Product category:
Power supplies and plant cabling
News Release from: Moeller Electric | Subject: NZM circuit breakers
Edited by the Processingtalk Editorial
Team on 15 June 2006
New moulded case circuit breakers
With complete uniformity across the full range from 15A to 1600A, the new Moeller Electric NZM moulded case circuit breakers simplify the specification and design of electrical distribution systems
Offering complete uniformity across the full range from 15A to 1600A, the new Moeller Electric NZM moulded case circuit breakers greatly simplify the specification and design of electrical distribution systems In addition, since the whole range uses the same accessories, users can make substantial savings on stock and engineering
This article was originally published on Processingtalk on 16 Jul 2008 at 8.00am (UK)
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Available in both three and four-pole versions with a choice of toggle or rotary actuators, the new NZM breakers are offered with four levels of switching capacity.
The economical 25kA units, that can be supplied with ratings up to 250A, are a cost-effective choice for small sub-distribution boards, while the 150kA devices provide a convenient solution for high-power distribution.
Intermediate ratings of 50kA and 100kA mean that NZM breakers can always be optimally matched to the installation.
Just four frame sizes are used in the NZM range, covering applications up to 160A, 250A, 630A and 1,600A respectively.
All sizes feature compact construction with 160A size 1 device, in particular, offering substantial space savings.
This makes it especially suitable for use in machine control systems and power distribution boards where space is invariably at a premium.
For all NZM breakers, other than those with the smallest frame size, electronic trip systems are available.
Not only do these allow the protective functions to be precisely tailored to the user needs, they also provide communication and on-board diagnostic facilities, allowing easy integration with modern automation and plant-monitoring systems.
Designed for ease of use, NZM breakers accept auxiliary contacts that are installed from the front of the device.
In addition, they are offered with a choice of spring-clamp or screw connections for control and auxiliary circuits.
As well as standard versions, the versatile NZM range also features withdrawable devices, and the functionality of all products in the range can be further enhanced by a comprehensive family of accessories.
These include door-coupling handles, side-wall operators, remote actuators and withdrawable mounting frames.
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