MK Sentry H7880S 2 Module Double Pole Residual Current Device RCD 80A 30mA 230V Type AC
H7880S
MK Sentry H7880S Double Pole RCD – Type AC, 80A, 30mA, 2 Module for Sentry Consumer Units
The MK Sentry H7880S is a 2 Module Double Pole Residual Current Device (RCD) rated at 80A with a 30mA trip sensitivity. Designed to meet the needs of residential, commercial, and light industrial applications, this RCD offers high-capacity protection against earth leakage faults. Suitable for use in MK Sentry Consumer Units and modular enclosures, it ensures compliance with current safety standards and wiring regulations.
- High-Capacity Earth Fault Protection: 80A rating supports heavier loads while offering 30mA tripping for personal protection.
- Type AC RCD: Detects standard alternating current (a.c.) earth leakage faults, ideal for general-purpose circuits.
- Double Pole Isolation: Disconnects both live and neutral conductors to ensure complete circuit isolation during a fault.
- Positive Contact Status: Provides clear visual indication of contact position in compliance with IEE Wiring Regulations (537.2.2.2 & 537.3.2.2).
- Versatile Applications: Suitable for residential consumer units, small commercial installations, and light industrial boards.
Technical Specification
- Type: Type AC RCD
- Current Rating: 80A
- Tripping Current: 30mA
- Voltage: 230V
- Poles: Double Pole
- Modules: 2
- Standards: BS EN Compliant
- Applications: Residential, commercial, and light industrial
✅ Choose the MK Sentry H7880S for high-capacity RCD protection in demanding installations, with full compliance and dependable safety!

Range | Circpro MK Sentry |
Short Circuit Rating | 6 kA |
Cable Capacity | 50 mm2 |
Sensitivity | 30 mA |
Product | RCD |
Type | RCD |
Ingress Protection | IP40 |
Voltage | 230 V |
Pole Configuration | Double Pole (2P) |
Width | 36 mm |
Depth | 75 mm |
Current Rating | 80A |
Standards | BS EN/IEC 61008 |
Qualifier | |
Rcd Sensitivity | 30 mA |
Number Of Poles | Double Pole (2P) |
Height | 85 mm |
Number Of Modules | 2 |
Delivery Options:
- PRIORITY DELIVERY – Next Working Day (All items in stock and ordered before 3 pm) - £7.08 inc-VAT. (£5.90 ex-VAT)
- Orders Over £100 (before VAT): We offer free standard shipping on all orders shipped to UK mainland addresses
- Orders under £100 (before VAT): Our standard delivery fee to UK mainland addresses is £5.90 ex-VAT (£7.08 inc-VAT)
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12 ex-VAT for all orders (Prices subject to change).
Items requiring specialist shipping:
- Orders containing Solar Panels, Batteries and/or Inverters: Up to 50 qty will be dispatched on a pallet and incur a £120 ex-VAT delivery charge**.
**Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £180 ex-VAT (Prices subject to change).
Contact us if you have any further questions.