RLY03210 Compressor Start Relay - 50 Amp Coil, Compatible with Trane American Standard HVAC, for Air Conditioners and Compressors, 239V Pick Up / 135V Drop Out Fits 4A7B3024D1000AA, 4A7B3030D1000AA

Engineered to deliver reliable startup performance, this 50A relay switch ensures consistent power to your compressor, helping prevent hard starts, overheating, and premature system failures. Made from durable, high-quality components, it withstands the demands of continuous HVAC operation. Whether you’re a professional technician or a DIY repair enthusiast, the RLY03210 relay provides an easy-to-install, long-lasting solution for air conditioners, compressors, and heat pumps. Compatible with a wide range of HVAC models, this relay ensures your system runs smoothly and efficiently.

• Compatible with American Standard Trane Units Only 50A COIL, 502 CONTINUOUS COIL RATING, 60 HZ, 260-280V HOT PICKUP, 239-268V PICK UP, 60-135V DROP OUT, 13800 COIL RESISTANCE
• RLY03210 Replaces / Supersedes: RLY1869 RLY01869 RLY-1869 RLY3210 RLY-3210 RLY03210 3ARR22J4A4 and others.
• Compatible with: 2A6B3036A1000AA 2A6B3042A1000AA 2A6B3048A1000AA 2A6H3036A1000AA 2A6H3042A1000AA 2A6H3048A1000AA 2A6H8030A1000AA 2A6H8030A1000AB 2A6H8030B1000AA 2A6H8030B1000BA 2A6H8030C1000AA 2A6H8036A1000AA 2A6H8036A1000AB 2A6H8036B1000AA 2A6H8036B1000BA 2A6H8036C1000AA 2A6H8048A1000AA 2A6H8048A1000AB 2A6H8048B1000AA 2A6H8048B1000BA 2A6H8048C1000AA 2A6H8060A1000AA 2A6H8060A1000AB 2A6H8060B1000AA 2A6H8060B1000BA 2A6H8060C1000AA 2A6M3036A1000AA 2A6M3042A1000AA 2A6M3048A1000AA 2A7A3042A1000AA etc
• Compatible with: 2TTB3048A1000AA, 2TTR3042A1000AA, 2TTR3048A1000AA, 2TTZ9030A1000AA, 2TTZ9030A1000AB, 2TTZ9030B1000AA, 2TTZ9030B1000BA, 2TTZ9030C1000AA, 2TTZ9036A1000AA, 2TTZ9036A1000AB 2TTZ9048A1000AA 2TTZ9048A1000AB 2TTZ9048B1000AA 2TTZ9048B1000BA 2TTZ9048C1000AA 2TTZ9060A1000AA 2TTZ9060A1000AB 2TTZ9060B1000AA 2TTZ9060B1000BA 2TTZ9060C1000AA 2TWB3036A1000AA 2TWB3042A1000AA 2TWB3048A1000AA 2TWR3036A1000AA 2TWR3042A1000AA 2TWR3048A1000AA 2TWZ9030A1000AA 2TWZ9030A1000AB 2TWZ9030A1000AC etc
• Durable Construction – Designed with high-quality components, this HVAC relay switch resists overheating, corrosion, and wear, offering long-lasting performance under demanding conditions.
• Wide Compatibility – Works as a replacement relay for a variety of air conditioning and heat pump models, making it a versatile solution for HVAC repairs and maintenance.