Instructions for Use
ComPass B 4023841-001
Commissioning5.3.
The ComPass B is ready for operation after the following works have been completed: “Installation”
according to section 4, “Device conguration” according to section 5.1 and “Voltage calibration” ac-
cording to section 5.2.
Technical Data6.
Mechanical data
Plug-in housing for panel mount 96 x 48 x 96 mm (W x H x D)
DIN-cutout dimensions in the switchgear 92
+0.8
x 45
+0.6
mm
Weight of display unit 240 g
Degree of protection IP40
Electrical data
Power supply Internal supply: 3.6 V lithium cell, with 20-year shelf life
>1000 h total ashing time of the LED
>1000 activations of the display
External supply: 24-230 V AC/DC ±10 %
Power consumption <1 W (DC supply)
<1.5 VA (AC supply)
MV network parameters
Rated voltage 1–36 kV
Frequency 50 Hz/60 Hz
Load current (single-phase) 0–630 A
Short-circuit trip current 50–2000 A
Short-circuit response delay 40 ms < t < 60 sec
Earth fault trip current 20–1000 A (low-impedance/solidly earthed system)
5–200 A (isolated/resonant earthed system)
Earth fault response delay 40 ms < t < 60 sec
Reset options by automatic reset (1 min to 24 h), or
via external contact, or
by means of the rocker switch on the front side, or
on restoration of voltage/current, or
via RS485/MODBUS interface
Current measurement accuracy:
0 A – 630 A 3 % (Resolution 1A)
630 A – 1500 A 5 %
1500 A – 2000 A 10 %
Voltage measurement accuracy: ≤ 10 % (automatic calibration)
≤ 1 % (when using reference voltage for voltage
calibration)
18
Dipl.-Ing. H. Horstmann GmbH
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