Trade Price
£270.02
Per
1
Unit
EACH
Pack Quantity
1
Eaton Moeller series NZM - Molded Case Circuit Breaker. Undervoltage release, 24VAC, +2early N/O, 4, 20
Product Length/Depth
107 mm
Product Height
51 mm
Product Width
64 mm
Product Weight
0.24 kg
Compliances
UL/CSA
IEC
RoHS conform
Certifications
UL489
CSA-C22.2 No. 5-09
UL (Category Control Number DIHS)
UL listed
CSA (Class No. 1437-01)
CE marking
CSA (File No. 22086)
UL (File No. E140305)
CSA certified
IEC60947
10.11 Short-circuit rating
Is the panel builder's responsibility. The specifications for the switchgear must be observed.
Rated control supply voltage (Us) at AC, 50 Hz - min
24 V
10.4 Clearances and creepage distances
Meets the product standard's requirements.
Minimum command time - min
10 ms
10.12 Electromagnetic compatibility
Is the panel builder's responsibility. The specifications for the switchgear must be observed.
10.2.5 Lifting
Does not apply, since the entire switchgear needs to be evaluated.
Pick-up power consumption at AC (undervoltage release)
3.6 VA
10.2.3.1 Verification of thermal stability of enclosures
Meets the product standard's requirements.
Rated control supply voltage (Us) at DC - min
0 V
Fitted with:
Two separate early-make auxiliary contacts
Pick-up power consumption at DC (undervoltage release)
2.5 W
Rated control supply voltage (Us) at AC, 50 Hz - max
24 V
10.8 Connections for external conductors
Is the panel builder's responsibility.
Minimum command time - max
15 ms
Special features
Undervoltage release with 2 early-make auxiliary contacts, e.g., for early-make connection of undervoltage release in main switch applications, as well as for interlock and load shedding circuits.
For use with emergency-stop devices in connection with an emergency-stop button.
When the under-voltage trip is switched off, accidental contact with the circuit breaker’s primary contacts is prevented when switched on.
Early-make of auxiliary contacts on switching on (manual operation): approx. 90 ms.
Cannot be used in conjunction with NZM...-XR... remote operator.
Undervoltage releases cannot be installed simultaneously with NZM...-XHIV... early-make auxiliary contact or NZM...-XA... shunt release.
Rated control supply voltage (Us) at DC - max
0 V
10.9.3 Impulse withstand voltage
Is the panel builder's responsibility.
Rated control supply voltage
24 V 50/60 Hz
10.6 Incorporation of switching devices and components
Does not apply, since the entire switchgear needs to be evaluated.
10.5 Protection against electric shock
Does not apply, since the entire switchgear needs to be evaluated.
Used with
NZM4(-4), N(S)4(-4)
Electric connection type
Screw connection
10.13 Mechanical function
The device meets the requirements, provided the information in the instruction leaflet (IL) is observed.
10.2.6 Mechanical impact
Does not apply, since the entire switchgear needs to be evaluated.
10.9.4 Testing of enclosures made of insulating material
Is the panel builder's responsibility.
Number of contacts (normally closed contacts)
0
10.3 Degree of protection of assemblies
Does not apply, since the entire switchgear needs to be evaluated.
Voltage type
AC
Drop-out voltage of undervoltage release AC/DC - min
0.35 x Us
Frame
NZM4
Reaction time
23 ms
Suitable for
Off-load switch
Voltage tolerance - min
.85
Rated control voltage (relay contacts)
24 V AC
Power consumption
2.5 W (sealing DC)
3.6 VA (Sealing AC)
10.2.3.2 Verification of resistance of insulating materials to normal heat
Meets the product standard's requirements.
Drop-out voltage of undervoltage release AC/DC - max
0.7 x Us
10.2.3.3 Resist. of insul. mat. to abnormal heat/fire by internal elect. effects
Meets the product standard's requirements.
Connection type
Contacts 3.23 and 3.24 with separate 3 m connection cables
10.9.2 Power-frequency electric strength
Is the panel builder's responsibility.
Voltage tolerance - max
1.1
Undelayed short-circuit release - min
0 A
Rated control supply voltage (Us) at AC, 60 Hz - min
24 V
10.7 Internal electrical circuits and connections
Is the panel builder's responsibility.
Terminal capacity (solid/flexible conductor)
18 - 14 AWG (2x) for undervoltage releases, off-delayed
18 - 14 AWG (1x) at shunt release
0.75 mm² - 2.5 mm² (1x) at shunt release with ferrule
0.75 mm² - 2.5 mm² (1x) for undervoltage releases, off-delayed with ferrule
18 - 14 AWG (1x) for undervoltage releases, off-delayed
0.75 mm² - 2.5 mm² (2x) for undervoltage releases, off-delayed with ferrule
0.75 mm² - 2.5 mm² (2x) at shunt release with ferrule
18 - 14 AWG (2x) at shunt release
10.10 Temperature rise
The panel builder is responsible for the temperature rise calculation. Eaton will provide heat dissipation data for the devices.
Type
Accessory
Undervoltage release
Undervoltage release with early-make auxiliary contact
10.2.2 Corrosion resistance
Meets the product standard's requirements.
10.2.4 Resistance to ultra-violet (UV) radiation
Meets the product standard's requirements.
10.2.7 Inscriptions
Meets the product standard's requirements.
Rated control supply voltage (Us) at AC, 60 Hz - max
24 V
Number of contacts (normally open contacts)
2
Undelayed short-circuit release - max
0 A
Number of contacts (change-over contacts)
0
Datasheet