Specifications are subject to change without notice (21.10.00)
1
Monitoring Relays
1-Phase AC/DC Over Voltage - AC Over Current
Types DUA01, PUA01
Product Description
Ordering Key
Housing
Function
Type
Item number
Output
Power supply
Range
AC/DC over voltage monitoring relay
Selection of measuring range by DIP-switches
Measuring ranges: 2 to 20 VAC/DC, 5 to 50 VAC/DC,
20 to 200 VAC/DC, 50 to 500 VAC/DC, 0.4 to 4 V
p
AC
Adjustable voltage limit on relative scale
Adjustable hysteresis
Programmable latching at set level
Output: 8 A SPDT relay normally de-energized
For mounting on DIN-rail in accordance with DIN/EN
50 022 (DUA01) or plug-in module (PUA01)
22.5 mm Euronorm housing (DUA01) or
36 mm plug-in module (PUA01)
LED indication for relay and power supply ON
Galvanically separated power supply
Type Selection
Mounting
Output
Supply: 24 VDC
Supply: 24/48 VAC
Supply: 115/230 VAC
DIN-rail
Plug-in
SPDT
SPDT
DUA 01 C 724 500V
PUA 01 C 724 500V
DUA 01 C B48 500V
PUA 01 C B48 500V
DUA 01 C B23 500V
PUA 01 C B23 500V
Input
(voltage level)
DUA01: Terminals Y1, Y2
PUA01: Terminals 5, 7
Measuring ranges
Direct
Selectable by DIP-switches
2 to 20 VAC/DC
5 to 50 VAC/DC
20 to 200 VAC/DC
50 to 500 VAC/DC
0.4 to 4 V
p
AC
Int. resist.
Max. volt.
> 500 k
> 500 k
> 500 k
> 500 k
> 500 k
Max. voltage for 1 s: 1000 V
AAC rms
600 V
600 V
600 V
600 V
600 V
MI and MP CT ranges
1-ph.: 3-ph.:
MI 5
MI 20
MI 100
MI 500
Max. curr.
MP 3005
MP 3020
MP 3100
MP 3500
0.5 to 5 A
2 to 20 A
10 to 100 A
50 to 500 A
20 AAC
50 AAC
250 AAC
750 AAC
Note:
The input voltage cannot
raise over 300 VAC/DC with
respect to ground (PUA01 only)
Contact input
DUA01
PUA01
Disabled
Enabled
Latch disable
Terminals Z1, Y1
Terminals 8, 9
> 10 k
< 500
> 500 ms
Input 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)
Output Specifications
DUA 01 C B23 500V
DUA01 and PUA01 are pre-
cise
AC/DC over voltage
monitoring relays. They can
also be used as 1-phase or 3-
phase over current monitoring
relays when connected with
MI or MP current transformers.
Owing to the built-in latch
function, the ON-position of
the relay output can be main-
tained.
The red LED indicates the
alarm status.
DUA01
PUA01