BG Electrical 40A 4 Pole IP65 Rotary Isolator – Anthracite Grey | CPRSD440AG

Weatherproof 40A Four-Pole Rotary Isolation Switch for Heat Pumps, Hot Tubs and EV Chargers

The BG Electrical CPRSD440AG 40A 4 Pole IP65 Rotary Isolator in Anthracite Grey is a robust, weather-resistant electrical isolation switch designed for domestic, commercial and light industrial applications.

Manufactured by BG Electrical, the CPRSD440AG provides a convenient means of disconnecting electrical equipment from its power supply for maintenance, servicing and safe working procedures.

Featuring a contemporary anthracite grey enclosure with a contrasting black rotary operating handle, this isolator is designed to complement modern building exteriors and outdoor electrical equipment.

The anthracite grey finish is particularly suited to installations alongside Sync Energy EV chargers, helping create a coordinated appearance.

Rated at 40A, the CPRSD440AG provides a higher current rating than the 32A CPRSD432AG variant, making it suitable for appropriately designed circuits requiring a 40A isolation switch.

The isolator features a four-pole 3+N switching arrangement, allowing the simultaneous disconnection of three phase conductors and a neutral conductor in compatible electrical installations.

Its IP65-rated enclosure provides protection against dust ingress and water jets, making it suitable for correctly installed outdoor applications.

The enclosure is manufactured from durable polycarbonate and has an IK10 mechanical impact resistance rating, providing robust protection against external impacts.

A key safety feature is the padlockable rotary handle, allowing the isolator to be secured in the OFF position with a suitable padlock.

The unit also incorporates a switch-interlocked lid, which prevents the enclosure cover from being opened while the switch is in the ON position.

For convenient installation, the enclosure includes four M20/M25 cable-entry knockouts, with two positioned at the top and two at the bottom.

Additional installation features include captive retained cover screws, captive terminal screws, backed-out terminal screws and integrated earth terminals.

The CPRSD440AG has a maximum cable capacity of 16mm² and a specified terminal tightening torque of 1.2Nm.

With dimensions of 176mm high × 116mm wide × 136mm deep, the isolator provides a practical surface-mounted solution for exterior electrical installations.

Suitable for compatible air source heat pumps, hot tubs, EV charging equipment and other fixed electrical systems, the BG Electrical CPRSD440AG 40A Rotary Isolator combines reliable electrical isolation, weather-resistant construction and modern styling.

Key Features

• BG Electrical 40A 4 Pole IP65 Rotary Isolator
• Manufacturer Part Number: CPRSD440AG
• Package Reference: CPRSD440AG-01
• Brand: BG Electrical
• Product Type: AC Rotary Isolator / Switch Disconnector
• Rated Current: 40A
• Number of Poles: 4
• Pole Configuration: 3+N
• Switch Operation: Rotary
• Enclosure Colour: Anthracite Grey
• Colour Reference: RAL 7016
• Operating Handle Colour: Black
• Ingress Protection Rating: IP65
• Mechanical Impact Rating: IK10
• Operational Voltage: 230–415V AC
• Rated Voltage (Ue): 440V
• Rated Insulation Voltage (Ui): 690V
• Rated Short-Time Withstand Current (Icw): 800A
• Utilisation Category: AC-23A
• AC-22A Rating: 40A
• AC-23A Rating: 40A
• AC-3 Rating: 32A
• AC-23A Power Rating: 15kW
• Padlockable Handle: Yes
• Lock-Off Facility: Yes
• Lid Interlock: Yes
• Switch Position Indication: ON / OFF / LOCKED
• Cable Entry Type: Knockout
• Cable Entry Sizes: M20/M25
• Number of Cable Entries: 4
• Cable Entry Positions: 2 Top / 2 Bottom
• Maximum Cable Size: 16mm²
• Terminal Tightening Torque: 1.2Nm
• Captive Cover Screws: Yes
• Captive Terminal Screws: Yes
• Backed-Out Terminal Screws: Yes
• Earth Terminals Included: Yes
• Terminal Type: Screw
• Wall Fixing Positions: 4
• Electrical Endurance: 3,000 Operations
• Mechanical Endurance: 15,000 Operations
• Operating Temperature: -25°C to +70°C
• Product Height: 176mm
• Product Width: 116mm
• Product Depth: 136mm
• Construction Material: Polycarbonate
• Product Standard: IEC 60947-3
• Suitable for domestic, commercial and light industrial applications
• Suitable for appropriately designed outdoor installations
• Colour coordinated with Sync Energy EV charging equipment
• Suitable for compatible air source heat pump installations
• Suitable for compatible hot tub installations

