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Thermal Overload Relay LR2-D13 (17–25A) – Motor Protection Relay with 1NO/1NC, IEC Rated, DIN Rail Mount

Shopcorp Thermal Overload Relay LR2-D33 (17-25A) - Motor Protection Relay with 1NO/1NC, IEC Rated

4.6
Rated 4.6 out of 5 stars
12 Reviews
$26.99 - $26.99
$26.99
$26.99 - $26.99
$26.99

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Technical Specifications

- Model: LR2-D33
- Type: Thermal Overload Relay
- Amp Range: 17–25A
- Auxiliary Contacts: 1NO + 1NC
- Rated Voltage: Up to 660V AC
- Protection Type: Overload & phase-failure protection
- Compensation: Thermal and temperature compensation
- Reset Options: Manual / Automatic
- Compatibility: LC1D40 through LC1D95
- Dimensions: Approx. 119 × 56 × 71 mm
- Housing: Industrial-grade, heat-resistant materials
- Mechanical Life: Long service endurance for continuous duty
- Wiring: Screw terminals for secure wiring
- Certifications: IEC 60947-4-1
- Applications: HVAC compressors, pumps, fans, conveyors, industrial motors, automation systems

About the Product

Overview – Industrial Motor Protection for HVAC & Automation
The Shopcorp LR2-D33 Thermal Overload Relay (17–25A) provides precise overload, overheating, and phase-failure protection for HVAC equipment, industrial motors, and automation systems. Designed for seamless integration with LC1-D contactors, this relay ensures stable switching and dependable long-term operation.

High-Capacity Overload Protection for Heavy Loads
Engineered for motors operating within the 17–25A range, this overload relay delivers reliable protection in applications such as compressors, pumps, fans, conveyors, and industrial machinery. Its thermal and temperature-compensated design ensures accurate trip response even under fluctuating environment conditions.

Compact & Ready for Easy Installation
With a compact 119 × 56 × 71 mm footprint. The 1NO + 1NC auxiliary contacts provide accurate feedback for automation circuits, interlocks, and safety systems.

Built to IEC Standards for Industrial Reliability
Constructed from high-grade materials and compliant with IEC safety standards, this overload relay delivers strong mechanical endurance and stable electrical performance for demanding motor control environments.

Download General Data Sheet (PDF)

See All Contactors Cut Sheets

SKU B0G26RTWDP

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4.6
Rated 4.6 out of 5 stars
Based on 12 reviews
100%would recommend this product
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12 reviews
  • Sebastian A.
    I recommend this product
    Rated 4 out of 5 stars
    5 months ago
    IEC Compliance You Can Trust

    For industrial installations, IEC *****-4-1 compliance matters. This relay meets the standard and performs like a professional-grade device. It integrates seamlessly with LC1D40-LC1D95 contactors and provides reliable overload and phase-failure protection. I would confidently install this in any heavy-duty motor control setup.

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  • Antonella Z.
    I recommend this product
    Rated 5 out of 5 stars
    6 months ago
    Accurate Trip Settings and Smooth Reset

    What stands out most is how precise the adjustment dial is. Setting it within the 17-25A range was easy and clear. The manual and automatic reset options are very convenient depending on application needs. Ive used it in a refrigeration system, and its been stable with no nuisance trips.

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  • Leonardo V.
    I recommend this product
    Rated 4 out of 5 stars
    6 months ago
    Professional-Grade Industrial Component

    You can tell this unit is built for serious industrial work. The housing feels durable and heat-resistant, and the size fits nicely inside control cabinets without wasting space. I tested the overload function before commissioning, and the relay tripped precisely within the set range. Great protection for pumps and conveyors.

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  • Nicolas A.
    I recommend this product
    Rated 5 out of 5 stars
    7 months ago
    Reliable and Easy to Integrate

    This overload relay was a straightforward addition to a motor starter assembly. The screw terminals hold firmly, and the 1NO/1NC auxiliary contacts make it easy to integrate into safety and alarm circuits. I appreciate the thermal compensation feature, it gives peace of mind in environments where temperature fluctuates.

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  • Daniela F.
    I recommend this product
    Rated 5 out of 5 stars
    7 months ago
    Solid Protection for Larger Motor Loads

    I installed this LR2-D33 on a 20A compressor motor in an HVAC panel, and it performs exactly as expected. The adjustable 17-25A range makes fine tuning simple and accurate. It mounts cleanly to LC1D contactors and feels very solid once installed. Trip response is consistent and dependable, exactly what you want in motor protection.

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