Ametek PF1-120-25-FK SCR Controller

AMETEK PF1-120-25-FK is a PF1-series phase-fired SCR power controller from AMETEK HDR Power Systems designed for single-phase regulation of AC power. Configured for 120 VAC input, it provides a 25 A current rating as indicated by the model number PF1-120-25-FK, and supports operation at standard line frequencies of 50 or 60 Hz. The PF1 family is intended for enclosure-mounted use with IP00 protection, and its control inputs can be configured via a 5 kΩ potentiometer, a dry-contact closure, or an external temperature or process controller signal, offering flexible integration with diverse control architectures. As a phase-fired controller, it adjusts the portion of each AC cycle delivered to the load, enabling precise power control for single-phase loads in industrial processes. The PF1-120-25-FK is sold individually and is part of HDR's broader SCR power-control product line, which includes models across a range of voltages and current ratings, all sharing the same fundamental phase-control approach.