Description
1756-L55M24 A-B Output module
Product Dimensions：
Product Description
Allen-Bradley relays are electromechanical or solid-state devices designed to control high-power or high-voltage circuits using low-power control signals. These relays serve as critical interfaces between PLCs, sensors, and field devices such as motors, solenoids, and lamps. A-B relays are widely used in industrial automation systems to provide electrical isolation, signal amplification, and safe switching of loads.
Product Specifications
| Parameter | Description |
|---|---|
| Type | Electromechanical Relay (EMR), Solid-State Relay (SSR), or Interface Relay |
| Coil Voltage | Typically 5V DC, 12V DC, 24V DC, 120V AC, or 240V AC (varies by model) |
| Contact Rating | Up to 10A at 250V AC or 30V DC (varies by relay type and model) |
| Contact Configuration | SPDT (Single Pole Double Throw), DPDT (Double Pole Double Throw), etc. |
| Isolation Voltage | Up to 4000V AC between coil and contacts |
| Switching Time | EMR: 5–20 ms; SSR: <1 ms |
| Operating Temperature | -40°C to +70°C (varies by model) |
| Mounting | DIN rail, socket, or panel mount |
| Certifications | UL, CSA, CE, RoHS compliant |
Product Advantages
- High Reliability: Designed for millions of operations under harsh industrial conditions.
- Electrical Isolation: Protects sensitive control components from high-voltage or high-current damage.
- Flexible Configurations: Available in multiple coil voltages, contact ratings, and mounting styles.
- Compact Design: Space-saving form factor suitable for dense control cabinets.
- Long Lifecycle: Especially true for solid-state relays with no moving parts.
- Wide Compatibility: Integrates seamlessly with Allen-Bradley PLCs and other industrial controllers.
Precautions
- Coil Voltage Matching: Ensure the coil voltage matches the control signal to prevent malfunction or damage.
- Load Type Consideration: Use relays rated for inductive, resistive, or capacitive loads accordingly.
- Heat Dissipation: SSRs may require heat sinks when switching high currents continuously.
- Wiring Precautions: Follow proper wiring diagrams to avoid short circuits or incorrect signal routing.
- Environmental Protection: Use enclosures or sealed relays in dusty, humid, or corrosive environments.
- Regular Maintenance: Periodically inspect electromechanical relays for contact wear or coil degradation.
Product Applications
- Industrial Automation: Used in control panels for switching motors, pumps, and valves.
- Process Control: Interfaces with PLCs to manage temperature controllers, pressure switches, and actuators.
- HVAC Systems: Controls compressors, fans, and heating elements in commercial and industrial HVAC units.
- Power Distribution: Used in switchgear and motor control centers for circuit protection and load switching.
- Lighting Control: Manages high-power lighting systems in stadiums, factories, and public infrastructure.
- Safety Circuits: Integrated into emergency stop circuits and safety relays for machine protection.
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
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