Electrical panel and system components – Sterlco 2016C (Former Compact Series) User Manual
Page 11

COT-C Series Hot Oil Portable Temperature Control Units
Page 11
low fluid pressure
low fluid level
high fluid level (optional)
Push the
ALARM SILENCE
button to silence the alarm. See
Section 5 on page 31 for more information on control functions.
Electrical Panel and System Components
The pump motor and immersion heater operate on three-phase,
50/60 cycle, nominal voltage with the control circuit at 115 V
single phase. The control circuit voltage is provided by a single
phase machine tool transformer with primary fuse protection and a
grounded secondary. A main power disconnect is included as for
ease of service. The electrical panel is UL listed and complies with
N.F.P.A. 79 provisions.
All components are IEC rated for long life and reduced
maintenance. The heater elements are branch fused, and protected
from contactor welding by a separate primary voltage contactor.
The pump motor is controlled by a full voltage magnetic reversing
starter, with fused branch circuit overcurrent and thermal overload
protection. Many additional features are available as options.
A NEMA 12 enclosure is standard, with NEMA 4 available as an
option.