CA3175X - 175Amp Circuit Breaker

CA3175X - 175 Amp Circuit Breaker

The CA3175X is a 175 amp, 3 pole molded case circuit breaker built for 240VAC three-phase systems. It’s part of the CA frame family and is typically found in commercial and light industrial distribution equipment where consistent overcurrent protection is required. With a 10kA interrupting rating at 240 volts, it’s designed to safely clear fault conditions and help protect wiring, panels, and connected equipment from damage.

This breaker uses a non-interchangeable trip unit that’s calibrated for 40°C ambient conditions, which reflects standard electrical room environments. The trip mechanism is factory-set, so what you install is exactly what the system is designed to operate with. Load-side lugs are included, allowing for secure conductor terminations without the need for additional components. For facilities maintaining existing CA frame equipment, the CA3175X serves as a direct form, fit, and functional replacement.

These breakers were built to last and are commonly kept in service for many years in properly maintained systems.

Key Features and Benefits

• 175 amp continuous current rating
• 3 pole configuration for three-phase systems
• 10kA interrupting capacity at 240VAC
• CA frame design for compatibility with existing equipment
• Non-interchangeable trip unit (factory calibrated)
• Rated for 40°C ambient conditions
• Load-side lugs included

Technical Specifications

• Part Number: CA3175X
• Amperage: 175A
• Poles: 3
• Voltage Rating: 240VAC
• Interrupting Capacity: 10kA @ 240VAC
• Frame Type: CA
• Trip Unit: Non-interchangeable
• Ambient Calibration: 40°C
• Shipping Weight: 4.13 lbs
• Shipping Height: 6.5 inches

Material Compliance and Certifications

• The CA3175X is manufactured to meet applicable industry standards for molded case circuit breakers used in low-voltage power distribution systems. When installed according to the National Electrical Code (NEC) and local electrical regulations, it provides proper overcurrent protection for its rated application.

Where It Works Best

• This breaker is typically used in commercial buildings, manufacturing facilities, and institutional properties operating on 240VAC three-phase power. It fits panelboards and switchboards designed for CA frame breakers and is commonly installed during maintenance, repair, or replacement of existing units where matching specifications is essential.