Find low cost quality industrial motor components, motor wiring and cables, a range of power supply sizes, soft starter and pump panel options, contactors, motor control relays, pushbutton switches, and signalling lights, bells and buzzers.

Electric Motor Supplies - Components and Accessories

Electric Motor Components:
Electric Motor Accessories:  

Electric motors convert electricity into mechanical energy and are used to power several kinds of devices, including running fans, power tools, home appliances, industrial equipment, and more. They are powered by either direct current (DC) sources, such as batteries, or by alternating current (AC) sources, such as electrical generators. There are many electric motor components, including power supplies, relays, contactors, terminal boxes, signaling devices like a bell, and more.

These motor supplies must meet certain standards and requirements per the International Electrotechnical Commission (IEC) and the National Electrical Manufacturers Association (NEMA). Elliott Electric Supply offers a variety of electric motors that meet national and international standards as well accessories and add-on's for electric motors.

Power Supply (for Electric Motors)

electric contactors for high voltage motor control

A power supply is a device that provides electrical energy to a motor, set to load with an appropriate amount of current. A power supply can be equipped to shut off the current in the event of fault as well as supplying the initial startup flow. For ac motors, a power supply may conduct power factor correction, which results in greater motor efficiency.

Power supplies can be categorized by their functions, packaging, and method of conversion. Different power supplies are used between DC motors and AC motors in addition to programmable power supplies, uninterruptible power supplies, high-voltage power supplies, and bipolar power supplies, which generate both positive and negative currents.
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Motor Starter

Motor Starters, controls for Electric Motors

An electrical motor starter controls electrical power to equipment by starting, stopping, reversing, and accelerating the current that runs through it. Most starters additionally function as protection from short-circuits and overloads as well as when disconnecting the motor from a power supply. Motor starters have ratings based on their continuous and thermal current, power, and voltage. A DC motor will have different ratings to AC motors, but all must adhere to industry regulations.

Elliott Electric Supply offers a wide variety of starters that abide by IEC and NEMA standards. Shop Elliott Electric Supply's full selection of starters today.
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Soft Starter

soft starters for industrial motors and other electric motor types

A soft start device is used in AC motors and limits the electrical current upon startup. Soft starters are used when an electric motor needs a 'gentle' start, typically for conveyors and gears among other systems. When current control is needed only for startup, a soft start device is a money and space-saving option.
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Contactor

electric contactors for high voltage motor control

An electric contactor can be used to start and stop dc motors and ac motors; however, combination motors use only contactors as starters. Contactors are designed to activate high-voltage motors using rapid opening and closing mechanics that control and suppress a starting current. There are many contactor options dependent on your motor needs and they should meet IEC standards.
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Push Button Switch

pushbutton switch for electric motor control

A push button switch starts and stops the electrical circuit within a motor. A push button switch is best used in low-voltage devices. These can be momentary or maintained switches with a lever that, when depressed, starts/stops a current flow. The two most common types are a 'push to make' switch, which allows a current to flow when activated, and a 'push to break' switch, which stops the flow when activated.
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Pump Panel

Pump Panel for motor pump protection and active monitoring

A motor pump uses mechanical energy to move current through an electric motor, while a pump panel is composed of electrical devices to keep the pump running. A motor pump may include motor pump overloads, which protect the motor when the pump reaches current capacity, as well as multiple sensors to detect temperature, pressure, and other user-specified levels. A pump and pump panel save on maintenance costs due to this active monitoring.
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Circuit Breaker (and DIN Rail Mini Breaker)

Circuit Breaker for electric motor power distribution

A circuit breaker is a switch that shields an electrical circuit from overload and/or short circuit. Once protective supplies (e.g. a protective relay) detect fault within a current, the circuit breaker will interrupt the flow so little to no damage is caused. They come with metal or molded-insulated frames, at least one toggle switch for opening and closing the current, a trip unit, and an arc extinguisher. Additionally, circuit breakers can have protective features like a ground fault.

A DIN rail miniature breaker is often used with motor control devices, mounted on DIN rails. These mini breakers are low-profile, mountable, and commonly used in industrial applications.
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Relays (Overload, Timing, Alternating)

Electric Motor Relay

A relay is used to control an electrical circuit with low-power control signals. A relay can be used to detect overloads and short-circuits among other faults. There are many types of relay, including latching relay, alternating relay, and delay relay or timing relay. Relay mounting types include DIN rail mount and socket mount. We also stock a full line of voltage monitors, including 3 phase voltage monitor options.

Timing relays (shown below) come in these various types:

  • On-Delay Relay: controls circuit activation by delaying initial current flow
  • Off-Delay Relay: opens or closes a circuit once power is shutoff
  • One Shot Relay: activates a circuit after a designated amount of time has passed
  • Interval Relay: controls the time an electrical load has power
  • Recycle Relay: controls an electrical load's on/off cycle

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Overload Relay

Shop Overload Relay for motor overload and overcurrent protection

An overload protection relay safeguards an electric motor from overload or overcurrent damage. A overload relay protects a motor from overheating by halting the current flow with restart delay options.

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Timing Relay

Timing relay for electric motor control

A timing relay has a function that will delay current-flow once switched on. There are multiple types of timing relay. Elliott Electric Supply offers on/off delay, one shot, interval, and recycle relay types.

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Alternating Relay

Find a alternating relay for motor control

An alternating relay, in contrast to a latching relay, requires a control switch and continuous power. An alternating relay is used to equalize run times or to run multiple loads at the same time.

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Electric Motor Terminal Blocks - Single Feed, Dual Level, Power Distribution, Grounding, etc.

