CC156.0 - Square D Thermal Unit

CC156.0 - Square D Thermal Unit

When you're protecting valuable motors from costly damage and unexpected downtime, the CC156.0 Thermal Overload Unit delivers dependable overload protection designed for demanding motor control applications. This Type S Class 20 melting alloy thermal unit is engineered to help safeguard motors, controllers, and branch circuit conductors from excessive heat caused by prolonged overcurrent conditions, giving maintenance professionals and facility operators greater confidence in the performance of their equipment.

The CC156.0 works by continuously monitoring motor current through an internal heater winding. If an overload condition develops and persists, heat builds within the thermal unit until its precision-engineered melting alloy mechanism activates, opening the control circuit and disconnecting the motor before overheating can cause damage. Its Class 20 trip characteristic allows the unit to respond to overload conditions within 20 seconds or less, making it an excellent choice for applications where reliable motor protection is essential.

Built with a compact one-piece design, the CC156.0 combines proven thermal overload technology with long-term durability for industrial and commercial environments. Whether you're supporting pumps, compressors, conveyors, HVAC systems, or other motor-driven equipment, this thermal overload unit helps extend motor life, reduce maintenance costs, and improve overall system reliability.

Key Features and Benefits

• Provides reliable thermal overload protection for motors and motor control equipment
• Class 20 trip rating responds to overload conditions within 20 seconds or less
• Melting alloy technology offers consistent and dependable operation
• Helps reduce motor overheating and premature equipment failure
• One-piece construction designed for long service life
• Suitable for a wide range of industrial and commercial motor applications
• Supports improved equipment uptime and reduced maintenance costs
• Designed for use in compatible motor starter and control assemblies

Technical Specifications

• Catalog Number: CC156.0
  
• Product Type: Thermal Overload Unit
  
• Series: CC
  
• Thermal Overload Type: Melting Alloy
  
• Motor Tripping Class: Class 20
  
• Construction: One-Piece Design
  
• GTIN: 785901588207
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

• Manufactured to meet applicable quality standards for compatible motor control applications
• Class 20 thermal overload protection design
• Melting alloy overload sensing technology
• Covered by an 18-month manufacturer warranty

Where It Works Best

The CC156.0 is commonly used in motor starter assemblies and motor control systems found throughout manufacturing facilities, processing plants, commercial buildings, and industrial operations. It is particularly well suited for protecting motors used in pumps, fans, blowers, compressors, conveyors, HVAC equipment, and other applications where sustained overload conditions can lead to excessive heat buildup and equipment damage.