New Product Plateau Head Knob-type Selector Switch A3US Easy connector enables less assembly and less wiring 50 mm body length. Highly reliable Major Omron basic switch, SS model built in. Possible cross over wiring on circuit construction. Easy one push to connect the Operation and Switch Units. Model Number Structure Model Number Legend....For information on combinations, refer to Ordering Information. (1) (2) (3) A3US-S - M-AC (3) Degree of Protection (1) Flange Color (2) Number of Notches and Reset Method Symbol Protection Symbol Color Symbol Number of notches Reset method Blank IP40 BBlack 2M 2 Manual 5 IP67 (Oil-proof type) M Metallic 3M 3 Ordering Information Switches Degree of Protection: IP40 Flange Color: Black Type No. of notches Reset method Output Model Selector color 2 SPDT A3US-SB-2M-AC Plateau Head Knob-type Selector Switch Manual Black 3DPDT A3US-SB-3M-AC Flange Color: Metallic Type No. of notches Reset method Output Model Selector color 2 SPDT A3US-SM-2M-AC Plateau Head Knob-type Selector Switch Manual Black 3DPDT A3US-SM-3M-AC Degree of Protection: IP65 (Oil-proof Type) Flange Color: Black Type No. of notches Reset method Output Model Selector color 2 SPDT A3US-SB-2M-AC5 Plateau Head Knob-type Selector Switch Manual Black 3DPDT A3US-SB-3M-AC5 Flange Color: Metallic Type No. of notches Reset method Output Model Selector color 2 SPDT A3US-SM-2M-AC5 Plateau Head Knob-type Selector Switch Manual Black 3DPDT A3US-SM-3M-AC5 Accessories and Tools (Sold Separately) The accessories and tools are the same as those for the A3U. Refer to the A3U datasheet. 1A3US Specifications Approved Standard Ratings Certification Authority UL (See Note: 1 and Note: 2) CSA (See Note: 1 and Note: 2) TV (See Note: 3) UL508 Certification no. CSA C22.2 No. 14 EN60947-5-1 CSA C22.2 No.14 Rating 30 VDC 0.1 A 30 VDC 0.1 A 12 30 VDC 0.1 A File no. E41515 2650068 J50236157 Note: 1. Only Switch Blocks are recognized by UL/CSA. (Surrounding air Temperature: 55 C) Note: 2. Please use the power supply specified in UL/CSA class 2. Note: 3. Use 4A 250V as short-circuit protective device when using under EN-compliant rating standard (IEC60127-2 SS1). Ratings Contacts Rated values are obtained from tests conducted under the following conditions. 30 VDC, 0.1 A (Resistive load) 1. Load: Resistive load Minimum applicable load: 1 mA at 5 VDC 2. Mounting conditions: No vibration and no shock 3. Temperature: 20 2 C 4. Operating frequency: 20 operations/min Characteristics Operating Characteristics Item Knob-type Selector Switch Features A3US Allowable Mechanical 30 operations/minute max. Total travel force (TTF) max. 0.34 operating Resetting force (RF) max. 0.34 Electrical 30 operations/minute max. frequency 2 notches: Approx. 90 Insulation resistance 100 M min. (at 500 VDC) Total travel (TT) 3 notches: Approx. 45 Contact resistance 250 m max. (initial value) Between terminals 500 VAC, 50/60 Hz for 1 minute Circuit Diagram of same polarity Dielectric strength Between each CN 1,500 VAC, 50/60 Hz for 1 minute terminal and ground SW1 1 Vibration 10 to 55 Hz, 1.5-mm double amplitude Malfunction resistance (malfunction within 1 ms) 2 Shock 2 3 Malfunction 300 m/s max. (malfunction within 1 ms) resistance 4 Mechanical 250,000 operations min. Durability 5 Electrical 100,000 operations min. 6 NON CONNECT Connector holding force 40 N max. 7 Rated insulation voltage (Ui) 30 V (EN60947-5-1) 8 NON CONNECT Electric shock protection class Class II 9 NON CONNECT Degree of contamination 3 (EN60947-5-1) 10 NON CONNECT Between terminals of same polarity Impulse Between terminals of Note: 1. This circuit is for a Two-notch Switch. withstand 800 V (EN60947-5-1) different polarity 2. Mount SW2 for a Three-notch Switch. voltage Between each terminal and ground Conditional short-circuit current 100 A (EN60947-5-1) Conventional enclosed 0.1 A (EN60947-5-1) thermal current (Ithe) Weight Approx. 30 g Degree of protection IP40, IP65 (Oil-proof type) -20 C to 70 C Ambient operating temperature (with no icing or condensation) Ambient operating humidity 35 % to 85 % RH -40 C to 70 C Ambient storage temperature (with no icing or condensation) Ambient storage humidity 35 % to 85 % RH 2 TOP VIEW