Safety Interlock Switches MA Series MA For full product information, visit www.sti.com. Use the SpeedSpec code or scan the QR Code for quick access to the specific web page. Magnetically Actuated Safety Interlock Switches * Large selection--choose from a large selection of contact configurations housed in plastic to satisfy most application requirements * NEMA 6 enclosure enables the MA Series switches to satisfy most application requirements (MA 3, 4, 5 are NEMA 4) * Misalignment tolerant--the non-contact actuation of the switches makes them very tolerant to misalignment of up to 10 mm (0.39 in.) * Variety of terminations--select various cable lengths or terminal strip termination for easy installation. Cable connector on selected models. * Long life--the MA Series is designed for a minimum of one million actuations * A Rapid Delivery Product: Select models are available for shipment today or within 3 to 5 days Specifications G Electrical Safety Contacts: R C All Models Unless Indicated AC models DC models Safety Contact Operating Distance: Auxiliary Contacts: MA-1 thru 5, 10, 12, 13, 16 -- 1 N/C MA-13, 16, 21 -- 2 N/C MA-12, 13, 14, 16 -- 1 N/C MA-13, 15, 16, 20, 21 -- 2 N/C Make 7-12 mm (0.28-0.47in.); Break 12-25 mm (0.47-0.98 in.) 1 N/O 1 N/C Make 8-13 mm (0.39-0.51 in.); Break 8-10 mm (0.31-0.39 in.) Make 21 mm (0.83 in.); Break 24 mm (0.94 in.) 230 VAC 110 VAC 30 VDC 2 A, fuse externally 1.6 A quick acting 3 A, fuse externally 2.5 A quick acting 1 A, fuse externally 800 mA quick acting 0.3 A max., fuse externally 0.2 A quick acting 2 A fast acting 1 A fast acting 1.6 A fast acting 0.8 A fast acting 1 x 106 Safety Aux. 3.0 mS 0.5 mS 2.1 mS 0.3 mS 0.7 mS 0.7 mS 10 G 10 G 10 G, 50 to 100 Hz MA-2, 4, 12, 13, 14, 15, 16, 21 MA-3 Aux. Contact Operating Distance: MA-2, 4, 16, 21 MA-3 Safety Rated Voltage: AC models: All except MA-10 AC models: MA-10 DC models Safety Rated Current: AC models: All except MA-3 AC model: MA-3 DC models: All except MA-15 DC model: MA-15 Internal Fuse: AC models DC models External Fuse (Customer Supplied): AC models DC models: All except MA-15 Electrical Life: Mechanical--Special Safety Reed Closing Time: Drop-Out Time: Bounce Time: Shock: Vibration: Mechanical Mounting: Any position Case & Actuator Material: Molded ABS Wiring Connection: Various lengths or male M12 micro connector Weight: Approx. 384 g (14 oz.) Color: Red Mechanical Life: 10 x 106 Environmental Protection: All models except MA-3, 4, 5 IP67 (NEMA 6) MA-3, 4, 5 IP65 (NEMA 4) Operating Temperature: All models except MA-3, 4, 5 -10 to 55C (14 to 131F) MA-3, 4, 5 -10 to 65C (14 to 149F) Compliance Standards: EN1088, EN292, EN60204-1 Approvals/Listings: CE marked for all applicable directives All models: except MA-3, 4, 5 UL and C-UL MA-3, 4, 5 cCSAus 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. G82 US Conforms to EN1088, EN292, EN60204-1 UL and C-UL listed www.sti.com/info MA Series Safety Interlock Switches Basic Body Styles MA-1, MA-2, MA-20 and MA-21 MA-10 and MA-16 MA-12 and MA-13 MA-14 and MA-15 Door Closed, Machine RUN MA-3, MA-4 and MA-5 G 2mm SLIDING DOOR Operation Operating Principle 2mm Mounting Examples Door Closed, Machine RUN Door 2mm Closed, Machine RUN Contact Arrangement SLIDING DOOR 2mm Min 50mm SLIDING DOOR 2mm Switch 2mm Actuator Door 1 Switch Actuator Door 1 Switch Encapsulated in the MA