80 ohmite mfg. co. 1-866-9-ohmite ? intl 1-847-258-0300 ? fax 1-847-574-7522 ? www.ohmite.com ? info@ohmite.com ohmite mfg. co. 1600 golf rd., rolling meadows, il 60008 ? 1-866-9-ohmite ? intl 1-847-258-0300 ? fax 1-847-574-7522 ? www.ohmite.com ? info@ohmite.com 81 s t a n d a r d p a r t n u m b e r s f o r p o w e r t a p s w i t c h e s ohmite power tap switches (high power rotary switches) are constructed to provide dependable, convenient operation. all ohmite tap switches, from 15 to 100 amps, have ceramic arc-proof bodies and metal alloy contacts. their all-soldered and all-riveted construction assures mechani- cal and operational integrity. even the smallest ohmite tap power tap switches high-current, non-shorting type overall rating rating max. no. diameter depth behind panel (in./ mm ) shaft model (ac) (dc)* of taps (max., in./ mm ) single 2 in tandem 3 in tandem torque 711 7a 125v 7a 20v 11 1.56 / 39.6 13 / 16 / 20.6 1 25 / 32 / 45.2 2 15 / 32 / 62.7 7-12 oz.-in. 111 15a 125v 15a 20v 11 2.19 / 56 1 1 / 8 / 28.7 2 3 / 4 / 69.9 1.5-3.8 in.-lbs. 212 20a 150v 20a 20v 12 2.25 / 57 1 3 / 4 / 44.5 4 3 / 16 / 106.4 6 3 / 16 / 157.2 3-7 in.-lbs. 312 30a 300v 30a 20v 12 3.31 / 84 2 1 / 4 / 57.2 4 5 / 8 / 117.5 7 / 177.8 3-7 in.-lbs. 412 50a 300v 50a 20v 12 4.25 / 108 2 7 / 16 / 61.9 5 1 / 32 / 127.8 7 5 / 8 / 193.7 3-8 in.-lbs. 608 100a 300v 100a 20v 8 6.25 / 159 3 5 / 16 / 84.1 6 13 / 16 / 173.0 10 5 / 16 / 261.9 25-35 in.-lbs. *non-inductive load all dimensions for reference only; consult factory for details. switch, rated at 7 amps, has a reinforced non-metal body and solid metal alloy contacts. these units feature high cur- rent handling capability in a small package. f e a t u r e s ? slow-breaking, quick-make action proved best for switching ac current. ? non-shorting type disconnects previous circuit before establish- ing contact for succeeding tap. ? ceramic and metal construction provides resistance to arcing, burning and charring. ? tandem assemblies available as standard models. ? ul listed for models 111, 212, 312 and 412 ? rohs compliant product avail- able jan. 2006 add e suffix to part number to specify. s p e c i f i c a t i o n s material body: ceramic, arc-proof (models 212, 312, 412, 608). compression molded polyester (model 111). melamine phenolic (model 711) contacts: silver alloy. common contact is rounded for assured seating. self-cleaning with built in wiping action. terminals: soldering. 711 also accepts quick connectors; 412, #10 screws; 608, 0.25 bolts. mounting model 711: using 3 / 8 -32 bushing for 1 / 8 thick maximum panel. four non-turn lug positions are possible on the single, unen- closed switch. recesses in body of switch permit positioning of non-turn washer at 12, 3, 6 and 9 oclock. 3 / 16 hole for non-turn washer. shaft 1 / 4 model 111: for 1 / 4 panel, maxi- mum, using 3 / 8 -32 bushing and hex nut. a 3 / 16 hole is required for the non-turn washer. shaft 1 / 4 model 212: using 3 / 8 -32 threaded bushing and hex nut. a 5 / 32 hole is required for the non-turn pin. shaft 1 / 4 model 312: for 1 / 4 panel, maxi- mum, use three 10-32 flat-head machine screws 3 / 8 long. shaft 1 / 4 model 412: for 1 / 4 panel, maxi- mum, use three 10-32 flat-head machine screws 3 / 8 long. a 5 / 16 hole in panel is required for shaft. model 608: for 1 panel, maxi- mum, three flat-head machining screws 1 / 4 -20, 1 1 / 4 long. drill a 7 / 16 hole in panel for shaft. shaft 3 / 8 note: since all tap switches are electro-mechanical devices, they are subject to wear and, there- fore, have a finite life. typical tandem model model 711 typical ceramic style see page 82 for knobs, dials, and other hardware 3 60 4 90 5 120 6 150 7 180 8 210 9 240 10 270 11 300 12 330 number of taps * 711- * single unit total rotation 711- * -t2 2 in tandem 711- * -t3 3 in tandem 111- * single unit 111- * -t2 2 in tandem 212- * single unit 212- * -t2 2 in tandem 212- * -t3 3 in tandem 312- * single unit 312- * -t2 2 in tandem 312- * -t3 3 in tandem 412- * single unit 412- * -t2 2 in tandem 412- * -t3 3 in tandem model 711 7a - 125v model 111 15a - 125v model 212 20a - 150v model 312 30a - 300v model 412 50a - 300v 3 80 4 120 5 160 6 200 7 240 8 280 608- * single unit 608- * -t2 2 in tandem 608- * -t3 3 in tandem model 608 100a - 300v = non-standard values subject to minimum handling charge per item * insert number of taps at asterisk for complete part number (e.g. 111- 3 -t2) number of taps * total rotation check product availability at www.ohmite.com
80 ohmite mfg. co. 1600 golf rd., rolling meadows, il 60008 ? 1-866-9-ohmite ? intl 1-847-258-0300 ? fax 1-847-574-7522 ? www.ohmite.com ? info@ohmite.com ohmite mfg. co. 1-866-9-ohmite ? intl 1-847-258-0300 ? fax 1-847-574-7522 ? www.ohmite.com ? info@ohmite.com 81 power tap switches high-current, non-shorting type model 212 model 111 model 412 model 312 model 608
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