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1SCA022475R1340 ABB 630A 4 Pole IP54 Steel Enclosed Manual Changeover Switch
ABB OT630KLUU4C (1SCA022475R1340) is a 630 A four-pole steel enclosed manual changeover switch with IP54 protection, I-0-II operation, blank top and bottom cable entry provisions and a black operating handle for industrial power source selection.
£4,116.39
Why Choose the ABB OT630KLUU4C 630 A 4-Pole Enclosed Changeover Switch?
The ABB OT630KLUU4C (1SCA022475R1340) is a heavy-duty 630 A, four-pole enclosed manual changeover switch designed for selecting between two electrical supply sources in industrial and commercial power distribution systems. Part of ABB's OT enclosed changeover switch range, it combines a high-current switching mechanism with a robust steel enclosure and a manually operated I–0–II changeover function.
Designed for applications requiring controlled selection between normal and alternative supplies, the OT630KLUU4C provides 570 A rated operational current in both AC-22A and AC-23A categories at 415 V AC. Its four-pole configuration supports appropriately designed three-phase and neutral changeover arrangements, including installations where the neutral conductor must be switched alongside the phase conductors.
The OT630KLUU4C features blank top and bottom cable entry provisions and an enclosure measuring 1000 × 800 × 330 mm. The assembly includes a black operating handle with I–0–II indication, neutral and protective earth terminals, and an interlocked enclosure cover. With its IP54 enclosure protection rating, it offers a practical solution for high-current manual source selection in demanding electrical installations.
Key Advantages
- 630 A nominal current rating for high-current industrial power distribution.
- Four-pole changeover configuration supports simultaneous switching of four conductors.
- Manual I–0–II operation provides two supply positions and an intermediate OFF position.
- Open-transition switching disconnects one source before connecting the alternative supply.
- 570 A AC-22A operational current at 415 V AC for appropriately rated electrical loads.
- 570 A AC-23A operational current at 415 V AC supports suitable motor and inductive-load switching duties.
- IP54 steel enclosure provides protection against harmful dust ingress and splashing water.
- Blank top and bottom cable entry provisions allow cable entry arrangements to be configured for the installation.
- Black manual operating handle provides clear I–0–II position indication.
- Interlocked enclosure cover supports controlled access to the switching assembly.
- Neutral and protective earth terminals support appropriate electrical connections.
- Auxiliary contact expansion capability supports additional indication and control requirements.
- Suitable for manual mains and generator changeover applications.
- Provides a dedicated, enclosed source selection point for industrial electrical installations.
Key Features
- ABB OT630KLUU4C enclosed changeover switch.
- 630 A nominal current rating.
- Four-pole switching arrangement.
- I–0–II manual changeover operation.
- Open-transition source switching.
- 570 A AC-22A operational current at 415 V AC.
- 570 A AC-23A operational current at 415 V AC.
- IP54-rated steel enclosure.
- Blank top cable entry provision.
- Blank bottom cable entry provision.
- Black operating handle with I–0–II indication.
- Interlocked enclosure cover with defeatable interlock function.
- Neutral and protective earth terminals included.
- Auxiliary contacts fitted as standard: None.
- Maximum auxiliary contact configuration: 4 NO + 4 NC.
- Enclosure dimensions: 1000 × 800 × 330 mm.
- Catalogue weight: Approximately 81 kg.
- Designed for fixed industrial electrical installations.
Technical Specifications
- Manufacturer: ABB
- Series: OT Enclosed Changeover Switches
- Model: OT630KLUU4C
- ABB order code: OT630KLUU4C
- ABB product ID: 1SCA022475R1340
- Product type: Enclosed manual changeover switch
- Nominal current rating: 630 A
- Number of poles: 4
- Rated operational current AC-22A at 415 V AC: 570 A
- Rated operational current AC-23A at 415 V AC: 570 A
- Rated operational voltage: Up to 1000 V AC
- Changeover positions: I–0–II
- Transition type: Open transition
- Operating method: Manual
- Operating handle colour: Black
- Operating handle indication: I–0–II
- Enclosure material: Steel
- Enclosure protection rating: IP54
- Enclosure cover: Interlocked
- Cover interlock: Defeatable for authorised access
- Top cable entry: Blank
- Bottom cable entry: Blank
- Cable entry arrangement: Blank / Blank
- Auxiliary contacts included: None
- Maximum auxiliary contacts: 4 NO + 4 NC
- Neutral terminal: Included
- Protective earth terminal: Included
- Enclosure height: 1000 mm
- Enclosure width: 800 mm
- Enclosure depth: 330 mm
- Catalogue weight: Approximately 81 kg
- Installation type: Fixed mounting
- ABB product group: Metal Enclosed (Loadbreak)
- Product category: Enclosed Changeover Switches
Reliable 630 A Four-Pole Source Selection with I–0–II Operation
The ABB OT630KLUU4C provides manual selection between two electrical supply sources through a mechanically operated changeover mechanism. In position I, the load is connected to the first supply. Position 0 disconnects the load from both supplies, while position II connects the alternative source. The open-transition switching arrangement prevents intentional simultaneous connection of the two supplies during changeover.
Its four-pole configuration supports electrical systems requiring the switching of three phase conductors and a neutral conductor. This makes the OT630KLUU4C suitable for appropriately designed mains and generator changeover systems, alternative feeder arrangements and industrial distribution installations. Neutral switching requirements must be assessed against the earthing arrangement and applicable electrical regulations.
