C3 Controls
Overload Relays
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Product Details
Available in five frame sizes with a current adjustment range of 0.28-112A.
High fault short circuit current rating of 100kA@480V and 600V with Class J fuses.
Full load current adjustment ratio of approx. 1:1.5 enables relay to be set to exact FLA of motor.
Single phase sensitivity to protect motors against damaging phase loss conditions.
Manual or automatic reset and test modes, and stop button all in a single device.
Visible trip indication and test function standard on all c3controls Series 320 Overload Relays.
Thermal Trip Class 10 overload protection, trips within 10 seconds when carrying a current of 720%.
Ambient temperature compensation ensures reliable motor protection even in high temperature environments.
Direct mounting to all c3 contactors, miniature and standard.
Top 5 Best Sellers
Adj. Range: 1.8-2.8 (use with: 9-40A Contactors) p/n: 320-B2D28
Adj. Range: 2.8-4.0 (use with: 9-40A Contactors) p/n: 320-B2D40
Adj. Range: 11-17 (use with: 9-40A Contactors) p/n: 320-B2U17
Adj. Range: 15-23 (use with: 9-40A Contactors) p/n: 320-B2U23
Adj. Range: 5.6-8.0 (use with: 9-40A Contactors) p/n: 320-B2D80
- Device Rating: IEC
Downloads
Installation instructions
CAD drawings
- 320-B1 (DXF) DXF Opens in a new window.
- 320-B1 (STEP) STEP Opens in a new window.
- 320-B2 (DXF) DXF Opens in a new window.
- 320-B2 (STEP) STEP Opens in a new window.
- 320-B3 (DXF) DXF Opens in a new window.
- 320-B3 (STEP) STEP Opens in a new window.
- 320-B4 (DXF) DXF Opens in a new window.
- 320-B4 (STEP) STEP Opens in a new window.
- 320-B5 (DXF) DXF Opens in a new window.
- 320-B5 (STEP) STEP Opens in a new window.
Certifications
- RoHS Compliance: Overload Relays PDF Opens in a new window.
- UL Certificate of Compliance: E68568-20151130 PDF Opens in a new window.
- CE Declaration: Overload Relays PDF Opens in a new window.
- UL Certificate of Compliance: E68568-20160630 PDF Opens in a new window.
- UL Certificate of Compliance: E68568-20130601 PDF Opens in a new window.
- UL Certificate of Compliance: E68568-20130731 PDF Opens in a new window.
Catalogs and guides
More resources
- Industry Technical Reference PDF Opens in a new window.
- Conflict Minerals Policy PDF Opens in a new window.
- Product Showcase: Motor Control PDF Opens in a new window.
- Product Showcase: Overload Relays PDF Opens in a new window.
- Circuit Diagrams: Overload Relays PDF Opens in a new window.
- Specifications: Overload Relays PDF Opens in a new window.
- Trip Characteristics: Overload Relays PDF Opens in a new window.
- Mounting Positions: Overload Relays PDF Opens in a new window.
Product information
Technical details
Available in five frame sizes with a current adjustment range of 0.28-112A.
High fault short circuit current rating of 100kA@480V and 600V with Class J fuses.
Full load current adjustment ratio of approx. 1:1.5 enables relay to be set to exact FLA of motor.
Single phase sensitivity to protect motors against damaging phase loss conditions.
Manual or automatic reset and test modes, and stop button all in a single device.
Visible trip indication and test function standard on all c3controls Series 320 Overload Relays.
Thermal Trip Class 10 overload protection, trips within 10 seconds when carrying a current of 720%.
Ambient temperature compensation ensures reliable motor protection even in high temperature environments.
Direct mounting to all c3 contactors, miniature and standard.
Top 5 Best Sellers
Adj. Range: 1.8-2.8 (use with: 9-40A Contactors) p/n: 320-B2D28
Adj. Range: 2.8-4.0 (use with: 9-40A Contactors) p/n: 320-B2D40
Adj. Range: 11-17 (use with: 9-40A Contactors) p/n: 320-B2U17
Adj. Range: 15-23 (use with: 9-40A Contactors) p/n: 320-B2U23
Adj. Range: 5.6-8.0 (use with: 9-40A Contactors) p/n: 320-B2D80
- Device Rating: IEC
Downloads
Downloads
Installation instructions
CAD drawings
- 320-B1 (DXF) DXF Opens in a new window.
- 320-B1 (STEP) STEP Opens in a new window.
- 320-B2 (DXF) DXF Opens in a new window.
- 320-B2 (STEP) STEP Opens in a new window.
- 320-B3 (DXF) DXF Opens in a new window.
- 320-B3 (STEP) STEP Opens in a new window.
- 320-B4 (DXF) DXF Opens in a new window.
- 320-B4 (STEP) STEP Opens in a new window.
- 320-B5 (DXF) DXF Opens in a new window.
- 320-B5 (STEP) STEP Opens in a new window.
Certifications
- RoHS Compliance: Overload Relays PDF Opens in a new window.
- UL Certificate of Compliance: E68568-20151130 PDF Opens in a new window.
- CE Declaration: Overload Relays PDF Opens in a new window.
- UL Certificate of Compliance: E68568-20160630 PDF Opens in a new window.
- UL Certificate of Compliance: E68568-20130601 PDF Opens in a new window.
- UL Certificate of Compliance: E68568-20130731 PDF Opens in a new window.
Catalogs and guides
More resources
- Industry Technical Reference PDF Opens in a new window.
- Conflict Minerals Policy PDF Opens in a new window.
- Product Showcase: Motor Control PDF Opens in a new window.
- Product Showcase: Overload Relays PDF Opens in a new window.
- Circuit Diagrams: Overload Relays PDF Opens in a new window.
- Specifications: Overload Relays PDF Opens in a new window.
- Trip Characteristics: Overload Relays PDF Opens in a new window.
- Mounting Positions: Overload Relays PDF Opens in a new window.