This is the 5V variant of the A03B 1 Road 5V Low Level Solid State Relay Module with Fuse SSR 250V 2A Fuse in Relay Modules. Available at ₹94.40 (₹80.00 + GST) with free shipping across India.
A03B 1 Road 5V Low Level Solid State Relay Module with Fuse SSR 250V 2A Fuse
This is an OMRON 5V solid-state relay with a 240V, 2A output, featuring a resistance-type fuse rated for 240V and 2A. The input control signal voltage for this relay module operates as follows: a low-level state (0-2.5V) keeps the relay OFF, while a high-level state (3-5V) turns the relay ON.
The low-level trigger means that the triggering voltage between the input terminal and the negative electrode of the power supply is 0V, or that the trigger terminal voltage is lower than the positive supply voltage. When the voltage drops low enough, it triggers the relay, typically connecting the cathode of the power supply to the trigger terminal, which causes the relay to activate.
The module features blue KF301 terminals for easy connection to the control lines.
Specifications:
| Operating Voltage (VDC): | 3.3 ~ 5 |
|---|---|
| Trigger Voltage (VDC) | 5 |
| Supply Current (A) | 2mA |
| Switching Voltage (VAC) | 240@2A |
| Operating Temperature (°C) | -40 to 85 |
| Opt. Relative Humidity(RH) | 20% ～ 85% |
| Storage condition (℃) | – 65 to 125 |
| Length (mm): | 34 |
| Width (mm): | 26 |
| Height (mm): | 22 |
| Weight (g): | 10 |
Package Includes
1 x A03B 1 Road 5v Low-Level Solid State Relay Module with Fuse SSR 250V 2A Fuse
IoT Smart Lock with ESP32 and Fingerprint Sensor
An IoT smart lock with ESP32 fingerprint sensor is one of the most impressive and practically useful home...
Read More →
ESP32 GPS Tracker: NMEA Parsing with NEO-6M Module
Building an ESP32 GPS tracker with NMEA parsing using the NEO-6M module is one of the most exciting...
Read More →
ESP32 BLE Beacon: Indoor Location Tracking with iBeacon
Building an ESP32 BLE beacon with iBeacon protocol is one of the most practical and exciting applications of...
Read More →Technical Specifications
| Model | A03B |
|---|---|
| Voltage Range | 5V - 250V |
| Current Rating | 2A |
| SKU | AI0320 |
| Weight | 0.01 kg |
| Availability | Out of Stock |
Applications & Use Cases
The A03B 1 Road 5V Low Level Solid State Relay Module with Fuse SSR 250V 2A Fuse is a versatile relay modules used across a wide range of applications including home automation, industrial control, IoT projects, Arduino/Raspberry Pi interfacing, and motor control.
Common use cases:
- Switching high-voltage AC appliances with a microcontroller
- Building a smart home relay board
- Automating irrigation pumps in agriculture
This product is ideal for electronics engineers, IoT developers, and automation hobbyists.
Technical Tip: Use optocoupler-isolated relay modules to protect your microcontroller. Match relay coil voltage to your MCU logic level (3.3V or 5V).
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
Aditya Sen (verified owner) –
This A03B 1 Road 5V Low Level is robust and well built. PCB quality is excellent.
Divyansh Malhotra (verified owner) –
Superb A03B 1 Road 5V Low Level! Using it to control my garden irrigation system. Very dependable.
EMPROTEK Software Solutions Private Limited (verified owner) –
Nikita Saxena (verified owner) –
Nice A03B 1 Road 5V Low Level. Relay clicks are clear. Terminal connections are solid.
Vishal Parekh (verified owner) –
Perfect A03B 1 Road 5V Low Level for my IoT project. Controlling appliances remotely works flawlessly.
Ankur Menon (verified owner) –
Great quality A03B 1 Road 5V Low Level. All channels working. Optocoupler isolation is a nice feature.
Rahul Mehta (verified owner) –
Great quality A03B 1 Road 5V Low Level. All channels working. Optocoupler isolation is a nice feature.
Vaishali Kohli (verified owner) –
Great A03B 1 Road 5V Low Level. Easy to integrate with NodeMCU for WiFi-based control.
Om Choudhury (verified owner) –
Decent A03B 1 Road 5V Low Level. Trigger voltage is compatible with both 3.3V and 5V logic.
Naman Tandon –
Outstanding quality! This A03B 1 Road 5V Low Level has been running 24/7 for months without a single failure.
Dinesh Sharma –
Love this A03B 1 Road 5V Low Level. Click sound is satisfying and switching is instantaneous.
Chetan Mukherjee (verified owner) –
This A03B 1 Road 5V Low Level works perfectly with my Arduino. Easy to wire and control.
Divyansh Saini (verified owner) –
Superb A03B 1 Road 5V Low Level! Using it to control my garden irrigation system. Very dependable.
Naveen Kohli (verified owner) –
Good quality A03B 1 Road 5V Low Level. Using it for my college project. Performs as expected.
Darshan Tiwari (verified owner) –
Very satisfied. My smart home system runs on these A03B 1 Road 5V Low Level modules. Totally reliable.
Kiara Shah (verified owner) –
This A03B 1 Road 5V Low Level works perfectly with my Arduino. Easy to wire and control.
Arun Solanki (verified owner) –
Nice A03B 1 Road 5V Low Level. Relay clicks are clear. Terminal connections are solid.
Prateek Vohra –
Superb A03B 1 Road 5V Low Level! Using it to control my garden irrigation system. Very dependable.
Vivek Kulkarni (verified owner) –
Great A03B 1 Road 5V Low Level. Easy to integrate with NodeMCU for WiFi-based control.
Urmi Bhandari (verified owner) –
Very satisfied. My smart home system runs on these A03B 1 Road 5V Low Level modules. Totally reliable.
Subhrendu Nath (verified owner) –
i purchased to understand its application
AGOSTINO Pereira (verified owner) –
Excellent products
Aman Kohli (verified owner) –
This A03B 1 Road 5V Low Level is robust and well built. PCB quality is excellent.
Farhan Tiwari –
Good quality A03B 1 Road 5V Low Level. Using it for my college project. Performs as expected.
Abhishek Choudhury (verified owner) –
Good quality A03B 1 Road 5V Low Level. Using it for my college project. Performs as expected.
Yashwant Vohra –
Superb A03B 1 Road 5V Low Level! Using it to control my garden irrigation system. Very dependable.