Electronic Overload Relay REO 4 - 18 - 90 A

About this product
Lauritz Knudsen Type REO electronic overload relays are current-transformer based electronic motor protection relays offering overload, single phasing, phase unbalance and locked rotor protection, with trip indication and selectable trip class 10A, 10, 20 or 30 as per IEC 60947-4-1. REO 1.1 mounts directly on MO 9-45 contactors; REO 4 is separately mounted for larger ratings. The G variants (REO 1.1G and REO 4G) add in-built earth fault protection. Conforms to IS/IEC 60947-4-1 and IEC 60947-4-1.
Lauritz Knudsen
CS90418OOUOPurchase information
HSN 85364900 · GST 18% · price excludes GST
Product Details
| Field | Value |
|---|---|
| Product Name | Electronic Overload Relay REO 4 - 18 - 90 A |
| Brand | Lauritz Knudsen |
| Catalogue / Part Number | CS90418OOUO |
| SKU | SKYLK324 |
| Product Type | Electronic Overload Relay |
| Description | Electronic Overload Relay, REO 4 series, relay setting range 18 - 90 A. Separate mounting. Standard packing 1 no. Catalogue number CS90418OOUO. Conforms to IS/IEC 60947-4-1 and IEC 60947-4-1. Without earth fault protection. Selectable trip class 10A, 10, 20 or 30. Protections: overload, single phasing, phase unbalance, locked rotor. |
| MRP | ₹31,220 |
| Selling Price | ₹31,220 |
| Discount | - |
| GST Rate | 18% |
| HSN Code | 85364900 |
| Currency | INR |
| Availability | In Stock |
| Quantity Available | 5 nos |
| Field | Value |
|---|---|
| Min Order Quantity | 1 nos |
| Location | Bommanahalli |
| Input | - |
| Output | - |
| Range | 18 - 90 A |
| Parameters | REO 4 series, separate mounting, IS/IEC 60947-4-1 and IEC 60947-4-1, without earth fault protection, selectable trip class 10A, 10, 20 or 30, protections: overload, single phasing, phase unbalance, locked rotor |
| Supply | - |
| Breaking Capacity | - |
| Price List Specification | - |
| Weight | 1.4 kg |
| Volumetric Weight | 1.267 kg |
| Dimensions (L × W × H) | 22 × 18 × 16 cm |
| Datasheet | - |
| Drawing / CAD | - |
The Lauritz Knudsen CS90418OOUO is an electronic overload relay with an adjustable setting range of 18–90A. It protects motors against overload when used with a matching contactor.
Choose the Lauritz Knudsen CS90418OOUO when your motor's full load current falls within 18–90A — or, in a star-delta starter with the relay in the winding circuit, when 0.58 × the full load current does. Setting the relay to the motor's nameplate current protects the winding from sustained overload.
Overload relays are used with contactors in motor starters, such as DOL and reversing starters, to protect motors against sustained overload.
Set the relay to the full load current shown on the motor nameplate, and make sure that value lies inside the relay's adjustable range. Choose a trip class that suits the motor's starting time. In a star-delta starter the setting depends on where the relay is connected, so follow the starter's wiring diagram.
Yes, the Lauritz Knudsen CS90418OOUO (Electronic Overload Relay REO 4 - 18 - 90 A) is listed on VendorStocks. Add it to your cart and choose “Continue to Buy”, or contact VendorStocks at +91 99021 83031 or support@skylightsenergy.in for a quotation, bulk quantities and delivery to your site in India.
You can buy Lauritz Knudsen overload relays online on VendorStocks, the B2B electrical marketplace from Skylights Energy, Bangalore. The VendorStocks team can help with ordering the overload relay with a matching contactor.
Yes, VendorStocks takes bulk and project-quantity orders for the Lauritz Knudsen CS90418OOUO. Contact VendorStocks at +91 99021 83031 or support@skylightsenergy.in with your required quantity for a quotation on the full quantity and delivery to your site or panel manufacturing unit.
Yes. Contact VendorStocks at +91 99021 83031 or support@skylightsenergy.in with your quantity for a formal quotation on the Lauritz Knudsen CS90418OOUO, or add it to your cart and choose “Continue to Buy” to order directly. For a project with several items, email your BOM (Bill of Materials) to support@skylightsenergy.in for a single consolidated quote.
Yes, you can request the Lauritz Knudsen datasheet for the CS90418OOUO from VendorStocks at +91 99021 83031 or support@skylightsenergy.in.
Online payments on VendorStocks are processed securely through Razorpay. The payment options available for your order are shown at checkout.
The Lauritz Knudsen CS90418OOUO specifications are: Setting range: 18–90 A; Type: electronic. For anything not listed here, request the Lauritz Knudsen datasheet from VendorStocks at +91 99021 83031 or support@skylightsenergy.in.
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