diff --git a/homeassistant/components/sensor/nut.py b/homeassistant/components/sensor/nut.py
index 19362c67d8c..2608be8ded9 100644
--- a/homeassistant/components/sensor/nut.py
+++ b/homeassistant/components/sensor/nut.py
@@ -46,13 +46,13 @@ SENSOR_TYPES = {
     'ups.load': ['Load', '%', 'mdi:gauge'],
     'ups.load.high': ['Overload Setting', '%', 'mdi:gauge'],
     'ups.id': ['System identifier', '', 'mdi:information-outline'],
-    'ups.delay.start': ['Load Restart Delay', 'sec', 'mdi:timer'],
-    'ups.delay.reboot': ['UPS Reboot Delay', 'sec', 'mdi:timer'],
-    'ups.delay.shutdown': ['UPS Shutdown Delay', 'sec', 'mdi:timer'],
-    'ups.timer.start': ['Load Start Timer', 'sec', 'mdi:timer'],
-    'ups.timer.reboot': ['Load Reboot Timer', 'sec', 'mdi:timer'],
-    'ups.timer.shutdown': ['Load Shutdown Timer', 'sec', 'mdi:timer'],
-    'ups.test.interval': ['Self-Test Interval', 'sec', 'mdi:timer'],
+    'ups.delay.start': ['Load Restart Delay', 's', 'mdi:timer'],
+    'ups.delay.reboot': ['UPS Reboot Delay', 's', 'mdi:timer'],
+    'ups.delay.shutdown': ['UPS Shutdown Delay', 's', 'mdi:timer'],
+    'ups.timer.start': ['Load Start Timer', 's', 'mdi:timer'],
+    'ups.timer.reboot': ['Load Reboot Timer', 's', 'mdi:timer'],
+    'ups.timer.shutdown': ['Load Shutdown Timer', 's', 'mdi:timer'],
+    'ups.test.interval': ['Self-Test Interval', 's', 'mdi:timer'],
     'ups.test.result': ['Self-Test Result', '', 'mdi:information-outline'],
     'ups.test.date': ['Self-Test Date', '', 'mdi:calendar'],
     'ups.display.language': ['Language', '', 'mdi:information-outline'],
@@ -84,10 +84,10 @@ SENSOR_TYPES = {
     'battery.current.total': ['Total Battery Current', 'A', 'mdi:flash'],
     'battery.temperature':
         ['Battery Temperature', TEMP_CELSIUS, 'mdi:thermometer'],
-    'battery.runtime': ['Battery Runtime', 'sec', 'mdi:timer'],
-    'battery.runtime.low': ['Low Battery Runtime', 'sec', 'mdi:timer'],
+    'battery.runtime': ['Battery Runtime', 's', 'mdi:timer'],
+    'battery.runtime.low': ['Low Battery Runtime', 's', 'mdi:timer'],
     'battery.runtime.restart':
-        ['Minimum Battery Runtime to Start', 'sec', 'mdi:timer'],
+        ['Minimum Battery Runtime to Start', 's', 'mdi:timer'],
     'battery.alarm.threshold':
         ['Battery Alarm Threshold', '', 'mdi:information-outline'],
     'battery.date': ['Battery Date', '', 'mdi:calendar'],