Circuit-Breakers and Switch-Disconnectors up to 6300A – IZM Range

A concept for a top-level performance spectrum

The IZM from Moeller represents a concept for open-type circuit-breakers which nowadays far exceeds the industry standard worldwide.

Designed on the basis of the most up-to-date protection technology from the system sector, these switches open up new dimensions in the rating range from 630A to 6300A. This refers not only to their switching capacity, but also to the functions they offer, particularly as regards communication, simplicity of handling and installation. With IZM, you put your trust in a performance standard that will give you decisive advantages.

The system that offers more focused protection

The IZM is equipped as standard with the latest microprocessor-controlled electronics. Where necessary, the rated current range 630A–6300A, can be extended to 250A–6400A, by means of rating plug adapters. This feature enables flexible, precise matching to the power requirement in your system. There is a choice of four different control units, providing optimum protection for your system, from straightforward system protection with overload – and short-circuit releases – to digital circuit-breakers with graphical display and the option of building time-selective networks. This is a system you can depend on.

Current rating 630A–6300A

The new, open-type IZM circuit-breakers of sizes 2 and 3 already fully cover the previous range 800 to 6300A. The new, smaller size 1 expands the rating range downwards to 630A. By exchanging a rating plug, this range can be further expanded to as little as 250 A – and all this with a setting range from 0.4 to 1 x l_n.

Uniform Dimensions

The IZM has a uniform component height and depth over the whole current spectrum. Only the component width varies with the number of poles and the frame size.

Terminations

IZM circuit-breakers come with horizontal connections as standard. The following termination options are available: vertical connection, frontally accessible connections, and flanged connections.

This page last updated: 31 August 2005