Schneider Acti9 Undervoltage Release Series – iMN iMNs iMNx

An undervoltage release opens a circuit breaker when the voltage drops or is lost. Acti9 offers three types. The iMN opens the breaker when the supply drops and stops it from closing until the voltage returns. The iMNs is the instantaneous version, so it reacts without delay. The iMNx is different, because it works from a separate control circuit. It trips when that circuit is opened, and a drop in the main supply does not trip it. This makes it useful in emergency stop chains. These releases protect machines and people from sudden restarts after a power cut. Voltage versions include 48V AC, 220 to 240V AC and 380 to 415V AC. All are 18mm wide and clip on a DIN rail. Choose the voltage that matches your supply.

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Schneider Acti9 Undervoltage Release Series - Features

• iMN: trips on voltage loss and blocks closing until the voltage is back
• iMNs: instantaneous trip
• iMNx: trips from a separate control circuit, with a red tripped indicator
• Several voltages: 48V, 220 to 240V and 380 to 415V AC
• Compact: two modules wide

Schneider Acti9 Undervoltage Release Series - Technical Specifications

• Range: Acti9
• Models: iMN A9A26960 (220 to 240V AC) and A9A26961 (48V AC), iMNs A9A26963 (220 to 240V AC), iMNx A9A26969 (220 to 240V AC) and A9A26971 (380 to 415V AC)
• Frequency: 50/60Hz
• Width: 18mm (2 modules of 9mm). Mounting: clip-on, DIN rail
• Standard: EN/IEC 60947-5-1

Schneider Acti9 Undervoltage Release Series - Compatibility and Installation Guide

• Fits Acti9 iC60, iID, iDPN Vigi and iSW-NA
• iMNx also fits double terminal iC60 and iID versions
• Isolate the supply before fitting
• Clip the release beside the breaker and connect the supply or control circuit
• Test that the breaker trips and that the iMN type blocks closing without voltage
• Installation should be done by a qualified electrician

Frequently Asked Questions

Q1: Which one should I use for an emergency stop chain?
The iMNx.

Q2: Can I close the breaker without voltage?
Not with the iMN or iMNs.

Q3: What does the s in iMNs mean?
It is the instantaneous version.

Q4: Does the voltage need to match?
Yes, pick the version for your supply.

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