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Technical Features - COMEM eBR Bedienungsanleitung

Elektronisches buchholz-relais
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Technical features

Material
Color
Ambient temperature
Degree of protection
Oil temperature
Weight
Ventilation valve
Cable gland
Terminal box
Wires
Oil flow speed (m/s)
Electronic board features
Power supply (terminals 1-2)
Power consumption
Analog output (terminals 41-42)
Distance for analog output
Digital output (terminals 3-4)
Distance for digital output
Switch electrical data (according to EN50126-1/2)
Breaking capacity
Dielectric strength of contacts
Between circuits and earth
Between contacts in open positions 1
(1) Only for C4 corrosion class, for critical environmental conditions please contact COMEM (customerservice@it.comem.com)
(2) This test cannot be performed between the flow vanes contacts in open position in case they are connected to the electronic board
(3) In case the flow vanes contacts are connected to the electronic board (see order sheet in the appendix B, line "Flow vane contacts status verification via Modbus"
selected YES), the available voltages are:
• 24-48 V a.c/d.c.
• 110-220 V a.c./d.c.
Table 3
8
All the external parts are resistant to transformer oils, salt fog and UV rays.
RAL 7032
(1)
From -40°C up to +80°C
IP65 according to EN60529
From -40°Cup to 115°C
6,5 kg
1, to prevent the formation of condensation
2 x M25x1.5
Screw terminal 2.5mm
2
Max 2.5mm
– advised 4x1mm
2
Alarm
-
1,0
1,0/1,5
1,0/1,5/2,0
1,0/1,5/2,0/2,5
24 Vdc ±10% polarized
0,5 W
4- 20 mA (dielectric strength between electronic card and analog output:1kV)
Minimum / Maximum resistance: 100 / 470 Ω
Max 30 m / 98 ft (for different demands contact COMEM)
Serial RS485 (for more information contact COMEM)
Max 30 m / 98 ft (for different demands contact COMEM)
Voltage
Current
(3)
24 d.c. to 220 V d.c.
2 A for 1000 maneuvers
230 V a.c.
2 A for 1000 maneuvers
Short duration power frequency
withstand voltage 1 min – kV (r.m.s.)
2
(2)
o 6x1mm
shielded twisted pair cable for analog/digital output
2
2
Trip
1,0
1,5
2,0
2,5
3,0
Lightning impulse withstand voltage
kV (peak)
4
3
(2)
ELECTRONIC BUCHHOLZ RELAYS eBR
Breaking capacity
250 W
L/R<40 ms
400 VA
cosФ>0.5

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