What Class of fuse does the CD221N, CD321N and CD321NRB general duty safety switches accept?
Issue:
Product design features
Product Line:
General Duty Safety Switches
Environment:
Fuses
Cause:
Installation
Resolution:
These switches accept Class H or K fuses as standard. For design Series E1, E2 or E3, options include Class R fuses (field install Class R Fuse Kit DRK30). With Class H or K fuses installed, the switch is rated for use on systems with up to 10,000 RMS Symmetrical Amperes available fault current. With Class R fuses (and DRK30 fuse kit installed) the switch is rated for use on systems with up to 100,000 RMS Symmetrical Amperes available fault current.
NOTE: DO NOT USE RENEWABLE LINK FUSES IN SQUARE D SAFETY SWITCHES. The use of renewable link fuses may adversely affect user safety, impair reliability and will void the warranty.
Product design features
Product Line:
General Duty Safety Switches
Environment:
Fuses
Cause:
Installation
Resolution:
These switches accept Class H or K fuses as standard. For design Series E1, E2 or E3, options include Class R fuses (field install Class R Fuse Kit DRK30). With Class H or K fuses installed, the switch is rated for use on systems with up to 10,000 RMS Symmetrical Amperes available fault current. With Class R fuses (and DRK30 fuse kit installed) the switch is rated for use on systems with up to 100,000 RMS Symmetrical Amperes available fault current.
NOTE: DO NOT USE RENEWABLE LINK FUSES IN SQUARE D SAFETY SWITCHES. The use of renewable link fuses may adversely affect user safety, impair reliability and will void the warranty.
Released for: Schneider Electric Canada
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