Overview
The Square D CC167.0 is a thermal overload heater element designed for integration into motor protection and control systems. This melting alloy thermal overload unit is rated for 86 Amp with a Motor tripping class of 20, making it suitable for medium to high amperage motor circuits requiring reliable overload protection. The unit is manufactured by Square D (a Schneider Electric brand) and is widely used in industrial automation and motor starter applications across manufacturing, HVAC, and process control environments.
Key Features
- Melting alloy sensing mechanism for consistent thermal response
- 86 Amp rating suitable for mid-to-high amperage motor circuits
- Class 20 motor tripping classification for fast trip response
- Direct plug-in design for standard Square D Class 8536 overload relay assemblies
- New in Box condition with same-day shipping availability
Technical Specifications
| Specification | Value |
| Manufacturer | Square D (Schneider Electric) |
| Part Number | CC167.0 |
| Ampere Rating | 86 Amp |
| Thermal Type | Melting Alloy |
| Motor Trip Class | Class 20 |
| Product Series | CC (Class 8536) |
| Mounting Style | Plug-In |
| Condition | New in Box |
| Quantity | Lot of 3 Units |
Typical Applications
- Three-phase motor overload protection in Class 8536 magnetic starters
- HVAC motor control and compressor protection
- Industrial process equipment with medium to high amperage motors
- Pump and fan motor circuits requiring reliable thermal sensing
- Machine tool and manufacturing equipment motor protection
Compatibility & Replacements
Compatible With
- Square D Class 8536 magnetic starter assemblies
- Square D Class 8536 Type SCG3 Size 1 starters
- Overload relay assemblies using CC-series heater elements
- Three-phase motor control circuits rated 86 Amperes
Replaces / Drop-In Replacement For
- OEM Square D CC167.0 units in motor control systems
- Other melting alloy thermal heater units in the 80–90 Amp range (verify heater selection tables)
- Verify exact ampere rating against motor full-load current and control system specifications before installation
Works With
- Square D Class 8536 overload relays and contactors
- Standard industrial motor starters and soft-start controllers
- Three-phase motor protection schemes in industrial automation
- Bimetallic and electronic overload relay assemblies requiring thermal sensing


















