
MK Electric K4917BLK Grid Plus Black 1 Way Double Pole Modular Key Switch 20A
K4917BLK
MK Electric K4917BLK Grid Plus Modular Key Switch – Black, 20A Double Pole
The MK Electric K4917BLK is a 1 way double pole modular key switch in black, designed for controlled switching access within the Grid Plus system. Ideal for public and commercial settings requiring restricted operation.
- Controlled Access: Operated by a supplied 3405 ZIC key, ensuring only authorised users can activate the circuit.
- Double Pole Isolation: Simultaneous switching of live and neutral lines enhances safety in sensitive installations.
- Commercial Suitability: Ideal for schools, public buildings, or emergency lighting systems.
- Grid Plus Compatible: Securely clips into MK Grid Plus frames—no special tools required.
- Durable Build: Engineered to MK standards with long service life and tested to BS EN 60669-1: 2000.
Technical Specification
- Product Type: Key switch
- Operation: 1 way, double pole
- Current Rating: 20A
- Finish: Black
- Standards: BS EN 60669-1: 2000
✅ Choose the MK K4917BLK for secure, key-operated switching in Grid Plus systems!

Ean Code | 5017490318602 |
Range | MK Grid Plus |
Product | Gridswitch Module |
Type | Key Switch Module |
Ingress Protection | Other |
Number Of Gangs | 1 |
Voltage | 250 V |
Pole Configuration | Double Pole |
Mounting | Flush |
Width | 25 mm |
Current Rating | 20 A |
Standards | BS EN 60669-1 |
Height | 59 mm |
Face Colour | Black |
Ways | 1 Way |
Switched/unswitched | Switched |
Delivery Options:
- PRIORITY DELIVERY – Next Working Day (All items in stock and ordered before 3 pm) - £7.08 inc-VAT. (£5.90 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.