



MK Sentry H5920S 1 Module Single Pole B Curve/Type B Miniature Circuit Breaker MCB 20A 6kA
H5920S
Sentry 1 Module Single Pole B Curve MCB – Reliable Circuit Protection for Domestic & Commercial Applications
The Sentry 1 Module Single Pole Miniature Circuit Breaker (MCB) provides essential circuit protection with a B Curve rating, making it ideal for residential and light commercial installations. Designed to safeguard electrical circuits from overloads and short circuits, this MCB ensures safe and reliable operation.
- B Curve Protection – Offers protection against short circuits and overloads, suitable for domestic and light commercial applications.
- 20A Rated Current – Designed to handle up to 20A, providing optimal protection for lighting and other low-power circuits.
- 6kA Breaking Capacity – Ensures safety in case of short circuits, complying with industry standards.
- Single Pole Design – Provides isolation and protection for individual circuits within a distribution board.
- Compact & Modular – Space-saving design for easy installation in consumer units and distribution boards.
Technical Specification
- Rated Current: 20A
- Breaking Capacity: 6kA
- Tripping Curve: B Curve
- Number of Poles: 1 (Single Pole)
- Mounting: DIN Rail
- Compliance: BS EN 60898
✅ Ensure reliable circuit protection with the Sentry 1 Module B Curve MCB for enhanced safety and performance!

Range | Circpro MK Sentry |
Trip Type | B Curve |
Short Circuit Rating | 6kA |
Cable Capacity | 35 mm2 |
Product | MCB |
Type | Single Pole |
Voltage | 230|400 V |
Pole Configuration | Single Pole (1P) |
Width | 18 mm |
Depth | 74 mm |
Current Rating | 20A |
Standards | BS EN 60898 |
Number Of Poles | Single Pole (1P) |
Height | 83 mm |
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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