Square D 8501 P04 AC/DC Pilot Duty Relay 110V

Square D 8501-P04 is a plug‑in pilot‑duty relay from the Square D 8501 family, designed to control pilot circuits with a 110 V nominal coil and AC or DC operation. The P04 variant can be obtained with different terminal configurations, including the P04‑S3 version with binder‑head screws or a version using pressure‑wire connectors, offering flexible wiring options for panel or control cabinet mounting. This relay is intended to energize low‑current pilot loads that drive larger control devices, such as solenoids or coils, enabling safe interfacing between control logic and higher‑current equipment in industrial applications. The 8501 family includes ratings for both AC and DC pilot duty, with the DC pilot duty rating specified for inductive loads like coils and solenoids, while the AC pilot duty rating covers common AC control loads. For exact electrical ratings, wiring details, and mounting accessories, consult the official 8501 data sheet and the P04 product sheet to ensure proper compatibility with your control circuit.