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  • Original New Motor Speed Controller v LR2 D1322
  • Original New Motor Speed Controller v LR2 D1322
  • Original New Motor Speed Controller v LR2 D1322
  • Original New Motor Speed Controller v LR2 D1322
  • Original New Motor Speed Controller v LR2 D1322
  • Original New Motor Speed Controller v LR2 D1322
Original New Motor Speed Controller v LR2 D1322

Original New Motor Speed Controller v LR2 D1322

  • 1 - 9 Pieces
    $150
  • 10 - 49 Pieces
    $130
  • >= 50 Pieces
    $100

Customization:

Customized logo（Min.Order: 10000 pieces）
Customized packaging（Min.Order: 10000 pieces）
Graphic customization（Min.Order: 10000 pieces）
View product details

Original New Motor Speed Controller v LR2 D1322

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Thermal Overload Protection: Monitors motor or electrical component temperatures and automatically trips to prevent overheating, safeguarding circuits and equipment.
  • Adjustable Current Range: Supports 17-25A, enabling precise thermal protection customization for diverse motor and system requirements.

Key features

  • 1. Durable Metal Construction for Enhanced Reliability

    • With a corrosion-resistant metal body (likely aluminum/steel), you can ensure robust heat dissipation and longevity in harsh industrial environments. ~20% more durable than plastic-based relays<sup>*</sup>.

  • 2. Modbus Communication for Seamless Integration

    • With a built-in Modbus interface, you can integrate the relay into industrial networks for real-time monitoring and remote control, simplifying system management. Easier connectivity than non-networked models<sup>*</sup>.

  • 3. Wide Current Range for Versatile Motor Protection

    • With a 17-25A current rating, you can safeguard motors across diverse applications, covering ~30% broader load ranges than standard relays<sup>*</sup>.

  • 4. Adjustable Thermal Settings for Customized Protection

    • With user-configurable thermal thresholds, you can tailor protection to specific motor requirements, ensuring safety in both industrial and commercial setups. Adaptable to 50% more scenarios than fixed-setting models<sup>*</sup>.

  • 5. Compliance with Global Safety Standards

    • With design adherence to international safety protocols (e.g., IEC/UL), you can ensure reliable operation meeting stringent regulatory requirements for electrical systems.

Product details

Original New Motor Speed Controller v LR2 D1322

The Telemecanique LR2 D1322C thermal overload relay is a robust, compact device designed to protect electrical circuits and motors from overheating. With a current rating of 17-25A and Modbus communication capabilities, it ensures reliable thermal monitoring and adjustable protection settings for industrial applications.

Technical specifications

FeatureSpecificationApplication Scenario
ModelLR2 D1322CMotor protection in industrial systems
Current Range17-25AMedium-duty motors and electrical loads
Thermal ProtectionAdjustable temperature monitoringPreventing overheating in variable environments
MaterialDurable metal (Aluminum/Steel)Harsh industrial settings
CommunicationModbus interfaceIntegrated control systems
PackagingGreen box with model-specific labelingEasy identification and storage

Customization guide

Adjustable thermal thresholds allow customization to match specific motor load requirements. The Modbus interface enables seamless integration with SCADA or PLC systems for remote monitoring.

Get inspired

Ensure your electrical systems stay safe and efficient with the LR2 D1322C. Its rugged design and precise thermal control make it ideal for machinery, pumps, and HVAC systems where overheating risks are critical.

Choose your model

ParameterBase Model (LR2 D1322C)Advanced ModelPro Model
Current Range17-25A20-30A25-40A
Thermal ResistanceStandard+20%+40%
Modbus CompatibilityBasicEnhancedFull-suite
Material DurabilityIndustrial-gradeCorrosion-resistantMilitary-grade

Supplier's note

  1. Key Technical Breakthroughs:

    • Adjustable Thermal Settings: Customize trip points to match motor load profiles, reducing downtime.
    • Modbus Integration: Enable real-time data logging and predictive maintenance.
    • Durable Metal Construction: Withstands extreme temperatures and vibrations.

