Motor Circuit Protectors

While our website showcases a large assortment of our products, it does not reflect the complete inventory of products currently available. For real-time availability and to ensure we can meet your specific needs, please contact our sales team at 1-800-328-1842. New products arrive daily and our knowledgeable staff are happy to assist you in locating the exact item(s) you need.

KAL3625030M Square D Motor Circuit Protector

Square D KAL3625030M Motor Circuit Protector; 250 amp, 600 volt, 3-pole. Used Electronically OK.
SKU: KAL3625030M
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KAL3625031M Square D Motor Circuit Protector

Square D KAL3625031M Motor Circuit Protector; 250 amp, 600 volt, 3-pole. Used Electronically OK.
SKU: KAL3625031M
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LAL3640028M Square D Motor Circuit Protector

Square D LAL3640028M Motor Circuit Protector; 400 amp, 600 volt, 3-pole. Used Electronically OK.
SKU: LAL3640028M
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LAL3640030M Square D Motor Circuit Protector

Square D LAL3640030M Motor Circuit Protector; 400 amp, 600 volt, 3-pole. Used Electronically OK.
SKU: LAL3640030M
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LAL3640031M Square D Motor Circuit Protector

Square D LAL3640031M Motor Circuit Protector; 400 amp, 600 volt, 3-pole. Used Electronically OK.
SKU: LAL3640031M
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LAL3640032M Square D Motor Circuit Protector

Square D LAL3640032M Motor Circuit Protector; 400 amp, 600 volt, 3-pole. Used Electronically OK.
SKU: LAL3640032M
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LAL3640035M Square D Motor Circuit Protector

Square D LAL3640035M Motor Circuit Protector; 400 amp, 600 volt, 3-pole. Used Electronically OK.
SKU: LAL3640035M
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LAL3640036M Square D Motor Circuit Protector

Square D LAL3640036M Motor Circuit Protector; 400 amp, 600 volt, 3-pole. Used Electronically OK.
SKU: LAL3640036M
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LXD63H600 ITE/Siemens Motor Circuit Protector

ITE/Siemens LXD63H600 Motor Circuit Protector; 600 amp, 600 volt, 3-pole. Used Electronically OK.
SKU: LXD63H600
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LXD63L600 ITE/Siemens Motor Circuit Protector

ITE/Siemens LXD63L600 Motor Circuit Protector; 600 amp, 600 volt, 3-pole. Used Electronically OK.
SKU: LXD63L600
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MXD63A800 ITE/Siemens Motor Circuit Protector

ITE/Siemens MXD63A800 Motor Circuit Protector; 800 amp, 600 volt, 3-pole. Used Electronically OK.
SKU: MXD63A800
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MXD63H800 ITE/Siemens Motor Circuit Protector

ITE/Siemens MXD63H800 Motor Circuit Protector; 800 amp, 600 volt, 3-pole. Used Electronically OK.
SKU: MXD63H800
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MXD63L800 ITE/Siemens Motor Circuit Protector

ITE/Siemens MXD63L800 Motor Circuit Protector; 800 amp, 600 volt, 3-pole. Used Electronically OK.
SKU: MXD63L800
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Used and Refurbished Motor Circuit Protectors

EMSCO has been specializing in used and refurbished motor circuit protector options for over 72 years. Need help identifying the motor circuit protectors you need to replace, use our website to find it.

WHY EMSCO for Electric Motor Circuit Protection?

Motor Circuit Protection Inventory Matching Your Specifications

You’ve got a wide selection of Electric Motor Circuit Protection products at your fingertips. That's what we offer – a full range of motor circuit protection with amperage and voltage to match or upgrade your existing gear, minimizing downtime and keeping your operations uninterrupted.

We believe in the power of choice. So you get Motor Circuit Protection that is new, reconditioned, or surplus that meets your budget without sacrificing quality.

Expert Guidance in Selecting Certified Motor Circuit Protection Products

Choosing the best Motor Circuit Protection should not be a difficult task. Our professionals will walk you through the procedure, taking into account your individual demands for amperage, voltage, and application restrictions.

And because quality counts, our electrical testing guarantees that every Motor Circuit Protection device meets the highest requirements, providing you with long-term peace of mind.

What to Consider when Selecting Circuit Protection

Application Requirements

To choose the best circuit protection, first understand your specific application requirements. Take into account the motor's type, load characteristics, and ambient circumstances. EMSCO inventory gives you thousands of motor circuit protection parts to meet your requirement and a reputation for on-time shipments.

Consider voltage, current ratings, motor and system specifications. If you’re not sure what you need, our product specialists guide you through the selection process to prevent overloads and guarantees reliable performance within your lineup.

Trip Characteristics

Moving on to trip characteristics. Evaluate the response time and sensitivity of the protection device. This evaluation ensures that the circuit protection aligns with your motor's operational characteristics, responding promptly to faults without causing unnecessary disruptions.

Integration with Control Systems:

Consider how the circuit protection integrates with your control systems. Compatibility and communication capabilities are important for seamless integration with your current motor control center. This allows for effective monitoring and control of motor protection, all customized to suit your specific system.

Availability and Lead Times:

Finally, factor in the availability of the selected products. That’s where EMSCO excels. Whether you're exploring new, refurbished, or surplus options, timely delivery minimizes downtime. If you can't find what you're looking for online, remember to give us a call; our inventory is dynamic, and it includes items not listed on the website.

Motor Protection Category

Motor Protection Subcategories

Circuit BreakersThermal Circuit Breakers, Magnetic Circuit Breakers, Thermal-Magnetic Circuit Breakers, Electronic Circuit Breakers
FusesCartridge Fuses, Blade Fuses, Resettable Fuses (PTC), Miniature Circuit Breaker (MCB) Fuses
Motor Overload ProtectionOverload Relays, Motor Protection Circuit Breakers, Solid-State Overload Protection
Surge Protection DevicesSurge Protectors, Surge Arrestors, Transient Voltage Suppressors (TVS)
Ground Fault ProtectionGround Fault Circuit Interrupters (GFCI), Ground Fault Relays, Ground Fault Protection Devices
Voltage Monitoring and ProtectionVoltage Relays, Under-Voltage Protection, Over-Voltage Protection
Control RelaysControl Relays for Start/Stop, Time Delay Relays, Latching Relays
Isolators and Disconnect SwitchesMotor Disconnect Switches, Isolating Switches, Load Break Switches
Monitoring and Control SystemsMotor Control Centers (MCC), Programmable Logic Controllers (PLC), Motor Management Systems
Enclosures and Enclosure AccessoriesNEMA-rated Enclosures, Weatherproof Enclosures, Thermal Management Devices (Fans, Heaters)
Communication and Networking DevicesMotor Protection Relays with Communication, Fieldbus Communication Modules, Ethernet-based Motor Control


9 Questions when selecting motor circuit protection based on power requirements

  1. What is the rated voltage of the motor?
  2. What is the full load current (FLC) of the motor?
  3. Is the motor a single-phase or three-phase motor?
  4. What is the motor's horsepower (HP) rating?
  5. What is the operating frequency of the motor?
  6. Does the motor have any specific starting requirements? (e.g., direct-on-line, star-delta)?
  7. What are the ambient temperature conditions where the motor operates?
  8. Are there any special environmental considerations, such as moisture or dust?
  9. What is the duty cycle or expected load profile of the motor (continuous, intermittent, variable)?

Over 50 types of Motor Circuit Protection in stock. Don’t see what you’re looking for online? Call Us or Chat. We’re always adding new inventory.