2 Pole Type A High Immunity RCD 40A 30mA (WAR240-030)
18th Ed. Compliant
2-Year Warranty
UK Stock
Free Delivery £80+
Secure Payments With
The WAR240-030 is a 2 pole 40A 30mA Type A High Immunity RCD designed for reliable residual current protection in single-phase installations where stable performance and reduced nuisance tripping are important. Whitecliffe lists this range as suitable for EV installations and solar-related applications where modern electronic loads are present. This...
The WAR240-030 is a 2 pole 40A 30mA Type A High Immunity RCD designed for reliable residual current protection in single-phase installations where stable performance and reduced nuisance tripping are important. Whitecliffe lists this range as suitable for EV installations and solar-related applications where modern electronic loads are present.
This Type A RCD detects and responds to sinusoidal residual AC currents and residual pulsating currents up to 6mA. With a compact 2-pole format, 230/400V operational rating and compliance with BS EN 61008-1, it provides a practical solution for compatible consumer units and distribution boards requiring a 40A 30mA high immunity RCD.
The WAR240-030 forms part of the WCED high immunity Type A RCD range, giving installers a practical option for modern single-phase installations involving inverter-driven or electronically sensitive equipment.
Installer note: High immunity RCDs are commonly specified where modern electronic loads may increase the likelihood of unwanted tripping. Always confirm the RCD type, current rating and overall protection arrangement suit the installation design.
- 40A, 2 Pole – suitable for single-phase line and neutral protection
- 30mA residual current sensitivity – additional protection where specified
- High immunity design – suited to modern electronic loads and inverter-driven systems
- Type A residual current characteristics – detects sinusoidal AC and pulsating DC residual currents
- 230/400V operational rating – suitable for compatible single-phase systems
- Compact 36 × 82 × 70mm format – practical DIN rail installation size
- BS EN 61008-1 compliant – recognised RCD standard
Compare High Immunity RCD Variants
| Model | Poles | Rating | Immunity |
|---|---|---|---|
| WAR440-030 | 4 | 40A | High Immunity |
| WAR480-030 | 4 | 80A | High Immunity |
| WAR4100-030 | 4 | 100A | High Immunity |
| WAR240-030 (This Product) | 2 | 40A | High Immunity |
| WAR263-030 | 2 | 63A | High Immunity |
| WAR280-030 | 2 | 80A | High Immunity |
| WAR2100-030 | 2 | 100A | High Immunity |
High Immunity Type A RCDs for Modern Installations
A high immunity Type A RCD is commonly used where modern electrical systems contain inverter-driven or electronically sensitive equipment that may increase the likelihood of unwanted tripping.
The WAR240-030 is suited to compatible EV-related, solar-related and modern domestic installations where a 40A 30mA Type A RCD is specified as part of the protection arrangement.
Its compact 2-pole format makes it suitable for installation inside compatible consumer units and distribution boards where reliable residual current protection is required.
What is the WAR240-030?
The WAR240-030 is a 2 pole 40A 30mA Type A high immunity RCD designed for residual current protection in compatible single-phase installations.
Is this RCD suitable for EV or solar installations?
Whitecliffe lists this high immunity Type A RCD range as suitable for EV and solar-related applications where modern electronic loads are present.
What type of residual current does this RCD detect?
The WAR240-030 detects sinusoidal residual AC currents and residual pulsating currents up to 6mA in accordance with its Type A characteristics.
What does high immunity mean on an RCD?
High immunity designs are intended to better resist unwanted tripping caused by transient conditions and electronically noisy environments.
What size is the WAR240-030?
The listed dimensions are 36 × 82 × 70mm.
Is this a 2 pole RCD?
Yes. The WAR240-030 is a 2 pole RCD designed for line and neutral protection in suitable single-phase systems.
- Product Code: WAR240-030
- Product Type: Type A High Immunity RCD
- Poles: 2
- Rated Current: 40A
- Sensitivity: 30mA
- Rated Operational Voltage: 230/400V
- Residual Current Characteristics: Type A
- Mode: Electro-magnetic
- Rated Conditional Short-Circuit Current: 6kA
- Mechanical Durability: 4000 cycles
- Electrical Durability: 2000 cycles
- IP Degree of Protection: IP20
- Ambient Temperature: -25°C to +40°C
- Dimensions (W × H × D): 36 × 82 × 70mm
- Standards: BS EN 61008-1 / BS EN 60529
The WAR240-030 Type A high immunity RCD should be installed by a qualified electrician in accordance with current wiring regulations, manufacturer guidance and the installation design.
- Suitable for compatible single-phase installations requiring a 2 pole 40A 30mA Type A RCD
- Confirm the device rating and residual current characteristics suit the installation
- Check all terminations and polarity before energising
- Test the RCD during commissioning and routine inspection
- Install inside a suitable enclosure or consumer unit
Specification note: This Type A RCD detects sinusoidal AC and pulsating DC residual currents. Always confirm the protection arrangement matches the installation requirements and connected equipment.