40A Rated Electrical Isolation

The BG Electrical CPRSD440AG is rated at 40 amps, providing a practical isolation solution for appropriately designed electrical circuits.

Its 40A current rating makes it suitable for applications requiring a higher-rated isolator than the 32A CPRSD432AG model.

Benefits of the 40A Rating

• Suitable for compatible 40A electrical circuits
• Practical for fixed electrical equipment
• Suitable for commercial and domestic installations
• Useful for appropriate heat pump installations
• Suitable for compatible EV charging systems
• Practical for light industrial applications
• Designed for professional electrical isolation

Electrical Ratings

• Rated Operating Current: 40A
• Operational Voltage: 230–415V AC
• Rated Voltage: 440V
• Rated Insulation Voltage: 690V
• AC-22A Rating: 40A
• AC-23A Rating: 40A
• AC-3 Rating: 32A

Important: The isolator must be selected according to the connected equipment's current demand, switching duty and electrical installation requirements.

A 40A rated isolator is not automatically suitable for every 40A circuit or connected load.

Four-Pole 3+N Switching Arrangement

The BG CPRSD440AG incorporates a four-pole 3+N switching arrangement.

This allows the simultaneous disconnection of three phase conductors and the neutral conductor in a correctly designed electrical circuit.

Benefits of Four-Pole Isolation

• Simultaneous disconnection of four conductors
• Suitable for compatible three-phase installations
• Practical for equipment maintenance
• Convenient rotary switching operation
• Supports safe electrical isolation procedures
• Suitable for fixed electrical equipment
• Useful in commercial and light industrial installations

Typical Applications

Four-pole isolation may be required for:

• Three-phase electrical equipment
• Commercial plant
• Air source heat pumps
• Industrial machinery
• Building services equipment
• Electrical distribution systems

Important: The suitability of four-pole isolation depends on the electrical supply arrangement and connected equipment.

Protective earth conductors must never be switched or disconnected by the isolator.

IP65 Weatherproof Protection

The BG CPRSD440AG features an IP65-rated enclosure.

This makes the isolator suitable for appropriately installed outdoor applications where protection against dust and water ingress is required.

IP65 Protection Explained

IP6X – Dust Protection

The first digit, 6, indicates a dust-tight enclosure.

IPX5 – Water Protection

The second digit, 5, indicates protection against water jets under the applicable test conditions.

Benefits of IP65 Protection

• Dust-tight enclosure
• Protection against water jets
• Suitable for appropriately installed outdoor locations
• Practical for building exteriors
• Suitable for heat pump installations
• Suitable for EV charging equipment
• Durable weather-resistant construction

Maintaining the IP65 Rating

The enclosure's ingress protection depends on correct installation.

Appropriate cable glands, seals and cable-entry arrangements must be used.

Important: IP65 does not mean that the isolator is suitable for immersion in water.

IK10 High-Impact Resistance

The BG Electrical CPRSD440AG features an IK10 mechanical impact resistance rating.

IK10 indicates resistance to a 20-joule mechanical impact under standardised test conditions.

Benefits of IK10 Protection

• High mechanical impact resistance
• Robust enclosure construction
• Suitable for demanding environments
• Practical for outdoor electrical equipment
• Useful for commercial installations
• Helps protect internal switching components

The IK10 rating provides additional durability for installations where accidental mechanical impacts may occur.

