Beckhoff KL3403 Series, Документация

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Mounting and wiring
KL3403 30 Version: 3.1.0
CAUTION
Operate the current transformer as intended!
Please note that many manufacturers do not permit their current transformers to be operated in no-load
mode! Connect the KL3403 to the secondary windings of the current transformers before using the current
transformer!
UL compliance
Follow the instructions indicated below, in order to comply with the specifications of Underwriters
Laboratories.
Intended use
The terminals are exclusively intended for application with the UL-listed I/O systems of the
series BKxxxx, BCxxxx, BXxxxx, LCxxxx, CXxxxx, KLxxxx, KSxxxx or KMxxxx from Beck-
hoff.
cULus verification
For the cULus verification, the Beckhoff I/O system only examined for risk of fire or electric
shock (in accordance with UL508 and CSA C22.2 No. 142).
Phase voltage according to UL specifications 300 V max.
The maximum phase voltage of 500 V described in the technical data should be limited to
300 V for applications requiring UL approval.
Current transformer
Current measurement inputs with the IDs IL1, IL2, IL3, N may only be connected to isolat-
ing current transformers, which limit the available current to max. 5 A, 20 V.
No extended temperature range
The limited temperature range applies, if the KL3403-0000 / KS3403-0000 are used ac-
cording to UL conditions (see
Technical data [ } 19] ).
3.4 Application examples
Overview
• Application example for alternating current [ } 31]
• Application example for DC [
}
33]
• Application example with frequency converter [
}
34]
• Application example for KL3403-0014 [ } 36] (without internal shunts for current measurement)