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NZM7A-150N-NA-M8
Circuit Breakers


NZM7A-150N-NA-M8
Shown with Pressure Wire Terminals

Continuous Current Rating

Fixed Thermal Setting Magnetic Trip Setting for Instantaneous Response  Normal Interrupting Capacity
150 150 960-1900 25 kA AT 480 V 50/60 HZ
14 kA AT 600 V 50/60 HZ

This NZM7A-150N-NA-M8 molded-case circuit breakers is UL listed (UL 489) and CSA certified (22.2 No.. 5.1) Inverse Time, 150A Thermal magnetic Trip Circuit Breakers with a fixed thermal trip feature and an adjustable magnetic trip function (In breakers rated 25 to 40A, the magnetic trip function is fixed at 380A).

NZM7A-150N-NA-M8 are supplied as standard with pressure wire terminals to accept cable connection, but are also suitable for bolt-on connections using crimped lugs or straight lengths of Cu busbar (type suffix "-M8").

NZM7A-150N-NA-M8 Dimensions


NZM7A-150N-NA-M8 Dimensions
Inches  
Millimeters
 
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NZM7A-150N-NA-M8 Dimensions

 

NZM7 AWA Installation Sheets

NZM7 Accessories


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Legacy Circuit Breakers



When purchasing the NZM7A-150N-NA-M8, you will need the full part number off your model circuit breaker.

Standard Breakers have 3 power wires in (L1-L2-L3) on the top, and 3 power wires out (T1-T2-T3) on the bottom.

Any other control wires will indicate some sort of modification accessory is installed!

Accessories can be identified by small labels on the breaker, with part numbers such as

a.                   (u-nzm7) (230, 60) Indicates under voltage trip which needs 230 volt 60hz applied to turn the breaker on.

b.                   (a-nzm7) (230,60) Indicates shunt trip which needs 230 volt 60hz applied to turn the breaker off.

c.                   (rhi, nhi, ahi -xx) Would be auxiliary contacts.

 If the labels cannot be read or to double check their usage record all the terminal numbers that have control wires on them, and your KMparts  Specialist will advise you of your best options.

 Please note any of the above when ordering. Also check to see if they are even used. If they are present but there are no wires on them then chances are you don’t need them.

NZM7-NZM7A Overview
Available as a Disconnect Switch, Circuit breaker with thermal trip only (NZM7A), or thermal and magnetic trip (NZM7).

 

1

Auxiliary Contact Block Options

 

2

Voltage Trip Options

 

3

Rotary Converter, Shaft and Handle

 

4

NZM7 Base Device


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