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SCR Power Regulator SCR Power Regulator , THYRISTOR POWER REGULATOR
Product Features:
- Independent adjustment of Max and BIAS
- Down-opened Panel, easy for fuse replacement.
- VR of Max and SFS are installed in the front panel, easy for adjustment.
- Multi-LED display panel makes the operating condition clear.
- The auxiliary powers (ACI, AC2) are independently controlled for all models.
- Build-in buffering output adjustment (SFS VR), adjusting range 1~22 seconds.
(Only for the phase control products)
- Top & bottom shielding covers are designed for safety and fashion out looking, also easy for wiring installation
- In case of 0.5 Hz sudden power losses, system output can switched off immediately.
Once the power is restored, the system will buffer the output to prevent the voltage surge for fuse burn-down.
- Main power is one spec. Design for 200~480VAC.
- Automatic power frequency detection for 50~60 Hz. No need for selection or switch
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- Automatic detection and display for power out-of-phase, SCR overheating, and fuse burn-down with one set of alarm dry contact output.
- In cases of SCR overheating or fuse burn –down, the system output is stopped immediately. Once the malfunction is eliminated and power is restored, the system will buffer the output to prevent the fuse burn-down.
- 4~20mA, 1~5VDC, 2~10VDC, 0~20mA, 0~5 VDC, 0~10 VDC, Dry contact points, etc. and all control signals are ready to use.
- Triggering circuit and the main board are designed separately to avoid the main board damage when main circuit malfunctions.
- Using European detachable control signal connector for easy replacement without re-wiring installation.
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SCR UNIT REGULATOR

Installation and ambient conditions:
- When the power regulator is operating, the heat will be generated automatically. Please install the system vertically and leave some empty space on two sides to aviod the temperature inside the regulator rising continuously.
- There must be some ventilation holes on the control box. Please follow the principle of hard air rising to intall the ventilation holes or estra cooling fans.
- Please avoid installing the regulator in the place with high temperature or poor ventilation. Otherwise, the maximum operating capacity must be set lower than 70% of the nominal capacity.
- Avoid installing the regulator in the places with heavy water evaporation, acid, alkaline, or corrosive air.
- Ambient humidity: below 90% RH (no condensation)
- Ambient temperature: -10-45℃
Normal rated capacity %

The above numbers are based on the conditions of no erosion, no greasy dirt, and no cover on the heat sink and following the recommended installation guides based on the principle of heat transfer.

Control and applied loading

-
Phase angle control:
continuous phase angle control, steady output, current gauge reading remains steady. But, every half wave will produce harmonic wave.
Applicable loading:
fixed resistance loading, variable resistance loading, inductive loading, IR light bulb.
-
Zero crossing control:
distributed zero crossing control, minimum resolution 1 Hz, no harmonic wave, and current gauge reading oscillates.
Applicable loading:
fixed resistance loading.
Wiring and setup notices
www.siaminstrument.com |
can cut off power to prevenr personnel from electric shock during maintenance.
can cut off supplied loading power when the power regulator malfunctions or the tenperature is higher than pre-set value. Cutting off the power can avoid the system burn down by overheating and prevent more serious damage.
