5 pieces included in the set Relay JQX 14FF package contains 5 relays Models and voltages HF14FF 012 1HS for 12VDC HF14FF 005 1HS for 5VDC HF14FF 024 1HS for 24VDC Function and type Phase Monitoring Relays These devices monitor the presence and balance of three phases and provide protective action when a phase fault is detected Example product code HF14FF 024 1HS Key benefits Reliable phase monitoring to protect motors and equipment from phase loss or imbalance Supports DC control circuits at 5VDC, 12VDC and 24VDC Suitable for integration into control panels, motor starters and automation systems Part of a standardized relay family for straightforward replacement and compatibility with typical installation practices Specifications and compatibility Designed for DC coil voltages of 5V, 12V and 24V Each unit is a HF14FF 1HS variant, with a specific DC voltage rating Compatible with JQX 14FF relay systems and standard control circuits Use scenarios Protect 3 phase motors in manufacturing lines by detecting phase loss and initiating protective actions Install in electrical control panels for HVAC systems or pumps to monitor phase presence and prevent equipment damage Integrate into industrial automation setups to provide early fault detection and safe shutdown in response to phase abnormalities Notes The set includes multiple voltage variants to match different control circuit requirements The product code example HF14FF 024 1HS can be used to identify the 24VDC version for ordering or documentation