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Undervoltage Release Relay | 208-240V AC | 2 Configurable Relays | Push-in Terminals by Eaton
Undervoltage release relay with a control supply voltage of 208-240V AC and two configurable relays—ideal for motor safety and emergency-stop applications. Built for industrial and commercial use, it ensures reliable circuit breaker operation and prevents accidental contact.
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Product Name/Title: Undervoltage Release Relay | 208-240V AC | 2 Configurable Relays | Push-in Terminals by Eaton
Brand: Eaton
SKU: Y7-189727
Alternatively Known As: NZM Undervoltage Release Relay, NZM2/3 Undervoltage Trip, Eaton NZM Relay, Circuit Breaker Undervoltage Release
Technical Specifications
- Rated control supply voltage (Us) AC: 208-240 V, 50/60 Hz
- Number of relays: 2 with 2 normally open contacts
- Reaction time: 19 ms
- Pick-up power consumption: 1.5 VA (AC), 0.8 W (DC)
- Rated insulation voltage (Ui): 250 V
- Rated impulse withstand voltage (Uimp): 4 kV AC
- Connection type: Push-in terminals with spring clamp connection
- Pollution degree: 2
- Overvoltage category: II
- Terminal capacity: 0.2 mm² to 1.5 mm² solid cable, 0.25 mm² to 1.5 mm² stranded cable
- Suitable for use with NZM2/3 frame circuit breakers
- Voltage tolerance: 0.85 to 1.1 times Us
- Switching capacity (reference): min 0.1 mA / 0.1 VDC
- Dimensions (H x L x W): 65mm x 115mm x 75mm
- Weight: 0.08 kg
Key Features
- Instantaneous shut-off of the NZM circuit breaker when control voltage drops below 35-70% Us
- Two configurable relays per unit with 2 normally open contacts
- Push-in clamp relay contacts for control wiring
- Configuration via communication, circuit breaker display, front USB port, and Eaton Power Xpert Protection Manager
- Prevents accidental contact with circuit breaker’s primary contacts when under-voltage trip is switched off
- Only for use with circuit-breakers with electronic trips
- Relays can control remote operator with Us=208-240 V AC
- Cannot be used simultaneously with make-before-break auxiliary contact NZM...-XHIV, under-voltage trip NZM...-XU..., or shunt trip NZM...-XA
Professional Installation Requirements
- Professional installation by a qualified electrician is required to ensure compliance with electrical safety standards and proper integration with NZM circuit breakers.
Applications
- Off-load switch
- Motor safety switch
- Emergency-stop device integration with emergency-stop button
- Signalizing commands or different states of the circuit-breaker
Standards & Compliance
- Complies with AS/NZS 3000 – Wiring Rules (Electrical Installation)
- Complies with AS/NZS 3112 – Plugs and Socket-Outlets (Type I Plug)
- Complies with AS/NZS 3123 – Industrial Plugs and Socket-Outlets
- Complies with AS/NZS 3820 – Essential Safety Requirements for Electrical Equipment
Environmental Benefits
- Helps prevent electrical faults and equipment damage, reducing waste and improving system reliability
- Supports energy-efficient operation by ensuring proper circuit breaker function
Warranty Information
Warranty details available upon request from Eaton; typically includes coverage against manufacturing defects.
Available Now
The Eaton Moeller NZM2/3-XU2A208-240AC undervoltage release relay is available for immediate purchase, ideal for industrial and commercial electrical safety applications.
