Schneider Electric 725BXXSC3ML-120A Power relay, SE Relays, 25A, 2NO, 120VAC, LED push button, screw terminals, DIN or panel mount

Description

Features

• The 725BXXSC3ML-120A is a heavy-duty electromechanical power relay belonging to the specialized Harmony 725 series from Schneider Electric. Engineered explicitly for high-capacity current management, this device bridges the gap between traditional low-power plug-in control relays and larger motor contactors. It provides a compact, reliable mechanical switching node commonly deployed in energy-heavy infrastructures such as electric vehicle (EV) charging stations, computer numerical control (CNC) machinery, and industrial HVAC compressor circuits.
• The output switching architecture features a Double Pole Single Throw, Normally Open contact layout.
• The output switching architecture features a Double Pole Single Throw, Normally Open (DPST-NO / 2 Form A) contact layout. Built with high-grade silver alloy contact points, it carries a massive conventional enclosed thermal current rating of 25 Amps at maximum switching limits up to 240V AC under IEC standards and 277V AC under UL parameters. This high current-carrying capacity allows it to directly control high-power inductive and resistive loads, supporting raw power thresholds up to 1.3 kW for tungsten lighting or motor ratings up to 1 horsepower at 120V AC and 2 horsepower at 277V AC.
• The internal operating coil is wound for standard AC operation, requiring a nominal control circuit supply voltage of 120V AC across standard 50/60 Hz utility line frequencies. The coil presents a native internal resistance of 5,200 Ohms and maintains an average low power consumption of 2.50 VA. The functional input activation window safely operates between 102V and 132V AC, ensuring crisp, reliable magnetic armature sealing (with a response speed of 30 ms) even during localized voltage drops or grid fluctuations.
• Designed with a highly flexible mechanical housing, this unit supports both direct back-panel surface mounting and standard clip-on installation onto 35 mm symmetrical DIN rails. The physical package features a space-saving footprint measuring 1.4 inches (34.9 mm) in width, 2.7 inches (67.7 mm) in height, and 2.1 inches (53.9 mm) in depth, weighing 120 grams. The structural frame boasts an ultra-high dielectric strength rating of 4,000V AC between the coil and contact paths, providing superior isolation against voltage spikes and surges.
• Field wiring is completed via heavy-duty, touch-proof screw terminals equipped with integrated protective covers that establish a finger-safe IP20 ingress protection index. The cross-head terminal screws require an engineering tightening torque specification of 10.6 to 15 lb-in (1.2 to 1.7 N-m) over an 8 mm wire strip length to guarantee a low-resistance, vibration-proof termination. Fully certified under UL, CSA, and CE industrial safety benchmarks, this relay satisfies all Canadian commercial inspection codes for quick facility sign-off.
• Equipped with an integrated status LED for immediate local visual signaling of coil power, alongside a lockable, spring-return mechanical test button. This allows technicians to manually override and test the dual contacts instantly during commissioning or scheduled maintenance downtimes, drastically reducing diagnostic and debugging labor.

Documentation & Downloads

Specifications