can adjust the output power according to the control signal. (This product is embedded with the high-speed fuse, extra fuse is not nccessary.) |
Selection of the input signal
Single phase, Single phase zero crossing, Two-wire three-phase zero crossing (SP, SZ, TZ)
Connector Pin |
Connector
No. |
Description |
Notes |
TB-01 |
FS |
Detection of the fuse burn down |
Do not connect |
TB-02 |
M |
+5VDC |
Only for this control board, not for other use
positive control signal input. |
TB-03 |
+ |
Positive control signal input |
The default setting is 4~20mA when the
sticker is not marked. |
TB-04 |
- |
Standard and analog signal voltage |
TB-05 |
E3 |
Connected to the VR 3rd pin of the outside
potentiometer |
Adjustable output 0~100%, Please eliminate
the shorted copper wire between E3 and E2
when using the outside potentiometer with
VR. (2~10KΩ) |
TB-06 |
E2 |
Connected to the VR 2rd pin of the outside
potentiometer |
TB-07 |
E1 |
Connected to the VR 1st pin of the outside
potentiometer |
TB-08 |
NC |
Alarm connector output (normal close) |
Connector capacity |
227VAC 2A. |
TB-09 |
COM |
Alarm connector output (Common point) |
125VAC 2A. |
TB-10 |
NO |
Alarm connector output (normal open) |
30VAC 2A. |
TB-11 |
AC1 |
Auxiliary power source |
Please refer to the stick for the auxiliary
power and voltage. |
TB-12 |
AC2 |
Three-wire three-phase angle, Three-wire three-phase zero crossing (TP, ZZ)
Connector Pin |
Connector
No. |
Description |
Notes |
TB-01 |
• |
Empty pin |
Do not connect |
TB-02 |
M |
+5VDC |
Only for this control board, not for other use
positive control signal input. |
TB-03 |
+ |
Positive control signal input |
The default setting is 4~20mA when the
sticker is not marked. |
TB-04 |
- |
Standard and signal voltage |
TB-05 |
E3 |
Connected to the VR 3rd pin of the outside
potentiometer |
Adjustable output 0~100%, Please eliminate
the shorted copper wire between E3 and E2
when using the outside potentiometer with
VR. (2~10KΩ) |
TB-06 |
E2 |
Connected to the VR 2rd pin of the outside
potentiometer |
TB-07 |
E1 |
Connected to the VR 1st pin of the outside
potentiometer |
TB-08 |
NC |
Alarm connector output (normal close) |
Connector capacity |
227VAC 2A. |
TB-09 |
COM |
Alarm connector output (Common point) |
125VAC 2A. |
TB-10 |
NO |
Alarm connector output (normal open) |
30VAC 2A. |
TB-11 |
AC1 |
Auxiliary power source |
Please refer to the stick for the auxiliary
power and voltage. |
TB-12 |
AC2 |
Applicable high-speed fuse for the power regulator
Rated current |
30A |
45A |
60A |
80A |
100A |
Fuse |
40FE |
63FE |
80FE |
100FE |
660GH-125 |
Brand |
Bussmann |
Bussmann |
Bussmann |
Bussmann |
HINODE |
Rated current |
125A |
150A |
180A |
230A |
300A |
Fuse |
80FE*2 |
100FE*2 |
660GH-125*2 |
250FM |
315FM |
Brand |
Bussmann |
Bussmann |
HINODE |
Bussmann |
Bussmann |
Rated current |
380A |
450A |
580A |
720A |
Fuse |
660GH-400 |
250FM*2 |
315FM*2 |
660GH-400*2 |
Brand |
Bussmann |
Bussmann |
Bussmann |
HINODE |
Wiring setup examples for and Single-phase, Single-phase zero crossing,
and Two-wire three-phase zero crossing
Wiring setup examples for and Three-wire three phase angle
and Three-wire three-phase zero crossing:
Single-phase angle and single-phase zero crossing control (W5SP, W5SZ) |
Normal
rated current |
Figure |
Outline
dimensions (mm) |
Net
weights
(kg)
|
Packed
dimensions (mm) |
Packed weights (kg)
|
Fixed-hole dimensions (mm) |
Main power source screw |
Way of cooling |
Length |
Width |
Height |
Length |
Width |
Height |
L1 |
L2 |
L3 |
W |
30A |
A |
162 |
98 |
133 |
1.3 |
225 |
127 |
166 |
1.5 |
122 |
O |
O |
90 |
M6 |
Air-cooling |
45A |
A |
200 |
98 |
133 |
1.5 |
262 |
127 |
166 |
1.7 |
122 |
O |
O |
90 |
M6 |
Air-cooling |
60, 80A |
B |
162 |
112 |
183 |
1.7 |
225 |
140 |
220 |
2.0 |
122 |
O |
O |
104 |
M6 |
Air-cooling |
100A |
C |
189 |
112 |
183 |
