Power supply cable cross-section
Power supply model
Type L50 (54 A)
Type L150 (128 A)
Network
13 mm
2
(AWG6)
33 mm
2
(AWG2)
Brake resistor
13 mm
2
(AWG6)
33 mm
2
(AWG2)
24 V DC
0.8 mm
2
AWG 18
Earth
13 mm
2
(AWG6)
33 mm
2
(AWG2)
DR2020
MAR2-E-191
22
For the o 24Vdc power supply, generally consider adding 0.5 mm
2
for each DM2020 module up to the power supply module and
then at least 2.5 mm2 for the DR2020 series as a general rule, check whether to increase the section according to the layout of the
installation.
The maximum section accepted by the DR2020 power terminals is 4 mm
2
Information for PS L50 = 54arms
To supply all the rated current of the power supply, the DC BUS -> DR2020 terminal block connection cable must have the following
characteristics up to the possible junction box:
We suggest an AWG 6 copper cable, shielded or at least twisted, having a minimum temperature classification of the conductor of 90 °
C.
To terminate the cable it is possible to use NON-INSULATED 16mmq TERMINALS for M6 model BM 01531 screw (alternatively
CEMBRE A3-M6) or equivalent.
They must be protected in case of accidental contact (insulating or heat-shrinking tube), with INSULATING CAP FOR NON-ISOLATED
TERMINALS Model BM 81016, or alternatively with VW-1 UL-DIA.9,5 THERMOR-EXTRACTION TUBE Model PANDUIT HSTTV38 or
equivalent.
Information for the PS L150 = 128arms
To supply all the rated current of the power supply, the DC BUS -> DR2020 connection cable must have the following characteristics up
to the possible junction box:
We suggest an AWG 6 copper cable, shielded or at least twisted, with a minimum temperature classification of the conductor of 90 ° C.
The maximum external encumbrance value of the cable lug cannot exceed 15mm and to terminate the cables use the 35mmq NON-
INSULATED TERMINAL for M6 screw Model BM 017313 (alternatively CEMBRE A9-M6 / 15 or A7 B-M6 / 11.5 ) or equivalent. They
must be protected against accidental contact with a specific protection (insulating or heat-shrinking tube), with INSULATING CAP FOR
NON-ISOLATED TERMINALS Model BM 81035 or alternatively with VW-1 UL-DIA.12-THERMO-THERMO-PIPE Model PANDUIT
HSTTV50 or equivalent.
