LV426801

The LV426801 from Square D by Schneider Electric is an undervoltage release (MN). A voltage release can be used to trip the circuit breaker using a control signal. It trips the circuit breaker when control voltage drops below 35% of its rated voltage. Between 35% and 70% of the rated voltage, opening is possible but not guaranteed. Above 70% of rated voltage, opening does not take place. Circuit breaker closing is possible only if voltage exceeds 85% of the rated voltage. If an undervoltage condition exists, operation of closing mechanism of circuit breaker will not permit the main contacts to touch, even momentarily. This is commonly called kiss free. It has range compatibility with PowerPact B, Compact NSXm circuit breakers. The circuit breaker must be reset locally after being tripped by undervoltage release (MN). MN voltage releases comply with UL 489, CSA C22.2 No. 5 and IEC 60947-2 Standards. Listed for field installation per UL file E103955 and certified under CSA file 177007.

• Control circuit voltage is 24VAC, 24VDC
• Threshold tripping voltage is 0.35 to 0.7 x Un during opening time 0.85 x Un during closing time
• Clip-on mounting mode, less than 50ms response time
• Disconnect under low voltage conditions
• Wire stripping length is 0.31inch (8mm)
• Auxiliary connection terminal is spring
• Continuous duty rated coil
• Voltage release snap into a cavity under the front accessory cover of the circuit breaker
• Presence and characteristics of the voltage release is visible from the front face through a window
• 50% of the rated mechanical endurance of the circuit breaker

Applications

Automation & Process Control, Industrial