Panasonic ALQ124 24 V 10 A Power Relay ⚡

The Panasonic ALQ124 is a compact, high-capacity power relay engineered for reliable switching in space-constrained designs. With a 24 V DC coil and up to 10 A contact rating, it is well suited for power control in appliances, industrial systems, and embedded projects. Ideal for integration with Arduino, Raspberry Pi, and other microcontroller-based control circuits using an appropriate driver stage.

Key Features 🔧

• Compact size for efficient PCB and enclosure layout in electronic and electrical devices.
• High switching capacity: typically up to 10 A at 250 V AC or 8 A at 30 V DC.
• 24 V DC coil (designation “24” in ALQ124) for stable actuation in industrial and HVAC control rails.
• Versatile contacts: available as SPST-NO (1 Form A) or SPDT (1 Form C).
• High insulation resistance: > 100 MΩ at 500 V DC for safe, reliable operation.
• Dielectric strength: up to 5000 V between coil and contacts for enhanced isolation.
• Fast response: operate time ≤ 10 ms, release time ≤ 5 ms.
• Wide temperature range: −40°C to +85°C for robust performance in varied environments.
• Shock/Vibration tolerance: functional shock 100 m/s², destructive shock 1000 m/s²; vibration 10–55 Hz at 1.5 mm double amplitude.

Applications 🚀

• Home appliances (air conditioners, washing machines, microwaves) for switching high-power loads.
• Industrial equipment and control panels for robust power circuit management.
• HVAC systems to control motors, compressors, and blowers.
• Office equipment including printers and copiers for reliable power management.
• Automotive electronics for various auxiliary load controls where compact, reliable relays are required.

Technical Specifications 📐

• Contact arrangement: 1 Form A (SPST-NO) or 1 Form C (SPDT)
• Contact material: Silver alloy
• Contact rating: typically 10 A at 250 V AC; 8 A at 30 V DC
• Coil voltage: 24 V DC
• Coil resistance: approx. 1440 Ω (24 V DC model; ≈0.4 W coil power)
• Operate time: typically ≤ 10 ms
• Release time: typically ≤ 5 ms
• Insulation resistance: > 100 MΩ at 500 V DC
• Dielectric strength: up to 5000 V (coil-to-contacts)
• Shock resistance: functional 100 m/s²; destructive 1000 m/s²
• Vibration resistance: 10–55 Hz at 1.5 mm double amplitude
• Operating temperature: −40°C to +85°C

Integration Tips for Arduino/Raspberry Pi 💡

• Drive the 24 V coil using a suitable NPN transistor or logic-level MOSFET and a flyback diode; do not drive the coil directly from a microcontroller GPIO.
• Use a dedicated 24 V DC supply for the coil. Level-shift and isolate control signals as needed (e.g., via an optocoupler).
• Observe creepage/clearance and choose appropriate PCB trace widths for 10 A load currents.
• When switching inductive loads (motors, solenoids), add snubbers/RC networks or MOVs on contacts to extend relay life.

For comprehensive ratings, safety notes, and detailed curves, please refer to the official datasheet.