diff --git a/homeassistant/components/nobo_hub/quality_scale.yaml b/homeassistant/components/nobo_hub/quality_scale.yaml
index 9869b9c445e15c..a1ff9710ad567a 100644
--- a/homeassistant/components/nobo_hub/quality_scale.yaml
+++ b/homeassistant/components/nobo_hub/quality_scale.yaml
@@ -58,11 +58,7 @@ rules:
   docs-use-cases: todo
   dynamic-devices: todo
   entity-category: todo
-  entity-device-class:
-    status: todo
-    comment: >
-      Custom device class on global override select being dropped in
-      PR #170135.
+  entity-device-class: done
   entity-disabled-by-default: todo
   entity-translations: todo
   exception-translations: done
diff --git a/homeassistant/components/nobo_hub/select.py b/homeassistant/components/nobo_hub/select.py
index 9b0be2cac235ab..57e51842470624 100644
--- a/homeassistant/components/nobo_hub/select.py
+++ b/homeassistant/components/nobo_hub/select.py
@@ -51,7 +51,6 @@ class NoboGlobalSelector(NoboBaseEntity, SelectEntity):
     """Global override selector for Nobø Ecohub."""
 
     _attr_translation_key = "global_override"
-    _attr_device_class = "nobo_hub__override"
     _modes = {
         nobo.API.OVERRIDE_MODE_NORMAL: "none",
         nobo.API.OVERRIDE_MODE_AWAY: "away",
diff --git a/tests/components/nobo_hub/snapshots/test_select.ambr b/tests/components/nobo_hub/snapshots/test_select.ambr
index c7bb3d91de54c8..1b94f2698580a9 100644
--- a/tests/components/nobo_hub/snapshots/test_select.ambr
+++ b/tests/components/nobo_hub/snapshots/test_select.ambr
@@ -88,7 +88,7 @@
     'object_id_base': 'Global override',
     'options': dict({
     }),
-    'original_device_class': 'nobo_hub__override',
+    'original_device_class': None,
     'original_icon': None,
     'original_name': 'Global override',
     'platform': 'nobo_hub',
@@ -103,7 +103,6 @@
 # name: test_select_entities[select.my_eco_hub_global_override-state]
   StateSnapshot({
     'attributes': ReadOnlyDict({
-      'device_class': 'nobo_hub__override',
       'friendly_name': 'My Eco Hub Global override',
       'options': list([
         'none',