diff --git a/central_frontend/src/api/RelayApi.ts b/central_frontend/src/api/RelayApi.ts
index 7296bef..7d6a8db 100644
--- a/central_frontend/src/api/RelayApi.ts
+++ b/central_frontend/src/api/RelayApi.ts
@@ -39,4 +39,14 @@ export class RelayApi {
       jsonData: relay,
     });
   }
+
+  /**
+   * Delete a relay configuration
+   */
+  static async Delete(relay: DeviceRelay): Promise<void> {
+    await APIClient.exec({
+      method: "DELETE",
+      uri: `/relay/${relay.id}`,
+    });
+  }
 }
diff --git a/central_frontend/src/dialogs/EditDeviceRelaysDialog.tsx b/central_frontend/src/dialogs/EditDeviceRelaysDialog.tsx
index ca9a161..e9d6479 100644
--- a/central_frontend/src/dialogs/EditDeviceRelaysDialog.tsx
+++ b/central_frontend/src/dialogs/EditDeviceRelaysDialog.tsx
@@ -4,9 +4,9 @@ import {
   DialogActions,
   DialogContent,
   DialogTitle,
-  Grid,
   Typography,
 } from "@mui/material";
+import Grid from "@mui/material/Grid2";
 import { TimePicker } from "@mui/x-date-pickers";
 import React from "react";
 import { Device, DeviceRelay } from "../api/DeviceApi";
@@ -81,7 +81,7 @@ export function EditDeviceRelaysDialog(p: {
       <DialogContent>
         <DialogFormTitle>General info</DialogFormTitle>
         <Grid container spacing={2}>
-          <Grid item xs={6}>
+          <Grid size={{ xs: 6 }}>
             <TextInput
               editable
               label="Relay name"
@@ -97,7 +97,7 @@ export function EditDeviceRelaysDialog(p: {
               size={ServerApi.Config.constraints.dev_name_len}
             />
           </Grid>
-          <Grid item xs={6}>
+          <Grid size={{ xs: 6 }}>
             <CheckboxInput
               editable
               label="Enable relay"
@@ -112,7 +112,7 @@ export function EditDeviceRelaysDialog(p: {
               }
             />
           </Grid>
-          <Grid item xs={6}>
+          <Grid size={{ xs: 6 }}>
             <TextInput
               editable
               label="Priority"
@@ -130,7 +130,7 @@ export function EditDeviceRelaysDialog(p: {
               helperText="Relay priority when selecting relays to turn on. 0 = lowest priority"
             />
           </Grid>
-          <Grid item xs={6}>
+          <Grid size={{ xs: 6 }}>
             <TextInput
               editable
               label="Consumption"
@@ -148,7 +148,7 @@ export function EditDeviceRelaysDialog(p: {
               helperText="Estimated consumption of device powered by relay"
             />
           </Grid>
-          <Grid item xs={6}>
+          <Grid size={{ xs: 6 }}>
             <TextInput
               editable
               label="Minimal uptime"
@@ -166,7 +166,7 @@ export function EditDeviceRelaysDialog(p: {
               helperText="Minimal time this relay shall be left on before it can be turned off (in seconds)"
             />
           </Grid>
-          <Grid item xs={6}>
+          <Grid size={{ xs: 6 }}>
             <TextInput
               editable
               label="Minimal downtime"
@@ -188,7 +188,7 @@ export function EditDeviceRelaysDialog(p: {
 
         <DialogFormTitle>Daily runtime</DialogFormTitle>
         <Grid container spacing={2}>
-          <Grid item xs={6}>
+          <Grid size={{ xs: 6 }}>
             <CheckboxInput
               editable
               label="Enable minimal runtime"
@@ -208,7 +208,7 @@ export function EditDeviceRelaysDialog(p: {
 
           {!!relay.daily_runtime && (
             <>
-              <Grid item xs={6}>
+              <Grid size={{ xs: 6 }}>
                 <TextInput
                   editable
                   label="Minimal daily runtime"
@@ -231,7 +231,7 @@ export function EditDeviceRelaysDialog(p: {
                   helperText="Minimum time, in seconds, that this relay should run each day"
                 />
               </Grid>
-              <Grid item xs={6}>
+              <Grid size={{ xs: 6 }}>
                 <TimePicker
                   label="Reset time"
                   value={timeOfDay(relay.daily_runtime!.reset_time)}
@@ -248,7 +248,7 @@ export function EditDeviceRelaysDialog(p: {
                   }
                 />
               </Grid>
-              <Grid item xs={6}>
+              <Grid size={{ xs: 6 }}>
                 <MultipleSelectInput
                   label="Catchup hours"
                   helperText="The hours during which the relay should be turned on to reach expected runtime"
@@ -278,7 +278,7 @@ export function EditDeviceRelaysDialog(p: {
 
