Power disconnect switch in a box | 3P | 20A | 440V | IP66 | hermetic | load break switch

Technical Specifications

Product type: Weatherproof load break switch in enclosure

Polarity: 3P (3-Pole)

Rated current: 20A

Maximum load control current: Up to 100A structural capacity

Rated voltage: 440V AC

Voltage class: Low voltage power disconnection

Housing material: Reinforced engineering plastic

Plastic flammability class: V0 Flame Retardant

Protection class: IP66

Dust resistance: Completely sealed

Water resistance: Protection against powerful water jets

Mounting type: Wall-mounted / Surface-mounted

Operating environment: Indoor and outdoor installation

Purpose: Load isolation / Service disconnect / Emergency power shut-off

Functions

Full power circuit disconnection – allows for safe isolation of the device from the mains during maintenance or repair work.

Load isolation under voltage – designed to disconnect an active load without compromising circuit safety.

IP66 Weatherproof protection – the enclosure fully protects the switch from dust, rain, moisture, and dirt.

V0 Flame-retardant plastic – enhanced electrical safety and resistance to arcing effects.

Clear ON/OFF handle position – the operator can immediately see whether the circuit is engaged or fully disconnected.

Suitable for outdoor operation – works perfectly in technical yards, outdoor installations, stations, or on wall-mounted units.

Reliable three-phase power separation – all 3 phases are disconnected in a single action.

Easy installation on various surfaces – compact box is quickly fixed to walls, structures, or device chassis.

Suitable for industrial loads – used for power isolation of motors, pumps, fans, machine tools, and other mechanisms.

Application

For electricians and installers: Mounted as a separate service switch near ventilation units, pumps, compressors, production equipment, or outdoor electrical boxes. This allows the technician to safely cut the power on-site during maintenance.

For engineers and automation designers: Used in designing local service disconnection points, power isolation for processing lines, emergency stop nodes, and safe equipment operation infrastructure.

For agricultural and domestic users: Highly relevant for workshop machinery, three-phase pumps, grain conveyors, fans, greenhouse automation, and outdoor farm equipment.

In industry: Mounted directly next to the equipment as a local power cut-off point, so the worker does not need to walk to the central distribution cabinet.

Pros

Weatherproof IP66 enclosure

Full three-phase load disconnection

Safe service switch located at the device

V0 flame-retardant plastic

Suitable for indoor and outdoor conditions

Clear mechanical ON/OFF position

Reliable protection against moisture and dust

Compact and easy to install

Suitable for industry, farming, and service

Increases worker safety

Cons

Not intended for automatic short-circuit protection

Does not perform residual current (leakage) protection function

Requires professional three-phase connection

No DIN rail mounting – mounted as a standalone box

Not intended for frequent daily switching like a regular light switch

FAQ

Is it suitable for outdoor use? Yes, the IP66 protection class ensures resistance to rain, dust, and humid environments.

Is it a circuit breaker? No, it is a mechanical load break switch designed for physical circuit isolation.

Can I use it with a solar power plant or inverter? Yes, it is perfectly suitable as a service or local disconnection point in a low-voltage AC circuit.

How is it better than a standard circuit breaker in the panel? It is mounted directly at the equipment, so there is no need to look for the central cabinet during maintenance – power is disconnected on the spot.