|Master Switch/Drum Controllers
Mini-Master Switch Type 4211
The Euclid Mini-Master Switch uses a handle operated cam switch mechanism in a NEMA rated housing. It is engineered for use where master
switch control is preferred, for CMAA duty overhead crane and similar applications.
Housings for surface or flush mounting.
NEMA Type 1, 3, 4, and 13.
Very compact size.
Choice of spring return vertical handle or maintained position vertical handle.
Plunger detents give operator "positive position feel."
Heavy-duty, cam-operated switch units.
Up to 5-speed points in each direction.
Up to 16 circuits plus feed for each direction provide unlimited operation sequences.
Jam-proof mechanism for contact protection.
Instructions 4211, Publication 152
Price List 4211, April 2013
Cam Operated Master Switch Type 4216
These master switches are of rugged construction to withstand the rough service encountered on applications in the steel mills, such as crane,
coal, and ore bridges, blooming and rolling mill auxiliaries, etc., where either floor or desk mounting is required.
All components are easily accessible for field service and inspection.
Open type for desk mounting or NEMA 1 enclosed.
Positive cam operation.
Sealed, pre-lubricated ball bearings on both ends of main shaft.
Step type or stepless.
Contact blocks are double-break silver alloy contacts with self-cleaning action.
Up to six (6) speed points in each direction. Five (5) speed points with the Joystick.
Maximum of sixteen (16) circuit combinations.
Flexible handle arrangements, left or right hand operation.
Rugged, mill-duty construction, heavy sheet metal frame with cast aluminum gear housing.
Slim vertical enclosure design offers close grouping of master switches.
Instructions 4216, Publication 105-1
Price List 4216, May 2010
Class 53 Master Switch Type 4253
Class 53 Master Switches are used to provide single handle pilot control of hoists, cranes, oven pushers, car movers and other equipment
requiring speed steps of wound rotor or direct current motors.
A special duplex control accessory is available to provide single handle control of two master controls to provide diagonal motion.
They satisfy applications requiring a definite sequence of opening and closing multiple pilot contacts.
Double Break Contacts.
Momentary or Maintained Contacts.
UL Listed File #E22655.
CSA Certified File #LR6535.
Price List, Catalog 4253, April 2013
Class 58 Drum Switch Type 4258
Class 58 Drum Controllers start, stop and change the speed and/or rotating direction of reversible AC and DC electric motors. Magnetic chuck
switches are also available.
Most controllers are available in NEMA 1 or NEMA 4 enclosures.
The Compact A Series of controllers offers Reversing, Two Speed and Two Speed Reversing controls in NEMA 1 enclosures for applications where
space may be restricted.
Note: To prevent unintentional operation, OSHA regulations and local installation codes may require guarding of handles. Consult these
requirements prior to selecting a drum switch handle.
Rated to 10HP 600V.
Easy Terminal Access.
Heavy Duty Contacts.
Choice of Handle Kits.
Variety of Mounting Accessories.
Variety of Enclosures NEMA 1, NEMA 4.
UL Listed E10590.
CSA Certified LR6535.
Price List, Catalog 4258, April 2013