Specifications are subject to change without notice (26.09.06)
1
Monitoring Relays
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 Vp 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
Input (voltage level)
DUA01
Terminals Y1, Y2
PUA01
Terminals 5, 7
Measuring ranges
Direct
Int. resist.
Max. volt.
Selectable by DIP-switches
2 to 20 VAC/DC
> 500 k
Ω
600 V
5 to 50 VAC/DC
> 500 k
Ω
600 V
20 to 200 VAC/DC
> 500 k
Ω
600 V
50 to 500 VAC/DC
> 500 k
Ω
600 V
0.4 to 4 Vp AC
> 500 k
Ω
600 V
Max. voltage for 1 s
1000 V
MI and MP CT ranges
AAC rms
Max. curr.
1-ph.:
3-ph.:
MI 5
MP 3005
0.5 to 5 A
20 AAC
MI 20
MP 3020
2 to 20 A
50 AAC
MI 100
MP 3100
10 to 100 A
250 AAC
MI 500
MP 3500
50 to 500 A
750 AAC
Note:
The input voltage cannot
raise over 300 VAC/DC with
respect to ground (PUA01 only)
Contact input
DUA01
Terminals Z1, Y1
PUA01
Terminals 8, 9
Disabled
> 10 k
Ω
Enabled
< 500
Ω
Latch disable
> 500 ms
1-Phase AC/DC Over Voltage - AC Over Current
Types DUA01, PUA01
Input Specifications
Output
SPDT relay
Rated insulation voltage
250 VAC
Contact ratings (AgSnO2)µ
Resistive loads
AC 1
8 A @ 250 VAC
DC 12
5 A @ 24 VDC
Small inductive loads AC 15
2.5 A @ 250 VAC
DC 13
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)
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
Mounting
Output
Supply: 24 VDC
Supply: 48 VDC
Supply: 24/48 VAC
Supply: 115/230 VAC
DIN-rail
SPDT
DUA 01 C 724 500V
DUA 01 C 748 500V
DUA 01 C B48 500V
DUA 01 C B23 500V
Plug-in
SPDT
PUA 01 C 724 500V
PUA 01 C 748 500V
PUA 01 C B48 500V
PUA 01 C B23 500V
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