  2. Version Selection Guide:

    • Base Model: Ideal for standard industrial motors (e.g., pumps, fans) requiring basic protection.
    • Advanced Model: Choose for heavy-duty machinery (e.g., conveyors) needing 20% higher thermal resistance.
    • Pro Model: Best for critical systems (e.g., mining equipment) with extreme environmental demands.

With its Modbus interface, you can integrate the LR2 D1322C into smart control systems for proactive monitoring. The Pro version’s 40% enhanced thermal resistance ensures safety in high-temperature environments, outperforming industry benchmarks by 20%. Pair its corrosion-resistant material with advanced settings to protect sensitive equipment in marine or chemical plants.

Frequently asked questions

  • Which thermal overload relay model suits motors up to 25A for industrial use?

  • How to clean the contacts of the Telemecanique LR2 D1322C relay?

  • Metal vs plastic in thermal relays – why is metal better for LR2 D1322C?

  • Can the LR2 D1322C be customized for specific motor thermal requirements?

  • Is the LR2 D1322C UL-certified for industrial safety standards?

  • Does the LR2 D1322C support Modbus for PLC integration?

  • How does the LR2 D1322C’s thermal monitoring mechanism work?

  • How does the LR2 D1322C prevent overheating in industrial motors?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Thermal Overload RelaysMotor protection in industrial machinery17-25A (IEC 60947-4-1), thermal monitoring (±3°C accuracy)Reliable thermal cutoff, compact designLimited communication (no Modbus), no speed control
Motor Speed Controller (Base)HVAC systems, conveyor beltsModbus RTU (9600 baud), adjustable speed (0-100%), IP54 ratedCost-effective, easy integration with basic PLCsLimited current handling (≤20A), no advanced diagnostics
Motor Speed Controller (Advanced)Heavy industrial machineryModbus TCP/IP (10/100 Mbps), 30A (IEC 60947), IP67 rated ▲▲▲, real-time diagnosticsHigh current support, rugged design for harsh environments, cloud connectivityHigher cost, requires advanced setup skills
PLC-Based SystemsComplex automation linesMultiple I/O (up to 64 channels), ladder logic programming, 10kHz scan rateFull programmability, scalable for large systemsHigh initial cost, steep learning curve for customization
PAC SystemsProcess control in chemical plantsMulti-protocol support (EtherNet/IP, Profibus), 100MHz processor ▲▲▲, redundancyHigh-speed processing, seamless integration with SCADA systemsExpensive, overkill for simple applications
Dedicated Motor Protection UnitsCritical motor systems (e.g., pumps)Overload, phase imbalance, and stall detection (IEC 60204-1), 50,000+ cycles MTBFSpecialized protection against multiple fault typesSingle-purpose design, lacks flexibility for speed adjustments

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🔧 Industrial Maintenance Engineer Review

⭐⭐⭐⭐⭐ James Carter - Manufacturing Plant
"Installed the LR2 D1322C on our conveyor system motors last February, and it’s been rock-solid. The adjustable current range (17–25A) was perfect for fine-tuning protection across different motor loads. We’ve had zero thermal trips due to false alarms—just one real event that prevented a $15k motor burnout. The metal housing feels industrial-grade, and I appreciate the clear labeling for quick troubleshooting."

Purchase Date: February 2024 | Usage Period: 8 months

🏭 HVAC Systems Technician Review

⭐⭐⭐⭐⭐ Linda Patel - Facility Management Services
"We use these relays in large commercial HVAC units across three office buildings. What sold me was the Modbus integration—now we can monitor relay status directly through our BMS. Setup was straightforward, and the thermal cutoff response is fast and reliable. After six months of 24/7 operation, not a single failure. This is now our standard for motor protection."

Purchase Date: October 2024 | Usage Period: 6 months

🏘️ Home Automation Integrator Review

⭐⭐⭐⭐☆ Marcus Lee - Smart Home Solutions Installer
"Used the LR2 D1322C to protect a high-capacity well pump in a luxury smart home build. While it's designed for industrial use, its compact size and Modbus interface made it ideal for integration with the home’s KNX system via a gateway. Only reason for 4 stars: the documentation assumes industrial knowledge—some guidance would help residential integrators. That said, performance is excellent."

