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PICO-GUARD Fiber Optic Interlock Switches—Active/Passive

Active/Passive Switches provide a compact, non-contact, easy-to-install means of interlocking doors, guards, gates and covers.

Offers choice of U-shaped active/passive interlock switches for use with PICO-GUARD controller in personnel safety and equipment-protection applications
Provides compact, non-contact, easy-to-install interlocks switches for doors, guards, gates and covers
Allows fiber to enter and exit from one side of the guard only—ideal for removable doors and panels
Available in impact-resistant polycarbonate plastic, extreme-duty chemical-resistant stainless steel or heavy-duty impact-resistant zinc die-cast
Offers choice of integral or cut-to-length plastic fiber, depending on model
Allows use of multiple active/passive pairs per optical channel, depending on model and fiber length
Eliminates electrical wires and expensive electrical wiring for easy installation
Meets all requirements for Type 4 per IEC 61496-2 and Safety Category 4 per ISO 13849-1 applications
Designed to ATEX, FM and CSA approval for use in explosive environments
Rated IEC IP67
Installs easily with center mounting configuration
Offers optional attenuator for reducing excess gain in short-run applications
Offers splices for easily connecting two fiber sections

Separation and Max. Switching Distance	1 mm = ±10 mm 25 mm = ±11 mm 50 mm = ±12 mm
Mounting	SFI-D1, SFI-A1 and SFI-A1X models:holes for M4 (#10) screws (not included) SFI-D1HD, SFI-A1HD, SFI-D1ED and SFI-A1ED models:holes for M6 screws (not included)
Construction	SFI-D1HD and SFI-A1HD models:cast zinc housing, glass window, PTFE fluoropolymer-sheathed or polyethylene plastic fiber SFI-D1ED and SFI-A1ED models:316 stainless-steel housing, glass window, PTFE fluoropolymer-sheathed plastic fiber SFI-D, SFI-A1 and SFI-A1X models:polycarbonate plastic housing and window; acrylic lens
Environmental Rating	IEC IP67
Operating Conditions	Temperature:0° to +70° C Relative humidity:95%