Fixes: #5564 - Raise validation error if a PowerPortTemplate's draw exceeds maximum

netbox/dcim/models/device_component_templates.py

@@ -164,6 +164,15 @@ class PowerPortTemplate(ComponentTemplateModel):
             allocated_draw=self.allocated_draw
         )
 
+    def clean(self):
+        super().clean()
+
+        if self.maximum_draw is not None and self.allocated_draw is not None:
+            if self.allocated_draw > self.maximum_draw:
+                raise ValidationError({
+                    'allocated_draw': f"Allocated draw cannot exceed the maximum draw ({self.maximum_draw}W)."
+                })
+
 
 class PowerOutletTemplate(ComponentTemplateModel):
     """