MK K4858 Switchlock for 3-Pole Fan Isolator Switches

£1.50 £1.80 Inc VAT

The MK K4858 is a critical safety accessory designed specifically for the MK Logic Plus 3-pole fan isolator range. This switch-locking device allows the isolator to be securely locked in the OFF (disconnected) position, facilitating safe repair and routine maintenance of mechanical fan units.

1 in stock

Estimated Standard Delivery Jun 11, 2026 - Jun 12, 2026

Description

Ensure complete safety during ventilation maintenance with the MK K4858 Switchlock.

Essential Safety & Compliance:

  • Secure Isolation: When fitted to a compatible MK fan isolator (such as the K4859 WHI), the K4858 enables the switch to be padlocked in the “OFF” position. This is a vital safety requirement for electricians and maintenance staff working on fans with or without timers.

  • Padlock Compatibility: The device is designed to be used with the MK K2000 Padlock (or a similar appropriately sized safety padlock), ensuring that only the person performing the maintenance holds the key to re-energize the system.

  • Standard Compliance: Using this device as part of a safe isolation procedure helps contractors comply with the Electricity at Work Regulations 1989 and BS EN 60947 standards for mechanical maintenance.

Design & Installation:

  • Durable Construction: Built to withstand the rigors of site work, it is resistant to impact and the environmental conditions often found in bathrooms, kitchens, and plant rooms.


Product Specifications

Feature Details
Brand MK Electric
Model K4858
Type Switch Locking Device
Compatibility MK 3-Pole Fan Isolators (e.g., K4859 WHI)
Function Locks switch in the OFF position
Material High-Grade Thermoset
Color White
Required Accessory K2000 Padlock (Sold separately)
Standard Complements BS EN 60947

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