Separate‑winding two‑speed starters are designed for motors that contain two independent windings one for low speed and one for high speed. These starters use dedicated contactors and overload protection for each winding, providing a simple and reliable method of switching between speeds. Control Innovations supplies separate‑winding two‑speed starters built to meet industrial requirements and integrate easily with automation and monitoring systems.
A separate‑winding two‑speed starter provides control for motors that use two distinct windings to achieve low‑ and high‑speed operation. The starter energizes only one winding at a time and uses interlocked contactors to ensure safe, isolated operation.
Key Features
Control Innovations separate‑winding two‑speed starters typically include:
- Two dedicated contactors—one for low speed and one for high speed
- Individual overload relays for each winding
- Overload ranges selected based on low‑ and high‑speed full‑load currents
- Electrical and mechanical interlocking to prevent simultaneous energization
- Start/stop and speed‑selection operator controls
This provides a straightforward, dependable solution for operating two‑speed motors.
Motor & Starter Characteristics
Separate‑winding two‑speed motors:
- Contain two independent windings
- Are larger and more expensive than single‑winding (Dahlander) motors
- Require simpler, less costly starters compared to variable‑pole designs
The starter design remains uncomplicated because each winding is controlled independently.
Automation & Integration Options
Two‑speed starters can be enhanced with:
- PLC integration for remote operation
- SCADA connectivity using Modbus‑enabled contactors
- Remote start/stop capability
- Additional monitoring and protection devices
These options support advanced control and remote accessibility.
Certification & Compliance
All two‑speed starter panels manufactured by Control Innovations are:
- CSA/ETL approved for use across Canada
- Eligible for additional certifications or approvals for global installations
- Subject to local electrical code or National Electrical Code requirements for installation
This ensures smooth deployment and regulatory compliance.