Output Ratings - Sevcon Gen4 Applications Reference Manual

Output ratings

Input Function
(Vdc)
24 Single traction size 2
24/36 Single traction size 4
Single traction size 6
Single traction size 2
36/48 Single traction size 4
Single traction size 6
Single traction size 2
72/80 Single traction size 4
Single traction size 6
Single traction size 4
96/110
*2 minute rating (lower ratings are possible for longer periods; see example in Figure 10)
** 1 hour minimum without forced-air cooling
Size 2 long-term rating achievable with finned heatsink approx 250mm x 180mm, 0.5°C/W
Size 4 long-term rating achievable with finned heatsink approx 330mm x 200mm, 0.3°C/W
Size 6 long-term rating achievable with finned heatsink approx 330mm x 280mm, 0.2°C/W
Figure 10 Output current available for various durations of sustained current
demand
4-4
Short term Continuous
rating* (A rms) rating** (A rms)
300 120
450 180
650 260
275 110
450 180
650 260
180 75
350 140
550 210
300 120