If you are using the CDM9 950 to fire an SCR power regulator:
The manual specifies a panel cutout of 92x92 mm (1/4 DIN standard). However, the depth behind the panel requires 120 mm clearance for wiring and cooling. Use the supplied mounting bracket clips—do not over-torque them, as this warps the front bezel and compromises the IP54 front seal. crawford cdm9 950 installation manual