|
Phase |
Single-phase |
|
Rated current |
20, 30,
40, 50, 75, 100A (to be specified) |
|
Rated voltage |
100 to
120VAC, 200 to 240VAC (selectable by
terminals) |
|
Rated frequency |
50/60Hz
(automatic change) |
|
Input signal |
4 to
20mADC, 1 to 5VDC or ON-OFF contact signal
(selectable by terminals) |
|
Input resistance |
100 (4 to 20mADC), 25 (1 to 5VDC) |
|
Output range |
0 to 98%
of rated voltage |
|
Minimum load current |
0.5A (at
98% output) |
|
Applicable load |
Resistive
load, inductive load (primary side control of
transformer, flux density 1.2T or lower,
phase-angle firing system only) |
|
Control system |
Phase-angle firing/zero-cross firing
(selectable by internal dip switches) |
|
Output setting range |
Ramp
setting (0 to 100%)
Low limit setting (0 to
100%) |
|
Over-current protection |
Thyristor
gate-off (120% or more of rated current, on
built-in or external CT) |
|
Other functions |
Soft-start, soft-up/down (1 to 20 seconds),
soft-start at power failure recovery |
|
Dimension |
H172 x W48
x D143mm (for 20A, 30A)
H188 x W68 x D148mm
(for 40A, 50A)
H200 x W116 x D157mm (for 75A,
100A) |
|
Weight |
About
1.0kg for 20A and 30A, about 1.3kg for 40A and
50A, about 1.9kg for 75A and
100A |