Series is a unique high-power industrial reed which is de-rated by a non-resetable overload protection circuit depending on switch type. On presenting the actuator to the switch, the high intensity magnetic field from the actuator causes the contacts to close. On removing the actuator (opening the door), the safety contacts open, isolating the machine. Actuator Door 1 Switch Actuator Min 50mm MA-1, 5, 10, 11, 12, 13, 14, 16 Door 2 Min 50mm Actuator Door 2 Switch Actuator Door Closed, Machine RUN 2mm SLIDING DOOR 2mm SLIDING DOOR MA-3, 11, 13, 16, 20 Door 2 It is advisable, where possible, to mount the switch and actuator on non-ferrous materials otherwise it may affect the operating distances. Door Closed, Machine RUN MA-2, 4, 11, 12, 13, 14, 16 Switch MA-11, 13, 15, 16, 21 Door Open, Machine STOP, Door Covering Switch Door Open, Machine STOP, Door Covering Switch No access to switch Noattempts access to switch thus preventing thus preventing attempts to defeat the interlock to defeat the interlock SLIDING DOOR SLIDING DOOR Wherever possible the units should be mounted so that no access can be obtained to the switch when the guard door is open, thus preventing attempts to defeat the safety system. Door Closed, Machine RUN Select models are available for Rapid Delivery. Visit this product on www.sti.com for details. 2mm SLIDING DOOR www.sti.com/info Door Open, Machine STOP, Door Covering Switch No access to switch thus preventing attempts to defeat the interlock SLIDING DOOR G83 MA Series Safety Interlock Switches Applications Typical Application of MA Series with a Safety Monitoring Relay Typical applications are on sliding guard doors or swinging guard doors. 24 VAC/DC, 110 VAC K1 (AUX) START L1 L2 L3 K2 (AUX) MOMENTARY PUSH BUTTON L1 L2 L3 STOP MOMENTARY PUSH BUTTON A1 S21 13 + K1 K2 MA SERIES INTERLOCK SWITCH + K2 CONTACT PROTECTION e.g. THERMAL CUT OUT K1 BROWN SR101A EB SERIES A2 LATCHING E-STOP BUTTON 14 G 24 FUSE FUSE K1 K2 CONTACT PROTECTION e.g. THERMAL CUT OUT BLUE 23 Relay control and fault monitoring Power supply (S11 = 24 V) FUSE GUARD CLOSED S11 M M a full explanation of the circuit operating principle and fault detection, For see "Common Circuit Examples" in The Expert Area Section of this catalog on page A31 Pin Assignments with Connector Option 1 6-pin Micro AC 1/2"-20 3 4 2 6 1 5 5 6 Safety N.C. 2 MA 21 QD 1 3 6 3 4 4 3 Aux N.O. 2 4 2 4 1 3 1 3 MA 2 QD MA 16 QD MA 20 QD 4-pin Micro DC M12 2 MA 2, 16, 20 QD Safety N.C. 1 3 2 1 3 4 4 Select models are available for Rapid Delivery. Visit this product on www.sti.com for details. G84 5 1 2 Safety N.C. www.sti.com/info Aux MA 2 QD N.O. MA 20 QD N.C. MA Series Safety Interlock Switches Dimensions (mm/in.) MA-10 MA-1, 2, 20, 21 30.3 1.19 19.5 0.77 30.3 1.19 19.5 0.77 16.0 0.63 4.0 0.16 19 0.75 7 0.28 16.0 0.63 4.0 0.16 54 2.13 84 3.31 76.3 3.00 60.0 2.36 46 1.81 76.3 3.00 60.0 2.36 6 0.24 19 0.75 8.15 0.32 4.4 0.17 SWITCH MA-11 17 0.67 7.5 0.29 16 0.63 4 0.16 73 2.87 4 11 0.16 0.43 19 0.75 4 0.16 82 3.23 73 2.87 = = = 4.5 0.18 ACTUATOR 52 2.05 MA-14, 15 5 0.2 4.5 0.18 7 0.28 4.5 0.18 = 46 0.81 SWITCH 4.4 0.17 ACTUATOR 4.5 0.18 12 0.47 19 0.75 7 0.28 22 0.87 G 28 1.10 63 2.48 87 3.43 78 3.07 6.4 0.25 O4.2 0.165 O8.1 0.32 16.5 0.65 24 0.94 SWITCH 4.5 0.18 MA-12 24 0.94 ACTUATOR 4.5 0.18 17 0.67 14 0.55 3 0.12 SIDE VIEW MA-13 18 0.71 24 0.94 27 1.06 