Product Overview

System 350 A350A/B Electronic Temperature Control Product/Technical Bulletin 7
 Various A99B Series Temperature Sensors
and mounting hardware are available for use
with A350 Series Controls. See Tables 3 and
6. The sensor must be connected to the COM
and SEN terminals on the four-position
terminal strip located at the top left of the
printed circuit board (Refer to Figures 2, 4,
and 5.). The sensors are not polarity sensitive.
 The sensor must be mounted so that it can
accurately sense the temperature of the
controlled medium.
Table 3: Sensors Included With A350A/B
Controls
Control Sensor Included
Sensor lead length is 9-3/4 in. (0.25 m)
A350AA-1C
A99BB-25C; Range: -40 to 212°F
(-40 to 100°C)
A350AA-2C
A99BC-25C; Range: -40 to 248°F
(-40 to 120°C)
A350AA-3C
A99BB-25C; Range: -40 to 212°F
(-40 to 100°C)
A350AB-1C
No Sensor Included
A350AB-2C
No Sensor Included
A350AB-5C
No Sensor Included
A350BA-1C
A99BB-25C; Range: -40 to 212°F
(-40 to 100°C)
A350BA-2C
A99BC-25; Range: -40 to 248°F
(-40 to 120°C)
A350BB-1C
No Sensor Included
 For more information regarding sensor options
and installation, refer to the A99B Series
Temperature Sensors Product/Technical Bulletin
(LIT-125186).
A350A/B
S350A
S350A
D350S350A
Load Load Load Load
Y350R
120 VAC
Shield (Connect
to COM on A350)
Sensor
Figure 5: System 350 Powered by Y350R Module