Overview
The GE CR115E geared rotary limit switch is a worm and gear-reduction control device engineered for rotating-drive shaft applications. Available in multiple contact configurations and gear ratios, the CR115E delivers precise limit control for doors, cable systems on cranes and hoists, thread-tapping equipment, and other machine tool operations requiring shaft control. The switch is designed with rugged construction suitable for industrial environments.
Key Features
- Worm and gear-reduction design for accurate rotation-to-contact actuation
- Snap-acting contacts for reliable switching performance
- Multiple gear ratios available (ranging from 20.5:1 to 640:1)
- Configurable contact blocks (2NO-2NC and up to 4NO-4NC options)
- Standard plain-end shaft and Woodruff key-type shaft variants
- Left-hand and right-hand shaft orientation options
Technical Specifications
- Device Type: Geared rotary limit switch, snap-acting
- Contact Configurations: 2NO-2NC, 3NO-3NC, 4NO-4NC available
- Gear Ratios: 20.5:1, 42.5:1, 80:1, 111:1, 222:1, 333:1, 444:1, 640:1
- Enclosure Ratings: NEMA Type 1, Type 4, Type 7/9
- Electrical Rating: Pilot duty, 600 VAC maximum
- Shaft Options: Standard plain-end, Woodruff key-type
- Dwell Type: Standard dwell cams
- Shipping Weight: Approximately 5 lbs
Typical Applications
The CR115E geared rotary limit switch is ideal for material handling equipment including hoists, cranes, overhead doors, conveyors, and valves. It provides overtravel protection and precise position sensing on machine tool lead screws, packaging machinery, stage curtains, powered doors and windows, and compacting equipment. Any application requiring rotating-drive shaft control with electrical stop or start functions benefits from the CR115E’s gear reduction and snap-acting contact design.
Compatibility & Replacements
Compatible With
- Industrial motor-driven rotating equipment and shaft systems
- AC motor control circuits operating at 600 VAC or below
- Pilot duty electrical control schemes
- Material handling systems requiring position sensing
Replaces / Drop-In Replacement For
The GE CR115E base model serves as the foundation for numerous full part numbers with different configurations. Direct replacements exist across NEMA Type 1, Type 4, and Type 7/9 enclosures with specific model numbers such as CR115E121102, CR115E124102, CR115E125102, and CR115E164102. Gleason Reel Corp Series 55 rotary limit switches provide a direct mechanical replacement option. For your exact replacement needs, verify your current full model number (including contact configuration, gear ratio, shaft type, and enclosure rating) before ordering.
Works With
- Standard AC motor control circuits and contactors
- Pilot duty electrical control systems
- NEMA Type 1, 4, 7, and 9 enclosure systems