The IP54 steel enclosure protects the switching assembly against mechanical exposure, harmful dust ingress and splashing water when correctly installed. Unlike open-entry variants, the OT630KLUU4C has blank top and bottom cable entry provisions, allowing suitable cable entry arrangements to be prepared for the installation. Correct cable entry sealing and protective earthing are essential to maintaining the completed enclosure's protection level.
The supplied black I–0–II operating handle provides clear manual source selection, while the interlocked cover supports controlled access to the internal equipment. The switch is supplied without fitted auxiliary contacts but supports additional compatible contacts where switch-position indication or control integration is required.
The OT630KLUU4C is a manual, non-fused changeover switch. It does not automatically detect supply failure or transfer loads between sources, and it does not provide automatic overload or short-circuit protection. Suitable protective devices and electrical interlocking arrangements must be incorporated into the complete installation.
Typical Applications
- Manual mains and generator changeover systems.
- Industrial alternative supply selection.
- High-current three-phase and neutral changeover.
- Commercial and industrial power distribution.
- Backup electrical supply installations.
- Industrial switchboards and distribution equipment.
- Manufacturing and production facilities.
- Large industrial machinery supply arrangements.
- Critical plant with manually selected alternative supplies.
- Electrical infrastructure requiring an intermediate OFF position.
- Fixed steel enclosed changeover installations.
- Industrial electrical systems requiring IP54 enclosure protection.
- Installations requiring configurable blank cable entry provisions.
Technical Specifications
Tick the specs you need, then view products that match.
| Device Type | Enclosed changeover switch | |
|---|---|---|
| Operation | Manual |
Frequently Asked Questions
What is the ABB OT630KLUU4C used for?
The ABB OT630KLUU4C is a 630 A four-pole enclosed manual changeover switch used to select between two electrical supply sources in industrial and commercial power distribution installations.
What is the current rating of the ABB OT630KLUU4C?
The OT630KLUU4C has a 630 A nominal current rating. ABB specifies a rated operational current of 570 A in both AC-22A and AC-23A categories at 415 V AC.
How many poles does the ABB OT630KLUU4C have?
The ABB OT630KLUU4C has four switching poles, allowing four electrical conductors to be switched together through the changeover mechanism.
What does I–0–II operation mean on the ABB OT630KLUU4C?
I–0–II operation provides three positions: supply I connected, both supplies disconnected in position 0, and supply II connected. This allows manual selection between two electrical sources.
Is the ABB OT630KLUU4C an open-transition changeover switch?
Yes. The OT630KLUU4C uses open-transition switching, disconnecting the selected supply before connecting the alternative source.
What is the IP rating of the ABB OT630KLUU4C?
The OT630KLUU4C has an IP54 enclosure protection rating, providing protection against harmful dust ingress and splashing water when the completed installation is correctly assembled and sealed.
What material is the ABB OT630KLUU4C enclosure made from?
The OT630KLUU4C is housed in a steel enclosure designed to provide robust protection for the internal changeover switching assembly.
Does the ABB OT630KLUU4C have open cable entries?
No. The OT630KLUU4C has blank top and bottom cable entry provisions. Suitable cable entry arrangements must be prepared and installed according to the electrical installation requirements.
Does the ABB OT630KLUU4C include an operating handle?
Yes. The OT630KLUU4C includes a black manual operating handle with I–0–II position indication for selecting between the two electrical supply sources.
Does the ABB OT630KLUU4C have an interlocked cover?
Yes. The OT630KLUU4C has an interlocked enclosure cover with a defeatable interlock function, allowing controlled access by appropriately authorised personnel.
Does the ABB OT630KLUU4C include auxiliary contacts?
No auxiliary contacts are fitted as standard. The OT630KLUU4C supports a maximum auxiliary contact configuration of 4 NO + 4 NC using suitable compatible accessories.
Does the ABB OT630KLUU4C include neutral and earth terminals?
Yes. The enclosed changeover switch assembly includes neutral and protective earth terminals for appropriate electrical connections.
What are the dimensions of the ABB OT630KLUU4C?
The enclosure measures 1000 mm high × 800 mm wide × 330 mm deep, with a catalogue weight of approximately 81 kg.
Can the ABB OT630KLUU4C be used for generator changeover?
Yes. The OT630KLUU4C can be incorporated into a manually operated mains and generator changeover arrangement, provided the electrical system is correctly designed and the switch ratings are suitable.
Does the ABB OT630KLUU4C transfer power automatically?
No. The ABB OT630KLUU4C is a manually operated changeover switch. It does not automatically monitor supply availability or transfer the load when a supply fails.
Is the ABB OT630KLUU4C a fused changeover switch?
No. The ABB OT630KLUU4C is a non-fused changeover switch. Suitable overload and short-circuit protective devices must be provided separately.
What is the difference between the ABB OT630KLUU4C and OT630KLAA4C?
Both are 630 A nominal, four-pole enclosed manual changeover switches. The OT630KLUU4C has blank top and bottom cable entry provisions, whereas the OT630KLAA4C has open top and bottom cable entry areas. The appropriate model depends on the required cable entry arrangement.
Trusted by Industrial Electrical and Power Distribution Professionals
ABB OT enclosed changeover switches are designed for electrical contractors, panel builders, industrial maintenance engineers and power distribution specialists requiring dependable manual selection between electrical supply sources. The ABB OT630KLUU4C (1SCA022475R1340) combines a 630 A four-pole switching arrangement, I–0–II operation, IP54 steel enclosure, blank top and bottom cable entry provisions and a black operating handle for demanding industrial and commercial power distribution applications.
