Troubleshooting
Problem
Automatic transfer switch does not
transfer to generator
Automatic transfer switch does not
transfer to utility
Generator is still running after switch
transfers to utility power
Generator or supervised loads (air
conditioner, etc.) are operating
improperly when generator is
supplying power
Generator is still running after utility
power is restored
200 Amp Automatic Transfer Switch
1.
Generator breaker open.
2.
Generator voltage not acceptable.
1.
Service disconnect breaker open.
2.
Utility voltage not acceptable.
Engine cool down period.
1.
A-A or B-B contacts not
operating correctly.
2.
Too much load on generator.
3.
Current transformer not connected.
4.
Broken current transformer.
1.
Minimum engine run time has
not elapsed.
2.
Fuse(s) in transfer switch
is defective.
Product Specifications
Rated Maximum Load Current* (at 25°C/77°F) . . . . . . . . 200 Amps
Rated AC Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250 Volts
Poles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Hz
Fault Current Rating . . . . . . . . . 25,000 RMS Symmetrical Amperes
Supervisory Contacts Rating:
A-A Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Volt AC
B-B Terminals . . . . . . . . . . . . . . . . 1 Amp, 125 Volt AC, Pilot Duty
Normal Operating Range . . . . . . . . -20°F (-28.8°C) to 104°F (40°C)
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63 lbs. (29 kg)
*This transfer switch is certified in accordance with UL (Underwriters Laboratories)
1008 (transfer switch equipment).
Cause
1. Reset generator circuit breaker.
2.
1. Reset service disconnect breaker.
2.
Engine should stop after 1 minute.
1. Check A-A or B-B contacts for
2.
3.
4. Contact local authorized
1. Wait five minutes for transfer switch
2.
Correction
Refer to generator manual.
Wait for utility voltage to return
to normal.
proper operation and/or check
control wiring to external load.
Decrease load to generator.
Plug CT connectors into
control module.
service center.
to retransfer to utility power.
Check fuse(s) and replace
if necessary.
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