         <DialogFormTitle>Constraints</DialogFormTitle>
         <Grid container spacing={2}>
-          <Grid item xs={6}>
+          <Grid size={{ xs: 6 }}>
             <SelectMultipleRelaysInput
               label="Required relays"
               exclude={[relay.id]}
@@ -294,7 +294,7 @@ export function EditDeviceRelaysDialog(p: {
               helperText="Relays that must be already up for this relay to be started"
             />
           </Grid>
-          <Grid item xs={6}>
+          <Grid size={{ xs: 6 }}>
             <SelectMultipleRelaysInput
               label="Conflicting relays"
               exclude={[relay.id]}
diff --git a/central_frontend/src/routes/DeviceRoute/DeviceRelays.tsx b/central_frontend/src/routes/DeviceRoute/DeviceRelays.tsx
index 8d39676..9c2de14 100644
--- a/central_frontend/src/routes/DeviceRoute/DeviceRelays.tsx
+++ b/central_frontend/src/routes/DeviceRoute/DeviceRelays.tsx
@@ -1,14 +1,32 @@
 import AddIcon from "@mui/icons-material/Add";
-import { IconButton, Tooltip } from "@mui/material";
+import DeleteIcon from "@mui/icons-material/Delete";
+import EditIcon from "@mui/icons-material/Edit";
+import {
+  IconButton,
+  ListItem,
+  ListItemText,
+  Tooltip,
+  Typography,
+} from "@mui/material";
 import React from "react";
 import { Device, DeviceRelay } from "../../api/DeviceApi";
-import { DeviceRouteCard } from "./DeviceRouteCard";
 import { EditDeviceRelaysDialog } from "../../dialogs/EditDeviceRelaysDialog";
+import { DeviceRouteCard } from "./DeviceRouteCard";
+import { useConfirm } from "../../hooks/context_providers/ConfirmDialogProvider";
+import { useLoadingMessage } from "../../hooks/context_providers/LoadingMessageProvider";
+import { RelayApi } from "../../api/RelayApi";
+import { useSnackbar } from "../../hooks/context_providers/SnackbarProvider";
+import { useAlert } from "../../hooks/context_providers/AlertDialogProvider";
 
 export function DeviceRelays(p: {
   device: Device;
   onReload: () => void;
 }): React.ReactElement {
+  const confirm = useConfirm();
+  const loadingMessage = useLoadingMessage();
+  const snackbar = useSnackbar();
+  const alert = useAlert();
+
   const [dialogOpen, setDialogOpen] = React.useState(false);
   const [currRelay, setCurrRelay] = React.useState<DeviceRelay | undefined>();
 
@@ -17,6 +35,25 @@ export function DeviceRelays(p: {
     setCurrRelay(undefined);
   };
 
