Specifications

Curtis PMC 1223/33, 1225/35, 1227/37 Manual
6
2 — INSTALLATION & WIRING: 1223/33 Controllers
1223/33 CONTROLLERS
1223/33 Installation
The controller can be oriented in any position, but the location should be
carefully chosen to keep the controller clean and dry. If a clean, dry mounting
location cannot be found, a cover must be used to shield the controller from
water and contaminants.
The outline and mounting hole dimensions for the 1223/33 controllers are
shown in Figure 2. The controller can be mounted by the top of the heatsink or
by means of the four mounting holes at the corners of the circuit board.
Fig. 2 Mounting
dimensions, Curtis PMC
1223/33 controllers.
Mounting the controller via the tapped holes in the heatsink is the preferred
method and requires M4 screws. If the controller is mounted via the circuit
board, care should be taken to ensure that no conductive hardware overlaps the
copper planes at the power connect end of the board. Additionally, at least 6 mm
(1/4") clearance should be provided below the bottom of the circuit board to
prevent shorts to any of the thru-hole connections.
In either case the heatsink should be attached to at least a 100 × 125 × 3 mm
(4" × 5" × 1/8") aluminum plate or its equivalent to obtain the rated currents.
B+
B-
M2
M1
42
(1.65)
M4 tapped,
4 plcs
146 (5.75)
138 (5.45)
104
(4.10)
96.5
(3.80)
25.4
(1.00)
25.1
(0.99)
3.8 (0.15) dia.,
4 plcs
Dimensions in millimeters and (inches)
39
(1.53)
17.1
(0.67)