Sprecher+Schuh Magnetic Motor Starters

Kwikstarters

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Sprecher + Schuh offers a broad selection of pre-assembled or "build-from-stock" starters housed in a high impact, non-metallic, cUL approved, Type 1, 12, 4/4X enclosure. Built for convenience, space savings and economy, the KWIKstarter line is efficiently designed to use stock CA7/CAU7 contactors and advanced CEP7 solid state or CT7N thermal overloads. Contactor and overload are either prewired and pre-mounted onto the enclosure's built-in DIN-rail or may be ordered as separate components. Ample knockouts and open terminals guarantee quick, no fuss wiring.

Sized for Most Industrial Applications

KWIKstarters control motors up to 30HP @ 460V (30HP @ 575V) in two enclosure sizes measuring only 208 x 98mm (8.19" x 3.86") or 250 x 125mm (9.84" x 4.92"). This covers over 85% of industrial motor control applications in a very compact package that can be mounted adjacent to or directly on equipment.

Variety of Easy to Select Options

KWIKstarters are available in UL sizes 9 to 43 amps, or NEMA labeled sizes 00, 0, 1 and 2. The enclosure and controls are designed for simplicity. A variety of control options and sizes make it a versatile off-the-shelf motor starter for a variety of common applications.

 

Non-Combination Starters

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Sprecher + Schuh non-combination magnetic motor starters are intended to eliminate the purchase and assembly of a separate contactor, overload relay and associated wiring. When purchased with an enclosure, the starters are mounted and ready to install on receipt.

Starting with the best

At the heart of all magnetic starters is the Sprecher + Schuh CAT7, CAT6 and CAT5 line of motor starters. These starters are compact and offer intermediate sizes to better match specific motor requirements. This equates to generous wiring space and less wasted horsepower capacity.

Magnetic starters are equipped with Sprecher + Schuh's CEP7 solid state overload relay as a standard selection. Unlike traditional overload relays that indirectly sense motor current through heater elements, CEP7 solid state overload relays measure motor current directly through integrated current transformers and on board electronics. The electronics provide numerous advantages over electromechanical relays.

 

Combination Starters

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Sprecher + Schuh's through-the-door operated combination starters represent an economical alternative to the classic flange-operated solution. They are designed to meet rigid UL/NEC withstand specifications. Sprecher + Schuh has been building custom control panels with this design for years. Experience the durability of this product!

Starting with the best

At the heart of all Sprecher + Schuh combination starters is the CAT7 and CAT6 line of motor starters. These starters are compact and offer intermediate sizes to better match specific motor requirements. This equates to generous wiring space and less wasted horsepower capacity.

Standard Sprecher + Schuh combination starters are equipped with the state of the art CEP7 solid state overload relay. CEP7 solid state overload relays measure motor current directly through integrated current transformers and on board electronics (ASICs). The electronics provide numerous advantages over electromechanical relays such as increased accuracy, a wider adjustment range, lower energy usage, and less heat generation which requires less cooling.

 

Explosion Proof

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Type 7/Type 9 and Type 4 Protection
Type 7 enclosures are designed to provide protection against an internal explosion when operated in a hazardous gas environment. Type 9 enclosures protect from internal explosion in a hazardous dust environment. Both types must also prevent enclosed heat generating mechanisms from causing external surfaces to reach temperatures capable of igniting explosive gas-air mixtures in the surrounding atmosphere. Sprecher + Schuh explosion proof starters meet all requirements of both classifications. Explosion proof enclosures are also equipped with a watertight Nitrile gasket for compliance with Type 4 specifications.

Starting with the best

At the heart of all Sprecher + Schuh combination starters is the CAT7 and CAT6 line of motor starters. These starters are compact and offer intermediate sizes to better match specific motor requirements. This equates to generous wiring space and less wasted horsepower capacity.

Standard Sprecher + Schuh explosion proof starters are equipped with the state of the art CEP7 solid state overload relays. CEP7 solid state overload relays measure motor current directly through integrated current transformers and on board electronics (ASICs). The electronics provide numerous advantages over electromechanical relays such as increased accuracy, a wider adjustment range, lower energy usage, and less heat generation which requires less cooling.

Combination starters for protection and convenience

Explosion-proof combination starters can include either a UL489 approved Thermal Magnetic Circuit Breaker (MCCB), or non-fusible disconnect. The MCCB utilizes the instantaneous trip ability of a magnetic breaker for short circuit currents combined with the overload tolerance of thermal circuit breakers for normal starting demands. An MCCB can also be quickly reset after the fault has been cleared.

A molded case switch (MCP) is used in applications requiring only a non-fused disconnect. Sprecher + Schuh uses top of the line molded case circuit breakers and MCPs from quality suppliers.

 

Multi-Speed Starter

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Sprecher + Schuh multispeed starters can produce multiple constant speeds by specially arranging the windings of multispeed motors. Motors with two separate windings or one reconnectable winding can be used. All Sprecher + Schuh multispeed starters use the CAT7 or CAT6 line of motor starters. These starters are compact and offer intermediate sizes to better match specific motor requirements. This equates to generous wiring space and less wasted horsepower capacity. Protecting the multispeed starter is the state of the art CEP7 solid state overload relay. The CEP7 electronics provide numerous advantages over electromechanical relays such as increased accuracy, a wider adjustment range, lower energy usage, and less heat generation which requires less cooling.

Choose the right starter for your application

Multispeed motors fall into three types, all with differing torque characteristics. Selecting the proper type depends on the connected load. Our custom controls panel shop assembles a variety of multispeed starters, such as:

  • Constant Torque motors deliver the same torque at each speed, and horsepower varies directly with the speed. Typical applications include reciprocating pumps, conveyors, mills and mixers.
  • Constant Horsepower motors deliver the same horsepower at each speed and the torque varies inversely with the speed. Typical applications include machine tools such as drills, lathes, mills, punch presses and saws.
  • Variable Torque (variable horsepower) motors deliver a torque that varies directly with the speed and the horsepower varies directly with the square of the speed. Typical applications include centrifugal pumps, fans and blowers.

 

Reduced Voltage Starter

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Sprecher + Schuh reduced voltage starter, produced in our custom controls panel shop, are designed for starting squirrel cage induction motors where the starting current of a motor is likely to exceed local power company restrictions, interfere with plant operations or where the load may be damaged by high starting torques.

Starting with the best

All standard Sprecher + Schuh reduced voltage starters use the CAT7 or CAT6 line of motor starters. These starters are compact and offer intermediate sizes to better match specific motor requirements. This equates to generous wiring space and less wasted horsepower capacity. Protecting the multispeed starter is the state of the art CEP7 solid state overload relay. The CEP7 electronics provide numerous advantages over electromechanical relays such as increased accuracy, a wider adjustment range, lower energy usage, and less heat generation which requires less cooling.