The 24V Signal Relay is engineered to offer precise, reliable control for electrical systems requiring low-voltage signal switching. Perfect for industrial automation, automotive systems, and control panels, this relay ensures seamless operation across various applications.
Key Features:
Sealed Reed Contacts: Nitrogen-sealed reed contacts for long life, high reliability, and maintenance-free operation.
Epoxy Sealed Housing (IP5x): Durable epoxy sealed housing to protect against harsh environments; resistant to high temperature, humidity, vibrations, and shocks.
Contact Types: Multiple configurations available, including 4NO, 2NO 2NC, 3NO 1NC, and 4NC for flexible applications.
Wide Contact Load Range: Handles contact voltages from 10V to 220V AC/DC and current from 10mA to 1A, offering versatility for various electrical systems.
Long Mechanical Lifespan: Up to 100 million switching cycles for extended use.
LED Status Indicator: Built-in LED light to show the working status of the relay.
High-Voltage Design: Rated for voltage resistance of 1500V or higher, with high insulation resistance of at least 200MΩ, ensuring safe and reliable operation.
Shock-Resistant Mounting: Dedicated socket with anti-vibration spring clips to keep the relay securely in place, preventing disconnection.
Standard 11-Pin Plug: Easily interchangeable with strong compatibility for simple integration.
DC Coil: Optimized for DC voltage applications.
| Parameter | Specification |
|---|---|
| Product Model | MRT1-4A-D |
| Contact Form | 4 NO (4 Normally Open) |
| Application Suitability | Rail Transit, Door Interlocking, Automatic Parking, Petrochemical, Power Electronics, Elevators, Medical Devices, Port Facilities, Cranes, Automotive, Machine Tools, General Industrial Equipment, Water Treatment Plants, Steelmaking Blast Furnaces |
| Front Protection Level (IP) | IP5x |
| Rated Insulation Voltage | 250 V AC |
| Short-Time Withstand Current | 8 A, 10 s (TB/T 2762-2017) |
| Rated Operating Current | AC: 0.3 A / 220 V AC DC: 0.3 A / 110 V DC |
| Maximum Make Current | 1 A |
| Maximum Break Current | AC: 0.5 A DC: 0.5 A |
| Minimum Operating Voltage | 1 mA / 24 V |
| Dielectric Strength | Between Open Contacts: 500 V AC, 1 min Between Contacts/Coil, Different Reed Switches, All Terminals/Ground: 1500 V AC, 1 min |
| Insulation Resistance | Between Open Contacts: ≥200 MΩ at 500 V DC Between Contacts/Coil, Different Reed Switches, All Terminals/Ground: ≥200 MΩ at 1000 V DC |
| Initial Contact Resistance | ≤150 mΩ (6 V / 100 mA) |
| Minimum Contact Current | 1 mA |
| Operate Time | 20 ms |
| Bounce Time | 5 ms |
| Release Time | 30 ms |
| Contact Material (Optional) | Ru (Ruthenium) |
| Contact Melting Point | ≥2600 °C |





