Application Planning; Cable Glands - Siemens SIWAREX JB Operating Instructions Manual

Junction boxes

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Application planning

4.1

The signal cable to the electronic weighing system is fed into the enclosure through an EMC

cable gland. A high level of protection against electromagnetic interference (EMI) is achieved

due to the large area shielding in the cable gland. The cable glands are made of nickel-

plated brass.

The aluminum SIWAREX JB junction box is equipped with plastic cable glands as standard.

The connecting cables of the load cells are fed into the enclosure through plastic cable

glands. The shielding is attached to screw terminals. If electromagnetic interference from the

load cell cables is expected in the system, the plastic cable glands can be replaced with

EMC cable glands. EMC cable glands are available as accessories (Page 39). Maximum

immunity to interference is achieved by the large area shielding layer.

The stainless steel SIWAREX JB junction box is equipped with EMC cable glands as

standard. The connecting cables of the load cells are fed into the enclosure through EMC

cable glands. A high level of protection against electromagnetic interference (EMI) is

achieved due to the large area shielding in the cable gland. The cable glands are made of

nickel-plated brass.

Purchase EMC cable glands in stainless steel from the appropriate suppliers. Note that the

cable glands must be approved for the respective applications. See Service and support

(http://www.siemens.com/automation/service&support)

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