News

Three phase power keeps motors, pumps and panels running hour after hour. A three phase disconnect is the simple handle that lets you take control of that power whenever you need to. Turn it one way and all three conductors close together to feed the load. Turn it the other way and every phase opens at the same time, leaving the circuit safely isolated.

Kripal builds a full line of 3 phase disconnects around this idea. The aim is always the same: clear operation, familiar hardware and enclosures that fit real plant rooms and outdoor walls.

What a Kripal three phase disconnect does

Inside every Kripal device, you find a 3 pole to 5 pole disconnect mechanism. The contacts move together so each phase opens and closes at the same moment. Used as a three phase disconnect or as a 3 phase disconnect switch, it gives a simple answer to the question whether the circuit is on or off.

Many units in the series are rated for use as a 440V disconnect, so the same family can handle common industrial three phase systems. At the top end of the range, you can specify 250A-800A disconnect 3 phase style unit for feeders and large machines. Smaller frames cover fans, pumps and compact machinery.

Series Structure and Ratings

Kripal arranges its 3 phase disconnect range in steady steps of current. That means you can choose a rating that suits each load rather than jumping between unrelated products.

At one end are compact three phase disconnect units for modest motors. In the middle are devices that match typical distribution feeders and packaged equipment. At the larger end of the line are frames that take the role of main switches, where a single handle controls the incoming supply to a board.

Across these sizes, the movement of the handle and the feel of the contacts stay consistent. Staff who are comfortable with a small 3 phase disconnect switch will recognise the larger units immediately.

Enclosures and the 3 phase disconnect box

Mechanism alone is not enough. Kripal supplies many models as a complete 3 phase disconnect box ready for mounting.

Cable entry has been given space as well. Larger frames offer generous room for bending three phase conductors and landing lugs, while smaller boxes stay neat for tight spots on machine frames.

Two position and three position operation

Most units in the Kripal line are simple two state devices. They work as a straightforward three phase disconnect with on and off markings that anyone can read.

For projects that need more than a simple feed, Kripal also offers models that behave as a 3 position disconnect switch. These have three stable handle positions, for example source one on, off, and source two on. That makes them useful for manual transfer between supplies or for test and maintenance modes.

Because these versions are based on the same core hardware, they feel like part of the same family. Operators do not have to learn a new style of movement just because they are using a selector function.

Where Kripal 3 phase disconnects fit in

• Local isolators are mounted beside motors and pumps, where a lockable handle lets maintenance staff secure the load in the off position.
• Packaged machines and control panels, where a front mounted 3 phase disconnect switch is used as the main incoming control.
• Sub distribution boards, where a large frame unit operates as a feeder switch in the style of a 200 amp disconnect 3 phase.
• Outdoor units such as fans and rooftop equipment, where a sealed 3 phase disconnect box serves as the nearby 440v disconnect.

Choosing a Kripal three phase disconnect

Selection can follow a short path.

Match the voltage and current

Pick a device that covers the system level and the full load current with some margin. Next choose the format. Decide whether you want a panel mounted mechanism, DIN Rail mounted mechanism or a complete wall mounted 3 phase disconnect box.

Consider Function

For the first case, choose a standard three phase disconnect. For the second, look at the 3 position disconnect switch options.

Consider the environment

Clean indoor rooms can use basic enclosures. Outdoor and wet areas call for the sealed models that Kripal designs specifically for that duty.

Closing thoughts

Kripal three phase disconnect products take a familiar idea and turn it into a clear, coherent series. From small 3 phase disconnects for single motors up to a firm 250A-800A disconnect 3 phase for a feeder, the same design language runs through the range.

If you are planning a new panel or upgrading existing equipment and would like prices, data sheets or sample support for Kripal three phase disconnect solutions, send an inquiry with your voltage, current range and application details.  A short message with rating and quantity information is enough to start a focused proposal that matches your project.

Get A Quote