Overview of Omron Electronics G5RL-1A4-E-TV8 DC24

The Omron G5RL-1A4-E-TV8 DC24 is a compact, high-performance general-purpose electromagnetic relay widely used in industrial automation, control systems, telecommunications, and various other applications requiring reliable switching of electrical loads. It is designed to operate on a 24 V DC coil voltage and offers a single-pole double-throw (SPDT) contact configuration, providing versatile switching capabilities in a small footprint.

Coil Specifications

The relay coil is rated for 24 V DC operation, making it compatible with standard industrial control voltages. The coil resistance is typically around 400 Ω, which results in a nominal coil current of approximately 60 mA when energized at 24 V DC. This moderate coil current allows for efficient driving by common control circuits and microcontrollers.

The coil is designed for continuous energization with robust insulation and thermal stability, ensuring reliable operation over prolonged duty cycles. The coil withstands voltage surges and includes specifications for maximum allowable coil voltage and coil power consumption to prevent overheating and coil damage.

Contact Configuration and Ratings

The G5RL-1A4-E-TV8 DC24 features a single-pole double-throw (SPDT) contact arrangement, meaning it has one common terminal that switches between normally closed (NC) and normally open (NO) contacts. This configuration is suitable for switching AC or DC loads with different control requirements.

Key contact ratings include:

* Contact Material: Silver alloy contacts to ensure low contact resistance, high conductivity, and excellent durability under electrical load.
* Rated Load: The relay can handle resistive loads up to 10 A at 250 V AC or 10 A at 30 V DC, allowing switching of significant currents in various applications.
* Minimum Switching Load: The relay can reliably switch loads as low as 100 mA at 5 V DC, enabling its use in low-current signal switching.
* Maximum Switching Voltage: The contacts are rated for a maximum switching voltage of 250 V AC or 30 V DC.
* Maximum Switching Current: Up to 10 A continuous switching current.
* Contact Resistance: Typically less than 100 milliohms upon initial operation, ensuring efficient current flow and minimal voltage drop.
* Contact Life: Electrical life expectancy typically exceeds 100,000 operations at rated load, while mechanical life can exceed 10 million operations, indicating high durability in both energized and de-energized states.

Mechanical and Physical Characteristics

The relay is housed in a compact, plastic sealed enclosure with flammability rating UL 94V-0, providing protection against dust and mild environmental contamination. The TV8 suffix denotes that the relay meets specific safety standards related to insulation and creepage distances suitable for high-voltage applications.

Typical dimensions are approximately 29.0 mm (length) × 12.7 mm (width) × 15.7 mm (height), making it suitable for dense PCB layouts and space-constrained designs. The relay employs through-hole pin terminals compatible with standard PCB sockets or direct soldering, enabling easy replacement or upgrading in existing designs.

Electrical and Environmental Specifications

* Operate Time: Approximately 10 ms, providing quick response in control circuits.
* Release Time: Approximately 5 ms, ensuring rapid switching off.
* Dielectric Strength: Coil to contact insulation withstands voltages of up to 5,000 V AC for one minute, ensuring strong electrical isolation.
* Insulation Resistance: Minimum 1,000 MΩ at 500 V DC, contributing to reliable operation without leakage currents.
* Operating Temperature Range: From -40°C to +85°C, supporting use in harsh industrial environments.
* Shock Resistance: Designed to withstand mechanical shocks up to 10 G, suitable for mobile or vibration-prone applications.
* Vibration Resistance: Capable of tolerating vibrations of 10 to 55 Hz with an amplitude of 1.5 mm, ensuring operational stability.

Applications

The Omron G5RL-1A4-E-TV8 DC24 relay is commonly employed in:

* Industrial automation for switching motors, solenoids, heaters, and lights.
* Control panels where isolation between control circuitry and power loads is essential.
* Communication equipment for signal routing and switching.
* HVAC systems for controlling valves and fans.
* Automotive and transportation electronics requiring robust relay switching.
* Home appliances and consumer electronics with medium current switching needs.

Key Specifications Summary

* Relay Type: Electromagnetic general-purpose relay
* Coil Voltage: 24 V DC
* Coil Resistance: Approx. 400 Ω
* Coil Current: Approx. 60 mA
* Contact Configuration: SPDT (1 Form C)
* Contact Material: Silver alloy
* Contact Rating: 10 A at 250 V AC / 10 A at 30 V DC
* Minimum Switching Load: 100 mA at 5 V DC
* Maximum Switching Voltage: 250 V AC / 30 V DC
* Contact Resistance: <100 mΩ (initial)
* Electrical Life: >100,000 operations at rated load
* Mechanical Life: >10 million operations
* Operate Time: ~10 ms
* Release Time: ~5 ms
* Dielectric Strength: 5,000 V AC coil to contact
* Insulation Resistance: >1,000 MΩ at 500 V DC
* Operating Temperature: -40°C to +85°C
* Shock Resistance: 10 G
* Vibration Resistance: 10–55 Hz, 1.5 mm amplitude
* Package: Compact sealed plastic enclosure, 14-pin DIP style

Summary

The Omron G5RL-1A4-E-TV8 DC24 is a versatile, high-quality general-purpose relay engineered for reliable switching in demanding industrial and commercial applications. Its robust contact ratings, wide operating temperature range, and excellent insulation characteristics make it a dependable choice for controlling various AC and DC loads. The compact size and standardized pinout allow easy integration into a variety of control systems, while the coil and contact design ensure efficient operation with long service life.