Current Sensing Switch, AC 0.2A-200A, NO/NC

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SKU: SUCH-ACC-SW

$59.99

● Normally open/Normally closed ● Measuring range AC 0.2/0.5A-100/200A ● Aperture 10mm/20mm ● FCC/CE certification, self-powered

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Overview
Specs
Application
FAQ
Reviews

Overview

SUCH current sensing switch is a self-powered device designed for reliable AC current monitoring in industrial and automation systems. With a wide measuring range (0.2A/0.5A to 100A/200A) and selectable normally open or normally closed output, the over current sensor directly provides PLC signals without the need for external power. Featuring a compact design with 10mm or 20mm aperture options, FCC/CE certification, and compatibility with photoelectric sensors, this current switch enhances overload protection and boosts production efficiency.

Feature

Wide Current Detection Range: SUCH current sensing switch supports AC current monitoring from 0.2A to 200A, making it ideal for a variety of industrial and automation applications.
No External Power Supply Required: Self-powered design with dry contact output, eliminating the need for external power and simplifying installation.
PLC Signal Output: Directly interfaces with PLC systems, enabling automated current sensing, overload protection, and interlock control.
Certified Safety Standards: The current switch complies with FCC and CE certifications, ensuring safe operation and electromagnetic compatibility in industrial environments.
Efficiency Enhancement: Can be paired with external photoelectric sensors on production lines to significantly improve manufacturing efficiency.

Detail

Current sensing switch detail

Mode Description

Current sensing switch mode description alert

Current sensing switch mode description plc

Current sensing switch mode description protect

Specs

Maximum Leakage Current	0.1A
Contact Capacity	0.3A @ 240V AC/DC
Response Time	<200ms
Maximum Overload	100%
Operating Temperature	-20~60°C
Power Supply Method	Self-powered, no external power needed
Hysteresis	<1%
Warranty Period	2 years
Repeatability	100%
IP Waterproof Rating	IP30
Description	Outputs a switch signal by detecting current through the perforation

Range Parameters

Normally Open
Measuring Range	Aperture	Product Size
0.2-30A	10mm	65×25×47mm
0.2-50A	10mm	65×25×47mm
0.5-100A	20mm	80×27×70mm
0.5-200A	20mm	80×27×70mm
Normally Closed
Measuring Range	Aperture	Product Size
0.2-30A	10mm	65×25×47mm
0.2-50A	10mm	65×25×47mm
0.5-100A	20mm	80×27×70mm
0.5-200A	20mm	80×27×70mm

Application

Current Overload Protection

PLC and Automation Control System

HVAC Systems and Fan Control

FAQ

Q1: What is the difference between NO (Normally Open) and NC (Normally Closed)? ❯

NO (Normally Open): The switch remains open (no output signal) when the current is below the threshold. It closes (outputs a signal) when the current exceeds the threshold.
NC (Normally Closed): The switch remains closed (outputting a signal) when the current is below the threshold and opens (stops signal) when the current exceeds the threshold.

Q2: What is a Current Sensing Switch? ❯

A current sensing switch is a non-contact sensor that monitors the flow of AC current through a conductor. It detects current levels and outputs a switch signal (either Normally Open or Normally Closed) to activate alarms, relays, or control circuits.

Q3: Does this switch need an external power supply? ❯

No, most current sensing switches in this range are self-powered. They operate by harvesting energy directly from the AC line being monitored, making them easy to install and maintain.

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