Datasheet

2 Specifications ar
e subject to change without notice (02.04.10)
DPA55
Mode of Operation
DPA55 monitors its own
3- phase power supply.
The relay operates when all
the phases are present, the
phase sequence is correct
and each phase-phase volt-
age is within the desired tol-
erance (± 10% or ± 15%).
Example 1
The relay monitors that the
power supply is the correct
one for the required equip-
ment.
Example 2
The relay releases in case of
incorrect phase sequence or
when the voltage is outside
the set limits.
Reaction time
Alarm ON delay < 100 ms
Alarm OFF delay < 300 ms
A
ccuracy
(
15 min warm-up time)
Temperature drift ± 1000 ppm/°C
Repeatability ± 0.5% on full scale
I
ndication for
Power supply ON LED, green
Relay ON LED, yellow
E
nvironment
Degree of protection IP 20
Pollution degree 2
Operating temperature
@ Max. voltage, 50 Hz -20 to +60°C, R.H. < 95%
@ Max. voltage, 60 Hz -20 to +50°C, R.H. < 95%
Storage temperature -30 to +80°C, R.H. < 95%
General Specifications
Range setting
Select the proper nominal
voltage level using DIP-
switches as shown below.
Voltage window
ON: ± 15 %
OFF: ± 10 %
Measuring range
SW2 SW3 SW4
208 VAC OFF OFF OFF
220 VAC OFF OFF ON
230 VAC OFF ON OFF
240 VAC OFF ON ON
380 V
AC ON OFF OFF
400 VAC ON OFF ON
415 VAC ON ON OFF
480 VAC ON ON ON
Housing
Dimensions 17.5 x 81 x 67.2 mm
Material PA66 or Noryl
Weight Approx. 80 g
S
crew terminals
Tightening torque Max. 0.5 Nm
acc. to IEC 60947
Product standard EN 60255-6
Approvals UL, CSA
CE Marking L.V. Directive 2006/95/EC
E
MC Directive 2004/108/EC
EMC
Immunity According to EN 60255-26
According to EN 61000-6-2
Emissions According to EN 60255-26
According to EN 61000-6-3