PAGE 50 — GENERATOR SERVICE AND TROUBLESHOOTING MANUAL — REV. #0 (08/29/23)
MAIN CIRCUIT BREAKER
Table 2. Generator Amperage Chart/CB-OC Trip Ratings
MODEL
PRIME OUTPUT
AMPS
240 VAC 3Ø
AMPS
480 VAC 3Ø
AMPS
120 VAC 1Ø
AMPS
240 VAC 1Ø
CIRCUIT
BREAKER
TRIP RATING
(AMPS)
OVERCURRENT
RELAY TRIP
SET POINT
(AMPS)
kVA kW
DCA6 6 6 N/A N/A 25.0 × 2 25 25 N/A
DCA10 10 10 N/A N/A 30 41.6 45 N/A
DCA15 14 14 N/A N/A 58.3 × 2 58.3 70 N/A
DCA25
1
25 20 60 30 60.0 × 2 60 60 30
DCA36 36 36 N/A N/A 150 × 2 150 150 N/A
DCA40
1
36 28.8 86 43 108 × 2 108 110 43
DCA45
1
45 36 108 54 108 × 2 108 125 54
DCA70
1
70 56 168 84 168 × 2 168 200 84
DCA125
1
125 100 300 150 300 × 2 300 300 152
DCA150
1
150 120 361 180 361 × 2 361 400 180
DCA180
2
180 144 433 216 400 200 500 216
DCA220
2
220 176 529 264 488.9 244.4 600 256
DCA300
2
300 240 722 360 666.7 333.3 800 361
DCA400
2
400 320 962.3 481.1 888.9 444.4 1,000 480
DCA600
2
600 480 1,443.4 721.7 1,333.3 666.7 1,600
1,443.4 (240 V)
720 (480 V)
DCA800
2
800 640 1,924.6 962.3 1,778.8 888.9 2,500 960
1
Zigzag wire conguration,
2
Four wire conguration.
SINGLE-PHASE LOAD
Generally, the wattage listed on the nameplate of the
equipment is its rated output. Equipment may require
130–150% more wattage than the rating on the nameplate,
as the wattage is inuenced by the efciency, power factor
and starting system of the equipment.
WATTS = VOLTAGE × AMPERAGE
NOTICE
If wattage is not given on the equipment’s nameplate,
approximate wattage may be determined by multiplying
nameplate voltage by the nameplate amperage.
THREE-PHASE LOAD
When calculating the power requirements for 3-phase
power, use the following equation:
KVA =
VOLTAGE × AMPERAGE × 1.732
1000
NOTICE
If 3Ø load (kVA) is not given on the equipment
nameplate, approximate 3Ø load may be determined
by multiplying voltage by amperage by 1.732.