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Monitoring Relays
1-Phase AC/DC Over Voltage - AC Over Current
Types DUA01, PUA01
DUA01
• 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
PUA01
Product Description
DUA01 and PUA01 are precise 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
Ordering Key
transformers.
Owing to the built-in latch
function, the ON-position of
the relay output can be
maintained.
The red LED indicates the
alarm status.
DUA 01 C B23 500V
Housing
Function
Type
Item number
Output
Power supply
Range
Type Selection
Mounting
Output
Supply: 24 to 48 VAC/DC
Supply: 115/230 VAC
DIN-rail
Plug-in
SPDT
SPDT
DUA 01 C D48 500V
PUA 01 C D48 500V
DUA 01 C B23 500V
PUA 01 C B23 500V
Input Specifications
Input (voltage level)
DUA01
PUA01
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 Vp AC
Max. voltage for 1 s
MI and MP CT ranges
1-ph.:
3-ph.:
MI 5
MP 3005
MI 20
MP 3020
MI 100
MP 3100
MI 500
MP 3500
Note:
The input voltage cannot
raise over 300 VAC/DC with
respect to ground (PUA01 only)
Contact input
DUA01
PUA01
Disabled
Enabled
Latch disable
Output Specifications
Terminals Y1, Y2
Terminals 5, 7
Int. resist.
Max. volt.
> 500 kΩ
> 500 kΩ
> 500 kΩ
> 500 kΩ
> 500 kΩ
600 V
600 V
600 V