Safety Switches for Automation – The Standard Range
Welcome to our range of Safety Switches for Automation; a range of products for controlling and monitoring guards opening and locking in three different applications – Heavy Duty, Medium Duty and Compact Locations.
Heavy Duty Guard Locks


Left Handed Single Action Escape Release Handle
✅ Robust Design
✅ Integrated Restart Prevention
✅ Integrated Escape Release
✅ Guard Locking up to Cat. 4 PLe
✅ Operator Controls with Emergency Stop
✅ Pre-wired M23 connector
✅ Easy to Install with just two fixings

Right Handed Single Action Escape Release Handle
✅ Robust Design
✅ Integrated Restart Prevention
✅ Integrated Escape Release
✅ Guard Locking up to Cat. 4 PLe
✅ Operator Controls with Emergency Stop
✅ Pre-wired M23 connector
✅ Easy to Install with just two fixings
Key | CLK-SUSS
This product requires one key (sold separately)
Cable | CABLE-5M-F2
5 metre (16.4ft) cable to suit M23 19-pin connector
Dual independent normally closed safety contacts;
✅ Applications up to Cat. 4, PLe
Safety on Guard Locking
✅ powering solenoid opens safety contacts
✅ local indication of guard lock status through yellow LED
✅ signalled non-safe monitoring of lock status
✅ Opening of guard only permissible through extraction of key
✅ Removal of restart prevention key monitored
✅ Whilst key is removed, safety contacts cannot be closed
Key Operated Switch

Key Operated Switch - Why?
🛑 Requesting machine stop at end of a run-down cycle
🖥️ Enabling teach mode activation
⛔ Prevent unexpected restart when key removed and taken into a safeguarded space
Why Fortress?
Robust metal alloy enclosed key switch with pre-wired M12 connection and mounting with just two fixings for easily installation. Suitable for applications up to Cat. 4 PLe, this product is designed for indoor or outdoor IP67 installations. Dust cover lock protection ensures reliable operation .

Key | CLK-SUSS
This product requires one key to operate
🔌 CABLE-5M-D7
5 metre cable M12 connection to free wires.
BK0 (key switch)
2 (with lock protection)
T03543 (wiring reference)
D700 (10-pin M12 connector)
MPB1 (installation with just two fixings)
Open safety contacts on Key Removal
"Where can this key be used?"
⭕ Click on the image to view trapped key solutions ⭕
Networked Heavy Duty Interlocks with PROFIsafe & CIP Safety


Left Handed Single Action Escape Release Handle
✅ Robust Design
✅ PROFINET with PROFIsafe Connection
✅ Integrated Restart Prevention
✅ Integrated Escape Release
✅ Guard Locking up to Cat. 4 PLe
✅ Operator Controls with Emergency Stop
✅ Easy to Install with just two fixings

Right Handed Single Action Escape Release Handle
✅ Robust Design
✅ PROFINET with PROFIsafe Connection
✅ Integrated Restart Prevention
✅ Integrated Escape Release
✅ Guard Locking up to Cat. 4 PLe
✅ Operator Controls with Emergency Stop
✅ Easy to Install with just two fixings
Key | CLK-SUSS
This product requires one key (sold separately)
Cabling from a logic controller to an interlock;
Cable Set | CABLE-10M-PF10-H
(includes M12 5-pin to free ends, and D-coded 4-pin to RJ45)
Cascading cabling between interlocks;
Cable Set | CABLE-10M-PF10-D
(includes 1x M12 5-pin dual ended and 1x dual ended D-coded 4-pin)
Dual independent normally closed safety contacts;
✅ Applications up to Cat. 4, PLe
Safety on Guard Locking
✅ powering solenoid opens safety contacts
✅ local indication of guard lock status through yellow LED
✅ signalled non-safe monitoring of lock status
✅ Opening of guard only permissible through extraction of key
✅ Removal of restart prevention key monitored
✅ Whilst key is removed, safety contacts cannot be closed
PROFINET / PROFIsafe enabled for direct communication to logic controller.
✅ Up to three dual channel safety components
✅ Integrate additional I/O with no additional cabling
✅ Connect external I/O with a unique configured design with a Fortress specialist
What External I/O? Do you have a light curtain, enabling switch, indicator light or sensor you wish to connect over PROFINET / PROFIsafe? Our specialists are here to help.

PF10 Connector Set
2x M12 D-Coded 4-pin Data + 2x M12 A-Coded 5-pin Power (M/F)
Installation of networked devices is quick and simple with plug and play connectors


Left Handed Single Action Escape Release Handle
✅ Robust Design
✅ EtherNet/IP with CIP Safety Connection
✅ Integrated Restart Prevention
✅ Integrated Escape Release
✅ Guard Locking up to Cat. 4 PLe
✅ Operator Controls with Emergency Stop
✅ Easy to Install with just two fixings

Right Handed Single Action Escape Release Handle
✅ Robust Design
✅ EtherNet/IP with CIP Safety Connection
✅ Integrated Restart Prevention
✅ Integrated Escape Release
✅ Guard Locking up to Cat. 4 PLe
✅ Operator Controls with Emergency Stop
✅ Easy to Install with just two fixings
Key | CLK-SUSS
This product requires one key (sold separately)
Cabling from a logic controller to an interlock;
Cable Set | CABLE-10M-PF10-H
(includes M12 5-pin to free ends, and D-coded 4-pin to RJ45)
Cascading cabling between interlocks;
Cable Set | CABLE-10M-PF10-D
(includes 1x M12 5-pin dual ended and 1x dual ended D-coded 4-pin)
Dual independent normally closed safety contacts;
✅ Applications up to Cat. 4, PLe
Safety on Guard Locking
✅ powering solenoid opens safety contacts
✅ local indication of guard lock status through yellow LED
✅ signalled non-safe monitoring of lock status
✅ Opening of guard only permissible through extraction of key
✅ Removal of restart prevention key monitored
✅ Whilst key is removed, safety contacts cannot be closed
EtherNet/IP & CIP Safety enabled for direct communication to logic controller.
✅ Up to three dual channel safety components
✅ Integrate additional I/O with no additional cabling
✅ Connect external I/O with a unique configured design with a Fortress specialist
What External I/O? Do you have a light curtain, enabling switch, indicator light or sensor you wish to connect over EtherNet/IP & CIP Safety? Our specialists are here to help.

PF10 Connector Set
2x M12 D-Coded 4-pin Data + 2x M12 A-Coded 5-pin Power (M/F)
Installation of networked devices is quick and simple with plug and play connectors