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ComPass A

The ComPass A device is a combined short-circuit and earth fault indicator for medium voltage distribution networks.

Short-Circuit and Earth Fault Indicator

Product Features

  • Short-circuit and earth fault detection by 3 single-phase current sensors
  • Phase-selective current monitor
  • Multilingual OLED display, additional multicolour LED
  • Remote indication via RS485/MODBUS interface and 4 freely configurable relay contacts
  • ComPass AP with pulse location
  • Simple and intuitive operation, easy-to-read display

The ComPass A device is a combined short-circuit and earth fault indicator for medium voltage distribution networks.

The device indicates the measuring results and parameter settings on a menucontrolled display and reports and parameterises these data remotely using the MODBUS protocol.

When the previously set trip values are exceeded, the red LED will start flashing. The rocker switch is used to indicate short-circuits or earth faults in plain text format on the display. In case of a fault, the 4 relays are energized transmitting the required information to the control station via relay contacts and MODBUS. The device saves the last 20 events along with date, time, and information on fault currents.

 

Equipment set:

  • 1 Display unit
  • 3 single-phase current sensors

Product

Note Item Number

display unit

Item Number38-0102-001


Technical Data

Technical Data

ComPass A

Short-circuit indicator

Earth fault indicator

Measured values/indication

  • Phase currents L1, L2, L3, IE with phase angle
  • Operating current, I 1,2,3 ø15 min, I 1,2,3 max. 24/7/365
  • Maximum demand indicator I max. LR
  • Frequency f

I>> Short-circuit trip current

10 – 2,000 A

tI>> Response delay

40 ms < t < 60 s

IE> Earth fault trip current

20 – 1,000 A (low-impedance/solidly earthed network)

tIE> Response delay

40 ms – 60 s

Accuracy

Class 1, 300 A ext. 200 %

3 % (0 – 630 A, resolution 1 A)

5 % (630 – 1,500 A)

10 % (1.500 – 2,000 A)

Indication

  • LED status display (multicolour)
  • OLED display (multilingual)

Reset

  • Manual reset
  • Remote reset
  • Automatic time reset: 1 min to 24 h
  • Via RS485/MODBUS interface
  • Auxiliary supply restoration
  • Current restoration

Remote signal/Communication

  • 4 potential-free relay contacts, freely configurable
  • RS485/MODBUS interface

Relay contact

4 permanent or momentary contacts (1 s), NC or NO (adjustable)

Contact capacity:
230 V AC/1 A/62.5 VA max.
220 V DC/1 A/60 W max.

Power supply

  • 24 to 230 V AC/DC (±10 %)
  • Built-in back-up supply
    3.6 V long-life lithium cell, lifetime ≥20 years,
    >1,000 h total flashing time of the LED, >1,000 activations of the display

Housing

Polycarbonate, IP40 (plug-in housing)

Temperature range

-30 to +70 °C

Accessories

Current Sensors

Short-circuit Current Sensor

  • Split-core cable-type current sensor
  • for retrofit on insulated cables
  • for short-circuit indicator types: SIGMA and ComPass
  • for conductor 15 – 55 mm Ø
  • cable length 3 m

more...
49-6024-001

External Signal Lamps

External Signal Lamp

  • with 3 LEDs (red)
  • 5 m connection cable, for permanent contact, with battery

more...
49-0702-005

Wall-mounted Housings

Wall-mounted housing including earthing bar

  • 290 x 74 x 200 mm (W x H x D)

more...
V49-9001-007-001
Wall-mounted housing including earthing bar

  • 125 x 175 x 125 mm (W x H x D)

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V49-9001-004-001
Wall-mounted housing

  • 125 x 75 x 125 mm (W x H x D)

  • Bottom cable entry

more...
49-9001-001
Wall-mounted housing

  • 125 x 75 x 125 mm (W x H x D)

  • Rear cable entry

more...
49-9001-002

Other

Disassembly clip

Disassembly clip for retracting plug-in housings

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040401-0008
Spring clip

Spring clip suitable for 2 mm front plate thickness (standard)

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040804-0009
Spring clip

Spring clip suitable for 3 mm front plate thickness

more...
040804-0010

Dimensioned Drawings

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Contact

Watch list