
MK Sentry H4410S AFDD/RCBO 10A DP B Curve Type A 30MA Type A
H4410S
MK Sentry 10A DP B Curve Type A AFDD/RCBO – Advanced Fire & Fault Protection
The MK Sentry AFDD/RCBO provides comprehensive protection against electrical hazards, including arc faults, overcurrent, and earth leakage. Designed for enhanced safety in residential and commercial installations, this device automatically detects dangerous arcing conditions, helping to prevent electrical fires.
- Arc Fault Detection Technology – Identifies and isolates hazardous arcing faults that may go undetected by MCBs and RCDs.
- B Curve Tripping Characteristic – Ideal for general-purpose circuits, protecting against overloads and short circuits.
- 10A Rated Current – Suitable for low-power circuits such as lighting and control applications.
- 30mA RCD Sensitivity – Provides additional protection against electric shock and earth faults.
- Double Pole (DP) Switching – Ensures full disconnection of live and neutral conductors for enhanced safety.
- Type A RCD Protection – Detects AC and pulsating DC residual currents for improved fault detection.
- Compact & Modular Design – Space-saving DIN rail-mounted unit for easy installation in consumer units.
Technical Specification
- Rated Current: 10A
- Breaking Capacity: 6kA
- Tripping Curve: B Curve
- RCD Sensitivity: 30mA
- Type: A
- Number of Poles: Double Pole (DP)
- Mounting: DIN Rail
- Compliance: BS EN 61009, BS EN 62606
✅ Enhance electrical safety with the MK Sentry 10A DP B Curve Type A AFDD/RCBO for advanced fire and fault protection!

Trip Type | B Curve Type A |
Product | RCBO |
Type | Single Pole + AFDD |
Current Rating | 10A |
Number Of Poles | Double Pole (2P) |
Delivery Costs
Our standard delivery charge to UK mainland addresses is £5.90 ex-VAT.
Take advantage of FREE* Delivery when you spend over £100 (per order) ex-VAT.
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12.00 ex-VAT.
Solar Panels, Batteries and Inverters
Due to their size all solar panels, batteries and inverters orders up to 50 qty will be despatched on a pallet and incur a £120** ex-VAT delivery charge.
**£180 ex VAT to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes.
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