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Ohmite E300K4R0 Vitreous Enamel Power Resistor

Ohmite's 280 Series Corrib[®] resistors are specifically engineered for demanding applications requiring high currents at very low resistance values. These heavy-duty resistors are built to withstand frequent start-stop cycles commonly found in motor starting, dynamic braking, and similar industrial processes. Constructed with corrugated resistive wire and a protective vitreous enamel coating, Corrib resistors offer enhanced durability and efficient cooling. The hollow-core design facilitates secure fastening to chassis surfaces. Available in various configurations and with optional silicone coating for extreme low resistance models, the E300K4R0 provides a reliable solution for power management and control in diverse industrial settings.

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Part No:E300K4R0
Stock:0
Inv Date:06-02-2026
Price: N/A
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Part No:E300K4R0
Stock:0
Inv Date:06-01-2026
Price: Unit price: $71.88
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Part No:E300K4R0
Stock:0
Inv Date:06-01-2026
Price: Unit price: $10.34
Buy/RFQ:
Part No:E300K4R0
Stock:0
Inv Date:06-01-2026
Price: Unit price: $10.34
Buy/RFQ:

Ohmite E300K4R0 Vitreous Enamel Power Resistor Specifications:

  • Coating: Lead-free vitreous enamel (Silicone Ceramic for extreme low resistance 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 each all washers)

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Frequently Asked Questions

Where can I buy Ohmite E300K4R0?

You can click on the BUY or RFQ button to purchase E300K4R0 from an authorized Ohmite distributor.

How do I troubleshoot issues or seek technical support for part E300K4R0?

You can download the E300K4R0 datasheet or visit the Ohmite website for support.

Who is the manufacturer of E300K4R0?

Ohmite

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