N3 Drive Operations Manual 
 
Input Fuse Types & Ratings Cont., Circuit Breakers & Magnetic Contactors   19           
Table 12.1C (3 Ø) Input Fuse Types and Ratings 
 
100% CONT 
Output AMPS 
(A) 
Max. CC or T 
FUSE  
Rating(A) 
 
 NOTE: Fuse ratings are based on 250V fuses for 230V inverters and 600v for 460V inverters. 
 
13.0 Applicable Specifications for Circuit Breakers and Magnetic Contactors  
The following tables show the specifications for molded case circuit breakers and magnetic contactors vs N3 models. 
  
 Table 13.1A (230V) 
 
 Table 13.1B (460V) 
 
TECO bears no responsibility for failures caused by the following conditions: 
(1) A molded-case circuit breaker is not installed, or an improper or overrated  
 breaker is used between the power source and the inverter. 
(2)  A magnetic contactor, a phase capacitor, or a surge suppressor between the  
 inverter and the motor. 
Molded-case 
circuit breaker 
made by TECO 
Magnetic 
contactor (MC) 
made by TECO 
Molded-case circuit 
breaker made by 
TECO 
Magnetic contactor 
(MC) made by TECO