Padlockable Black Rotary Handle

The BG CPRSD440AG incorporates a black padlockable rotary operating handle.

The handle provides clear ON and OFF switching positions.

A suitable padlock can be used to secure the switch in the OFF position as part of an appropriate electrical isolation procedure.

Benefits of the Padlockable Handle

• Supports safe working isolation
• Helps prevent unauthorised switching
• Practical for maintenance operations
• Suitable for servicing fixed electrical equipment
• Clear rotary operating mechanism
• Convenient external handle
• Suitable for professional electrical installations

Lock-Off Safety

Electrical equipment should be safely isolated before maintenance or servicing.

The padlockable handle supports lock-off procedures when used with suitable equipment and safe working practices.

Important: A padlock is not confirmed as included with the product.

The padlockable handle does not replace the need to verify that the electrical supply has been safely isolated.

Switch-Interlocked Lid

The BG Electrical CPRSD440AG incorporates a switch-interlocked enclosure lid.

This feature prevents the enclosure cover from being opened while the rotary switch is in the ON position.

Benefits of the Lid Interlock

• Helps prevent access while switched ON
• Supports safe maintenance procedures
• Provides an additional safety feature
• Suitable for professional electrical installations
• Practical for outdoor equipment isolation

Important: The lid interlock is not a substitute for safe isolation, lock-off and verification that the circuit is dead.

Contemporary Anthracite Grey Finish

The BG CPRSD440AG features a modern anthracite grey enclosure, finished in RAL 7016.

This provides a contemporary alternative to traditional light-grey industrial isolators.

Benefits of the Anthracite Grey Finish

• Modern exterior appearance
• Suitable for contemporary buildings
• Coordinates with dark exterior fittings
• Complements Sync Energy EV chargers
• Contrasting black rotary handle
• Practical for visible outdoor installations
• Suitable for residential and commercial properties

The anthracite grey finish is particularly useful where the isolator will be installed in a visible exterior location.

Designed to Complement Sync Energy EV Chargers

The BG Electrical CPRSD440AG has been designed with a colour scheme that complements Sync Energy EV charging equipment.

This makes it a practical choice for EV charging installations where a coordinated exterior appearance is desirable.

Benefits for EV Charging Installations

• Anthracite grey colour coordination
• Suitable for compatible EV charging circuits
• IP65 weather-resistant enclosure
• Padlockable isolation facility
• Robust IK10 construction
• Practical outdoor mounting
• Professional appearance

Important: The isolator must be selected according to the EV charger's electrical requirements, circuit rating and manufacturer's installation instructions.

Suitable for Air Source Heat Pump Installations

The BG CPRSD440AG is suitable for consideration in air source heat pump installations requiring a local electrical isolation switch.

Heat pumps often require an accessible means of electrical isolation for servicing and maintenance.

The IP65 enclosure makes this isolator relevant to outdoor heat pump installations.

Benefits for Heat Pump Applications

• Suitable for appropriately rated heat pump circuits
• Outdoor IP65 enclosure
• Padlockable rotary handle
• Four-pole switching arrangement
• IK10 impact resistance
• Practical surface-mounted construction
• Contemporary anthracite grey finish

Important: Heat pump electrical requirements vary by manufacturer and model.

The isolator's current rating, pole configuration and switching characteristics must be checked against the heat pump manufacturer's instructions.

Suitable for Hot Tub Electrical Installations

The BG Electrical CPRSD440AG can also be considered for suitable hot tub and spa electrical installations.

Hot tubs commonly require a dedicated electrical supply and appropriate isolation arrangements.

Benefits for Hot Tub Applications

• IP65 weather-resistant enclosure
• Suitable for appropriately designed outdoor installations
• Padlockable handle
• Robust IK10 construction
• Practical rotary operation
• Four-pole switching arrangement
• Modern anthracite grey finish

Important: Hot tub electrical installations are subject to specific safety requirements.