2.0 |
250 |
140 |
220 |
2.3 |
122 |
O |
O |
104 |
M6 |
Fan-cooling |
125, 150, 180A |
C |
275 |
112 |
183 |
3.0 |
336 |
140 |
220 |
3.4 |
122 |
86 |
O |
104 |
M8 |
Fan-cooling |
230A |
C |
287 |
112 |
188 |
3.4 |
345 |
140 |
220 |
3.8 |
122 |
86 |
O |
104 |
M10 |
Fan-cooling |
300,380A |
I |
390 |
140 |
248 |
6.4 |
450 |
168 |
277 |
7.0 |
122 |
86 |
94 |
132 |
M10 |
Fan-cooling |
450A |
I |
390 |
140 |
248 |
7.1 |
450 |
168 |
277 |
7.7 |
122 |
86 |
94 |
132 |
M10*2 |
Fan-cooling |
580A |
I |
460 |
140 |
248 |
8.6 |
600 |
265 |
390 |
10.5 |
122 |
86 |
94 |
132 |
M10*2 |
Fan-cooling |
720A |
I |
560 |
140 |
248 |
10.4 |
700 |
265 |
390 |
12.7 |
122 |
86 |
239 |
132 |
M10*2 |
Fan-cooling |
|
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* Two-wire three-phase zero crossing control (W5TZ): |
|
Normal rated current |
Figure |
Outline
dimensions (mm) |
Net weights (kg) |
Packed dimensions (mm) |
Packed weights (kg) |
Fixed-hole dimensions (mm) |
Main power source screw |
Way of cooling |
Length |
Width |
Height |
Length |
Width |
Height |
L1 |
L2 |
L3 |
W |
30A |
A |
162 |
98 |
133 |
1.5 |
225 |
127 |
166 |
1.7 |
122 |
O |
O |
90 |
M6 |
Air-cooling |
45A |
B |
162 |
112 |
183 |
1.9 |
225 |
140 |
220 |
2.2 |
122 |
O |
O |
104 |
M6 |
Air-cooling |
60, 80, 100A |
C |
189 |
112 |
183 |
2.2 |
250 |
140 |
220 |
2.5 |
122 |
O |
O |
104 |
M6 |
Fan-cooling |
125A |
C |
275 |
112 |
183 |
3.1 |
336 |
140 |
220 |
3.5 |
122 |
86 |
O |
104 |
M8 |
Fan-cooling |
150A |
F |
326 |
140 |
205 |
4.5 |
388 |
168 |
245 |
5.0 |
122 |
86 |
O |
132 |
M8 |
Fan-cooling |
180A |
F |
382 |
140 |
205 |
5.6 |
443 |
168 |
245 |
6.1 |
122 |
86 |
94 |
132 |
M8 |
Fan-cooling |
230A |
G |
310 |
155 |
265 |
10.4 |
445 |
260 |
420 |
12.0 |
230 |
O |
O |
143 |
M10 |
Fan-cooling |
300,380A |
G |
390 |
155 |
265 |
14.3 |
525 |
260 |
420 |
16.3 |
230 |
80 |
O |
143 |
M10 |
Fan-cooling |
450A |
J |
390 |
260 |
248 |
13.2 |
535 |
385 |
390 |
15.7 |
122 |
86 |
94 |
252 |
M10*2 |
Fan-cooling |
580A |
J |
460 |
260 |
248 |
16.1 |
600 |
385 |
390 |
18.7 |
122 |
86 |
94 |
252 |
M10*2 |
Fan-cooling |
720A |
J |
560 |
260 |
248 |
20.0 |
700 |
385 |
390 |
23.0 |
122 |
86 |
239 |
252 |
M10*2 |
Fan-cooling |
|
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* Three-wire three-phase angle, Three-wire three-phase zero crossing (W5TP, W5ZZ): |
Normal rated current |
Figure |
Outline dimensions (mm) |
Net weights (kg) |
Packed dimensions (mm) |
Packed weights (kg) |
Fixed-hole dimensions (mm) |
Main power source screw |
Way of cooling |
Length |
Width |
Height |
Length |
Width |
Height |
L1 |
L2 |
L3 |
W |
30A |
D |
200 |
140 |
145 |
2.5 |
262 |
168 |
182 |
2.9 |
122 |
O |
O |
132 |
M6 |
Air-cooling |
45A |
E |
200 |
140 |
205 |
3.0 |
262 |
168 |
245 |
3.4 |
122 |
O |
O |
132 |
M6 |
Air-cooling |
60, 80, 100A |
F |
202 |
140 |
205 |
3.1 |
262 |
168 |
245 |
3.5 |
122 |
O |
O |
132 |
M6 |
Fan-cooling |
125A |
F |
288 |
140 |
205 |
4.4 |
350 |
168 |
245 |
5.0 |
122 |
86 |
O |
132 |
M8 |
Fan-cooling |
150A |
F |
326 |
140 |
205 |
4.8 |
388 |
168 |
245 |
5.4 |
122 |
86 |
O |
132 |
M8 |
Fan-cooling |
180A |
F |
382 |
140 |
205 |
5.8 |
443 |
168 |
245 |
6.3 |
122 |
86 |
94 |
132 |
M8 |
Fan-cooling |
230A |
H |
322 |
215 |
265 |
15.3 |
450 |
313 |
420 |
17.3 |
230 |
O |
O |
203 |
M10 |
Fan-cooling |
300,380A |
H |
402 |
215 |
265 |
21.1 |
540 |
313 |
420 |
23.4 |
230 |
80 |
O |
203 |
M10 |
Fan-cooling |
450A |
K |
390 |
380 |
248 |
19.7 |
525 |
505 |
390 |
22.6 |
122 |
86 |
94 |
372 |
M10*2 |
Fan-cooling |
580A |
K |
460 |
380 |
248 |
24.4 |
600 |
505 |
390 |
27.4 |
122 |
86 |
94 |
372 |
M10*2 |
Fan-cooling |
720A |
K |
560 |
380 |
248 |
29.6 |
700 |
505 |
390 |
33.3 |
122 |
86 |
239 |
372 |
M10*2 |
Fan-cooling |
|
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