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參數(shù)資料
| 型號： | PWA01CM235A |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Monitoring Relays 3-Phase Load Guard |
| 中文描述： | 監(jiān)測繼電器三相負(fù)載衛(wèi)隊 |
| 文件頁數(shù)： | 1/4頁 |
| 文件大小： | 129K |
| 代理商： | PWA01CM235A |
Specifications are subject to change without notice (09.12.05)
1
Monitoring Relays
3-Phase Load Guard
Types DWA01, PWA01
Cos
monitoring relays
Measuring if power factor is within set limits
Measure on own power supply (voltage) and current
for balanced systems
Measuring ranges for current: 5A and MI current
transformers range
Power ON delay 1, 2 or 6 s selectable
Knob adjustable level on absolute scale
Output: 8 A SPDT relay Normally Energized
For mounting on DIN-rail in accordance with DIN/EN
50 022 (DWA01) or plug-in module (PWA01)
22.5 mm Euronorm housing (DWA01) or 36 mm
plug-in module (PWA01)
LED indication for power supply and output ON
Product Description
DWA01 and PWA01 are pre-
cise over or under cos
monitoring relays.
The relays monitor their own
power supply voltage and
the current of a balanced 3-
phase system.
Ordering key
Housing
Function
Type
Item number
Output
Power Supply
Range
For current measure direct
connection, 5A standard cur-
rent transformers and MI CT
can be used.
The LED's indicate the state
of the alarm and the output
relay.
Type Selection
Mounting
Output
Supply: 208 to 240 VAC
Supply: 380 to 415 VAC
Supply: 380 to 480 VAC
DIN-rail
Plug-in
SPDT
SPDT
DWA 01 C M23 5A
PWA 01 C M23 5A
DWA 01 C M48 5A
PWA 01 C M48 5A
Input Specifications
Input
Voltage (Own power supply):
3 - phase
DWA01:
PWA01:
M23:
L1, L2, L3
5, 6, 7
208 to 240 VAC ± 15%
380 to 480 VAC ± 15%
380 to 415 VAC ± 15%
L1, L3
5, 7
208 to 240 VAC ± 15%
5A: Y1, Y2
MI CT: Y1, Y3
5A: 7, 5
MI CT: 7, 6
DWA01CM48:
PWA01CM48:
1- phase DWA01CM235A:
PWA01CM235A:
Current
DWA01:
PWA01:
Measuring ranges
Level
0.1 to 0.99
Power factor (cos
)
AACrms
0.5 to 5 A
Max. curr.
30A 30s
Direct input
Standard CT (examples)
TADK 2 50 A/5 A
TAD 2 150 A/5 A
TAD 6 400 A/5 A
TAD 12 1000 A/5 A
TACO 200 6000 A/5 A
MI CT ranges
MI 100
MI 500
5 to 50 A
15 to 150 A
40 to 400 A
100 to 1000 A
600 to 6000 A
AAC rms
10 to 100 A
50 to 500 A
60 A
180 A
480 A
1200 A
7200 A
Max. curr.
250 AAC
750 AAC
DWA01
PWA01
Output Specifications
Output
Rated insulation voltage
Contact ratings
(AgSnO
2
)
Resistive loads
SPDT relay
250 VAC
μ
8 A @ 250 VAC
5 A @ 24 VDC
2.5 A @ 250 VAC
2.5 A @ 24 VDC
≥
30 x 10
6
operations
≥
10
5
operations
(at 8 A, 250 V, cos
= 1)
≤
7200 operations/h
AC 1
DC 12
Small inductive loads AC 15
DC 13
Mechanical life
Electrical life
Operating frequency
Dielectric strength
Dielectric voltage
Rated impulse withstand volt. 4 kV (1.2/50 μs)
≥
2 kVAC (rms)
Note:
The input voltage cannot
raise over 300 VAC with
respect to ground (PWA01
only).
Hysteresis
~ cos
= 0,02 - fixed
DWA 01 C M48 5A
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