NZM2/3-XUHIV2A24AC
189732 NZM2/3-XUHIV2A24AC
189732

Undervoltage release for NZM2/3, configurable relays, 2NO, 1 early-make auxiliary contact, 1NO, 24AC, Push-in terminals
Optional accessories for the circuit-breaker series NZM offers a comprehensive portfolio of application options for use world wide. The mounting is always flexible and easy thanks to the modular function groups. Notes: Undervoltage releases with one early-make contact and two relays. For interlocking and load-shedding circuits, as well as for early-make of the undervoltage release in main-switch applications. Non-delayed disconnection of circuit-breaker NZM when control voltage drops below 35 - 70 % Us. For use with emergency switching off devices in conjunction with emergency switching off buttom. For signalizing commands or different states of the circuit-breaker. Two relays per unit. Actuation reason can be configured in the trip unit. Configuration via communication or circuit breaker display or front USB connection and Eaton Power Xpert Protection Manager. When the undervoltage release is de-energized, accidental contact with the main contacts of the circuit-breaker dureing attempts to switch on is reliably prevented. Early-make of auxiliary contacts on switching on and off (manual operation): approx. 20 ms (NZM2/3) and 90 ms (NZM4). Only suitable for use in conjunction with circuit-breakers with electronic releases. Connot be used in conjunction with remote operator NZM…-XR… Undervoltage release relais modules cannot be installed simultaneously with early-make contact NZM…-XHIV, or untervoltage release NZM…-XU…, or shunt release NZM…-XA… Relay coil actuated by trip unit. Relay contact for control wiring. Control wiring to push-in terminals. Cannot be used with PXR10 NZM-AE electronic release.

