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参数资料
| 型号： | PWRS220A |
| 厂商： | Crouzet USA |
| 文件页数： | 2/4页 |
| 文件大小： | 0K |
| 描述： | CONTROL RELAY PHASE 3X220VAC |
| 其它有关文件： | Declaration of Conformity |
| 标准包装： | 1 |
| 系列： | * |
| 其它名称： | 966-1167 PWRS220A-ND |
WRA CONTROL RELAY
CONTROLS
PHASE
SERIES
CONTROLS
UL listed
CSA recognized (220 VAC Version Only)
? Monitors
Phase Sequence
Loss of Any Phase even if Induced Voltage
reaches 95% of Nominal Voltage
? LED Relay Status Indicator
? SPDT 10 Amp Relay Output
MODE OF OPERATION:
WIRING DIAGRAM:
RST
RTS
RST
RS
N
R
S
T
T
R = L1
S = L2
T = L3
R
D1
The WRL Phase Control Relay monitors the sequence loss or reversal
11
R
S
T
of three phase power supplies. The output relay is energized when
the phase sequence is correct and is de-energize when the phase
sequence is wrong or one phase is lost. It monitors the symmetry
of 3 voltages and a loss of phase even when the voltage is reinjected
through a machine. The rate of asymmetry is controlled between 5%
and 15% by a top mounted potentiometer.
STOP
12 14
SPECIFICATIONS:
START
d1
U
V
W
Input Power Directly
. . . . . . . . 3 x 220 60 Hz
from controlled voltage ±15%
3 x 380 60 Hz
3 x 440 60 Hz
Power consumption . . . . . . . . . 3 VA at 220 V
M
Output
. . . . . . . . . . . . . . . . . . . SPDT relay
Contact material
Maximum Loading
. . . . . . . . . . . AgCdO
. . . . . . . . . 10 AC resistive 8A DC inductive
Maximum switching voltage
. . 250 VAC 250 VDC
Relay max. power rating . . . . . 220 VA 80 W
Mechanical life of relay . . . . . . 30 x 10 6 operations
Electrical life of relay . . . . . . . . 2 x 10 5 operations at 2200VA resistive load
Operating temperature . . . . . . +14°F to +140°F -10°C to +60°C
DWRA
LWRA
11
1
12
4
14
3
R
5
S
6
T
7
Weight
. . . . . . . . . . . . . . . . . . . 7 oz. (200g)
PWRA
1
2
8
3
4
5
Note : The alarm threshold adjustment is 5% to 15% of asymmetry between
the phases. The initial response time is .1 seconds at 5% asymmetry and 1
second at 15% after input power is applied. When a phase loss or failure
occurs, the “off delay” response time is 100 ms.
ORDERING INFORMATION:
L
WRA
380 A
MOUNTING
D = DIN-rail mounting
L = 11 pin plug-in
P = 8 pin plug-in
MOUNTING
SERIES
SERIES
WRA
INPUT POWER
INPUT POWER
220A = 3 x 220 VAC
380A = 3 x 380 VAC
440A = 3 x 415/440 VAC
Products and specifications subject to change without notice.
Order/Technical Support – Tel: (800) 677-5311 / FAX: (800) 677-3865 / www.crouzet-usa.com
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