Eaton : NZM2/3-XU2A24DC
189725 NZM2/3-XU2A24DC
NZM2/3-XU2A24DC /189725
Undervoltage release for NZM2/3, configurable relays, 2NO, 24DC, Push-in terminalsOptional 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 two relays. 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. Only suitable for use in conjunction with circuit-breakers with electronic releases. 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.
Undervoltage release for NZM2/3, configurable relays, 2NO, 24DC, 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 two relays. 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. Only suitable for use in conjunction with circuit-breakers with electronic releases. 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 two relays |
| Standard/Approval | UL/CSA, IEC |
| Construction size | NZM2/3 |
| Description | 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. Only for use in combination with circuit-breakers with electronic trips. 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 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 | without auxiliary contact |
| For use with | PXR20(25) NZM2(-4)-..X… PXR20(25) NZM3(-4)-..X… |
| Number of relays | 2 |
| Contact sequence | |
| Rated control voltage [Us
] >DC [Us ] |
24-24 V DC |
| 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 | 0 - 0 V |
| Rated control supply voltage Us at AC 60HZ | 0 - 0 V |
| Rated control supply voltage Us at DC | 24 - 24 V |
| Voltage type for actuating | DC |
| Type of electric connection | Spring clamp connection |
| Number of contacts as normally open contact | 2 |
| 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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