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Ohmite C300K3R1 Vitreous Enamel Power Resistor

Ohmite's 280 Series Corrib[®] resistors are heavy-duty units ideal for applications involving high currents at very low resistance values. These resistors are designed to withstand frequent start-stop cycles and are suitable for motor starting, dynamic braking, and other similar applications. Manufactured with corrugated resistive wire and a protective vitreous enamel coating, Corrib resistors offer improved durability and efficient cooling. RoHS compliant versions are available by adding an “E” suffix to the part number. The hollow-core design facilitates secure fastening to chassis surfaces.

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Part No:C300K3R1
Stock:0
Inv Date:06-02-2026
Price: N/A
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Part No:C300K3R1
Stock:0
Inv Date:06-01-2026
Price: Unit price: $44.81
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Part No:C300K3R1
Stock:0
Inv Date:06-01-2026
Price: Unit price: $22.2
Buy/RFQ:
Part No:C300K3R1
Stock:0
Inv Date:06-01-2026
Price: Unit price: $22.2
Buy/RFQ:

Ohmite C300K3R1 Vitreous Enamel Power Resistor Specifications:

  • Coating: Lead-free vitreous enamel (except for low resistance models and large models)
  • Core: Tubular Ceramic
  • Terminals: Tinned lug with hole (RoHS solder composition: 96% Sn, 3.5% Ag, 0.5% Cu)
  • Resistance: Max. 63Ω for 300W version
  • Tolerance: +/- 10% (K)
  • Power Rating: Based on 25°C free air rating
  • Derating: Linearly from 100% @ +25°C to 0% @ +400°C
  • Overload: 10 times rated wattage for 5 seconds
  • Temperature Coefficient: +/- 400 ppm/°C
  • Dielectric Withstanding Voltage: 1000 VAC (terminal to mounting bracket)
  • Max Amps Calculation: √P/R
  • Mounting Brackets: Includes two brackets, bolts, washers, and nut (single unit contains one bolt and nut, two washers)
  • Adjustable Lug: Supplied with adjustable 300-watt models (Part No. 1974-A or 1974-B)

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Frequently Asked Questions

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You can click on the BUY or RFQ button to purchase C300K3R1 from an authorized Ohmite distributor.

How do I troubleshoot issues or seek technical support for part C300K3R1?

You can download the C300K3R1 datasheet or visit the Ohmite website for support.

Who is the manufacturer of C300K3R1?

Ohmite

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