Wiring; Connecting Sitrans Lr460 - Siemens SITRANS LR460 HART Operating Instructions Manual

Wiring

WARNINGS:
• Turn off power to the device before unscrewing the housing cover in a
hazardous area.
• All field wiring for AC models must have insulation suitable for at least
250 V.
• The DC input terminals shall be supplied from a source that provides
electrical isolation between the input and the output, in order to meet
the applicable safety requirements of IEC 61010-1.
• The equipment shall be protected by a fuse or circuit breaker of up to
16 A in the building installation.
• A circuit breaker or switch in the building installation, marked as the
disconnect switch, shall be in close proximity to the equipment and
within easy reach of the operator.
• To avoid short-circuits, do not connect a load resistance with bare
wires inside the connection box.
Notes:
• AC and DC input circuits: min. 14 AWG (2.5 sq. mm) copper wire.
• Lay power cables separately from communication wiring.
• Recommended torque on terminal clamping screws: 0.5 to 0.6 N m (0.37 to 0.44 Lbf-ft).

Connecting SITRANS LR460

1. Release the cover lock on the enclosure with a 3 mm Allen key and unscrew the
cover. (Use a screwdriver for extra leverage, if required.)
2. Loosen the cable gland and push the power cable through until it reaches the
terminal strip.
cover
lock
HART wiring
(Go to
A5E42035355
metal bracket
terminal
strip
PROFIBUS wiring
on page 22 or
SITRANS LR460 – INSTRUCTION MANUAL
on page 23 for next steps.)
cable gland
power
cable
Page 21