D
imensions
Mounting Slots
for No. 6 Screws
9 3/4 (248)
I
nstallation and Wiring
The A350A/B Temperature Control is housed in a
compact NEMA 1 plastic enclosure designed for
standard 35 mm DIN rail mounting. The A350A/B is not
position sensitive but should be mounted for convenient
wiring and adjustment. Four key-slot mounting holes on
the back of the control case are provided for surface
mounting. Add-on modules must plug into the right side
of the A350A/B control.
Note: When mounting the System 350 modules to rigid
conduit, attach the hub to the conduit before
securing the hub to the control enclosure.
!
WARNING: Risk of Electrical Shock.
Disconnect power supply before
wiring connections are made to
avoid electrical shock or damage
to equipment.
•
All wiring must conform to the National Electrical
Code and/or local regulations.
Note:
For maximum electrical rating of control, see
label inside the control cover or Specifications
section. Use copper conductors only.
4
System 350 A350A/B Electronic Temperature Control Product/Technical Bulletin
3/16 (4)
1/2 (13)
2 15/16
(75)
1 9/16
(40)
7/16
(11)
Sensor
1/4 (6)
Figure 3: A350A/B Control Dimensions, in. (mm)
5 (127)
DIN Rail
Mount
3 (76)
2 3/8
(61)
•
Consult the typical wiring diagrams (Figures 4 and 5)
for proper wiring and terminal designations.
L
24
1
VAC
2
24V
COM
VDC
SEN
L
1
2
Figure 4: Typical Wiring Diagram for A350A/B
Powered by an External 10 VA Transformer
4 (102)
2 3/8
(61)
1 3/16
(31)
Conduit
7/8
(22)
Note: If sensor is mounted less than 50 ft
(15.2 m) from the A350A/B,
shielded cable is not required.
A350A/B
S350A
Load
Load
Hole
7/8
(22)
Sensor
D350
Need help?
Do you have a question about the System 350 A350A and is the answer not in the manual?
Questions and answers