
MK Sentry H4506S AFDD/RCBO 6A DP C Curve 30MA Type A
H4506S
MK Sentry 6A DP C Curve Type A AFDD/RCBO – Advanced Fire & Fault Protection for High Inrush Circuits
The MK Sentry AFDD/RCBO offers superior electrical protection by combining arc fault detection, overcurrent, and earth leakage protection. Designed for circuits with high inrush currents, this device ensures enhanced safety in residential, commercial, and industrial applications by detecting dangerous arcing conditions that may go unnoticed by MCBs and RCDs.
- Arc Fault Detection Technology – Identifies and isolates hazardous arcing faults, reducing the risk of electrical fires.
- C Curve Tripping Characteristic – Suitable for circuits with high inrush currents, such as motors and transformers.
- 6A Rated Current – Ideal for low-power circuits while ensuring comprehensive protection.
- 30mA RCD Sensitivity – Provides additional safety against electric shock and earth leakage faults.
- Double Pole (DP) Switching – Ensures full disconnection of both live and neutral conductors for maximum protection.
- Type A RCD Protection – Detects AC and pulsating DC residual currents for enhanced fault detection.
- Compact & Modular Design – Space-saving unit for easy DIN rail installation in consumer units.
Technical Specification
- Rated Current: 6A
- Breaking Capacity: 6kA
- Tripping Curve: C Curve
- RCD Sensitivity: 30mA
- Type: A
- Number of Poles: Double Pole (DP)
- Mounting: DIN Rail
- Compliance: BS EN 61009, BS EN 62606
✅ Upgrade your electrical safety with the MK Sentry 6A DP C Curve Type A AFDD/RCBO for advanced fire and fault protection!

Trip Type | C Curve Type A |
Product | RCBO |
Type | Single Pole + AFDD |
Current Rating | 6A |
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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