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Ohmite C300KR40E Vitreous Enamel Power Resistor
The OHMITE C300KR40E is a heavy-duty vitreous enamel power resistor within the 280 Series. Designed for equipment requiring low resistance loads at high current capacity, it's ideal for motor starting, dynamic braking, and similar applications involving frequent start-stop cycles. Constructed with a ribbed tubular ceramic core and tinned lug terminals, this resistor provides excellent heat dissipation and secure connections. Available in fixed and adjustable versions, and RoHS compliant, the C300KR40E offers a reliable solution for demanding industrial environments. Special order units are available to accommodate up to 1500 watts.
Ohmite C300KR40E Vitreous Enamel Power Resistor Specifications:
- 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)
- Temperature Coefficient: ±400 ppm/°C
- Coating: Lead free vitreous enamel (except for low resistance 35W models and large models ≥750W, which are Silicone Ceramic)
- Dielectric Withstanding Voltage: 1000 VAC (terminal to mounting bracket)
- Overload: 10 times rated wattage for 5 seconds
- Derating: Linearly from 100% @ +25°C to 0% @ +400°C
- Power Rating: Based on 25°C free air rating
- Adjustable Lug: Supplied with adjustable 300 watt models
- Ribbed Construction: Aids in rapid cooling
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Frequently Asked Questions
Where can I buy Ohmite C300KR40E?
You can click on the BUY or RFQ button to purchase C300KR40E from an authorized Ohmite distributor.
How do I troubleshoot issues or seek technical support for part C300KR40E?
You can download the C300KR40E datasheet or visit the Ohmite website for support.
Who is the manufacturer of C300KR40E?
Ohmite