Undervoltage release, 24VAC, +2N/OemOptional 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: for interlocking and load-shedding circuits, as well as for early-make of the undervoltage release in main-switch applications. For use with Emergency-Stop devices in conjunction with emergency-stop button. when the shunt release is energized, accidental contact with the main contacts of the switch during attempts to switch on is safely prevented. Early make of auxiliary contacts on switching on and off (manual operation): approx. 20ms. 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. Can be used for: NZM2(-4), N(N/O)2(-4), NZM3(-4), N(N/O)3(-4)
Undervoltage release, 24VAC, +2N/Oem
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: for interlocking and load-shedding circuits, as well as for early-make of the undervoltage release in main-switch applications. For use with Emergency-Stop devices in conjunction with emergency-stop button. when the shunt release is energized, accidental contact with the main contacts of the switch during attempts to switch on is safely prevented. Early make of auxiliary contacts on switching on and off (manual operation): approx. 20ms. 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. Can be used for: NZM2(-4), N(N/O)2(-4), NZM3(-4), N(N/O)3(-4)
| Product range | Accessories |
| Accessories | Undervoltage release |
| Accessories | Undervoltage release with early-make auxiliary contact |
| Standard/Approval | UL/CSA, IEC |
| Construction size | NZM2/3 |
| Description | 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 and off (manual operation): approx. 20 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. |
| Connection type | Coil terminals with 3 m of loose connection cables Auxiliary contact terminals wired to terminal block |
| Auxiliary contacts | with two separate early-make auxiliary contacts |
| Rated control voltage [Us] | 24 V 50/60 Hz V |
| For use with | NZM2(-4), N(S)2(-4) NZM3(-4), N(S)3(-4) |
| Rated control voltage [Us
] >AC [Us ] |
24-24 V AC |
| Rated control voltage [Us
] >Rated control voltage [Us] |
24 V 50/60 Hz V |
| 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 |
| Solid or flexible conductor, with ferrule | 1 x (0,75 - 2,5) 2 x (0,75 - 2,5) mm2 |
| 10.2 Strength of materials and parts >10.2.2 Corrosion resistance |
1 x (18 … 14) 2 x (18 … 14) AWG |
| 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 |
Meets the product standard´s requirements. |
| 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 |
Does not apply, since the entire switchgear needs to be evaluated. |
| 10.3 Degree of protection of ASSEMBLIES | Meets the product standard´s requirements. |
| 10.4 Clearances and creepage distances | Does not apply, since the entire switchgear needs to be evaluated. |
| 10.5 Protection against electric shock | Meets the product standard´s requirements. |
| 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 | Does not apply, since the entire switchgear needs to be evaluated. |
| 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 | Is the panel builder´s responsibility. |
| 10.11 Short-circuit rating | The panel builder is responsible for the temperature rise calculation. Eaton will provide heat dissipation data for the devices. |
| 10.12 Electromagnetic compatibility | Is the panel builder´s responsibility. The specifications for the switchgear must be observed. |
| 10.13 Mechanical function | Is the panel builder´s responsibility. The specifications for the switchgear must be observed. |
| Rated control supply voltage Us at AC 50HZ | The device meets the requirements, provided the information in the instruction leaflet (IL) is observed. |
| Rated control supply voltage Us at AC 60HZ | 24 - 24 V |
| Rated control supply voltage Us at DC | 24 - 24 V |
| Voltage type for actuating | 0 - 0 V |
| Type of electric connection | AC |
| Number of contacts as normally open contact | Screw connection |
| Number of contacts as normally closed contact | 2 |
| Number of contacts as change-over contact | 0 |
| Delayed | 0 |
| Suitable for power circuit breaker | No |
| Suitable for off-load switch | Yes |
| Suitable for motor safety switch | Yes |
| Suitable for overload relay | No |
| Product Standards | No |
| UL File No. | UL489; CSA-C22.2 No. 5-09; IEC60947, CE marking |
| UL Category Control No. | E140305 |
| CSA File No. | DIHS |
| CSA Class No. | 022086 |
| North America Certification | 1437-01 |
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