Littelfuse ECS40A - ECS Series - 120 Volt - Surface mount with two #6 (M3.5 x 0.6) screws - 10 A resistive @ 240 VAC; 1/4 hp @ 125 VAC; 1/2 hp @ 250 VAC

Littelfuse ECS40A is a versatile electronic motor protector. It has a 10A resistive load rating and can handle 1/4 hp at 125V and 1/2 hp at 250V. With 0.25in male quick connect terminals, it offers easy installation. Its trip delay range is adjustable from 0.150 to 7 seconds, and it features peak detection and toroid sensor type. It has a trip point range of 0.5 to 5 and a trip point hysteresis of ±5%. Overall, this protector offers reliable motor protection with various adjustable parameters.

The ECS Series of single-phase AC current sensors is a universal, overcurrent or undercurrent sensing control. Its built-in toroidal sensor eliminates the inconvenience of installing a stand-alone current transformer. Includes onboard adjustments for current sensing mode, trip point, and trip delay. Detects over or undercurrent events like locked rotor, loss of load, an open heater or lamp load, or proves an operation is taking place or has ended.

Operation
Input voltage must be supplied at all times for proper operation. When a fault is sensed throughout the trip delay, the output relay is energized. When the current returns to the normal run condition or zero, the output and the delay are reset. If a fault is sensed and then corrected before the trip delay is completed, the relay will not energize and the trip delay is reset to zero.

Property	Value
Input Voltage (V)	120 Vac
Output Form	Isolated SPDT
Termination Type	0.25 in. (6.35 mm) male quick connect terminals (5)
Dimensions	3.5 H x 2.5 W x 1.75 D in. (88.9 x 63.5 x 44.5 mm)
Weight (kg)	0 Kg (kilogram)
Humidity	95% non-condensing
Input AC Line Frequency (Hz)	50 / 60
Input Tolerance (%)	-20 - 10%
Insulation Resistance (Ω)	≥100
Output Load Rating (VA)	10 A resistive @ 240 Vac; 1/4 hp @ 125 Vac; 1/2 hp @ 250 Vac
Output Type	Electromechanical relay
Response Time (ms)	≤75 ms
Sensor Frequency (Hz)	45/500
Sensor Mode	Over or undercurrent; switch selectable on the unit or factory fixed
Sensor Monitored Current Range	Maximum: Steady - 50A turns; Inrush - 300A turns for 10s
Sensor Tolerance	Guaranteed range
Sensor Type	Toroid; through-hole wiring
Trip Delay Type	Analog
Trip Delay Range	0.150 - 7 s adjustable
Trip Delay Sensing on Startup (s)	Factory fixed 0 - 6 s: +40%; -0%
Trip Delay vs Temperature	±15%
Trip Point Hysteresis (%)	±5%
Trip Point Range	0.5 - 5 adjustable
Trip Point vs Temperature	≅±5%
Type of Detection	Peak detection
Isolation Voltage	≥2500 Vrms input to output
Mounting Method	Surface mount with two #6 (M3.5 x 0.6) screws
Operating Temperature Max (°C)	60
Operating Temperature Maximum Fahrenheit	140
Operating Temperature Min (°C)	-40
Operating Temperature Minimum Fahrenheit	-40
Storage Temperature Maximum Celsius	85
Storage Temperature Maximum Fahrenheit	185
Storage Temperature Minimum Celsius	-40
Storage Temperature Minimum Fahrenheit	-40

Brand	SSAC Littelfuse
MPN	ECS40A

SSAC Littelfuse ECS40A Current Sensor, 120 V, Double Throw, Single Pole

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Specifications