A Type Time Delay RCD – 63A 100mA, 2 Pole (WARTD263-100)
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WARTD263-100 is a 2 pole A-type 100mA time delay RCD designed for use where two RCDs are installed in series and discrimination is required. Its built-in time delay helps ensure the upstream device only trips when appropriate, allowing the downstream protective device to operate first during a fault. This makes...
WARTD263-100 is a 2 pole A-type 100mA time delay RCD designed for use where two RCDs are installed in series and discrimination is required. Its built-in time delay helps ensure the upstream device only trips when appropriate, allowing the downstream protective device to operate first during a fault.
This makes it well suited to distribution arrangements where selective coordination is needed, including installations connected to EV systems and solar or renewable applications. As an A-type device, it provides residual current protection for AC and pulsating DC components.
Installer Tip: Time delay RCDs are generally used in upstream positions only. They should be selected as part of a coordinated protection strategy where discrimination between devices is required.
Key Features
- 2 pole A-type time delay RCD – WARTD263-100
- 63A rated current
- 100mA sensitivity
- Time delay operation – supports upstream discrimination
- Residual current characteristics: A-type
- Suitable for solar and EV applications
- 6kA rated conditional short-circuit current
- Dimensions: 36 x 82 x 70mm
Compare Time Delay RCD Variants
| Model | Poles | Rated Current | Sensitivity | Type |
|---|---|---|---|---|
| WARTD263-100 (This Product) | 2 Pole | 63A | 100mA | A-Type, Time Delay |
| WARTD280-100 | 2 Pole | 80A | 100mA | A-Type, Time Delay |
| WARTD2100-100 | 2 Pole | 100A | 100mA | A-Type, Time Delay |
| WARTD463-100 | 4 Pole | 63A | 100mA | A-Type, Time Delay |
| WARTD480-100 | 4 Pole | 80A | 100mA | A-Type, Time Delay |
| WARTD4100-100 | 4 Pole | 100A | 100mA | A-Type, Time Delay |
What is a 100mA time delay RCD used for?
It is typically used where two RCDs are installed in series and upstream discrimination is required, so the downstream device trips first during a fault.
Is WARTD263-100 suitable for solar or EV installations?
Yes. The catalogue identifies this time delay RCD range as suitable for solar and EV applications where coordinated protection is required.
Is this a 2 pole device?
Yes. WARTD263-100 is a 2 pole A-type time delay RCD rated at 63A with 100mA sensitivity.
Does this device provide surge protection?
No. This is a time delay RCD only. Surge protection must be provided separately where required.
What is the size of WARTD263-100?
The dimensions are 36 x 82 x 70mm.
- Product Code: WARTD263-100
- Type: A-Type Time Delay RCD
- Rated Current: 63A
- Sensitivity: 100mA
- Poles: 2 Pole
- Rated Operational Voltage: 230/400V
- Frequency: 50Hz
- Rated Conditional Short-Circuit Current: 6kA
- Mechanical Durability: 4000 cycles
- Electrical Durability: 2000 cycles
- Ingress Protection: IP20
- Dimensions: 36 x 82 x 70mm
- Standard: BS EN 61008-1
- Recommended Terminal Torque: 2.5Nm
Time delay RCDs are typically used where two RCDs are installed in series and selective discrimination is required. Installation must be carried out by a qualified electrician.
- Mount on a compatible DIN rail inside a suitable enclosure
- Use as part of a coordinated upstream/downstream protection design
- Apply the recommended terminal torque of 2.5Nm
- Verify correct device coordination during design and commissioning
