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Thermal Overload Relay

Thermal Overload Relay LR2-D33 (23–32A) – Motor Protection Relay with 1NO/1NC, IEC Rated, DIN Rail Mount
Thermal Overload Relay LR2-D33 (23–32A) – Motor Protection Relay with 1NO/1NC, IEC Rated, DIN Rail Mount
$21.99 - $21.99
$21.99
$21.99 - $21.99
$21.99

Shopcorp Thermal Overload Relay LR2-D33 (23-32A) - Motor Protection Relay with 1NO/1NC, IEC Rated, DIN Rail Mount

In stock
Rated 4.5 out of 5
Based on 8 reviews

Thermal Overload Relay LR2-D33 (23–32A) – Motor Protection Relay with 1NO/1NC, IEC Rated, DIN Rail Mount   Overview – Heavy-Duty Overload Protectio...

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$21.99 - $21.99
$21.99
$21.99 - $21.99
$21.99
Thermal Overload Relay LR2-D13 (17–25A) – Motor Protection Relay with 1NO/1NC, IEC Rated, DIN Rail Mount
Thermal Overload Relay LR2-D13 (17–25A) – Motor Protection Relay with 1NO/1NC, IEC Rated, DIN Rail Mount
$17.65 - $17.65
$17.65
$17.65 - $17.65
$17.65

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

In stock
Rated 4.6 out of 5
Based on 7 reviews

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

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$17.65 - $17.65
$17.65
$17.65 - $17.65
$17.65
Thermal Overload Relay LR2-D13 (4–6A) – Motor Protection Relay with 1NO/1NC, IEC Rated, DIN Rail Mount
Thermal Overload Relay LR2-D13 (4–6A) – Motor Protection Relay with 1NO/1NC, IEC Rated, DIN Rail Mount
$17.65 - $17.65
$17.65
$17.65 - $17.65
$17.65

Shopcorp Thermal Overload Relay LR2-D13 (4-6A) - Motor Protection Relay with 1NO/1NC, IEC Rated, DIN Rail Mount

In stock
Rated 4.5 out of 5
Based on 8 reviews

Thermal Overload Relay LR2-D13 (4–6A) – Motor Protection Relay with 1NO/1NC, IEC Rated, DIN Rail Mount   Overview – Reliable Overload Protection fo...

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$17.65 - $17.65
$17.65
$17.65 - $17.65
$17.65
Thermal Overload Relay LR2-D13 (2.5–4A) – Motor Protection Relay with 1NO/1NC, IEC Rated, DIN Rail Mount
Thermal Overload Relay LR2-D13 (2.5–4A) – Motor Protection Relay with 1NO/1NC, IEC Rated, DIN Rail Mount
$17.65 - $17.65
$17.65
$17.65 - $17.65
$17.65

Shopcorp Thermal Overload Relay LR2-D13 (2.5-4A) - Motor Protection Relay with 1NO/1NC, IEC Rated, DIN Rail Mount

In stock
Rated 4.4 out of 5
Based on 9 reviews

Thermal Overload Relay LR2-D13 (2.5–4A) – Motor Protection Relay with 1NO/1NC, IEC Rated, DIN Rail Mount   Overview – Reliable Motor Protection for...

View full details
$17.65 - $17.65
$17.65
$17.65 - $17.65
$17.65

Explore our lineup of Shopcorp Thermal Overload Relays LR2 Series, designed for reliable motor protection across HVAC, industrial, and automation systems. These IEC-rated relays (2.5–4A, 4–6A, 17–25A, 23–32A) provide accurate overload and phase-failure protection, 1NO/1NC auxiliary contacts, and easy DIN rail installation. A durable, compact solution for pumps, compressors, fans, and control panels.

FAQ

What does a Thermal Overload Relay do, and when should I use one?

A thermal overload relay protects motors from overload, overheating, and phase failure by monitoring current and tripping when unsafe operating conditions occur.

All LR2-D13 and LR2-D23 models act as motor protection relays, making them ideal for compressors, pumps, fans, conveyors, HVAC units, and industrial machinery.

Use an overload relay whenever you need accurate, automatic protection for AC motors in HVAC, refrigeration, or automation systems.

What is the difference between the LR2-D13 and LR2-D23 overload relays?

Both series are IEC-rated overload relays with 1NO + 1NC auxiliary contacts and DIN rail mounting, but they differ in amp protection ranges:

  • LR2-D13: small to medium motors (2.5–4A, 4–6A, 17–25A).
  • LR2-D23: larger motors (23–32A).

All models integrate directly with LC1-D contactors, making them compatible with HVAC systems, industrial control panels, and automation equipment.

Can these overload relays be used in HVAC systems and automation panels?

Yes. All Shopcorp LR2-D overload relays are designed for HVAC applications, industrial motor protection, and automation circuits.

They are DIN-rail-mount relays compliant with IEC/EN 60947-4-1 standards, making them suitable for:

  • HVAC compressors
  • Heat pumps
  • Refrigeration motors
  • Pumps & fans
  • Conveyor motors
  • Industrial automation systems

Their thermal and temperature-compensated design ensures reliable trip performance in both commercial and industrial installations.

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