DWA01CM235A Datasheet, PDF (1/4 Pages) List of Unclassifed Manufacturers – Monitoring Relays 3-Phase Load Guard

Monitoring Relays
3-Phase Load Guard
Types DWA01, PWA01
DWA01
PWA01
• Cos ϕ 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 ϕ
monitoring relays.
The relays monitor their own
power supply voltage and
the current of a balanced 3-
phase system.
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.
Ordering key
Housing
Function
Type
Item number
Output
Power Supply
Range
DWA 01 C M48 5A
Type Selection
Mounting
Output
DIN-rail
Plug-in
SPDT
SPDT
Supply: 208 to 240 VAC
DWA 01 C M23 5A
PWA 01 C M23 5A
Supply: 380 to 415 VAC
PWA 01 C M48 5A
Supply: 380 to 480 VAC
DWA 01 C M48 5A
Input Specifications
Input
Voltage (Own power supply):
3 - phase
DWA01:
PWA01:
M23:
DWA01CM48:
PWA01CM48:
1- phase DWA01CM235A:
PWA01CM235A:
Current
DWA01:
PWA01:
Measuring ranges
Power factor (cos ϕ)
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
Level
0.1 to 0.99
Direct input
AACrms
0.5 to 5 A
Max. curr.
30A 30s
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
Note:
The input voltage cannot
raise over 300 VAC with
respect to ground (PWA01
only).
Hysteresis
~ cos ϕ = 0,02 - fixed
Output Specifications
Output
SPDT relay
Rated insulation voltage
250 VAC
Contact ratings (AgSnO2)
Resistive loads
AC 1
DC 12
Small inductive loads AC 15
DC 13
µ
8 A @ 250 VAC
5 A @ 24 VDC
2.5 A @ 250 VAC
2.5 A @ 24 VDC
Mechanical life
≥ 30 x 10⁶ operations
Electrical life
≥ 10⁵ operations
(at 8 A, 250 V, cos ϕ = 1)
Operating frequency
≤ 7200 operations/h
Dielectric strength
Dielectric voltage
≥ 2 kVAC (rms)
Rated impulse withstand volt. 4 kV (1.2/50 µs)
Specifications are subject to change without notice (09.12.05)
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