In industrial automation, reliability and efficiency are paramount. The Sprecher + Schuh CA7-43-00 Contactor stands out as a trusted solution for professionals managing medium-sized motor loads up to 22 kW. Designed for precision motor control, this compact 3-pole contactor combines international compliance, durable engineering, and modular flexibility—making it ideal for demanding industrial environments.
What Is the Sprecher + Schuh CA7-43-00 Contactor?
The Sprecher + Schuh CA7-43-00 Contactor is a three-phase IEC contactor engineered to switch motors and resistive loads up to 22 kW (30 HP). Rated for 43 A AC-3 duty at 415 V and 85 A for resistive loads, this model is part of Sprecher + Schuh’s robust CA7 series. It operates with a 240 VAC 50 Hz coil, compatible with 277 VAC 60 Hz systems, and features an IP20 touch-safe design, ensuring safe, reliable performance inside control panels.
Compact yet powerful, this contactor’s modular design allows for easy integration with overload relays and auxiliary blocks, delivering adaptability across industrial applications.
Technical Specifications of the Sprecher + Schuh CA7-43-00 Contactor
When it comes to technical precision, the Sprecher + Schuh CA7-43-00 Contactor is engineered to IEC standards for long-term reliability and superior motor control performance.
Key Technical Details:
● Series / Type: CA7 IEC Contactor (non-reversing)
● Main Contacts: 3 NO (normally open) poles
● Operational Current: 43 A (AC-3, 415 V, 60°C)
● Resistive Load: 85 A (AC-1, 415 V, 40°C)
● Motor Power Rating: Up to 22 kW (30 HP @ 460 V)
● Coil Voltage: 240 VAC (50 Hz), 277 VAC (60 Hz)
● Power Consumption: Inrush 135 VA, Holding 13.3 VA
● Mechanical Life: Up to 12 million operations (no load)
● Electrical Life: ~1 million operations at full load (AC-3)
● Protection: IP20 (finger-safe)
● Mounting: DIN rail or panel mount
● Compliance: IEC 60947-4-1 / UL / CSA / CE / RoHS
These specifications make the Sprecher + Schuh CA7-43-00 Contactor one of the most versatile options for applications requiring reliability under high operational demand.
Datasheet Insights and Advanced Design Features
The CA7-43-00 Contactor is built for durability and performance with key features that enhance its longevity and safety.
Compact and Modular Design
Despite its 54 mm width, the Sprecher + Schuh CA7-43-00 handles high inrush currents with minimal wear. The contactor accommodates multiple accessories—such as auxiliary contacts, surge suppressors, and timers—allowing engineers to configure custom control systems without space constraints.
Arc chute design
Electrical arcs are a natural byproduct of contactor operation. The CA7-43-00 Contactor uses a specialized arc chute design that divides and cools the arc, significantly reducing contact wear and extending operational life. This makes it ideal for high-duty-cycle applications like conveyor systems or repetitive-start motors.
Safety and Mechanical Interlocking
Safety is integral to the Sprecher + Schuh CA7-43-00 design. Mechanically linked contacts prevent false signaling in safety circuits, ensuring accurate feedback. The model supports mechanical interlocks for reversing or star-delta starters, ensuring two contactors cannot engage simultaneously.
Reversible Coil Terminals
A hallmark of Sprecher + Schuh engineering, the reversible coil design allows terminals to be positioned at either the top or bottom. This flexibility simplifies wiring, particularly when used with overload relays or in space-constrained control panels.
Certifications and Global Compliance
The Sprecher + Schuh CA7-43-00 Contactor meets a wide range of international standards, providing assurance of safety and reliability across markets.
Compliance and Ratings:
● IEC 60947-4-1 / IEC 60947-5-1: Ensures compliance with international low-voltage and auxiliary contactor standards.
● UL Listed / CSA Certified: Approved for industrial use in North America.
● CE Marked / RoHS Compliant: Meets European directives for low voltage and environmental safety.
● Insulation & Withstand Ratings: Ui = 690 V AC; Uimp = 6 kV.
These certifications confirm the Sprecher + Schuh CA7-43-00 Contactor can be confidently deployed in systems requiring global acceptance and dependable performance.
Alternative Models and Accessories
Sprecher + Schuh offers flexibility through multiple coil voltages, auxiliary options, and frame sizes within the CA7 series.
Variants by Coil Voltage:
● CA7-43-00-120: 110–120 VAC coil
● CA7-43-00-24Z: 24 VAC coil
● CA7-43E-xx: Electronic DC coil version with built-in economizer
Auxiliary Options:
● CA7-43-10: Includes 1 NO auxiliary contact
● CA7-43-01: Includes 1 NC auxiliary contact
Adjacent Models:
● CA7-30: 30 A, 15 kW
● CA7-37: 37 A, 18.5 kW
● CA7-55: 55 A, 30 kW
For overload protection, the CA7-43-00 Contactor integrates seamlessly with the CEP7 or CT7 overload relay series, creating a complete and compact motor starter solution.
Typical Applications of the Sprecher + Schuh CA7-43-00 Contactor
Motor Control
Engineered for 3-phase motor applications up to 22 kW, this contactor is ideal for pumps, conveyors, fans, compressors, and mixers. Its high endurance ensures consistent performance under frequent cycling conditions.
Industrial Automation
Used in control panels for machinery and manufacturing lines, the Sprecher + Schuh CA7-43-00 ensures smooth motor control in presses, CNC machines, and automated packaging systems.
HVAC Systems
In building management and air-conditioning systems, it controls compressors and blower motors efficiently, offering global code compliance for commercial setups.
Capacitor and Resistive Loads
With an 85 A AC-1 rating, it handles heating, lighting, and capacitor bank switching, suitable for moderate power factor correction duties.
Reversing and Star-Delta Starters
Paired with mechanical interlocks and timers, the CA7-43-00 Contactor enables safe motor direction reversal and reduced torque starting for larger motors.
Related Product Collections ➔
Motor Control Equipment ➔
Explore our complete range of motor control equipment including contactors, overload relays, and starters. Ideal for building robust and safe control panels.
Automation & Controls ➔
Discover cutting-edge automation and control products that complement the CA7 series, such as PLCs, relays, sensors, and timers designed for industrial efficiency.
Discontinued Collection ➔
Find discontinued and legacy Sprecher + Schuh products and other industrial electrical components, offering excellent value for replacement or spare parts.
Conclusion: Reliable Motor Control Starts with Sprecher + Schuh
When it comes to industrial reliability, the Sprecher + Schuh CA7-43-00 Contactor sets the standard for performance, safety, and adaptability. From motor control centers to automation panels, it empowers engineers to build systems that last—efficiently and confidently.
To explore technical specifications, coil options, and compatible accessories, visit the Sprecher + Schuh CA7-43-00 Contactor product page and discover how this contactor can enhance your next control system design.