The isolator must be installed at an appropriate location and selected according to the equipment manufacturer's instructions and applicable BS 7671 requirements.

Four M20/M25 Cable Entry Knockouts

The BG CPRSD440AG features four cable-entry knockouts.

These are arranged to provide convenient cable access from the top and bottom of the enclosure.

• Number of Cable Entries: 4
• Cable Entry Type: Knockout
• Cable Entry Sizes: M20/M25
• Top Entries: 2
• Bottom Entries: 2

Benefits of Multiple Cable Entries

• Flexible cable routing
• Suitable for different installation layouts
• Practical for surface-mounted applications
• Supports neat cable entry arrangements
• Useful for outdoor electrical equipment installations
• Compatible with appropriately selected cable glands

Important: Suitable cable glands and seals must be used to maintain the IP65 rating.

Cable glands are not confirmed as included.

16mm² Maximum Cable Capacity

The BG Electrical CPRSD440AG has a specified maximum cable capacity of 16mm².

This provides flexibility for appropriately sized conductors within the manufacturer's terminal requirements.

• Maximum Cable Size: 16mm²
• Terminal Type: Screw
• Terminal Tightening Torque: 1.2Nm
• Captive Terminal Screws: Yes
• Backed-Out Terminal Screws: Yes

Benefits

• Practical for professional electrical installation
• Suitable for compatible conductor sizes
• Screw terminal connections
• Captive terminal screw arrangement
• Backed-out screws simplify initial termination

Important: The maximum cable capacity does not determine the correct conductor size for an installation.

Cable sizing must be based on the circuit design, installation method, load current and applicable wiring regulations.

Captive Cover Screws and Integrated Earth Terminals

The BG CPRSD440AG incorporates installation-friendly features designed to simplify electrical termination and maintenance.

These include:

• Captive retained cover screws
• Captive terminal screws
• Backed-out terminal screws
• Integrated earth terminals

Benefits

• Helps prevent loss of cover screws
• Practical during installation
• Convenient for maintenance access
• Supports efficient electrical termination
• Reduces the need to remove loose screws
• Suitable for professional electrical work

The integrated earth terminals support appropriate protective conductor connections.

Important: Protective earth continuity must be maintained in accordance with the electrical installation design.

15,000 Mechanical Operations

The BG CPRSD440AG is specified with a mechanical endurance of 15,000 operations.

Mechanical endurance refers to the number of operating cycles the switching mechanism is designed to withstand under the applicable test conditions.

Mechanical Endurance

15,000 Operations

This provides a useful indication of the switch's mechanical durability.

3,000 Electrical Operations

The isolator is also specified with an electrical endurance of 3,000 operations.

Electrical endurance relates to switching performance under defined electrical test conditions.

Electrical Endurance

3,000 Operations

Benefits of the Endurance Ratings

• Defined mechanical durability
• Specified electrical operating life
• Suitable for professional electrical equipment
• Practical for maintenance isolation applications
• Supports reliable long-term use

Actual service life depends on operating conditions, load characteristics and correct installation.

Surface-Mounted Enclosure

The BG Electrical CPRSD440AG is designed for fixed installation on a suitable mounting surface.

The enclosure incorporates four wall-fixing positions.

Mounting Features

• Surface-mounted enclosure
• Four wall-fixing positions
• Suitable for appropriate outdoor installations
• Practical for building exteriors
• Suitable for plant equipment isolation
• Compatible with suitable mounting hardware

Fixing Screws

Fixing screws are not supplied.

Appropriate fixings must be selected for the mounting surface and installation conditions.

Compact Enclosure Dimensions

The BG CPRSD440AG has the following overall dimensions:

• Height: 176mm
• Width: 116mm
• Depth: 136mm

Installation Planning

Before installation, consider:

• Available mounting space
• Access to the rotary handle
• Cable entry positions
• Required cable bending space
• Lock-off access
• Suitable wall fixings
• Clearance for enclosure maintenance
• Environmental exposure

The dimensions should be considered when selecting the installation location.

