Datasheet
Specifications are subject to change without notice (16.10.06) 1
Monitoring Relays
Product Description
Or
dering Key
Housing
Function
T
ype
Item number
Output
Power supply
Range
• TRMS AC/DC over+under, over+over or
under+under voltage monitoring relays
• Selection of measuring range by DIP-switches
• Measuring ranges from 2 to 500 V AC/DC
• Adjustable voltage on relative scale
• Adjustable hysteresis on relative scale
• Adjustable delay function (0.1 to 30 s)
•
Programmable latching or inhibit at set level
• Output: 1 or 2 x 8 A SPDT relay N.D. or N.E. selectable
• For mounting on DIN-rail in accordance with
DIN/EN 50 022 (DUC01) or plug-in module (PUC01)
• 45 mm Euronorm housing (DUC01)
or 36 mm plug-in module (PUC01)
• LED indication for relay, alarm and power supply ON
• Galvanically separated power supply
Type Selection
Input (voltage level)
DUC01 Terminals Y1, Y2
PUC01 Terminals 5, 7
Measuring ranges
Direct Internal resist. Max. volt.
Selectable by DIP-switch
2 to 20 V AC/DC > 500 k
Ω 350 V
5 to 50 V AC/DC > 500 k
Ω 350 V
20 to 200 V AC/DC
> 500 kΩ 600 V
50 to 500 V AC/DC > 500 k
Ω 600 V
Max. voltage for 1 s 1000 V
Note:
The input voltage cannot
raise over 300 V
AC/DC
with respect to ground
(PUC01 only)
Contact input
DUC01 Terminals Z1, Y1
PUC01
T
er
minals 8, 9
Disabled > 10 k
Ω
Enabled < 500 Ω
Latch disable
> 500 ms
1-Phase True RMS AC/DC Over and Under Voltage
Types DUC01, PUC01
Input Specifications
Output 2 x SPDT r
elays (DUC01)
1 x SPDT relays (PUC01)
Rated insulation voltage 250 VAC
Contact ratings (AgSnO
2
)
µ
Resistive loads AC 1 8 A @ 250 VAC
DC 12 5 A @ 24 VDC
Small inductive loads AC 15
2.5 A @ 250 V
AC
DC 13
2.5 A @ 24 VDC
Mechanical life ≥ 30 x 10
6
operations
Electrical life ≥ 10
5
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
DUC 01 D B23 500V
DUC01 and PUC01 are pre-
cise TRMS AC/DC over+under,
over+over or under+under
voltage (selectable by DIP-
switch) monitoring relays. The
voltage levels are adjustable
separately and have their own
time delay.
Owing to the built-in latch
function, the ON-position of
the relay output can be
maintained. Inhibit function
can be used to avoid relay
operation when not desired
(maintenance, transitions).
The LED's indicate the state
of the alarm and the output
relay.
D
UC01
PUC01
Mounting Output Supply: 24 VDC Supply: 48 VDC Supply: 24/48 VAC Supply: 115/230 VAC
DIN-rail 2xSPDT DUC 01 D 724 500V DUC 01 D 748 500V DUC 01 D B48 500V DUC 01 D B23 500V
Plug-in SPDT PUC 01 C 724 500V PUC 01 C 748 500V PUC 01 C B48 500V PUC 01 C B23 500V