Our Railway Signalling Relay is a high-performance, compact relay specifically designed to meet the demanding needs of railway signaling systems. With its robust construction, advanced features, and reliable operation, this relay ensures continuous and safe train operation by controlling signaling circuits with precision.
Key Features:
Multi-Contact Load Options: Available with 5A or 10A switching capacity to suit a wide range of signaling applications, providing optimal current handling for reliable operation.
Contact Forms: Choose from 2C (DPDT), 3C, or 4C (4PDT) contact configurations, offering versatility in system integration.
Visual Indicators:
Flag Indicator: Clearly shows the manual or powered status of the relay for easy operation monitoring.
LED Indicator: Indicates the coil ON/OFF status for real-time feedback, ensuring users can quickly detect operational states.
Manual Operation: Equipped with a rotary test button for circuit testing, enabling easy manual testing and system diagnostics.
Wide Coil Voltage Range: Supports a broad range of voltages from 6–110VDC and 6–240VAC, ensuring compatibility with diverse railway signaling systems.
High Reliability: Designed for long electrical and mechanical life, offering reduced downtime and ensuring continued operation even in harsh conditions.
Compact Design: Space-saving and easy to install in panels or PCBs, ideal for applications with limited space.
Applications:
Railway Signaling Systems: Ensures precise switching of signaling circuits, maintaining safe train movements.
Train Control Systems: Facilitates communication between signaling devices and control stations, improving the overall efficiency and safety of operations.
Track Switching Mechanisms: Integral to the switching and routing of trains across tracks, ensuring smooth and safe transitions.
Model Description:
| Code | Description |
| BMY5 | Base Model |
| 2C/3C/4C | Contact Form (2C=DPDT, 3C=3P, 4C=4PDT) |
| 5/10 | Contact Load (5=5A, 10=10A) |
| S/P | Terminal Type (S=Plug-in, P=PCB) |
| C | Shell Type (Standard) |
| M | Manual Test Button |
| 4 | Rotary Button with Self-Locking |
| W | No Built-in Mechanical Indicator |
| L | LED Indicator (AC=Red, DC=Green) |
Contact Specifications:
| Parameter | 2C5 / 3C5 / 4C5 |
|---|---|
| Resistive Load | 5A @ 28VDC / 277VAC (UL) |
| Motor Load | 1/10 HP @ 120VAC, 1/10 HP @ 240VAC |
| Switching Power | 150W, 1385VA |
| Max Switching Current | 5A |
| Contact Material | AgNi Alloy |
| Initial Contact Resistance | ≤50mΩ |
General Electrical & Mechanical Parameters:
| Parameter | Value |
| Pickup Time (rated voltage) | ≤20ms |
| Release Time (rated voltage) | ≤15ms |
| Pickup Voltage (23°C) | DC: ≤75%, AC: ≤80% of rated voltage |
| Release Voltage (23°C) | DC: ≥10%, AC: ≥30% of rated voltage |
| Coil Power | DC: 0.9W, AC: 1.2VA |
| Insulation Resistance | 500MΩ @ 500VDC |
| Electrical Life | 100,000 operations |
| Mechanical Life | 10,000,000 operations |
Environmental & Safety Specifications:
| Parameter | Value |
| Operating Temperature | –25°C to +50°C |
| Humidity | 5% to 85% RH |
| Atmospheric Pressure | 86–106 kPa |
| Vibration Resistance | 10–55Hz, 1.0mm double amplitude |
| Impact Stability | 200 m/s² |
| Impact Strength | 1000 m/s² |
