Honeywell FF-SNC User Manual
MISUSE OF DOCUMENTATION
• The information presented in this product sheet (or catalogue) is for reference only. DO NOT USE this document as system
• Complete installation, operation and maintenance information is to be referenced for each product.
Failure to comply with these instructions could result in death or serious injury.
Safety Products for Machine Safeguarding -
© 2002 - 2004 Honeywell International Inc. All rights reserved.
Safety Non Contact Switch
Based on Magnetic Coded Technology
• Meets applicable parts of European
EN 1088 standard for Interlocking
devices associated with guards
• Permanent self-checking electronic
designed in compliance with the
requirements of the EN 954-1 standard
for Category 3 protective Devices
• Operating range:
5 mm - 7 mm / 0.20 in - 0.27 in ON,
8 mm - 12 mm / 0.32 in - 0.47 in OFF
• High resistance to environmental
• ABS and Stainless Steel housings
• Sensors sealing: IP 67
• Prewired or M8 plug termination
• Supply voltage: 24 Vdc/Vac ±15 %;
110 Vac ±15 % (only available for the
4-sensor control unit)
• Response time of the control unit:
• Manual or automatic restart
• LED status indicator
• 2-sensor control unit: (DIN rail mount
22,5 mm / 0.89 in width)
4-sensor control unit: (DIN rail mount
75 mm / 2.95 in width)
5-sensor extension module: (DIN rail
mount 22,5 / 0.89 in width)
Interlocking guard for non locked
mechanical screens offering free access
(machines must achieve instant stop):
• Machine door or casting "open/closed"
• Guard-in-place detection, gate/access
• Control of mechanical screens used in
addition to a safety light curtain
• Food & Beverage, Packaging, Machine
Tool, Automotive and Textile.
The FF-SNC Honeywell safety non contact switch is a tamper resistant safety system for
monitoring machine guards. The actuator being a passive component, the safety
switch is the only component that needs to be wired to the control unit and cannot be
defeated by regular magnet.
Each system is made up of one or several safety switches, actuators and a control unit.
The Honeywell FF-SNC safety non contact switches are designed in compliance with
the requirements of the EN 954-1 European Standard for Category 3 Protective
The FF-SNC is especially suited for applications where perfect door alignment can not
be obtained. The FF-SNC Series can be mounted on sliding, hinged or removable
machine guards. The output of the control unit is triggered as soon as the distance
between the safety switch and the actuator is greater or equal to 8 mm / 0.32 in. This
switching distance compensates for the machine vibration or any issue with the
The sensor and actuator small size makes it usable under tight space requirements.
The safety switches and the actuators provide excellent chemical and mechanical
resistance. Stainless steel housing versions fulfil the requirements of the Food and
The FF-SNC400 safety control unit comes in a 75 mm / 2.95 in package and can
monitor up to 4 sensors.
The FF-SNC200R2 safety control unit with its 22,5 mm / 0.89 in width will easily find a
place in the electrical cabinet and can monitor 2 sensors. Both control units can be
placed up to 100 m / 328 ft away from the safety non contact switches. The indicators
located on the front cover of both control units provide individual door status
The FF-SNC1EXT extension module can be added to the FF-SNC400 or FF-SNC200
control unit and allows the connection of 5 additional sensors.
per EN 954-1
Suitable for interfaces
*New: M8 plug model now available