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Electric motor protection relay C441
phase sequencephase lossphase unbalance

electric motor protection relay
electric motor protection relay
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Characteristics

Measured/monitored value
earth-leakage, over-voltage, under-voltage, over-current, under-current, overload, phase sequence, phase loss, phase unbalance, power factor
Applications
for electric motors
Mounting
panel-mount
Other characteristics
programmable, time delay
Tripping current

Max.: 540 A

Min.: 1 A

Trigger voltage

Max.: 660 V

Min.: 170 V

Description

Take control of your process The C441 Motor Insight overload relay is an advanced low-voltage motor protection relay. The embedded intelligence helps customers save energy, optimize maintenance schedules and configure greater system protection, thus reducing overall costs and downtime. Core features of C441 Motor Insights protection relays •The ability to calculate power enables customers to not only monitor motor performance, but also load performance and energy consumption. It is the perfect relay for System critical loads, pump loads and energy-conscious customers •FLA range: FLA range of 1 -540 A with two-part numbers; selectable trip class (5-30) •Power source options: Line powered at 170-264 Vac, 323-528 Vac, 489-660 Vac; separate source single-phase control power at 93.5-132 Vac •Motor protection: thermal overload; jam/stall protection; current level alarming; current unbalance; current phase-loss; residual ground fault; phase-reversal; overvoltage; undervoltage; voltage imbalance •Load (pump) protection: Undercurrent low powe, high power •Monitoring capabilities: Current-average and phase rms; voltage-average and phase rms; power-motor kW; power factor; frequency; thermal capacity; run hours; starts; ground fault current; current unbalance percentage; voltage unbalance percentage; time to restart •Advanced features: Programmable reset/backspin timers; programmable accélération start cycle; programmable fault vs. alarm prioritization; individual trip delays; lockable user interface; scaled current readings; 10-fault queue diagnostics with full word explanation

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.