5A 12V AC over-current protection sensor module

Integrated Hardware Over-Current Relay Protection: Features an onboard 12V DC relay that automatically triggers and switches loads when AC line current exceeds the set threshold.

0A to 5A AC Current Detection Range: Equipped with an onboard precision current transformer coil to accurately monitor single-phase AC currents up to 5A RMS.

Onboard Precision Threshold Potentiometer: Includes a multi-turn trimmer potentiometer to precisely calibrate the over-current trigger threshold for custom protection limits.

Dual Output Signal Architecture: Provides simultaneous relay switch contact outputs (NO/COM/NC) alongside digital switching state indicators for external controller hardware.

Galvanic Transformer Isolation: Safely monitors high-voltage AC load lines via non-contact magnetic current sensing, fully isolating control circuitry.

Housing & Board Material: High-grade FR-4 glass-epoxy PCB with onboard current transformer coil, 12V blue relay, blue trimmer potentiometer, status LEDs, and terminal blocks.

Technical Specifications:

Module Operating Supply Voltage: 12V DC.

AC Current Detection Range: 0A - 5A AC.

Output Type: Relay Switch Output (NO, COM, NC) + Digital Status Output.

Color: Blue PCB with Blue Relay, Black Transformer Enclosure, and Green Screw Terminals.

Usage Advice: Supply 12V DC to the power input terminals; route target AC load line through the current transformer aperture, and wire control loads to the relay terminal block (COM/NO).

Maintenance: Ensure terminal block screws are securely tightened; keep PCB clean, dry, and protected from static discharge and moisture.

Essential AC Over-Current Safeguard Module: Position as an instant hardware-level safety module for AC motor protection, pump jam detection, smart power strip safety, and automated fault cutoff switches.

Highlight Autonomous Hardware Relay Switching: Emphasize how the built-in relay allows direct hardware load disconnection upon over-current events without requiring an external microcontroller or software intervention.

Recommended Cross-Sell Add-ons: Pair with 5A Single-Phase AC Current Sensor, (Analog) AC Current Transformer, AC Single Phase Voltage Transformer Sensor, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Current Sensor collection page as your standard 5A 12V AC over-current protection module with relay output.