Comoso Controlled Motion Solutions

Key Features

Bimetallic ambient compensated overload relays—available in three basic sizes covering applications up to 900 hp— reducing number of different contactor/overload relay combinations that have to be stocked 

These overload relays feature:

• Selectable manual or automatic reset operation
  
• Interchangeable heater packs adjustable ±24% to match motor FLA and calibrated for 1.0 and 1.15 service factors. Heater packs for smaller overload relay will mount in larger overload relay— useful in derating applications such as jogging 
  
• Load lugs built into relay base
  
• Single-phase protection, Class 20 or Class 10 trip time
  
• Overload trip indication
  
• Electrically isolated NO-NC contacts (pull RESET button to test)
  
• The C440 is a selfpowered, robust electronic overload designed for integrated use with Freedom NEMA contactors
  
• Tiered feature set to provide coverage specific to your application
  
• Broad 5: 1 FLA range for maximum flexibility
  
• Coverage from 0.05–1500A to meet all your needs
  
• Long life twin break, silver cadmium oxide contacts—provide excellent conductivity and superior resistance to welding and arc erosion. Generously sized for low resistance and cool operation
  
• Designed to 3,000,000 electrical operations at maximum hp ratings up through 25 hp at 600V
  
• Steel mounting plate standard on all open type starters
  
• Wired for separate or common control
  

Non-Reversing

• Holding circuit contact(s) supplied as standard:
  
• Sizes 00–3 have a NO auxiliary contact block mounted on right-hand side (on Size 00, contact occupies 4th power pole position—no increase in width)
  
• Sizes 4–5 have a NO contact block mounted on left side
  
• Sizes 6–7 have a 2NO/2NC contact block on top left
  
• Size 8 has a NO/NC contact block on top left back and a NO on top right back 
  

Reversing

• Each contactor (Size 00–8) supplied with one NO-NC side mounted contact block as standard. NC contacts are wired as electrical interlocks