position indication or control-system feedback is required. ABB's catalogue specifies a maximum auxiliary contact configuration of 4 normally open and 2 normally closed contacts for this model.
As a switch disconnector, the OT630KLUU6BZ provides manual load switching and electrical isolation rather than automatic overload or short-circuit protection. Appropriate upstream protective devices must be selected according to the electrical installation's fault level, connected load and manufacturer's coordination requirements.
Typical Applications
- High-current industrial electrical isolation.
- Six-pole switching in industrial low-voltage systems.
- Simultaneous isolation of two groups of three-phase conductors.
- Industrial machinery with multiple power circuits.
- Large industrial motor installations requiring coordinated multi-pole isolation.
- Industrial power distribution systems.
- Manufacturing plants and production equipment.
- Heavy industrial processing machinery.
- Industrial pumping and compressor installations.
- Conveyor and material handling systems.
- Industrial ventilation and HVAC plant.
- Maintenance isolation for complex electrical equipment.
- Installations requiring customised high-current cable entries.
- Industrial electrical control and distribution assemblies.
- OEM machinery and electrical equipment manufacturing.
