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259446
Modelkode: NZM1-XU480-525AC

Eaton Moeller series NZM Undervoltage release, 480-525VAC, for NZM1

General specifications

Product Name
Eaton Moeller series NZM Undervoltage release
Catalog Number
259446
EAN
4015082594466
Product Length/Depth
37 mm
Product Height
66 mm
Product Width
32 mm
Product Weight
0.044 kg
Compliances
UL/CSA
IEC
RoHS conform
Certifications
UL (File No. E140305)
CSA-C22.2 No. 5-09
CSA certified
IEC60947
CSA (Class No. 1437-01)
UL489
UL (Category Control Number DIHS)
UL listed
CSA (File No. 22086)
CE marking
Model Code
NZM1-XU480-525AC

Delivery program

Type
Undervoltage release
Special features
  • Non-delayed disconnection of NZM circuit-breaker or N switch-disconnector when the control voltage sinks below 35 – 70% US.
  • 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.
  • Undervoltage releases cannot be installed simultaneously with NZM...-XHIV... early-make auxiliary contact or NZM...-XA... shunt release.
Frame
NZM1
Suitable for
Off-load switch
Used with
NZM1(-4), N(S)1(-4)

Technical Data - Electrical

Voltage type
AC
Rated control voltage (relay contacts)
525 V AC
480 V AC
Rated control supply voltage
480 - 525 V 50/60 Hz
Rated control supply voltage (Us) at AC, 50 Hz - min
480 V
Rated control supply voltage (Us) at AC, 50 Hz - max
525 V
Rated control supply voltage (Us) at AC, 60 Hz - min
480 V
Rated control supply voltage (Us) at AC, 60 Hz - max
525 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
1.5 VA (sealing AC)
0.8 W (sealing DC)
Pick-up power consumption at AC (undervoltage release)
1.5 VA
Pick-up power consumption at DC (undervoltage release)
0.8 W
Reaction time
19 ms
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)
0
Connection type
With terminal block on the left-hand switch side
Special features
  • Non-delayed disconnection of NZM circuit-breaker or N switch-disconnector when the control voltage sinks below 35 – 70% US.
  • 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.
  • Undervoltage releases cannot be installed simultaneously with NZM...-XHIV... early-make auxiliary contact or NZM...-XA... shunt release.

Technical Data - Mechanical - Terminals

Terminal capacity (solid/flexible conductor)
18 - 14 AWG (1x) for undervoltage releases, off-delayed
18 - 14 AWG (2x) at shunt release
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
0.75 mm² - 2.5 mm² (1x) at shunt release with ferrule
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.

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