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Text version of the page
CM SERIES
Safety Interlock Switches
Control Unit Specifications
Electrical CM-S4 CM-S41, CM-S21 & CM-SE Power Supply: 24 VAC/DC ± 10% CM-S41 — 24 VAC/DC, 110 VAC CM-S21 & CM-SE — 24 VAC/DC Power Consumption: 2.4 VA typical CM-S41 — 6 VA; CM-S21 & CM-SE — 3 VA External Fuse (Operating Voltage): 0.25 A quick acting — Input Fuse (Supply Voltage): — 500 mA resetable Safety Inputs: 1 N/O + 1 N/C CM-S41 — 4 CM-S11 or CM-S31 switches CM-S21 — 2 CM-S11 or CM-S31 switches CM-SE — 5 CM-S11 or CM-S31 switches Max Cable Length: — 100 m (328 ft.) Max Input Resistance: Contact factory Min. Approach Speed: Contact factory Relay Outputs: 1 N/O safety + 1 N/O aux. CM-S41 & CM-S21 — 2 N/O; CM-SE — N/A Auxiliary Contact of Controls: 4 A / 24 VAC/DC CM-S41 & CM-S21 — 1 N/C; CM-SE — N/A Max Switched Current/Voltage: 4 A / 24 VAC/DC 4 A / 230 VAC; 2 A / 24 VDC (resistive) Min Switched Current/Voltage: 4 mA / 12 V 10 V / 10 mA Impulse Withstand Voltage: 250 V Max Drop-Out Time: 18 ms Deactivation by sensor 13 mS Max Output Fuse: 4 A quick acting AC = 5 A; DC = 2.5 A; quick acting Reset Mode: Automatic Monitored manual or automatic External Device Monitoring: N/C loop between Y1 and Y2 N/C loop between X1 and X2 Mechanical Mounting: 35 mm (1.38 in.) DIN rail 35 mm (1.38 in.) DIN rail Case Material: Polycarbonate PolycarbonateOSTI Safety Interlock Switches Catalog - 28201 G
Max Wire Size: 2 x 2.5 mm2 (12 AWG) 1 x 2.5 mm stranded, 1 x 4 mm solid Weight: 240 g (8.5 oz.) CM-S41 — 575 g (20.3 oz.) CM-S21 — 183 g (6.5 oz.) CM-SE — 135 g (4.8 oz.) Color: Gray Red Indication: U: Green = On Power = Red Outputs Open: Red = On Outputs Closed: Green = On Outputs Closed: Green = On Outputs Open: No Light = Off D11, D12, D21, D22: Green = Gate closed Gate Closed: Yellow = On D31, D32, D41, D42: Red = Gate open Gate Open: No Light = Off Mechanical Life: 30 x 10
6 10 x 10
6 Environmental Protection: IP40 (NEMA 1) Housing IP40, Terminals IP20 Operating Temperature: 0 to 50°C (32 to 122°F) 10 to 55°C (50 to 131°F) Humidity: 95% RH at 55°C (131°F) 85% maxPlease view complete specifications, ordering and accessories for this product at www.sti.com to assure it is correct for your application. Specifications are subject to change without notice. Popular Models: For your convenience, we’ve listed our most popular models of this product on page G-42. Omron STI has many additional models available, some are readily available. Use www.sti.com’s SpeedSPEC Code “Interlock” to quickly review additional products.