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3pcs AC Overcurrent Protection Sensor Module, 0.35 A Current Transformer with Relay Output, 5 V Supply
- Item #: 9SIVTNBM4Y3840
- Mfr. Part #: C75J*OYJ*G1*0819-362
- AC 0.35 A Overcurrent Detection With Relay Output Uses a builtin current transformer to sense singlephase AC current from 0.3 A to 5 A; triggers an onboard relay when the set threshold is exceeded; provides clear switch output; enables automatic load disconnect and basic overcurrent protection; NonContact Current Transformer Sensing Measures AC current without direct electrical contact; improves isolation between the load and control circuit; reduces wiring risk; supports stable detection across 20 Hz to 400 Hz; suitable for monitoring current flow through insulated conductors; Adjustable Overcurrent Threshold Control Onboard potentiometer allows fine adjustment of the trip point; detection sensitivity can be tuned by resistance setting; supports precise matching to different load limits; helps engineers define clear and repeatable overcurrent response behavior; Standard Relay Contacts For Flexible Control Provides COM, NO, and NC relay terminals; supports normally open or normally closed control logic; enables direct switching of external circuits; simplifies integration into AC protection and control designs without additional interface modules; 5.0 V LowPower Operation And Compact Board Operates from a DC 5.0 V supply with working current below 20 mA; compact 38 × 44 mm PCB with mounting holes; supports wire diameters up to 5.2 mm; easy to install in spacelimited AC monitoring projects
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Overview
Specs
Reviews
Product Overview 5A AC Overcurrent Protection Sensor Module using a current transformer for noncontact AC current detection. When current exceeds the set threshold, the onboard relay is triggered to control external circuits. Ideal for AC load protection and safety control systems.
1.
Product Parameters Sensor Type: AC current transformer + relay Detection
Current Range: AC 0.35
A Working Voltage: DC 5.0
V Working Current: <20 mA Output Type: Relay switch signal Relay Contacts: COM / NO / NC Operating Frequency: 20 Hz400 Hz Threshold Setting: Adjustable potentiometer Max Wire Diameter: 5.2 mm Mounting Hole Diameter: 3 mm Hole Spacing: 52.5 mm Board Size: 38 × 44 mm Operating Temperature: 40 °C to +85 °C
2. Pin Function
Description VCC (IN+): DC power input positive
GND: DC power ground
COM: Relay common terminal
NO: Normally open contact
NC: Normally closed contact
3. Common Questions & Answers (FAQ)
Q1: What type of current can this module detect?
A1: It detects singlephase AC current only.
Q2: How is the overcurrent point set?
A2: By adjusting the onboard potentiometer.
Q3: What happens when overcurrent occurs?
A3: The relay is energized and switches its contacts.
Q4: Is the detection isolated from the load?
A4: Yes, current is sensed via a current transformer.
Q5: Can it directly control external circuits?
A5: Yes, using the relay COM, NO, and NC contacts.
1.
Product Parameters Sensor Type: AC current transformer + relay Detection
Current Range: AC 0.35
A Working Voltage: DC 5.0
V Working Current: <20 mA Output Type: Relay switch signal Relay Contacts: COM / NO / NC Operating Frequency: 20 Hz400 Hz Threshold Setting: Adjustable potentiometer Max Wire Diameter: 5.2 mm Mounting Hole Diameter: 3 mm Hole Spacing: 52.5 mm Board Size: 38 × 44 mm Operating Temperature: 40 °C to +85 °C
2. Pin Function
Description VCC (IN+): DC power input positive
GND: DC power ground
COM: Relay common terminal
NO: Normally open contact
NC: Normally closed contact
3. Common Questions & Answers (FAQ)
Q1: What type of current can this module detect?
A1: It detects singlephase AC current only.
Q2: How is the overcurrent point set?
A2: By adjusting the onboard potentiometer.
Q3: What happens when overcurrent occurs?
A3: The relay is energized and switches its contacts.
Q4: Is the detection isolated from the load?
A4: Yes, current is sensed via a current transformer.
Q5: Can it directly control external circuits?
A5: Yes, using the relay COM, NO, and NC contacts.
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
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Return Policies
- Return for refund within: 30 days
- Return for replacement within: 60 days
- This item is covered by NovaStar Tech Return Policy
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