Circpro MK Sentry H4420S AFDD/RCBO 20A DP Curve B 30MA Type A
H4420S
The MK Sentry AFDDs provide protection against fires caused by electrical arcing resulting from faulty wiring or poor connections. The AFDD analyses current/voltage characteristics to identify arcing and automatically trip to isolate the circuit. AFDDs detect arcing faults which can be undetected by MCBs and RCDs.
Features
- Meets BS EN and IET Wiring Regulation requirements
- Single module
- DP switching
- MCB Curve B
- RCD Type A
- 6000A breaking capacity
- Reduces the risk of fire
- Positive status indication
Standards and approvals
- Product Standard: BS EN62606, BS EN61009-1
- Product Certification: UKCA/CE
- Degree of Pollution: 2
Technical Specification
Electrical
- Current rating- 20A
- Operating voltage- 285V AC
- Rated short circuit capacity- 6000A
- MCB Curve- B
- RCD operation- Type A 30mA tripping current
- Surge current resistance- 3000A @8/20s μs
- Energy limiting class- 3
Physical
- Ambient operating temperature –5°C to +40°C
- Number of poles- 1P + N
- IP rating- Front face IP4X, screw IP2X
- Terminal capacity- Line / Neutral (Load) 16mm2 (torque 1.2Nm) Line (Supply) 10mm2 (torque 2.5Nm)
- Max. installation altitude- 2000 metres
Dimensions & Weight
- (HxWxD) 116mm x 18mm x 77mm
- Weight 0.185Kg (0.2Kg packed)
Trip Type | Type A |
Product | RCBO |
Type | Combined RCBO AFDD |
Current Rating | 20 A |
Number Of Poles | Double Pole (2P) |
Delivery Costs
Our standard delivery charge to UK mainland addresses is £5.49 ex-VAT.
Take advantage of FREE* Delivery when you spend over £50 (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 25 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.
Click here to find out more.
Stock Availability and Delivery
In-stock items for delivery to you within 1-2 working days. We will contact you if we do not have all of your items in stock.
Items kept in our remote warehouse or ordered from the supplier. We will advise you if it will take any longer than the typical 2-4 working days.