Suitable for Domestic Installations

The BG Electrical CPRSD440AG is designed for appropriate domestic electrical applications.

Domestic Applications

• Air Source Heat Pumps
• EV Charging Equipment
• Hot Tubs
• Outdoor Electrical Equipment
• Fixed Building Services
• Residential Refurbishments
• New-Build Homes
• Domestic Plant Equipment

All applications must be compatible with the isolator's electrical ratings.

Suitable for Commercial and Light Industrial Applications

The BG CPRSD440AG can also be used in appropriately designed commercial and light industrial installations.

Typical Applications

• Commercial Heat Pumps
• Electrical Plant Equipment
• Light Industrial Machinery
• Commercial EV Charging
• Building Services Installations
• Outdoor Fixed Equipment
• Workshops
• Commercial Refurbishments
• Maintenance Isolation Points

The isolator must be selected according to the connected equipment's requirements and the electrical installation design.

Designed for Professional Electrical Installation

The BG Electrical CPRSD440AG must be installed by a suitably qualified electrical professional.

Correct installation is essential to maintain the enclosure's ingress protection and ensure safe electrical isolation.

Installation Considerations

• Confirm the 40A current rating
• Verify the supply voltage
• Confirm the required pole configuration
• Check the equipment's electrical load
• Verify the switching duty and utilisation category
• Select appropriate cable sizes
• Apply the specified terminal tightening torque
• Use suitable M20/M25 cable glands
• Maintain the IP65 enclosure rating
• Use appropriate wall fixings
• Verify the lid interlock operation
• Confirm the lock-off arrangement
• Complete inspection and testing

Important Installation Guidance

Installation must comply with:

• Current BS 7671 wiring regulations
• The manufacturer's installation instructions
• Applicable electrical isolation requirements
• Equipment-specific installation instructions
• Relevant outdoor electrical installation requirements
• Appropriate inspection and testing procedures

The isolator must be correctly rated for the connected equipment and circuit.

General Product Information

• Brand: BG Electrical
• Manufacturer Part Number: CPRSD440AG
• Package Reference: CPRSD440AG-01
• Product Name: 40A 4 Pole IP65 Rotary Isolator – Anthracite Grey
• Product Type: AC Rotary Isolator
• Switch Style: Rotary
• Number of Poles: 4
• Pole Configuration: 3+N
• Colour: Anthracite Grey
• Colour Reference: RAL 7016
• Handle Colour: Black
• Installation Type: Surface Mounted
• Application: Electrical Equipment Isolation

• Rated Operating Current: 40A
• Operational Voltage: 230–415V AC
• Rated Voltage (Ue): 440V
• Rated Insulation Voltage (Ui): 690V
• Rated Short-Time Withstand Current (Icw): 800A
• Number of Poles: 4
• Pole Configuration: 3+N
• Switch Operation: Rotary
• AC-22A Rating: 40A
• AC-23A Rating: 40A
• AC-3 Rating: 32A
• AC-23A Power Rating: 15kW
• Utilisation Category: AC-23A
• Maximum Cable Size: 16mm²
• Terminal Tightening Torque: 1.2Nm
• Terminal Type: Screw
• Captive Terminal Screws: Yes
• Backed-Out Terminal Screws: Yes
• Electrical Endurance: 3,000 Operations
• Mechanical Endurance: 15,000 Operations

• Enclosure Material: Polycarbonate
• Enclosure Colour: Anthracite Grey
• Colour Reference: RAL 7016
• Handle Colour: Black
• Ingress Protection Rating: IP65
• Mechanical Impact Rating: IK10
• Enclosure Type: Insulated
• Mounting Method: Surface Mounted
• Wall Fixing Positions: 4
• Fixing Screws Supplied: No
• Captive Cover Screws: Yes
• Lid Interlock: Yes
• Earth Terminals Included: Yes

