MK SWITCH ISOLATOR 4 POLES 63A 415V (M4422-22)

Reference: E061-657

Condition: New

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The MK SWITCH ISOLATOR 4 POLES 63A 415V (M4422-22) is a weatherproof, heavy-duty electrical isolator switch designed for safety and reliability, especially in exposed or adverse environments.¹

Here is a summary of its key specifications and features:

Key Specifications

Specification	Detail
Brand	MK Electric (a Honeywell Building Technologies product)
Model	M4422-22
Function	Switch Isolator / Switch Disconnector
Number of Poles	4-Pole (Suitable for three-phase systems and neutral)
Rated Current ( $I_e$ )	63 Amperes (A)
Rated Operational Voltage ( $U_e$ )	415 Volts (V) (Also listed as 240/415V)
Ingress Protection (IP) Rating	IP66 (Protected against dust ingress and high-pressure water jets from any direction)
Utilization Category	AC22A (For switching mixed resistive and inductive loads, including moderate overloads)
Standards	IEC 60947-3 & BS EN 60947-3
Enclosure Material	Polycarbonate (Chosen for outdoor durability)
Rated Insulation Voltage ( $U_i$ )	690V
Rated Frequency	50/60 Hz

Features and Application

Weatherproof Design (IP66): The robust construction and polycarbonate cover make it ideal for outdoor installation or in harsh indoor environments, as it is protected from dust, rain, and humidity.²
Safety Isolation: It is primarily used to safely isolate electrical circuits or equipment (like motors or air conditioning units) for maintenance, repair, or emergency by creating a clearly visible break in all four conductors (three phases and neutral).
On-Load Switching: The switch is rated for switching ON and OFF on-load (AC22A category), meaning it can make and break the circuit while current is flowing under normal operating conditions.
Compact and Discreet: It is designed to be aesthetically neat and unobtrusive for various locations.
Compliance: Meets high standards of safety and reliability (IEC and BS EN).