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FOUNDATION fieldbus and PROFIBUS-PA

IP20 junction box, 8-channel

JRBS-40SC-8C/EX

The 8-channel Ex junction box

JRBS-40SC-8C/EX is designed for fieldbus

systems according to IEC 61158-2, i.e. it is

suited for both FOUNDATION™ fieldbus as

well as PROFIBUS-PA.

The junction box is equipped with an ad-

justable short-circuit current limiter. As maxi-

mum current limit, the following values can be

selected together for all channels via a rotary

coding switch: 30, 35, 45 and 60 mA.

The housing is made of powder-coated alu-

minium and is IP20 rated.

The junction box is equipped with an acti-

vatable terminating resistor for the bus. The

switch is integrated in the housing on the

board.

Shielding and housing can be conected direct-

ly via a second switch which is also located on

the board.

Note: It must be ensured that there is suffi-

cient equipotential bonding in the system. The

device is connected to the equipotential bond-

ing via the housing's M5 x 1 grounding bold.

Accessories: To increase the degree of pro-

tection, there are various aluminium and stain-

less steel housings with IP6x rating and vari-

ous cable glands available on request.

■ Junction box for DIN rail mounting

■ Short-circuit protection per drop line/spur

■ Switch-in terminating resistor

■ Cable shielding: Capacitive or direct con-

nection with housing potential selectable

via switch

■ aluminium housing

■ Entity and FISCO compliant according to

IEC 60079-11