Switching and Safety Features

• Switch Type: Rotary Isolator
• Number of Poles: 4
• Pole Configuration: 3+N
• Padlockable Handle: Yes
• Lock-Off Facility: Yes
• Padlock Supplied: Not Confirmed
• Fitted Lock: No
• Switch Indicator Positions: ON / OFF / LOCKED
• Switch Indicator Colour: Black
• Interlocked Cover: Yes
• Cover Opening While ON: Prevented by Interlock

• Cable Entry Type: Knockout
• Number of Cable Entries: 4
• Cable Entry Sizes: M20/M25
• Top Cable Entries: 2
• Bottom Cable Entries: 2
• Maximum Cable Size: 16mm²
• Terminal Tightening Torque: 1.2Nm
• Cable Glands Included: Not Confirmed

Dimensions

• Height: 176mm
• Width: 116mm
• Depth: 136mm
• Dimensions: 176mm H × 116mm W × 136mm D
• Wall Fixing Positions: 4

• IP Rating: IP65
• Dust Protection: Dust Tight
• Water Protection: Protected Against Water Jets
• IK Rating: IK10
• Impact Resistance: 20 Joules
• Operating Temperature: -25°C to +70°C
• Outdoor Suitability: Yes, When Correctly Installed
• Electrical Endurance: 3,000 Operations
• Mechanical Endurance: 15,000 Operations

Construction and Materials

• Enclosure Material: Polycarbonate
• Enclosure Colour: RAL 7016 Anthracite Grey
• Handle Colour: Black
• Enclosure Flame Retardancy: V2
• Switch Body Flame Retardancy: V0
• Enclosure Protection: IP65
• Mechanical Protection: IK10

Standards and Compliance

• Product Standard: IEC 60947-3
• Installation Requirements: Applicable BS 7671 Requirements
• Outdoor Installation: Subject to Manufacturer's Instructions
• Electrical Isolation: Suitable for Appropriately Designed Circuits

Suitable Applications

The BG Electrical CPRSD440AG 40A 4 Pole IP65 Rotary Isolator is suitable for appropriately designed installations involving:

• Air Source Heat Pumps
• Heat Pump Electrical Isolation
• EV Charging Equipment
• Sync Energy EV Charger Installations
• Hot Tubs
• Spa Equipment
• Outdoor Electrical Equipment
• Domestic Electrical Installations
• Commercial Electrical Installations
• Light Industrial Applications
• Building Services Equipment
• Plant Room Equipment
• Workshops
• Fixed Electrical Machinery
• Residential Refurbishments
• New-Build Properties
• Outdoor Electrical Isolation
• Professional Electrical Contracting Projects

All applications are subject to the isolator's electrical ratings, switching duty, equipment compatibility and applicable installation requirements.

Why Choose the BG Electrical CPRSD440AG?

The BG Electrical CPRSD440AG 40A 4 Pole IP65 Rotary Isolator combines reliable electrical isolation with robust outdoor protection and contemporary styling.

Its 40A rated current provides a higher-capacity option than the 32A CPRSD432AG model.

The four-pole 3+N switching arrangement makes it suitable for compatible single-phase and three-phase electrical installations.

The IP65-rated enclosure protects against dust ingress and water jets, making the unit suitable for appropriately installed outdoor applications.

An IK10 mechanical impact rating provides additional protection against accidental mechanical impacts.

The black padlockable handle supports safe working isolation procedures, while the lid interlock prevents the enclosure cover from being opened when the switch is in the ON position.

The isolator's anthracite grey RAL 7016 finish has been designed to complement modern building exteriors and Sync Energy EV charging equipment.

Its four M20/M25 cable-entry knockouts provide flexible cable access, while captive cover and terminal screws support convenient installation.

With a maximum cable capacity of 16mm², a specified mechanical endurance of 15,000 operations and electrical endurance of 3,000 operations, the product is designed for professional electrical isolation applications.

The BG Electrical CPRSD440AG Anthracite Grey Rotary Isolator is a practical choice for compatible heat pump, hot tub, EV charging and other fixed electrical equipment installations.