Contactors

Electric Motor Contactors & Overload Relays

CA7 Contactors up to 75 HP

Dual power terminals speed wiring.

CA7-30 through 85 contactors are designed with two power terminals for all three poles. This simplifies power wiring of interconnected contactors in reversing, reduced voltage and two-speed applications. Simplified wiring means less labor and less cost.

Sprecher + Schuh contactors are also available with electronic DC coil for direct control from a PLC.

The electronic DC coil has low power consumption designed to control electric motors and other loads and is especially alligned to the specific requirement of electronic control circuits. The low power consumption of 1.7 allows direct control through PLCs without the need for interposing relays. Power dissipation is greatly reduced limiting the heat effect in control panels.

Series CA6 Contactors up to 700 HP. The modern contactor for demanding applications

Sprecher + Schuh's CA6 contactor line combines the simple function of our popular CA7 contactor series with the rugged performance demanded in this middle horsepower range. On average these contactors are 50% smaller than traditional contactors in this size class.

A broad selection for middle horsepower applications

The CA6 contactor family consists of a wide range of amperages in several frame sizes. This line is ideally suited for demanding applications such as steel mills, rock quarries, mines or for any middle horsepower application where a sturdy, durable contactor is needed.

Built in Safety Features

The CA6 contactor series has a built in safety feature that disengages the coil contacts and locks them in place when the contactor cover is opened for inspection. Conversely, when the contactor is energized, the cover cannot be removed. This feature ensures the current carrying components are power free during maintenance or replacement operations. Contact replacements can be installed quickly and safely, extending the life of the contactor.

Rugged and reliable

CA6 contactors conform to UL508, as well as IEC 947 and can be operated at rated voltages up to 600V (UL) and 1000V (IEC). High thermal and switching capacities guarantee reliable operation and long life. CA6 contactors are listed in CSA Certified Elevator Equipment for heavy duty use in elevators, refrigerators and heating installations in Canada.

Arc quenching extends contact life

All CA6 contactors are designed with sophisticated arc quenching techniques that extinguish damaging breaking arcs quickly.

Electronic coils offer many advantages

Behind the attractive outward appearance of the CA6 contactor are advanced engineering solutions that offer convenience and savings. The CA6-115-EI through 420-EI incorporate an electronically controlled coil that reduces pick-up currents by 60% on average. Holding current is also reduced. The CA6 electronic coil also permits direct connection to a PLC.

Reversible coil provides total flexibility

When shipped, both coil connections are normally located at the top of the contactor in preparation for mounting an overload relay at the bottom. For multi-starter panels, however, the coil can be reversed. CA7 contactors can either be ordered with the coil reversed or may be easily reversed in the field.

CT7N Bimetallic Thermal Overload Relays

Ensure reliable protection with current-limiting calibration & ambient temperature compensation.

Sprecher + Schuh has always paid particular attention to the subject of motor protection. This concern is reflected in our CT line of thermal overload relays that include many standard features not available with traditional overload protection devices. And, CT7N overload relays are designed to mount directly to the load side of Sprecher + Schuh CA7 Contactors.

Consistent and reliable protection

The consistent high quality of Sprecher + Schuh thermal overload relays is ensured by a complex current calibration procedure performed after each unit is at full operating temperature. Calibration is performed at the largest and smallest current the overload can handle. The accurate time/current characteristic curve obtained in this manner guarantees reliable motor protection every time.

Superior Class 10 characteristics

Today's T-Frame motors have less copper and iron that the old U-Frame motors that were popular when traditional Class 20 overload relays were designed. For this reason, faster Class 10 overloads like the CT Series have been recognized by many motor manufacturers as the ideal type to assure optimum protection of "T" frame motors.

Protection from single phase conditions

A unique feature not found in traditional thermal overload relays provides accelerated tripping under single phase conditions. This is accomplished with a special "differential tripping" mechanism built into CT7N.


Electram featured Lovato electric motor controls in all phase converters, motor control panels, or Motor Control Centers manufactured or assembled in our Edmonton CSA / C US certified facility prior to 2007, and currently maintains stock of those same replacement components.

3 and 4 pole contactors and
definite purpose contactors

Lovato Star/Delta starting, reduced voltage starting, multi-speed, and all combination type (breaker or fusible) magnetic starters are stocked by Electram for reversing, and non-reversing applications.

A wide range of starters, contactors, switches, joysticks and overload relays rated from fractional horsepower up to 400 HP at 600v, is complimented by the industry's most versatile snap-on auxiliary components and accessories.

Lovato full-voltage
magnetic starter

And if you're looking for grain handling or multi-motor control panels - (are you ever in the right place!), Electram will custom build a control center which includes the Main disconnect, combination type (breaker or fusible) magnetic starters complete with Stop/Start or Hand/Off/Auto selectors, illuminated pilot lights for each device, and timed or interlocking control circuits for any grain handling system.

One of the main features of Lovato contactors is their higher Breaking Capacity as compared to many other contactor makes. The high breaking capacity of Lovato makes these products considerably more durable than most other IEC contactors.

We also carry Pendant Stations - (both thermoplastic and aluminum), limit switches, joysticks, surge suppressers (or surge arresters), rotary cam switches, inductive proximity sensors, capacitive proximity sensors, generator bypass switches (or line transfer switches), and a full line of control devices.

Whether its phase converters, magnetic starters, multi-motor control centers, or any type of electric motor controls, - Power in, Power out, and Power Up with Electram Rotary Equipment Ltd.

Motor Protection Circuit Breakers

  • Wide adjustment range 0.1 to 100A.
  • Breaking capacity to 50kA (400V) up to 100A.
  • Suitable for isolation.
  • Comprehensive line of accessories.
  • Front mount contacts without increasing external dimensions.
  • Automatic trip indicators.
  • High reliability and accuracy of tripping.

Switch Disconnects

  • 16 to 125A ratings.
  • Versions: door interlock, direct operating handle, door mounting and in enclosure.
  • Add-on fourth pole.
  • Snap-on auxiliary contacts, earth pole and neutral terminal.
  • Modular and compact size.

Contactors

  • Three-pole versions up to 630A for AC3 duty.
  • Four-pole versions up to 1600A for AC1 duty.
  • Special versions with 2NO+2NC or 4NC main poles.
  • Special versions for power factor correction.
  • Versions with AC/DC control coil.
  • Extensive choice of add-on blocks and accessories.
  • Approved by primary international authorities.

Motor Protection Relays

  • Thermal overload relays for currents between 0.09 and 420A.
  • Special versions available for motors with overly long starting cycles.
  • Phase failure sensitive and non-phase failure sensitive versions.
  • Automatic or manual reset.
  • Independent or direct mounting on contactor.
  • Thermistor protection relay.

Metal Joysticks (22mm)

  • 2 directions
  • 4 directions
  • 2 directions with mechanical interlock
  • 4 directions with mechanical interlock
  • Complete with auxiliary contacts

Joystick
without
Interlock

Joystick
with
Interlock