Product name
Eaton Moeller series NZM release
Part no.
NZM4-XUHIV220-250DC
Product Length/Depth
107 millimetre
Product height
51 millimetre
Product width
64 millimetre
Product weight
0.24 kilogram
Compliances
IEC
UL/CSA
RoHS conform
Certifications
CSA (File No. 22086)
CSA (Class No. 1437-01)
CE marking
IEC60947
CSA certified
CSA-C22.2 No. 5-09
UL489
UL listed
UL (Category Control Number DIHS)
UL (File No. E140305)
Type
Accessory
Undervoltage release
Undervoltage release with early-make auxiliary contact
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.
Undervoltage releases cannot be installed simultaneously with NZM...-XHIV... early-make auxiliary contact or NZM...-XA... shunt release.
Cannot be used in conjunction with NZM...-XR... remote operator.
Fitted with:
Two early-make auxiliary contacts
Suitable for
Off-load switch
Used with
NZM4(-4), N(S)4(-4)
Technical Data - Electrical
Rated control voltage (relay contacts)
220 V DC
250 V DC
Rated control supply voltage
220 - 250 V DC
Rated control supply voltage (Us) at AC, 50 Hz - min
0 V
Rated control supply voltage (Us) at AC, 50 Hz - max
0 V
Rated control supply voltage (Us) at AC, 60 Hz - min
0 V
Rated control supply voltage (Us) at AC, 60 Hz - max
0 V
Rated control supply voltage (Us) at DC - min
220 V
Rated control supply voltage (Us) at DC - max
250 V
Voltage tolerance - min
0.85
Voltage tolerance - max
1.1
Drop-out voltage of undervoltage release AC/DC - min
0.35 x Us
Drop-out voltage of undervoltage release AC/DC - max
0.7 x Us
Power consumption
2.5 W (sealing DC)
3.6 VA (Sealing AC)
Pick-up power consumption at AC (undervoltage release)
3.6 V·A
Pick-up power consumption at DC (undervoltage release)
2.5 W
Minimum command time - min
10 ms
Minimum command time - max
15 ms
Electric connection type
Screw connection
Technical Data - Mechanical
Number of contacts (change-over contacts)
0
Number of contacts (normally closed contacts)
0
Number of contacts (normally open contacts)
2
Connection type
With bolt connection
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.
Undervoltage releases cannot be installed simultaneously with NZM...-XHIV... early-make auxiliary contact or NZM...-XA... shunt release.
Cannot be used in conjunction with NZM...-XR... remote operator.
Technical Data - Mechanical - Terminals
Terminal capacity (solid/flexible conductor)
0.75 mm² - 2.5 mm² (1x) at shunt release with ferrule
18 - 14 AWG (1x) for undervoltage releases, off-delayed
18 - 14 AWG (2x) for undervoltage releases, off-delayed
0.75 mm² - 2.5 mm² (1x) for undervoltage releases, off-delayed with ferrule
0.75 mm² - 2.5 mm² (2x) for undervoltage releases, off-delayed with ferrule
18 - 14 AWG (1x) at shunt release
18 - 14 AWG (2x) at shunt release
0.75 mm² - 2.5 mm² (2x) at shunt release with ferrule
Design verification as per IEC/EN 61439
10.2.2 Corrosion resistance
Meets the product standard's requirements.
10.2.3.1 Verification of thermal stability of enclosures
Meets the product standard's requirements.
10.2.3.2 Verification of resistance of insulating materials to normal heat
Meets the product standard's requirements.
10.2.3.3 Resist. of insul. mat. to abnormal heat/fire by internal elect. effects
Meets the product standard's requirements.
10.2.4 Resistance to ultra-violet (UV) radiation
Meets the product standard's requirements.
10.2.5 Lifting
Does not apply, since the entire switchgear needs to be evaluated.
10.2.6 Mechanical impact
Does not apply, since the entire switchgear needs to be evaluated.
10.2.7 Inscriptions
Meets the product standard's requirements.
10.3 Degree of protection of assemblies
Does not apply, since the entire switchgear needs to be evaluated.
10.4 Clearances and creepage distances
Meets the product standard's requirements.
10.5 Protection against electric shock
Does not apply, since the entire switchgear needs to be evaluated.
10.6 Incorporation of switching devices and components
Does not apply, since the entire switchgear needs to be evaluated.
10.7 Internal electrical circuits and connections
Is the panel builder's responsibility.
10.8 Connections for external conductors
Is the panel builder's responsibility.
10.9.2 Power-frequency electric strength
Is the panel builder's responsibility.
10.9.3 Impulse withstand voltage
Is the panel builder's responsibility.
10.9.4 Testing of enclosures made of insulating material
Is the panel builder's responsibility.
10.10 Temperature rise
The panel builder is responsible for the temperature rise calculation. Eaton will provide heat dissipation data for the devices.
10.11 Short-circuit rating
Is the panel builder's responsibility. The specifications for the switchgear must be observed.
10.12 Electromagnetic compatibility
Is the panel builder's responsibility. The specifications for the switchgear must be observed.
10.13 Mechanical function
The device meets the requirements, provided the information in the instruction leaflet (IL) is observed.
