Submittal Sheet

SOLID CORE AND SPLIT CORE 4-20 MA OUTPUT CURRENT SENSORS
63-2654—1 6
Fig. 6. Opening sensor by hand
Fig. 7. Opening with a screwdriver
Wiring
Honeywell recommends the use of 16 to 22 AWG (1.3 to
0.3 mm
2
) shielded cable, copper wire only for all current
sensor applications. A maximum wire length of less than
98.4 feet (30 meters) should be used between the current
switches and the Building Management System or controller.
NOTE: When using a shielded cable, be sure to connect only
(1) end of the shield to ground at the controller.
Connecting both ends of the shield to ground may
cause a ground loop.
When removing the shield from the sensor end, make sure to
properly trim the shield so as to prevent any chance of
shorting. The current sensor terminals are polarity sensitive
and represent a linear and proportional 4 to 20 mA output
signal. The current sensors are available in either an Average
or True RMS output version. The recommended torque to be
used on the terminal block connections is 5.93 in-lbs
(0.67 Nm). The aperture (hole) size of the current sensor is
3/4 in. (19 mm) and will accept a maximum cable diameter of
350 MCM (17.3 mm).
Fig. 8. Wiring example
C
U
R
L
US
C
US
R
U
L
M25298
M25299
C
US
R
U
L
M23934
BUILDING AUTOMATION
SYSTEM
COMMON
+ 4-20 MA SIGNAL INPUT
GND (SHIELD)
+
–
+12-30 VDC
DC POWER SUPPLY
+
–