+  const deleteRelay = async (r: DeviceRelay) => {
+    if (
+      !(await confirm("Do you really want to delete this relay configuration?"))
+    )
+      return;
+
+    try {
+      await RelayApi.Delete(r);
+
+      p.onReload();
+      snackbar("The relay configuration was successfully deleted!");
+    } catch (e) {
+      console.error("Failed to delete relay!", e);
+      alert(`Failed to delete device relay configuration! ${e}`);
+    } finally {
+      loadingMessage.hide();
+    }
+  };
+
   return (
     <>
       {dialogOpen && (
@@ -43,7 +80,39 @@ export function DeviceRelays(p: {
           </Tooltip>
         }
       >
-        TODO : relays list ({p.device.relays.length}) relays now)
+        {p.device.relays.length === 0 ? (
+          <Typography style={{ textAlign: "center" }}>
+            No relay configured yet.
+          </Typography>
+        ) : (
+          <></>
+        )}
+
+        {p.device.relays.map((r, i) => (
+          <ListItem
+            alignItems="flex-start"
+            key={r.id}
+            secondaryAction={
+              <>
+                <Tooltip title="Edit the relay configuration">
+                  <IconButton>
+                    <EditIcon />
+                  </IconButton>
+                </Tooltip>
+
+                {i === p.device.relays.length - 1 && (
+                  <Tooltip title="Delete the relay configuration">
+                    <IconButton onClick={() => deleteRelay(r)}>
+                      <DeleteIcon />
+                    </IconButton>
+                  </Tooltip>
+                )}
+              </>
+            }
+          >
+            <ListItemText primary={r.name} secondary={"TODO: status"} />
+          </ListItem>
+        ))}
       </DeviceRouteCard>
     </>
   );
diff --git a/central_frontend/src/routes/DeviceRoute/DeviceRoute.tsx b/central_frontend/src/routes/DeviceRoute/DeviceRoute.tsx
index 50e0368..3e9ca9a 100644
--- a/central_frontend/src/routes/DeviceRoute/DeviceRoute.tsx
+++ b/central_frontend/src/routes/DeviceRoute/DeviceRoute.tsx
@@ -1,5 +1,5 @@
 import DeleteIcon from "@mui/icons-material/Delete";
-import { Grid, IconButton, Tooltip } from "@mui/material";
+import { IconButton, Tooltip } from "@mui/material";
 import React from "react";
 import { useNavigate, useParams } from "react-router-dom";
 import { Device, DeviceApi } from "../../api/DeviceApi";
@@ -11,6 +11,7 @@ import { AsyncWidget } from "../../widgets/AsyncWidget";
 import { SolarEnergyRouteContainer } from "../../widgets/SolarEnergyRouteContainer";
 import { GeneralDeviceInfo } from "./GeneralDeviceInfo";
 import { DeviceRelays } from "./DeviceRelays";
+import Grid from "@mui/material/Grid2";
 
 export function DeviceRoute(): React.ReactElement {
   const { id } = useParams();
@@ -81,10 +82,10 @@ function DeviceRouteInner(p: {
       }
     >
       <Grid container spacing={2}>
-        <Grid item xs={12} md={6}>
+        <Grid size={{ xs: 12, md: 6 }}>
           <GeneralDeviceInfo {...p} />
         </Grid>
-        <Grid item xs={12} md={6}>
+        <Grid size={{ xs: 12, md: 6 }}>
           <DeviceRelays {...p} />
         </Grid>
       </Grid>
diff --git a/central_frontend/src/routes/LoginRoute.tsx b/central_frontend/src/routes/LoginRoute.tsx
index db20f04..6e1d582 100644
--- a/central_frontend/src/routes/LoginRoute.tsx
+++ b/central_frontend/src/routes/LoginRoute.tsx
@@ -4,7 +4,6 @@ import Avatar from "@mui/material/Avatar";
 import Box from "@mui/material/Box";
 import Button from "@mui/material/Button";
 import CssBaseline from "@mui/material/CssBaseline";
-import Grid from "@mui/material/Grid";
 import Link from "@mui/material/Link";
 import Paper from "@mui/material/Paper";
 import TextField from "@mui/material/TextField";
@@ -12,6 +11,7 @@ import Typography from "@mui/material/Typography";
 import * as React from "react";
 import { useLoadingMessage } from "../hooks/context_providers/LoadingMessageProvider";
 import { AuthApi } from "../api/AuthApi";
+import Grid from "@mui/material/Grid2";
 
 function Copyright(props: any) {
   return (
@@ -60,10 +60,7 @@ export function LoginRoute() {
     <Grid container component="main" sx={{ height: "100vh" }}>
       <CssBaseline />
       <Grid
-        item
-        xs={false}
-        sm={4}
-        md={7}
+        size={{ sm: 4, md: 7, xs: false }}
         sx={{
           backgroundImage: 'url("/sun.jpg")',
           backgroundColor: (t) =>
@@ -74,7 +71,12 @@ export function LoginRoute() {
           backgroundPosition: "left",
         }}
       />
-      <Grid item xs={12} sm={8} md={5} component={Paper} elevation={6} square>
+      <Grid
+        size={{ xs: 12, sm: 8, md: 5 }}
+        component={Paper}
+        elevation={6}
+        square
+      >
         <Box
           sx={{
             my: 8,