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  • LS UR-00 UR-02 Mechanical Interlock, LS Contactor Interlock Unit, UR-02 2 NC Contacts, Mechanical Safety Interlock for MC Contactors, Forward Reverse Contactor Interlock, Star Delta Interlock Module, LS MC Series Contactor Accessory, Contactor Simultaneous Operation Prevention, Industrial Control Safety Interlock, Automation Safety Component
  • LS UR-00 UR-02 Mechanical Interlock, LS Contactor Interlock Unit, UR-02 2 NC Contacts, Mechanical Safety Interlock for MC Contactors, Forward Reverse Contactor Interlock, Star Delta Interlock Module, LS MC Series Contactor Accessory, Contactor Simultaneous Operation Prevention, Industrial Control Safety Interlock, Automation Safety Component
  • LS UR-00 UR-02 Mechanical Interlock, LS Contactor Interlock Unit, UR-02 2 NC Contacts, Mechanical Safety Interlock for MC Contactors, Forward Reverse Contactor Interlock, Star Delta Interlock Module, LS MC Series Contactor Accessory, Contactor Simultaneous Operation Prevention, Industrial Control Safety Interlock, Automation Safety Component
  • Magnetic Contactor Auxiliary Intelock MC,LS UR-00 UR-02 Mechanical Interlock, LS Contactor Interlock Unit, UR-02 2 NC Contacts, Mechanical Safety Interlock for MC Contactors, Forward Reverse Contactor Interlock, Star Delta Interlock Module, LS MC Series Contactor Accessory, Contactor Simultaneous Operation Prevention, Industrial Control Safety Interlock, Automation Safety Component
  • Magnetic Contactor Auxiliary Intelock ,LS UR-00 UR-02 Mechanical Interlock, LS Contactor Interlock Unit, UR-02 2 NC Contacts, Mechanical Safety Interlock for MC Contactors, Forward Reverse Contactor Interlock, Star Delta Interlock Module, LS MC Series Contactor Accessory, Contactor Simultaneous Operation Prevention, Industrial Control Safety Interlock, Automation Safety ComponentMC
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electrical center b2c

LS UR Series Contactor Mechanical Interlock

$16.48 USD
$22.60 USD $16.48 USD
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LS UR Series Mechanical Interlock, UR-00, UR-02 with 2NC, LS contactor interlock, reversible motor control, positive-negative interlock, LS MC/GMC accessory

1.(Overview)


The LS Electric UR Series Mechanical Interlock Units are safety accessories designed for LS MC/GMC series contactors (MC-9B to MC-100A). These modules physically interlock two contactors to prevent simultaneous closing, which is essential for forward/reverse motor control, star-delta starting, and other applications where two contactors must never be energized at the same time. The UR-02 model includes 2 normally closed (NC) auxiliary contacts for additional electrical interlocking, while UR-00 provides basic mechanical interlocking.

2. Key Features)


  • Dual Safety Interlocking: Provides physical mechanical interlock to block the closing of one contactor if the other is already energized, eliminating the risk of short circuits.
  • UR-02 Enhanced Design: Includes 2 built-in normally closed (NC) auxiliary contacts, enabling combined mechanical and electrical interlocking for maximum safety in critical applications.
  • Seamless Compatibility: Specifically engineered to fit LS MC-9B through MC-100A contactors, ensuring perfect alignment and reliable operation without modifications.
  • Rugged Construction: Durable mechanical components ensure long-term reliability in high-cycle industrial environments, withstanding vibration and repeated operation.
  • IEC/GB Compliant: Meets safety standards for motor control and automation systems, reducing the risk of equipment damage and workplace hazards.
  • Easy Installation: Simple snap-on design for quick mounting to paired contactors, with clear alignment guides to ensure proper interlock function.

3. (Model Decoding)

Model Code Core Interpretation
UR-00 Basic mechanical interlock unit, no auxiliary contacts
UR-02 Mechanical interlock unit with 2 normally closed (NC) auxiliary contacts
Compatible Contactors LS MC/GMC series contactors (MC-9B ~ MC-100A)

4. (Applications)

  • Forward/reverse motor control circuits (to prevent simultaneous energization)
  • Star-delta motor starting systems
  • Reversing conveyor and crane control panels
  • Industrial machinery with dual contactor safety interlocks
  • Automation systems requiring redundant safety measures

DATA SHEET

Attribute Value
Brand LS Electric / LS 
Series UR Series Mechanical Interlock Unit
Product Type Contactor Mechanical Safety Interlock
Models UR-00 (Basic), UR-02 (with 2 NC Contacts)
Compatible Contactors LS MC/GMC Series (MC-9B ~ MC-100A)
Interlock Type Mechanical Interlock (UR-00); Mechanical + Electrical Interlock (UR-02)
Auxiliary Contacts (UR-02) 2 Normally Closed (NC) Contacts
Function Prevent Simultaneous Operation of Paired Contactors
Standards Compliance IEC 60947-4-1, GB 14048.4
Certifications CE, CCC, RoHS
Application Motor Control Interlocking, Forward/Reverse Control, Star-Delta Starting, Industrial Automation Safety

Care Instructions