HLS-T90(15F)-A Power Relay — 24V DC Coil, 30A 250V

The HLS-T90(15F)-A is a rugged, high-reliability T90 power relay designed for demanding high-current switching in automotive and industrial systems. With a 30A contact rating and 24V DC coil, it provides dependable performance for motors, heaters, fans, and power distribution circuits. Its standard cube-style package makes it ideal for Arduino, Raspberry Pi, or PLC-based control systems using a transistor or MOSFET driver stage.

⚙️ Key Features

• High current capacity (30A): Reliable switching for motors, power supplies, and heavy AC/DC loads.
• Coil voltage: 24V DC nominal (also available in 12V DC versions).
• Contact configuration: SPST (1 Form A) or SPDT (1 Form C), depending on the variant.
• T90 standard package: Compact cube relay, compatible with common socket bases and PCB footprints.
• Durable and versatile: Excellent electrical and mechanical endurance for continuous-duty applications.

📐 Electrical Specifications

• Coil voltage: 24V DC
• Coil resistance: ~1600 Ω (typical)
• Contact rating: 30A @ 250V AC (resistive load)
• Operate time: ≤ 15 ms | Release time: ≤ 10 ms
• Insulation resistance: ≥ 100 MΩ (500 V DC)
• Dielectric strength: 1500 V AC between coil and contacts
• Mechanical life: ≥ 10 million operations

🚗🏭 Typical Applications

• Automotive: Headlights, blowers, pumps, and auxiliary systems
• Industrial automation: Power distribution, solenoids, valves, HVAC
• Energy systems: Inverters, chargers, UPS, and battery controllers
• Smart projects: Arduino or PLC control of high-power circuits

🤖 Integration Tips (Arduino / Raspberry Pi / Microcontrollers)

• Drive the coil via a transistor or MOSFET — do not connect it directly to GPIO pins.
• Add a flyback diode (e.g., 1N4148 or 1N5819) across the coil for transient protection.
• Use a 24V supply with shared ground to the MCU driver stage.
• Provide proper trace width or wiring for 30A current handling; include a fuse for safety.
• For inductive loads, add snubber or TVS protection to extend contact life.

📋 Notes

• Confirm the contact type (SPST or SPDT) before ordering.
• Derate current for inductive loads and elevated temperature environments.
• In automotive use, protect against load dump and voltage transients with TVS diodes.