The Ralli Wolf SPM 8 is a special purpose motor built for circuit breaker applications, running on a 220V AC or DC supply. It offers a low-power, low-speed profile compared to the higher-RPM motors elsewhere in the SPM range, drawing just 1.2W at no load and 2.2W at full load — figures well below the SPM circuit breaker range's typical power draw.

Speed rises from 254 RPM at no load to 450 RPM at full load, an unusual pattern compared to most electric motors (which typically slow under load), suggesting the SPM 8 is designed for a specific mechanical function where load actually helps drive it toward its rated operating speed — consistent with a feed-assist or drive-roll type mechanism rather than a simple rotary output.

Its specification sheet includes drive roll diameter and wire feeder speed fields alongside the standard motor ratings, pointing to an application involving material feed or wire handling within the broader circuit breaker mechanism, in addition to standard rotary output duty.

Key Features

• Runs on 220V AC or DC supply
• Compact, low-power design: 1.2W no-load, 2.2W full-load
• Speed increases from 254 to 450 RPM between no-load and full-load
• Purpose-built for circuit breaker applications
• Includes drive roll and wire feeder speed specifications
• Suited to feed-assist or drive mechanism functions

Technical Specification

Application

• Circuit breaker operating mechanisms
• Feed-assist or drive roll functions within switchgear equipment
• Electrical panel and switchgear manufacturing
• Power distribution equipment requiring compact drive motors