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Ohmite C300K12R Vitreous Enamel Power Resistor
OHMITE's 280 Series Corrib[®] resistors are specifically engineered for applications demanding high currents at very low resistance values. These heavy-duty resistors are designed to withstand frequent start-stop cycles commonly found in motor starting, dynamic braking, and similar industrial processes. Constructed with corrugated resistive wire securely fused to a ceramic core with a protective vitreous enamel coating, Corrib resistors offer enhanced durability and efficient cooling. They are hollow-core units suitable for secure mounting to chassis surfaces. RoHS compliant versions are available by adding an “E” suffix to the part number. The C300K12R model exemplifies this robust design, providing reliable performance in demanding environments.
Ohmite C300K12R 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)
- Adjustable Lug: Supplied with adjustable 300W models (Part No. 1974-A or 1974-B)
- 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)
- Resistance Range: 0.1Ω to 63Ω
- RoHS Compliant Option: Add “E” suffix to part number
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Frequently Asked Questions
Where can I buy Ohmite C300K12R?
You can click on the BUY or RFQ button to purchase C300K12R from an authorized Ohmite distributor.
How do I troubleshoot issues or seek technical support for part C300K12R?
You can download the C300K12R datasheet or visit the Ohmite website for support.
Who is the manufacturer of C300K12R?
Ohmite