Fortress Safety Product
Supplementary safety devices to prevent unexpected start-up. Compatible with a wide range of interlocks on sliding (IBL-S) or hinged (IBL-H) guards, as well as light curtains (PBL). With no need for wiring, designed to be easily installed.

The Osbourn range is designed to offer protection against unexpected start-up. Compatible with a wide range of interlocks on sliding (IBL-S) or hinged (IBL-H) guards, as well as light curtains (PBL), Osbourn devices have integrated mounting plates for simple installation. With no need for wiring, our Osbourn solutions are designed to be easily installed on to systems that do not already provide a proactive inhibit function.
Main features of the Osbourn range
Interlock blocking devices work alongside existing interlocks or light curtains to add an additional level of protection and prevent unexpected start-up.
- Integrated mounting plates make installation simple and efficient
- Personnel keys as proactive inhibit functions
- Padlocks can be applied for additional personnel entering the area
- Stainless steel construction for use in a wide variety of environments
- Different orientations available to suit custom applications
Blocking Devices for Light Curtains
With photoelectric blocking devices (PBL) the rotation of a blocking plate interrupts the light curtain beam. PBL come in multiple configurations to support installation on different branded light curtain.
Blocking Devices for Guards
Interlock blocking devices (IBL) mechanically prevent hinged (IBL-H) or sliding guards (IBL-S) from closing. This prevents the interlock safety contacts from closing whilst operators are within the safeguarded space.
Other Products from Fortress Safety
Configurable Access & Control for Machine Guarding
Prebuilt Pushbutton Control Stations & Interlocks for Machine Automation
RFID Badge Access to Robot Cells - Fortress FRANK
Controlling Access To Robot Cells In Industrial Automation