diff --git a/charger/cfos.go b/charger/cfos.go
index 12f6a5fc0..0337d2d47 100644
--- a/charger/cfos.go
+++ b/charger/cfos.go
@@ -1,6 +1,7 @@
 package charger
 
 import (
+	"encoding/binary"
 	"errors"
 
 	"github.com/evcc-io/evcc/api"
@@ -10,10 +11,12 @@ import (
 )
 
 const (
-	cfosRegStatus     = 8092 // Holding
-	cfosRegMaxCurrent = 8093 // Holding
-	cfosRegEnable     = 8094 // Holding
-	cfosRegLastRfid   = 8096 // Holding
+	cfosRegRelaySelect  = 8087 // Holding
+	cfosRegStatus       = 8092 // Holding
+	cfosRegMaxCurrent   = 8093 // Holding
+	cfosRegEnable       = 8094 // Holding
+	cfosRegLastRfid     = 8096 // Holding
+	cfosRegSolarEnabled = 8113 // Holding
 )
 
 // CfosPowerBrain is an charger implementation for cFos PowerBrain wallboxes.
@@ -27,6 +30,8 @@ func init() {
 	registry.Add("cfos", NewCfosPowerBrainFromConfig)
 }
 
+// go:generate go run ../cmd/tools/decorate.go -f decorateCfos -b "*CfosPowerBrain" -r api.Charger -t "api.PhaseSwitcher,Phases1p3p,func(int) error"
+
 // NewCfosPowerBrainFromConfig creates a cFos charger from generic config
 func NewCfosPowerBrainFromConfig(other map[string]interface{}) (api.Charger, error) {
 	cc := modbus.TcpSettings{
@@ -41,7 +46,7 @@ func NewCfosPowerBrainFromConfig(other map[string]interface{}) (api.Charger, err
 }
 
 // NewCfosPowerBrain creates a cFos charger
-func NewCfosPowerBrain(uri string, id uint8) (*CfosPowerBrain, error) {
+func NewCfosPowerBrain(uri string, id uint8) (api.Charger, error) {
 	uri = util.DefaultPort(uri, 4701)
 
 	conn, err := modbus.NewConnection(uri, "", "", 0, modbus.Tcp, id)
@@ -64,7 +69,15 @@ func NewCfosPowerBrain(uri string, id uint8) (*CfosPowerBrain, error) {
 		conn: conn,
 	}
 
-	return wb, nil
+	// decorate phases
+	var phases1p3p func(int) error
+
+	b, err := wb.conn.ReadHoldingRegisters(cfosRegSolarEnabled, 1)
+	if err == nil && binary.BigEndian.Uint16(b) == 256 {
+		phases1p3p = wb.phases1p3p
+	}
+
+	return decorateCfos(wb, phases1p3p), nil
 }
 
 // Status implements the api.Charger interface
@@ -127,6 +140,15 @@ func (wb *CfosPowerBrain) MaxCurrentMillis(current float64) error {
 	return err
 }
 
+// phases1p3p implements the api.PhaseSwitcher interface
+func (wb *CfosPowerBrain) phases1p3p(phases int) error {
+	if phases == 3 {
+		phases = 0
+	}
+	_, err := wb.conn.WriteSingleRegister(cfosRegRelaySelect, uint16(phases))
+	return err
+}
+
 var _ api.Identifier = (*CfosPowerBrain)(nil)
 
 // Identify implements the api.Identifier interface
diff --git a/charger/cfos_decorators.go b/charger/cfos_decorators.go
new file mode 100644
index 000000000..84b9cadcf
--- /dev/null
+++ b/charger/cfos_decorators.go
@@ -0,0 +1,35 @@
+package charger
+
+// Code generated by github.com/evcc-io/evcc/cmd/tools/decorate.go. DO NOT EDIT.
+
+import (
+	"github.com/evcc-io/evcc/api"
+)
+
+func decorateCfos(base *CfosPowerBrain, phaseSwitcher func(int) error) api.Charger {
+	switch {
+	case phaseSwitcher == nil:
+		return base
+
+	case phaseSwitcher != nil:
+		return &struct {
+			*CfosPowerBrain
+			api.PhaseSwitcher
+		}{
+			CfosPowerBrain: base,
+			PhaseSwitcher: &decorateCfosPhaseSwitcherImpl{
+				phaseSwitcher: phaseSwitcher,
+			},
+		}
+	}
+
+	return nil
+}
+
+type decorateCfosPhaseSwitcherImpl struct {
+	phaseSwitcher func(int) error
+}
+
+func (impl *decorateCfosPhaseSwitcherImpl) Phases1p3p(phases int) error {
+	return impl.phaseSwitcher(phases)
+}
diff --git a/templates/definition/charger/cfos.yaml b/templates/definition/charger/cfos.yaml
index 341402104..6fa06090b 100644
--- a/templates/definition/charger/cfos.yaml
+++ b/templates/definition/charger/cfos.yaml
@@ -2,12 +2,16 @@ template: cfos
 products:
   - brand: cFos
     description:
-      generic: PowerBrain
-capabilities: ["mA", "rfid"]
+      generic: Power Brain, Power Brain Solar
+capabilities: ["mA", "rfid", "1p3p"]
 requirements:
   description:
-    de: Der Zähler- falls vorhanden- muss separat als Ladezähler konfiguriert werden.
-    en: The meter- if present- must be configured separately as charge meter.
+    de: |
+      Der Zähler- falls vorhanden- muss separat als Ladezähler konfiguriert werden.
+      Phasenumschaltung bietet nur die Solar-Variante und muss vom Anwender freigeschaltet werden.
+    en: |
+      The meter- if present- must be configured separately as charge meter.
+      Phase switching is only available with the Solar variant and must be enabled by the user.
   evcc: ["sponsorship"]
 params:
   - name: host