80 3.15 30 1.18 36 1.42 42 1.65 18 0.71 80 3.15 19.0 0.75 11.0 0.43 30 1.18 57 2.24 MA-16 17.0 0.67 54.0 2.13 45 1.77 SWITCH SWITCH ACTUATOR SWITCH ACTUATOR 19.0 0.75 82.5 3.25 19.0 0.75 73.0 2.87 82.5 3.25 7.2 0.28 7.2 0.28 ACTUATOR Select models are available for Rapid Delivery. Visit this product on www.sti.com for details. www.sti.com/info G85 MA Series Safety Interlock Switches Ordering G Model AC Only MA-1APC2 (AC only) MA-1APC4 (AC only) MA-1APC8 (AC only) MA-1APCC (AC only) MA-2APC2 (AC only) MA-2APC4 (AC only) MA-2APC6 (AC only) MA-2APC10 (AC only) MA-2APC15 (AC only) MA-2APCC (AC only) MA-3APTC (AC only) MA-4APTC (AC only) MA-5APTC (AC only) MA-10APC2 (110 VAC, 3A max) MA-10APC4 (110 VAC, 3A max) MA-11AP10C3 MA-11AP11C3 MA-11AP11C10 MA-11AP20C3 MA-11AP21C3 MA-12AP10C3 MA-12AP11C3 MA-13AP10C3 MA-13AP11C3 MA-13AP20C3 MA-13AP21C3 MA-16AP10C3 (AC only) MA-16AP10C6 (AC only) MA16AP10C10 (AC only) MA16AP10CC MA-16AP11C3 (AC only) MA-16AP11C6 (AC only) MA-16AP20C3 (AC only) MA-16AP20C6 (AC only) MA-16AP21C3 (AC only) MA-16AP21C6 (AC only) MA-20APC4 (AC only) MA-20APCC (AC only) MA-21APC2 (AC only) MA-21APC4 (AC only) MA-21APC6 (AC only) MA-21APC10 (AC only) MA-21APC15 MA-21APCC Contacts Wiring Entry Part No. 1 N/C 1 N/C 1 N/C 1 N/C 1 N/C + 1 N/O 1 N/C + 1 N/O 1 N/C + 1 N/O 1 N/C + 1 N/O 1 N/C + 1 N/O 1 N/C + 1 N/O 1 N/C + 1 N/C 1 N/C + 1 N/O 1 N/C 1 N/C 1 N/C 1 N/C 1 N/C + 1 N/O 1 N/C + 1 N/O 2 N/C 2 N/C + 1 N/O 1 N/C 1 N/C + 1 N/O 1 N/C 1 N/C + 1 N/O 2 N/C 2 N/C + 1 N/O 1 N/C 1 N/C 1 N/C 1 N/C 1 N/C + 1 N/O 1 N/C + 1 N/O 2 N/C 2 N/C 2 N/C + 1 N/O 2 N/C + 1 N/O 2 N/C 2 N/C 2 N/C + 1 N/O 2 N/C + 1 N/O 2 N/C + 1 N/O 2 N/C + 1 N/O 2 N//C + 1 N/O 2 N/C + 1 N/O 2 m cable, pre-wired 4 m cable, pre-wired 8 m cable, pre-wired 4 pin micro DC M12 2 m cable, pre-wired 4 m cable, pre-wired 6 m cable, pre-wired 10 m cable, pre-wired 15 m cable, pre-wired 4-pin micro DC M12 Terminal connections Terminal connections Terminal connections 2 m cable, pre-wired 4 m cable, pre-wired 3 m cable, pre-wired 3 m cable, pre-wired 10 m cable, pre-wired 3 m cable, pre-wired 3 m cable, pre-wired 3 m cable, pre-wired 3 m cable, pre-wired 3 m cable, pre-wired 3 m cable, pre-wired 3 m cable, pre-wired 3 m cable, pre-wired 3 m cable, pre-wired 6 m cable, pre-wired 10 m cable, pre-wired 4-pin micro DC M12 3 m cable, pre-wired 6 m cable, pre-wired 3 m cable, pre-wired 6 m cable, pre-wired 3 m cable, pre-wired 6 m cable, pre-wired 4 m cable, pre-wired 4-pin micro DC M12 2 m cable, pre-wired 4 m cable, pre-wired 6 m cable, pre-wired 10 m cable, pre-wired 15 m cable, pre-wired 6-pin micro DC M12 44507-0010 44507-0020 44507-0180 44507-0619 44507-0030 44507-0040 44507-0150 44507-0750 44507-0740 44507-0600 44507-0050 44507-0060 44507-0070 44507-0110 44507-0330 44507-1150 44507-1160 44507-1161 44507-1170 44507-1180 44507-1250 44507-1260 44507-1350 44507-1360 44507-1370 44507-1380 44507-1650 44507-1651 44507-1659 44507-1652 44507-1660 44507-1661 44507-1670 44507-1671 44507-1680 44507-1681 44507-0345 44507-0640 44507-0160 44507-0260 44507-0250 44507-0170 44507-0175 44507-0660 (Continued on next page) Select models are available for Rapid Delivery. Visit this product on www.sti.com for details. G86 www.sti.com/info MA Series Safety Interlock Switches Ordering (continued) Model Contacts DC Only MA-1DPC2 1 N/C MA-1DPC4 1 N/C MA-1DPC8 1 N/C MA-1DPCC 