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This SPDT fan relay serves as the direct OEM replacement for B1217301
also known as the EK-165S
providing versatile input compatibility for digital controllers and 24V transformers
Simplified Field Assembly: Streamlines the actuator installation process
System Sensor 2D51 Smoke Detector Els PW 17895 This SPDT fan relay servesThe System Sensor 2D51 is a low profile plug in photoelectric smoke detector engineered specifically for special application smoke detection within HVAC duct systems. This head is designed for seamless integration with the D4P120 power board and requires a B210LP detector base for proper field installation. Featuring a 24Vac dc or 120Vac supply voltage range when used with the appropriate power module, the 2D51 utilizes advanced photoelectric sensing
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