2
A419ABG-3 Electronic Temperature Control Installation Instructions
Dimensions
Sensor
Wire Lead
6.6 ft
(2 m)
1/2
(13)
2-15/16
(75)
1-9/16
(40)
7/16
(11)
DIN
Rail
2-3/8
2-3/8
(61)
(61)
5
(127)
4
(102)
9/64
MENU
(3.7)
Sensor
1/4
(6)
(50)
2
6 ft (1.8 m)
Electrical Cords with
Male and Female Plugs
Figure 1: Dimensions, in. (mm)
Mounting
An A419 control has a standard high-impact plastic
NEMA 1 enclosure. The A419 control is not position
sensitive but should be mounted for convenient wiring
and adjustment.
Wiring
!
WARNING: Risk of Electrical Shock
Disconnect each of multiple power supplies before
making electrical connections. More than one
disconnect may be required to completely
de-energize equipment. Contact with components
carrying hazardous voltage can cause electrical
shock and may result in severe personal injury or
death.
All wiring must conform to the National Electrical Code
and local regulations.
Observe the following guidelines and refer to Figure 2
and Table 1 when wiring the sensor to the
A419 control.
•
Wire insulation rating must be 90°C, minimum.
•
Temperature sensor signals may be affected by
electrical interference. When extending sensor
cable beyond 50 ft (15.2 m), use a twisted-pair,
shielded cable to reduce electrical interference.
•
A99 temperature sensors are not polarity
sensitive. Wire the leads to (+) SEN and (-) COM
on the sensor terminal block (TB3). See Figure 2.
Keep the leads between the control and sensor as
short as possible/practical in your application. The
additional resistance in long sensor leads creates
error between the actual temperature and the
displayed temperature. Refer to Table 1 when
extending sensor leads.
Table 1: Maximum Recommended Sensor Cable
Lengths and Wire Sizes
Wire
Gauge
Maximum Sensor Cable Length*
feet (meters)
16 AWG
500 (150)
18 AWG
300 (100)
20 AWG
200 (60)
22 AWG
125 (40)
*
At the listed maximum cable lengths, there is less
than 1F
°
(0.6C
°
) error in the actual temperature vs.
displayed temperature.
AC CO
M
12
0
C
NO
A419ABG-3
120 VAC
Neutral
TB2
TB1
Load
120 VAC Application
A99
Sensor
Cable
Shield
(if used)
TB3
(+)
(+)
(–)
(Optional)
Binary
Input
Switch
BIN
SEN
COM
Not
Used
Not
Used
Figure 2: Typical 120 VAC Application Wiring