1 N/C MA-2DPC2 1 N/C + 1 N/O MA-2DPC4 1 N/C + 1 N/O MA-2DPC6 1 N/C + 1 N/O MA-2DPC10 1 N/C + 1 N/O MA-2DPC15 1 N/C + 1 N/O MA-2DPCC 1 N/C + 1 N/O MA-11DP10C3 1 N/C MA-11DP11C3 1 N/C + 1 N/O MA-11DP20C3 2 N/C MA-11DP20C5 2 N/C MA-11DP21C3 2 N/C + 1 N/O MA-12DP10C3 1 N/C MA-12DP11C3 1 N/C + 1 N/O MA-13DP10C3 1 N/C MA-13DP11C3 1 N/C + 1 N/O MA-13DP20C3 2 N/C MA-13DP21C3 2 N/C + 1 N/O MA-13DP21C10 2 N/C + 1 N/O MA-14DP10C3 1 N/C MA-14DP11C3 1 N/C + 1 N/O MA-15DP21C3* 2 N/C + 1 N/O MA-15DP21C5* 2 N/C + 1 N/O MA-15DP21CC* 2 N/C + 1 N/O MA-16DP10C3 (DC only) 1 N/C MA-16DP10C6 (DC only) 1 N/C MA16DP10C10 (DC only) 1 N/C MA16DP10CC (DC only) 1 N/C MA-16DP11C3 (DC only) 1 N/C + 1 N/O MA-16DP11C6 (DC only) 1 N/C + 1 N/O MA-16DP20C3 (DC only) 2 N/C MA-16DP20C6 (DC only) 2 N/C MA-16DP21C3 (DC only) 2 N/C + 1 N/O MA-16DP21C6 (DC only) 2 N/C + 1 N/O MA-20DPC4 (24 VDC only) 2 N/C MA-20DPCC (24 VDC only) 2 N/C MA-21DPC2 (24 VDC only) 2 N/C + 1 N/O MA-21DPC4 (24 VDC only) 2 N/C + 1 N/O MA-21DPC6 (24 VDC only) 2 N/C + 1 N/O MA-21DPC10 (24 VDC only) 2 N/C + 1 N/O MA-21DPC15 (24 VDC only) 2 N/C + 1 N/O MA-21DPCC 2 N/C + 1 N/O Accessories Spare Actuator (1-5 & 20, 21), Red ABS Plastic Replacement Actuator for MA-11, Red ABS Plastic Replacement Actuator for MA-12, Red ABS Plastic Replacement Actuator for MA-13, Red ABS Plastic Replacement Actuator for MA-14, Red ABS Plastic Replacement Actuator for MA-15, Red ABS Plastic Replacement Actuator for MA-16, -10 Red ABS Plastic *MA-15 switches are not compatible with the following STI safety relays: SR203M, SR203AM, SR208AD, SR209AD and all Legacy Relays. Wiring Entry Part No. 2 m cable, pre-wired 4 m cable, pre-wired 8 m cable, pre-wird 4p-pin micro DC M12 2 m cable, pre-wired 4 m cable, pre-wired 6 m cable, pre-wired 10 m cable, pre-wired 15 m cable, pre-wired 4-pin micro DC M12 3 m cable, pre-wired 3 m cable, pre-wired 5 m cable, pre-wired 3 m cable, pre-wired 3 m cable, pre-wired 3 m cable, pre-wired 3 m cable, pre-wired 3 m cable, pre-wired 3 m cable, pre-wired 3 m cable, pre-wired 3 m cable, pre-wired 10 m cable, pre-wired 3 m cable, pre-wired 3 m cable, pre-wired 3 m cable, pre-wired (300 mA max.) 5 m cable, pre-wired (300 mA max.) 6-pin micro DC M12 3 m cable, pre-wired 6 m cable, pre-wired 10 m cable, pre-wired 4-pin micro DC M12 3 m cable, pre-wired 6 m cable, pre-wired 3 m cable, pre-wired 6 m cable, pre-wired 3 m cable, pre-wired 6 m cable, pre-wired 4 m cable, pre-wired 4-pin micro DC M12 2 m cable, pre-wired 4 m cable, pre-wired 6 m cable, pre-wired 10 m cable, pre-wired 15 m cable, pre-wired 6-pin micro DC M12 44507-0022 44507-0024 44507-0028 44507-0629 44507-0392 44507-0390 44507-0396 44507-0380 44507-0370 44507-0650 44507-1110 44507-1120 44507-1130 44507-1131 44507-1140 44507-1210 44507-1220 44507-1310 44507-1320 44507-1330 44507-1340 44507-1341 44507-1410 44507-1420 44507-1540 44507-1541 44507-1549 44507-1610 44507-1611 44507-1612 44507-1619 44507-1620 44507-1621 44507-1630 44507-1631 44507-1640 44507-1641 44507-0340 44507-0630 44507-0270 44507-0280 44507-0290 44507-0350 44507-0360 44507-0670 G 44507-0700 44507-0711 44507-0712 44507-0713 44507-0714 44507-0715 44507-0716 Mounting Brackets can be used with Universal this product. See page G123 for details. Select models are available for Rapid Delivery. Visit this product on www.sti.com for details. www.sti.com/info G87