ECSH21F2.5C datasheet, PDF - EEWORLD Datasheet

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ECSH21F2.5C: DescriptionIndustrial current sensor 24VAC ISOLATED SPDT CURRENT SENSOR; CategoryThe sensor Current sensor Industrial current sensor; File Size359KB，4 Pages; ManufacturerLittelfuse; Websitehttp://www.littelfuse.com; Environmental Compliance

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ECSH21F2.5C Overview

Industrial current sensor 24VAC ISOLATED SPDT CURRENT SENSOR

ECSH21F2.5C Parametric

Parameter Name	Attribute value
Maker	Littelfuse
Product Category	Industrial current sensors
Shipping restrictions	This product may require additional documentation for export from the United States.
Current rating	20 A
sensor type	Closed Loop
Response time	1 s
Frequency Range	45 Hz to 500 Hz
high	44.5 mm
Insulation voltage	2500 V
length	88.9 mm
Encapsulation	Bulk
series	ECS
width	63.5 mm
Maximum operating temperature	+ 60 C
Minimum operating temperature	- 40 C
Working power voltage	24 VDC
Factory packaging quantity	1
unit weight	181.437 g

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Protection Relays

Current Monitoring Relays and Transducers

ECS SERIES

Current Sensors

Description

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.

Adjustment

Select the desired function, over or under current sensing.

Set the trip point and trip delay to approximate settings. Apply

power to the ECS and the monitored load. Turn adjustment and

watch the LED. LED will light; turn slightly in opposite direction

until LED is off. Adjustment can be done while connected to the

control circuitry if the trip delay is set at maximum. To increase

sensitivity, multiple turns may be made through the ECS’s

toroidal sensor. The appropriate trip point range is determined by

multiplying the amperage load by the number of turns/passes

through the toroidal sensor. When using an external CT, select

a 2VA, 0-5A output CT rated for the current to be monitored.

Select ECS adjustment range 0. Pass one secondary wire

lead through the ECS toroid and connect the secondary leads

together.

Wiring Diagram

V = Voltage

I> = Overcurrent

I< = Undercurrent

W = Insulated Wire Carrying

Monitored Current

Relay contacts are isolated.

Arrow on the toroid points

toward the load.

Features & Benefits

FEATURES

Built-in toroidal

current sensing

Encapsulated

Adjustable mode, trip

point and trip delay

BENEFITS

Eliminates need to install stand-alone

current transformer and provides isolation from

monitored circuit

Protects against shock, vibration, and humidity

Provides flexibility for use in many applications

Allows control of AC voltage loads

Ordering Information

See next page.

10A, SPDT isolated

relay output

Accessories

P1015-13

(AWG 10/12),

P1015-64

(AWG 14/16),

P1015-14

(AWG 18/22)

Female Quick Connect

These 0.25 in. (6.35 mm) female terminals are

constructed with an insulator barrel to provide

strain relief.

www.littelfuse.com/ecs

www.littelfuse.com/

Rev: 1-A-062716

1-A-101218

ECSH21F2.5C Related Products

	ECSH21F2.5C	ECSH4HF.08D	ECS31AC	ECSH3HF0.08D	ECSH31F.08D	ECSH41F.08D	ECSH34F.08C
Description	Industrial current sensor 24VAC ISOLATED SPDT CURRENT SENSOR	Industrial current sensor 120VAC ISOLATED SPDT CURRENT SENSOR	Industrial current sensor 24VDC ISOLATED SPDT CURRENT SENSOR	Industrial current sensor 24VDC ISOLATED SPDT CURRENT SENSOR	Industrial current sensor CURRENTSENSOR	Industrial current sensor 120VAC ISOLATED SPDT CURRENT SENSOR	Industrial current sensor 24VDC ISOLATED SPDT CURRENT SENSOR
Maker	Littelfuse	Littelfuse	Littelfuse	Littelfuse	Littelfuse	Littelfuse	Littelfuse
Product Category	Industrial current sensors	Industrial current sensors	Industrial current sensors	Industrial current sensors	Industrial current sensors	Industrial current sensors	Industrial current sensors
Current rating	20 A	50 A	20 A	50 A	20 A	20 A	4 A
sensor type	Closed Loop	Closed Loop	Closed Loop	Closed Loop	Closed Loop	Closed Loop	Closed Loop
Response time	1 s	2 s	7 s	2 s	2 s	2 s	1 s
Frequency Range	45 Hz to 500 Hz	45 Hz to 500 Hz	45 Hz to 500 Hz	45 Hz to 500 Hz	45 Hz to 500 Hz	45 Hz to 500 Hz	45 Hz to 500 Hz
high	44.5 mm	44.5 mm	44.5 mm	44.5 mm	44.5 mm	44.5 mm	44.5 mm
Insulation voltage	2500 V	2500 V	2500 V	2500 V	2500 V	2500 V	2500 V
length	88.9 mm	88.9 mm	88.9 mm	88.9 mm	88.9 mm	88.9 mm	88.9 mm
Encapsulation	Bulk	Bulk	Bulk	Bulk	Bulk	Bulk	Bulk
series	ECS	ECS	ECS	ECS	ECS	ECS	ECS
width	63.5 mm	63.5 mm	63.5 mm	63.5 mm	63.5 mm	63.5 mm	63.5 mm
Maximum operating temperature	+ 60 C	+ 60 C	+ 60 C	+ 60 C	+ 60 C	+ 60 C	+ 60 C
Minimum operating temperature	- 40 C	- 40 C	- 40 C	- 40 C	- 40 C	- 40 C	- 40 C
Working power voltage	24 VDC	120 VAC	120 VAC	24 VDC	24 VDC	120 VAC	24 VDC
Factory packaging quantity	1	1	1	1	1	1	1
unit weight	181.437 g	181.437 g	181.437 g	181.437 g	181.437 g	181.437 g	181.437 g
Shipping restrictions	This product may require additional documentation for export from the United States.	This product may require additional documentation for export from the United States.	This product may require additional documentation for export from the United States.	-	-	This product may require additional documentation for export from the United States.	-

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