



MK Sentry H6220S 1 Module Double Pole Contactor 20A
H6220S
MK Sentry H6220S Double Pole Contactor – 20A, 1 Module for Sentry Consumer Units
The MK Sentry H6220S is a 1 Module Double Pole Contactor rated at 20A, designed to automate the switching of larger loads than a standard time switch can handle. Ideal for off-peak applications such as water heaters or storage heaters, this unit fits seamlessly into MK Sentry Consumer Units and compatible modular enclosures.
- Automatic Load Switching: Enables timed or controlled operation of higher current loads such as immersion heaters or off-peak circuits.
- Manual Override: Provides convenient manual ON/OFF operation for temporary control without affecting the automatic function.
- Compact Installation: Fits into a single module space, ideal for space-restricted consumer unit layouts.
- Double Pole Isolation: Simultaneously switches both live and neutral conductors for enhanced electrical safety.
- Installation Note: A blank module (MK H5544S) is required between this contactor and an adjacent MCB over 10A or between two contactors to ensure proper clearance and thermal separation.
Technical Specification
- Type: Double Pole Contactor
- Current Rating: 20A
- Modules: 1
- Operation: Automatic with manual override
- Installation: For MK Sentry Consumer Units and 2- or 4-module enclosures
- Spacer Requirement: Use MK H5544S blank module for proper separation in specified configurations
✅ Use the MK Sentry H6220S for reliable and safe switching of higher loads in off-peak and time-controlled installations!

Switch Position | 1NO+1NC |
Range | Circpro MK Sentry |
Product | Contactors & Time Switches |
Type | Double Pole |
Length | 81 mm |
Voltage | 230|240 V |
Pole Configuration | Double Pole (2P) |
Width | 18 mm |
Depth | 60 mm |
Current Rating | 20A |
Standards | BS EN 61095 |
Number Of Poles | Double Pole (2P) |
Voltage Rating | 230 V |
Rated Current | 20 A |
Number Of Modules | 1 |
Number Of Contacts | 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)
- STANDARD DELIVERY – 2–3 Working Days From Despatch (subject to stock availability) - £4.99 inc-VAT. (£4.16 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.