Model KDW15A Flameproof and I.S. Power Supply can be used for supplying power to mine-used intrinsic safety devices in environment with explosion danger of methane and coal dust.
Technical
Parameters
Input:
AC 127, 220, 380 or 660 V (selected by the user in ordering);
Frequency 50 Hz, voltage variation range75%115%.
Output:
Single-channel DC stabilized power supply of intrinsic safety
type, with parameters detailed as follows (Rated output voltage
shall be confirmed in ordering)
Rated
Voltage
(V)
Rated
Current
(A)
Act Voltage of I.S. Output
Overvoltage
Protection
(V)
Act Current
of I.S. utput
Overcurrent
Protection
(A)
Voltage
Regulation
Rate
(%)
Current
Regulation
Rate
(%)
Ripple
Voltage
(Vp-p)
Maximum
External Load Capacitance
(F)
158%
1.0
15.8
1.05
2
10
1%Vo
4.7
188%
1.0
18.8
1.05
2
8
1%Vo
4.7
245%
0.5
25
0.525
2
5
1%Vo
2.2
Protection: Cutting-off type double protection of over-voltage and over-current
115%. 
F)
8%
15.8
158