Din Rail Terminal Block

DIN Rail Terminal Block

A terminal block holds two or more wires together and can be used to secure circuits by connecting wires to switches. Additionally, a terminal block may also be used to complete, or terminate, a circuit. Often, terminal blocks will require a DIN rail for mounting. They are categorized by structure and type, including:

  • Sensor Block or Actuator Block: used for a device with three-or-more wires
  • Disconnect Block or Switch Block: used to terminate a circuit without removing the wiring

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Single Feed Terminal Block

Single feed terminal block with one contact level for use with electric motors and equipment

A single feed terminal block is used for the connection of two wires with one contact level.

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Dual Level Terminal Block

Dual level terminal block with two levels of contact for electric motors and equipment terminals

A dual level terminal block is similar to the single feed except with two levels of contacts.

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Terminal Strip

Single feed terminal block with one contact level for use with electric motors and equipment

A terminal strip is a device that connects wires to a panel or junction box.

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Fuse Holder

fuse holder

A fuse holder terminal block connects multiple fuses with multiple devices.

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Power Distribution Block

Power Distribution Block

A power distribution terminal block, or power distribution box, is used to 'terminate' cables and wires.

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Ground Clamp (Ground Circuit Terminal Block)

Ground Clamp or Ground Circuit Terminal Block

A ground circuit terminal block, or ground clamp, is used to ground electrical circuits.

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Disconnect Terminal Block

Disconnect Terminal Block

A disconnect terminal block, or switch block, is used to safely disconnect a circuit on a terminal without removing wiring.

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Industrial Motor Controls - PLC & HMI Interface, Controller Hardware

Programmable Logic Controllers (PLC)

PLC or Programmable Logic Controller for electric motors

A programmable logic controller (PLC) is an industrial computer that controls an electric motor's full process by monitoring its input and output devices. PLC programming is reliable, time effective, and money-saving. Additionally, PLC programming is dependent on user needs and may require multiple components, like a pushbutton switch, a DC motor, or multiple AC motors. A programmable logic controller is also an alternative to hard-wired relay systems.
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HMI - Human Machine Interface

HMI - Human-Machine Interface

Human-Machine Interfaces (HMI) are used in conjunction with PLCs. The HMI is a program set up on a monitor that connects the user directly to the programmable logic controller and thus the electric motor. Some PLCs come with a built-in screen for hmi while others may require separate purchase.
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Motor Accessories - Rails, Enclosures, Signals

Electric motors can be paired with additional equipment and accessories. Below are some common add-on parts for use with electric motors.

DIN Rail

DIN Rail Mount for motor control devices

A DIN rail is used to mount control devices within an equipment rack. A DIN rail can hold circuit breakers, terminal blocks, programmable logic controllers, relays, and more. DIN rails offer easy installation of electric motor supplies and simplify the design of a space.
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Enclosure (Fully Enclosed or Partial)

Electric Motor Enclosure - full or open enclosures for motors

An enclosure protects an electric motor from any outside threats, including humidity, heat, and mechanical damage. A motor enclosure can be partially open or completely sealed depending on user need. Elliott Electric supply offers a wide range of options – shop all enclosures today.

Some enclosure types include:

  • Open Drip Proof: an open or partially-opened enclosure that cools the motor with outside air ventilation
  • Totally Enclosed Nonventilated (TENV): an enclosure that entirely conceals the motor and limits air current from the outside to the inside
  • Totally Enclosed Fan-Cooled (TEFC): an enclosure similar to TENV except for an external fan attached opposite the drive end of the motor that circulates the air within
  • Explosion Proof (XP): an enclosure similar to TEFC except designed specifically to contain an explosion within it

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NEMA Enclosure

NEMA outdoor or indoor motor enclosure

There are many motor enclosure options to choose from, including motor enclosures built with different NEMA environmental standards and outdoor ratings. Elliott Electric Supply offers NEMA enclosure models that meet the demands of industry standards for various environments, indoor and outdoor, including NEMA 3, 3R, 3RX, NEMA 4, 4x, and NEMA 12 enclosures.
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Beacon Light Signal (Alert Light / Signal Light)

Beacon Light Signal for Electric Motor Equipment

A beacon light is used to signal an alert or warning indicator when electric motor equipment monitors detect an issue. A beacon light can come in a variety of colors like amber, red, green, and blue. Styles and configurations include stackable "stacklight" modules with color lens, flashing strobe lights, and rotating beacon lights for indoor or outdoor use in industrial, commercial, and other applications. Beacon light signal products can be programmed for different alerts and status indicators. Some beacon signal light models include a combination bell, buzzer, siren, horn, or annunciator for pre-programmed vocal emergency alert announcements.
Shop Beacon Light Signals

Bell, Buzzer, Siren, Horn (Auditory Indicator Alert Signal)

Find a motor sound signal like a bell, buzzer, siren, horn or alert annunciator

An electric motor bell signals to a user a specified alert. A bell can indicate when current begins to flow through a circuit, when it is shut off, or when overload occurs. As a bell is an auditory indicator, it is often a top choice for signaling as some electric motors may not be visible. Audible motor alert signal and indicator options include bells, buzzers, sirens, horns, and annunciators for preset spoken emergency alert announcements.
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See Our Other Guides for Motors:
Learn About Our Other Electrical Supplies:

Warning: When using this information to perform electrical work, call a licensed electrician or consult the NEC® for safety. All licensed electricians have passed examinations covering the National Electric Code®, know state and local building codes, and may carry insurance to cover damages.