CC167 - Square D Thermal Unit

CC167 - Square D Thermal Unit

The CC167 Thermal Overload Unit is a Type S Class 20 melting alloy thermal unit used in motor starters and motor control systems to help protect your motors from prolonged overload conditions. When a motor draws more current than it is designed to handle for an extended period, excess heat can build up and potentially damage motor windings, controllers, or related components. The CC167 is designed to respond to these conditions before overheating becomes a larger problem.

Motor current passes through an internal heater winding within the thermal unit. As current increases during an overload condition, heat builds inside the device. If the overload continues long enough to reach the unit's trip point, the melting alloy mechanism activates and opens the control circuit, shutting down the motor. The Class 20 trip rating means the unit is designed to trip within 20 seconds or less under overload conditions, including locked-rotor situations.

Its one-piece construction and straightforward design make the CC167 a common choice for motor protection applications in commercial and industrial facilities. It is frequently used with pumps, fans, compressors, conveyors, HVAC equipment, and other motor-driven systems where thermal overload protection is required as part of the motor starter assembly.

Key Features and Benefits

• Type S thermal overload unit
• Class 20 overload protection
• Melting alloy thermal sensing technology
• Helps protect motors, controllers, and branch circuit conductors from overheating
• Designed to respond to prolonged overload and locked-rotor conditions
• Trips within 20 seconds or less under specified overload conditions
• One-piece construction
• Internal heater winding monitors motor current
• Suitable for use in compatible motor starter assemblies
• Helps reduce the risk of motor damage caused by sustained overload conditions

Technical Specifications

• Catalog Number: CC167
  
• Product Range: CC
  
• Thermal Overload Type: Melting Alloy
  
• Motor Tripping Class: Class 20
  
• Type: Type S Thermal Unit
  
• Construction: One-Piece Design
  
• GTIN: 785901588214
  
• Country of Origin: Mexico
  
• Dimensions:
  • Height: 0.70 in.
  • Width: 2.30 in.
  • Length: 3.20 in.
• Weight: 1.92 oz (54.43 g)
  

Material Compliance and Certifications

• Class 20 thermal overload protection design
• Melting alloy thermal trip mechanism
• Manufactured for use in compatible motor control and starter applications
• Covered by an 18-month manufacturer warranty

Where It Works Best

The CC167 is commonly used in motor starters found in industrial equipment, commercial facilities, HVAC systems, pumping systems, compressors, conveyors, ventilation equipment, and other motor-driven applications. It is a good fit for installations where motors may be exposed to sustained overload conditions and where dependable thermal overload protection is needed to help prevent overheating.