The Ralli Wolf SPM 63 is a special purpose motor built for circuit breaker applications, running on a 220V DC-only supply — unlike most of the SPM circuit breaker range, which offers dual AC/DC compatibility. This makes it a more specialized fit for DC-only switchgear and control systems rather than a general-purpose option.

Under no-load conditions, it draws a low 0.42A and 92W while spinning at 15,000 RPM. Under full load, current rises modestly to 0.7A and input power to 154W, with speed settling to 10,000 RPM. Its power draw is notably efficient compared to similarly fast SPM models like the SPM 18 and SPM 25, drawing significantly less current and wattage for a comparable speed range.

Its full-load rating of 5 minutes places it in the same duty-cycle bracket as the SPM 43, suited to a moderate-duration operating function within the circuit breaker mechanism — long enough for a complete spring-charge or operating cycle, but not built for continuous running.

Key Features

• Runs on 220V DC-only supply
• High no-load speed of 15,000 RPM
• Efficient power draw: 92W no-load, 154W full load
• Purpose-built for circuit breaker applications
• Rated for 5-minute full-load duty cycles
• Lower current draw than comparable high-speed SPM models

Technical Specification

Application

• Circuit breaker operating mechanisms in DC-powered systems
• DC switchgear and control panel equipment
• Substation and battery-backed circuit breaker systems
• Power distribution equipment requiring efficient, moderate-duty DC motors