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_D-C MOTOR CONTROL General Description 249 < Co 3 Sis | d Q:Sso Full Voltage--Magnetic Non-Reversing--Constant Speed J*s --For series, shunt or compound pl wound motors--Two pole contac tor--Operating coil with protective resistance unit for continuous duty --Two or three wire control--Sin gle coil overload relay--Reset but ton only or Start-Stop pushbuttons in cover--Nema type 1, 4, 5, 7, 9 and 12 enclosed or open type. This Section Contains: FULL VOLTAGE Page (Magnetic Non-Reversing--Constant Speed................ 250 Magnetic Reversing--Constant Speed...........................250 Manual Reversing Drum Switch- Constant Speed ....................................................... 251 REDUCED VOLTAGE Manual Non-Reversing--Constant Speed.......... 251-252 Magnetic Non-Reversing--Constant Speed................ 252 Magnetic Reversing and Non-Reversing-- Constant Speed (Heavy Duty) ............................. 253 Magnetic Reversing and Non-Reversing-- Adjustable Speed (Heavy Duty)...........................254 Field Rheostats................................................................... 256 oS 535= 1 m -n -20H5 -mH zOo Full Voltage--Magnetic Reversing--Constant Speed--For series, shunt or compound wound motors--Two contactors mechani cally interlocked--Operating coils with protective resistance units for continuous duty service--Two or three wire control--With and with out overload relay--Nema type 1 enclosed or open type. Full Voltage--Manual Reversing Drum Switch--Constant Speed--Size DRO and DRI, choice of operators, large or small lever, knob or adjustable lever--360 positioning of operator in 22V4 increments--On the job convertible from maintained to momentary operation. Size 2, ball type operating lever--60 throw from "Off" position--Maintained or momentary operation. All Sizes, Nema type 1 surface mounted or oil tight cavity mounting. Reduced Voltage--Manual Non-Reversing--Constant Speed--Face plate construction --Standard duty with starting resistor class AS115--Heavy duty with starting resistor class AS133-134-135--For se ries, shunt or compound wound motors--Moving oper ating lever to right cuts out successive steps of armature resistance--At extreme right hand position lever is held by electro-magnet--Low voltage protection. Reduced Voltage--Magnetic Non-Reversing--Constant Speed--General purpose with starting resistor class AS115--Multi-fingered ac celerating contactor cuts ouf starting resistance in armature circuit--Time limit acceleration by oil dashpot -- Adjustable timing -- Ad justable thermal overload relay--Nema type 1,4, 5 or 7 enclosed. o TO ~ nV^ Reduced Voltage--Magnetic Reversing and Non-Revers ing--Constant Speed--Heavy duty with starting resistor class AS136Main line, reversing and accelerat ing contactors--Definite timed ac celerating with timing relay--Time period for each acceleration step is adjustable--Field discharge resistor --Two or three wire control--Ther mal overload relay--Nema type 1 enclosed. sT>O-nO^ C oz O -H >-H OTO 5z ^ GO do .z ;;;:pco f-'> O ^ Reduced Voltage--Magnetic Reversing and Non-Revers ing--Adjustable Speed--Heavy duty with starting resistor class AS135--Main line, reversing and accelerating contactors -- Definite time acceleration with timing re lay--Time period for each accele rating step is adjustable--Field discharge resistor--Speed control from separately mounted field rheostat--Two or three wire con trol--Thermal overload relay-- NEMA type 1 enclosed. o< -OI-- >-H CJOj. j>.m m -t.77 >-< -CUTLER'HAMMER 249 .iJ