Press Release September 7, 2007

FOR IMMEDIATE RELEASE:

CONTACT:
M. Shallow
KMParts.com
(941) 473-0073
(941) 473-0987
sales@kmparts.com
http://www.kmparts.com

NZM circuit breaker novelties

Wood Dale, IL, September 7, 2007

Circuit breakers of the new C-series with 36 kA of short circuit breaking capacity and nominal currents of 20 to 500 A are suited to the most common standard applications. The capacity of the low-voltage transformer determines the intensity of the short-circuit current in the most prevalent low-voltage radial networks. The 36 kA breaking capacity of the new C-series prevails over the highest short-circuit currents of the ordinary 630 kVA transformer class. Even in networks with transformers of up to 1600 kVA, the economical switches of the new C-switch series are the top choice: They are modeled after the high-performance circuit breakers of the modern Moeller NZM series and also possess their positive features regarding easy operation. Thanks to broad setting ranges, the thermo-magnetic tripping devices can be adapted to the allowable load currents of the equipment to be protected. With the adequate accessories, the circuit breakers of the new C-series lend themselves to every use – in power distribution networks or in the equipping of electrical machines.

Circuit breakers for DC current applications: For DC current networks with up 750 V of operating voltage and operating currents of up to 500 A, the new NZM-A circuit breakers are the ideal protective devices. Equipped with thermo-magnetic tripping systems, they guarantee an accurate measurement of the effective value for operating and residual currents. The double-breaking contact systems allow for safe switching in high-energy networks with up to 60,000 amps of short-circuit current. Thanks to the high DC-3 utilization category, these switches can be used universally, to network replacement batteries, and on to the demanding switching and protecting of DC-shunt motors in reversing and inching operation.

More capacity in a smaller space: NZM1 to 160A, NZM2 to 300A.The NZM1 and NZM2 circuit breakers create space in the switching cabinet and thus save costs - instead of the next-largest design, users are now simply looking to the more compact product developments of the NZM system series. This combines two advantages: you can obtain the same performance for up to 20 percent less of the cost and, in doing so, you can also save a lot of room. Up to one-fourth of the room to be specific.

The innovative rear drives for 3-pole circuit breakers and load disconnect switches offer an economic and compact way to install switches and door handles as a complete mounting unit to the cabinet side panels or doors. Typical applications are main switches, with or without an emergency OFF function, with up to 300 A of nominal current, use in processing machines or under crowded conditions in general, since these switches do not require any room on the mounting plate. In addition to the optical advantage of a mounting “invisible” from outside, this solution also offers easy and quick access to connection terminals, adjustment handles, over-voltage tripping units, and auxiliary switches.

With RMQ it is now possible to accommodate double the amount of auxiliary and signaling contacts in the same amount of room: Break/make contact, make/make contact, or break/break contact combinations can be supplied alternatively.
Up to ten contacts are now available, depending upon the design size. The use of the RMQ elements from the Moeller control unit program is persuasive; this is how mass production can afford having an attractive price structure. Use of the system saves on storage costs.

Comfortable connector technology with frame terminals for circuit breakers up to 500A.The new offering of switches with frame terminals – above and below – simplifies ordering and logistics. Circuit breakers and load disconnect switches with the type extension “-BT” are ready-wired for installations of single or multiple-conductor cables without wire end sleeves, as well as of laminated copper bands.

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