



MK Sentry Circpro H6838S 1 Module Single Pole B Curve Type A RCBO 50A 6kA 30mA
H6838S
1 Module Single Pole B Curve Type A RCBO – Advanced Protection for Electrical Circuits
The 1 Module Single Pole B Curve Type A RCBO provides combined overcurrent and earth fault protection, making it an ideal choice for residential and commercial installations. Designed to detect AC and pulsating DC faults, this RCBO ensures enhanced safety and compliance with modern wiring regulations.
- Type A Protection – Detects AC and pulsating DC residual currents for improved electrical safety.
- B Curve Tripping Characteristic – Suitable for protecting general-purpose circuits against overloads and short circuits.
- 50A Rated Current – Ideal for low-power circuits, such as lighting and control circuits.
- 6kA Breaking Capacity – Provides high fault current protection, meeting industry standards.
- 30mA RCD Sensitivity – Offers additional protection against electric shock and earth faults.
- Single Pole Design – Provides circuit protection while ensuring ease of installation in consumer units.
- Compact & Modular – Space-saving design for seamless integration into modern electrical installations.
Technical Specification
- Rated Current: 50A
- Breaking Capacity: 6kA
- Tripping Curve: B Curve
- RCD Sensitivity: 30mA
- Type: A
- Number of Poles: 1 (Single Pole)
- Mounting: DIN Rail
- Compliance: BS EN 61009
✅ Enhance electrical safety with the 1 Module Single Pole B Curve Type A RCBO for reliable circuit protection!

Range | Circpro MK Sentry |
Trip Type | B Curve Type A |
Short Circuit Rating | 6kA |
Sensitivity | 30 mA |
Product | RCBO |
Type | Single Pole |
Voltage | 230 V |
Pole Configuration | Single Pole (1P) |
Current Rating | 50A |
Rcd Sensitivity | 30 mA |
Number Of Poles | Single Pole (1P) |
Number Of Modules | 1 |
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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