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SCHNEIDER Overload Relay: Thermal Protection, 3 Poles, 1NO/1NC - IEC Thermal Overload Relays
SCHNEIDERIEC Thermal Overload Relays

SCHNEIDER Overload Relay: Thermal Protection, 3 Poles, 1NO/1NC

The SCHNEIDER Overload Relay: Thermal Protection (MPN LR3D332) is an IEC thermal overload relay with integrated bimetallic elements, requiring no external thermal units. It features a 1NO/1NC auxiliary contact form…

SKU 3G-OTH-41479

Brand
SCHNEIDER
Item
Overload Relay: Thermal Protection, 3 Poles, 1NO/1NC
Category
IEC Thermal Overload Relays
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Technical Specifications

SCHNEIDER
Manufacturer Part Number
LR3D332
Type
1NO/1NC, TeSys Deca (80 to 95 Amp Models)
Poles
3
Compatible Contactors
TeSys Deca (80 to 95 Amp Models)
Auxiliary Contact Form
1NO/1NC
Maximum Voltage Rating
690V AC
Phase Loss Sensitivity
No
Thermal Units Required
None (Relay Includes Integrated Bimetallic Elements)
Terminal Connection Type
Screw Clamp Terminals
Compatible Contactor Series
TeSys Deca
View Full Spec Sheet

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SCHNEIDER Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SCHNEIDER Overload Relay: Thermal Protection (MPN LR3D332) is an IEC thermal overload relay with integrated bimetallic elements, requiring no external thermal units. It features a 1NO/1NC auxiliary contact form, screw clamp terminals, and a maximum voltage rating of 690V AC. This relay is compatible with TeSys Deca contactors in the 80 to 95 Amp models and does not include phase loss sensitivity.

Frequently Asked Questions

What is the SCHNEIDER LR3D332 overload relay used for?

The SCHNEIDER LR3D332 is an IEC thermal overload relay used to protect motors from overheating due to overload or phase imbalance. It is designed for industrial applications and integrates directly with TeSys Deca contactors in the 80 to 95 Amp range, providing reliable thermal protection without external thermal units.

What are the specifications of the SCHNEIDER LR3D332 overload relay?

The SCHNEIDER LR3D332 features a 1NO/1NC auxiliary contact form, screw clamp terminals, and a maximum voltage rating of 690V AC. It includes integrated bimetallic elements, requires no external thermal units, and is compatible with TeSys Deca contactors for 80 to 95 Amp models. It does not include phase loss sensitivity.

Where to buy the SCHNEIDER LR3D332 overload relay worldwide?

You can source the SCHNEIDER LR3D332 overload relay through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine SCHNEIDER components for your motor protection needs.

How to install the SCHNEIDER LR3D332 overload relay?

To install the SCHNEIDER LR3D332, first ensure the contactor is de-energized. Mount the relay directly onto a compatible TeSys Deca contactor (80 to 95 Amp models) using the screw clamp terminals. Set the current adjustment dial to match the motor full-load current. Verify wiring connections and test operation before energizing the system.

Used in

Common applications for SCHNEIDER
Motor starting in conveyor systems — Schneider Altistart ATS 22 soft starters (e.g., ATS22D17S6U) reduce inrush current.
Speed control for industrial pumps — Schneider Altivar ATV320 VFDs (e.g., ATV320U55N4W) provide variable flow regulation.
Machine safety interlocking — Schneider XPSUAF13AP safety relays monitor emergency stop circuits on assembly lines.
Panel-mounted control stations — Schneider XB5 flush push buttons (ZB5AA5) serve as start/stop operators in MCCs.
Heavy-duty motor switching — Schneider LC1G150LSEA contactors handle 150 A loads in compressor and crusher applications.
Emergency stop actuation — Schneider 9001K mushroom-head push buttons (9001KR25R) provide red, momentary stop functions.

SCHNEIDER Products

3G Electric supplies SCHNEIDER iec thermal overload relays. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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