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14
UNIT SPECIFICATIONS
Item
Specifications
Model
Without a fuse: UG1-2***
With a fuse: UG1-2***F, UG1-4***F (*** indicates the rated
current.)
Main circuit
Number of phases
Single
Rated input voltage
100 V to 254 V, 380 V to 480 V
Power supply
fluctuation range
±10%
Rated frequency
50/60 Hz (automatic frequency judgment system)
Frequency fluctuation
range
Rated frequency ± 5%
Rated current
25, 35, 50, 75, 100, 150, 250, 350, 450 A
Control circuit
Control power supply
Single phase, 200/220 VAC, 25 VA (50 VA for units with
100 A or higher)
Rated frequency
50/60 Hz
Voltage that
guarantees
performance
180 to 242 VAC
Power supply to fan
Shared with the control power supply (units with 100 A or
higher)
Control method
Phase control, intermittent cycle control, continuous cycle control
* Feedback control is not available with the continuous cycle
control method.
Output voltage
adjustment range
Phase control: 0% to 100% of the main circuit power supply
voltage (effective value)
Cycle control: 0% to 100% of the main circuit power supply
voltage (effective value)
* Excluding the amount of voltage drop caused with the thyristor.
Gradient setting range
0% to 100% (for the output)
Lower point setting range 0% to 100% (for the output)
Ambient temperature
–10°C to 50°C (humidity: 90%RH or less)
Storage temperature
–20°C to 70°C
Load to apply
Phase control: Resistance load, inductive load, transformer
primary control
Cycle control: Resistance load (customized product: transformer
primary-side control)
Summary of Contents for CALPOTE UG Series
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