Safety Interlock Switches MFS For full product information, visit www.sti.com. Use the SpeedSPEC Code for quick access to the specifc web page. Magnetic Ferroresonant Stand- Alone Safety Interlock Switch Tamper resistantthe combination of magnetic and ferroresonant signals required to close the safety contacts makes the MFS very tamper resistant Stand-aloneuse for lower risk applications as a stand-alone safety switch allowing direct switching of relays and contactors up to 2 A at 230 VAC MFS-11 provides a visible LED which illuminates green when the actuator is in range and contacts are closed MFS-12 provides a dual color LED indicator. The LED illuminates green when the actuator is in range and the contacts are closed. The LED illuminates Red when the actuator is out of range and contacts are open. Compact sizemounts easily on 1-in. square tubing Use with safety monitoring relays in applications requiring a higher level of safety reliability NEMA 4 enclosure enables water washdown cleaning R A Rapid Delivery Product: Select models are available for shipment today or C US G within 3 to 5 days Conforms to EN1088, EN292, EN60204-1, EN954-1, EN947-5-3, EN60947-5-1, EN50081, EN50082, Specifications EN61000-6-2 UL and C-UL listed Electrical MFS-11 MFS-12 Power Supply: 24 VDC Power Consumption: 2 VA Max Cable Length: 100 m Safety Outputs: 1 N/C or 2 N/C 2 N/C Auxiliary Contact: 1 N/O Operating Distance: ON = 6-9 mm OFF = 10-12 mm Minimum Gap: 2 mm Safety Max Switched Current/Voltage: 2 A / 230 VAC 2 A / 30 VDC Aux. Max. Switched Current/Voltage: 2 A / 230 VAC 2 A / 30 VDC Max. Output Fuse: 2 A quick acting Mechanical Mounting: 2 x M4 screws, supplied Case Material: ABS Weight: 198 g (7 oz.) Color: Blue Indication: Green = Guard Closed Green = Guard Closed Red = Guard Open 6 Mechanical Life: 10 x 10 Environmental Protection: IP67 Operating Temperature: -10 to 55C (-14 to 131F) Vibration/Shock: 50-100 Hz / 10 g Compliance Standards: EN1088, EN292, EN60204-1, EN954-1, EN947-5-3, EN60947-5-1, EN50081, EN50082, EN61000-6-2 Approvals/Listings: CE marked for all applicable directives, UL and C-UL Safety Category: Cat. 3 per EN954-1 when used with an appropriate safety monitoring relay Specifications are subject to change without notice. Note: The safety contacts of the STI switches are described as normally closed (N/C) i.e., with the guard closed, actuator in place, and the machine able to be started. www.omron247.com G-111MFS Safety Interlock Switches Operation Operating Principle Contact Arrangements On presenting the actuator to MFS-11 the switch, the high intensity magnetic field, together with a resonant frequency signal, causes the contacts to close. On removing the actuator (opening the door), the safety MFS-12 contacts open, isolating the machine. The required combination of magnetic and ferroresonant signals makes the MFS very tamper resistant. Mounting Examples Connector Configurations MFS-11P11 6-pin Dual Keyway Micro Style 1/2-20 Safety Circuit (N/0) G 1 5 6 4 2 3 + 24 VDC Safety Circuit (N/C) 0 VDC MFS-11P20 6-pin Dual Keyway Micro Style 1/2-20 Safety Circuit (N/0) 1 5 6 4 2 3 + 24 VDC Safety Circuit (N/O) 0 VDC MFS-12 8-pin Single Keyway Micro Style M12 Connector White Normally Closed Pink 7 1 Blue Supply 24 VDC -ve 6 Red Supply 24 VDC +ve 2 8 Grey 5 3 Normally Closed 4 Brown Yellow Normally Open AUX Green G-112 www.omron247.com