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microBlox® Transmitter/Alarm Carrier
Model uBTA-H-1MR/uBTA-H-1SR/uBTX-H-1
Acromag, Inc. Tel: 248-295-0880
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http://www.acromag.com
- 8 -
https://www.acromag.com
ELECTRICAL CONNECTIONS
WARNING
–
EXPLOSION HAZARD
–
Do not disconnect equipment unless power has
been removed or the area is known to be non-hazardous.
WARNING
–
EXPLOSION HAZARD
–
Substitution of any components may impair
suitability for Class I, Division 2.
WARNING
–
EXPLOSION HAZARD
–
The area must be known to be non-hazardous
before servicing/replacing the unit and before installing.
Carrier terminals can accommodate 14
–
26 AWG (2.5
–
0.14mm
2
) solid or stranded wire
with a minimum temperature rating of 85
o
C. Input wiring may be shielded or
unshielded type (twisted pair or shielded twisted pair input wiring is recommended).
Terminals are pluggable and can be removed from their sockets by prying outward from
the top with a flat-head screwdriver. Strip back wire insulation 0.25-inch on each lead
and insert the wire ends into the cage-clamp terminal block connector. Use a
screwdriver to tighten the screw by turning it clockwise to secure the wire (use 0.5-
0.6nM torque). Since common mode voltages can exist on I/O wiring, adequate wire
insulation should be used and proper wiring practices followed. As a rule, input wires
are normally separated from power, output, and relay wiring for safety and isolation
support, as well as for low noise pickup.
Isolation Barriers
uBTA-H-1MR Shown or uBTA-H-1SR
!