SCHNEIDER Overload Relay: Thermal Protection, 3 Poles, 1NO/1NC, Phase Loss Sensitivity
The SCHNEIDER Overload Relay: Thermal Protection (SKU 3G-OTH-42121, MPN LRD3357) is an IEC thermal overload relay with integrated bimetallic elements, eliminating the need for separate thermal units. It features a…
SKU 3G-OTH-42121
Also listed as: LRD 3357 · LRD-3357
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The SCHNEIDER Overload Relay: Thermal Protection (SKU 3G-OTH-42121, MPN LRD3357) is an IEC thermal overload relay with integrated bimetallic elements, eliminating the need for separate thermal units. It features a 1NO/1NC auxiliary contact form, phase loss sensitivity, and a maximum voltage rating of 1000V AC. Designed for use with TeSys Deca contactors (80 to 95 Amp models), it connects via screw clamp terminals.
Frequently Asked Questions
What is the SCHNEIDER LRD3357 overload relay used for?
The SCHNEIDER LRD3357 is an IEC thermal overload relay that protects motors from overheating and phase loss. It is used with TeSys Deca contactors (80 to 95 Amp models) in industrial motor control applications, providing integrated bimetallic elements for thermal protection.
What are the specifications of the SCHNEIDER LRD3357 overload relay?
The SCHNEIDER LRD3357 has a current range of 37 A to 50 A, a maximum voltage rating of 1000V AC, and a 1NO/1NC auxiliary contact form. It includes phase loss sensitivity, integrated bimetallic elements, and screw clamp terminals. It is compatible with TeSys Deca contactors.
Where to buy the SCHNEIDER LRD3357 overload relay worldwide?
You can source the SCHNEIDER LRD3357 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.
How to install the SCHNEIDER LRD3357 overload relay?
Mount the SCHNEIDER LRD3357 directly onto a compatible TeSys Deca contactor (80 to 95 Amp models). Connect power and motor wires to the screw clamp terminals, ensuring proper torque. Set the current dial between 37 A and 50 A. No separate thermal units are needed.
Used in
Common applications for SCHNEIDERSCHNEIDER 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.