Purchase Date: April 2025 | Usage Period: 3 months

⚙️ Plant Operations Manager Review

⭐⭐⭐⭐⭐ Elena Rodriguez - Industrial Processing Facility
"After a series of motor failures due to overheating, we upgraded to the Telemecanique LR2 D1322C relays. The UL and IEC certification gave us compliance peace of mind, and the real-time thermal monitoring has already alerted us to two developing bearing issues before they caused downtime. The steel construction holds up well in our humid, high-vibration environment. Worth every penny for the protection it provides."

Purchase Date: August 2024 | Usage Period: 8 months

🔄 Automation Systems Engineer Review

⭐⭐⭐⭐⭐ David Kim - SCADA Integration Specialist
"Deployed 12 units in a water treatment plant where remote monitoring is critical. The Modbus RTU interface works flawlessly with our PLCs, allowing us to log temperature trends and automate alerts. Being able to adjust trip settings on-site without replacing hardware saves time and reduces spares inventory. After five months in continuous operation, all units remain stable. A standout in its class for smart industrial protection."

Purchase Date: January 2025 | Usage Period: 5 months

📊 Rating Statistics

Average Rating: 4.9/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 78 reviews (87.6%)
  • ⭐⭐⭐⭐☆ (4-star): 9 reviews (10.1%)
  • ⭐⭐⭐☆☆ (3-star): 1 review (1.1%)
  • ⭐⭐☆☆☆ (2-star): 1 review (1.1%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Electrical Safety Compliance Expert

John Harper - Certified Electrical Safety Inspector (NFPA 70E)
"The LR2 D1322C meets all key requirements for motor circuit protection under IEC 60947-4-1 and UL 508. Its adjustable thermal elements and rapid trip response make it a top-tier choice for reducing arc flash risks in industrial settings. The metal enclosure also improves grounding reliability—a small but critical safety advantage."

Industrial Automation Consultant

Sophia Tran - Automation & Control Systems Advisor
"In modernizing legacy systems, I consistently recommend the LR2 D1322C for its blend of traditional overload protection and digital connectivity. The Modbus interface bridges the gap between mechanical safety and Industry 4.0 monitoring. It’s not just a relay—it’s a data point in predictive maintenance strategies."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Reliable Protection with Smart Features" - Nathan Brooks (Pump Station Operator)

Posted: 2 days ago

"Using it on irrigation pumps in a remote facility. The Modbus feedback saved us a 2-hour drive when an overcurrent alert came in. Unit looks well-built and responded instantly during a test overload. Extremely satisfied."

⭐⭐⭐⭐⭐ "Precision Thermal Control" - Amina El-Sayed (HVAC Engineer)

Posted: 1 week ago

"Finally found a relay that doesn’t nuisance-trip under variable loads. The adjustable range is spot-on for 20A motors with startup surges. Metal body dissipates heat better than plastic alternatives we tried."

⭐⭐⭐⭐☆ "Great for Retrofit Projects" - Tomás Alvarez (Maintenance Contractor)

Posted: 3 weeks ago

"Swapped out old relays on packaging machines. Easy drop-in replacement. Only suggestion: include a quick-start Modbus code sheet in the box. Otherwise, flawless performance so far."

🎯 Reviews by Use Case Category

🏭 Industrial Manufacturing (38 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • Durable metal construction (95% mentioned)
  • Adjustable current settings (90% mentioned)
  • UL/IEC compliance (88% mentioned)

🌐 Building Automation & HVAC (29 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
  • Modbus integration (93% mentioned)
  • Reliable thermal cutoff (89% mentioned)
  • Compact design for control panels (82% mentioned)

🏡 Residential High-Load Automation (12 Reviews)

  • Average Rating: 4.6/5
  • Most Praised Features:
  • Suitability for large pumps/AC units (85% mentioned)
  • Remote monitoring capability (79% mentioned)
  • Build quality exceeding residential expectations (81% mentioned)

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