
MK Electric K4891BLK Grid Plus Black 1 Way 1 Module Single Pole Modular Switch 20A
K4891BLK
MK Electric K4891BLK Grid Plus Modular Switch – Black, 1 Way, 1 Module, 20A
The MK Electric K4891BLK is a 1 module, 1 way, single pole modular switch in black, designed for use with the MK Grid Plus system. Rated at 20A, it offers a robust and professional switching solution ideal for a variety of electrical installations.
- 20A Switching Capacity: Suitable for heavier loads in both commercial and residential setups.
- Fluorescent Load Compatible: No need for de-rating when used with fluorescent or inductive loads.
- 1 Module Format: Compact design fits easily into Grid Plus assemblies for neat installation.
- Secure Clip Fit: Easily clips into MK Grid Plus mounting frames without special tools.
- Black Finish: Matches other black Grid Plus modules for a consistent aesthetic.
Technical Specification
- Product Type: Modular switch
- Rating: 20A
- Switch Type: 1 way, single pole
- Module Size: 1 module
- Standard: BS EN 60669-1: 2000
✅ Upgrade your switchgear with the MK K4891BLK – a durable 20A modular switch for dependable control within Grid Plus systems!

Ean Code | 5017490331564 |
Range | MK Grid Plus |
Product | Gridswitch Module |
Type | Single Pole Module |
Ingress Protection | Other |
Number Of Gangs | 1 |
Voltage | 250 V |
Pole Configuration | Single Pole |
Mounting | Flush |
Width | 25 mm |
Current Rating | 20 A |
Standards | BS EN 60669-1 |
Height | 59 mm |
Face Colour | Black |
Ways | 1 Way |
Rocker Colour | White |
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.