A Type Time Delay RCD – 80A 100mA, 4 Pole (WARTD480-100)
The WARTD480-100 A-Type 100mA Time Delay RCD is a 4 Pole S-Type device rated at 80A, designed for selective upstream protection. Its built-in delay ensures only downstream RCDs disconnect under fault, maintaining continuity on unaffected circuits. Commonly used in three-phase distribution systems, EV charging installations, and renewable projects, it complies...
Read full descriptionThe WARTD480-100 A-Type 100mA Time Delay RCD is a 4 Pole S-Type device rated at 80A, designed for selective upstream protection. Its built-in delay ensures only downstream RCDs disconnect under fault, maintaining continuity on unaffected circuits. Commonly used in three-phase distribution systems, EV charging installations, and renewable projects, it complies fully with BS EN 61008-1 and the 18th Edition Wiring Regulations.
Installer Tip: The 80A 4 Pole model is a versatile mid-range option for three-phase boards. It provides upstream discrimination while handling higher current than 63A models, without oversizing to 100A.
Key Features
- 4 Pole A-Type RCD – disconnects line and neutral conductors
- Time delay (S-Type) – prevents nuisance tripping in coordinated systems
- 80A rated current – balances between domestic/light commercial and full industrial boards
- Sensitivity: 100mA (30mA and 300mA also available)
- DIN-rail mountable – 72mm width
- Durable design: 4000 mechanical / 2000 electrical cycles
- Meets BS EN 61008-1 and 18th Edition Amendment 2
Compare Time Delay RCD Variants
| Model | Poles | Rated Current | Sensitivity | Type |
|---|---|---|---|---|
| WARTD463-100 | 4 Pole | 63A | 100mA | A-Type, Time Delay (S-Type) |
| WARTD480-100 (This Product) | 4 Pole | 80A | 100mA | A-Type, Time Delay (S-Type) |
| WARTD4100-100 | 4 Pole | 100A | 100mA | A-Type, Time Delay (S-Type) |
What’s the WARTD480-100 best used for?
It’s ideal for medium-capacity three-phase distribution boards where selective tripping is required, such as EV hubs, renewable installs, and light industrial boards.
Why pick the 80A model over 63A or 100A?
The 80A balances current handling for mid-size boards – heavier than 63A but without overspecifying to 100A.
Is this device compliant with the 18th Edition regs?
Yes – it meets BS EN 61008-1 and Amendment 2 requirements for time delay RCDs.
Does this provide surge protection too?
No. Always install alongside a Type 2 SPD where surge compliance is required.
- Product Code: WARTD480-100
- Type: A-Type (S-Type) Time Delay RCD
- Rated Current: 80A
- Sensitivity: 100mA (30mA / 300mA also available)
- Poles: 4 Pole
- Voltage: 400V AC, 50Hz
- Breaking Capacity: 6kA
- Mechanical Endurance: 4000 cycles
- Electrical Endurance: 2000 cycles
- Ingress Protection: IP20
- Module Width: 72mm
- Dimensions: 72 × 82 × 70mm
- Standards: BS EN 61008-1
- Terminal Torque: 2.5Nm
The WARTD480-100 is intended for upstream use in coordinated RCD setups. Designed for three-phase boards, it provides selective protection and should never be used as the only RCD on final circuits.
- DIN-rail mountable inside approved enclosures
- Rated for 80A three-phase loads
- Terminal torque: 2.5Nm
- Confirm system discrimination during design and testing
- Installation must be carried out by a qualified electrician
