BECKHOFF KL1904 - Manual (Page 11)

System description
KL1904 9
2.1.2 Bus Terminals
Mechanical data
Mechanical data Bus Terminal
Material polycarbonate, polyamide (PA6.6).
Dimensions (W x H x D) (12 mm x 100 mm x 68 mm)
Installation on 35 mm mounting rail (EN50022) with locking
Attachable by double slot and key connection
Connection technology
Connection technology Bus Terminal
Wiring Cage Clamp ® spring-loaded system
Connection cross-section 0.08 mm 2 ... 2.5 mm 2 , stranded wire, solid wire
Fieldbus connection depending on fieldbus
Power contacts up to 3 blade/spring contacts
Current load 10 A
Rated voltage depends on Bus Terminal type
2.1.3 K-bus
The K-Bus is the data path within a terminal strip. The K-Bus is led through from the Bus Coupler through
all the terminals via six contacts on the terminals' side walls. The end terminal terminates the K-Bus.
2.1.4 Power contacts
The operating voltage is passed on to following terminals via two power contacts. Terminal strip can be
split into galvanically isolated groups by means of potential feed terminals as required. The power feed
terminals play no part in the control of the terminals, and can be inserted at any locations within the
terminal strip.