Product range	Accessories
Accessories	Undervoltage release
Accessories	Undervoltage release with early-make auxiliary contact and two relays
Standard/Approval	UL/CSA, IEC
Construction size	NZM2/3
Description	For interlock circuits and load-shedding circuits as well as make-before-break interruption of the shunt trip for primary breaker use. Instantaneous shut-off of the NZM circuit breaker when the control voltage drops below 35 - 70% Us. For use with emergency-stop devices in connection with an emergency-stop button. For signalizing commands or different states of the circuit-breaker. Two relays per unit. The activation criteria can be configured in the trip unit. Configuration via communication or circuit breaker display or front USB port and Eaton Power Xpert Protection Manager. When the under-voltage trip is switched off, accidental contact with the circuit breaker’s primary contacts is prevented when switched on. Make-before-break activation of auxiliary contact when switching on and off (manual operation): approx. 20 ms (NZM2/3) and 90 ms (NZM4). Only for use in combination with circuit-breakers with electronic trips. Cannot be used in conjunction with NZM...-XR... remote operator. Under-voltage trip relay modules cannot be installed simultaneously with make-before-break auxiliary contact NZM...-XHIV, under-voltage trip NZM...-XU... or shunt trip NZM...-XA. Relay coil is controlled by trip unit. Relay contacts for control wiring. Relays can be used for controlling remote operator with Us=208-204 V AC. Control wiring on push-in clamps. Cannot be used with the PXR10 NZM-AX electronic trip.
Connection type	with push in terminal
Auxiliary contacts	With early-make auxiliary contact and 2 relays
For use with	PXR20(25) NZM2(-4)-..X… PXR20(25) NZM3(-4)-..X…
Number of relays	2
Contact sequence
Rated control voltage [Us ] >AC [Us ]	24-24 V AC
Operating range >Drop-out voltage	0.35 - 0.7 x Us
Operating range >Pick-up voltage [x Uc]	0.85 - 1.1
Power consumption >AC >Pick-up AC	1.5 VA
Power consumption >AC >Sealing AC	1.5 VA
Power consumption >DC >Pick-up DC	0.8 W
Power consumption >DC >Sealing DC	0.8 W
Maximum opening delay (response time until opening of the main contacts)	19 ms
Minimum command time	10 - 15 ms
Terminal capacity >Solid	1 x (0.2 – 1.5) mm2
Terminal capacity >Stranded	1 x (0.25 – 1.5) mm2
Terminal capacity	1 x (24 - 16) AWG
Terminal capacity >with insulated end sleeve in accordance with DIN46224 / 4	1 x (0,25 - 1,5) mm2
Terminal capacity >with uninsulated end sleeve in accordance with DIN46228 / 1	1 x (0,25 - 0,75) mm2
Rated control voltage [Us ] >AC [Us ]	24-240 V AC
Rated control voltage [Us ] >DC [Us ]	24-24 V DC
Contacts >Rated impulse withstand voltage [Uimp]	4000 V AC
Contacts >Rated insulation voltage [Ui ]	250 V
Contacts >Overvoltage category/pollution degree	II/2
Switching capacity >Rated operational current >AC–1 >24 V [Ie]	1 A
Switching capacity >Rated operational current >AC–1 >110 V [Ie]	1 A
Switching capacity >Rated operational current >AC–1 >230 V [Ie]	1 A
Switching capacity >Rated operational current >DC-1 >24 V [Ie ]	1 A
Switching capacity >Min. switching capacity (reference value)	0.1 mA / 0.1 VDC
Connection >Stripping length	8 mm
Connection >Terminal capacity >Solid	1 x (0.2 – 1.5) mm2
Connection >Terminal capacity >Stranded	1 x (0.25 – 1.5) mm2
Connection >Terminal capacity	1 x (24 - 16) AWG
Connection >Terminal capacity >with insulated end sleeve in accordance with DIN46224 / 4	1 x (0,25 - 1,5) mm2
Connection >Terminal capacity >with uninsulated end sleeve in accordance with DIN46228 / 1	1 x (0,25 - 0,75) mm2
10.2 Strength of materials and parts >10.2.2 Corrosion resistance	Meets the product standard´s requirements.
10.2 Strength of materials and parts >10.2.3.1 Verification of thermal stability of enclosures	Meets the product standard´s requirements.
10.2 Strength of materials and parts >10.2.3.2 Verification of resistance of insulating materials to normal heat	Meets the product standard´s requirements.
10.2 Strength of materials and parts >10.2.3.3 Verification of resistance of insulating materials to abnormal heat and fire due to internal electric effects	Meets the product standard´s requirements.
10.2 Strength of materials and parts >10.2.4 Resistance to ultra-violet (UV) radiation	Meets the product standard´s requirements.
10.2 Strength of materials and parts >10.2.5 Lifting	Does not apply, since the entire switchgear needs to be evaluated.
10.2 Strength of materials and parts >10.2.6 Mechanical impact	Does not apply, since the entire switchgear needs to be evaluated.
10.2 Strength of materials and parts >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 Insulation properties >10.9.2 Power-frequency electric strength	Is the panel builder´s responsibility.
10.9 Insulation properties >10.9.3 Impulse withstand voltage	Is the panel builder´s responsibility.
10.9 Insulation properties >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.
Rated control supply voltage Us at AC 50HZ	24 - 24 V
Rated control supply voltage Us at AC 60HZ	24 - 24 V
Rated control supply voltage Us at DC	0 - 0 V
Voltage type for actuating	AC
Type of electric connection	Spring clamp connection
Number of contacts as normally open contact	3
Number of contacts as normally closed contact	0
Number of contacts as change-over contact	0
Delayed	No
Suitable for power circuit breaker	Yes
Suitable for off-load switch	Yes
Suitable for motor safety switch	Yes
Suitable for overload relay	No
Product Standards	UL489; CSA-C22.2 No. 5-09; IEC60947, CE marking
UL File No.	E140305
UL Category Control No.	DIHS
CSA File No.	022086
CSA Class No.	1437-01
North America Certification	UL listed, CSA certified

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