Overview
FRIZLEN offers a comprehensive range of power resistors for various applications, with power values from 5 watts to 250 kilowatts. These resistors are essential for controlling power dynamics in high-performance electrical equipment, ensuring precise operation and stability in drive systems.

Technical Details
FRIZLEN resistors are made with high-quality ceramic or porcelain tubes and wires from alloys like CuNi 44, NiCr 3020, and CrAl 25 5. They offer low temperature coefficients for constant ohmic values over a wide temperature range.

Protection and Standards
Compliant with EN 60529 and DIN VDE 0470 part 1, offering protection from IP00 to IP20. UL-recognized for American and Canadian markets.

Specifications
Specifications include air and creepage distances rated according to IEC 664 for overvoltage category III and pollution degree 3, applicable to grounded three-phase mains supplies up to 3 x 500 V with a testing voltage of 2.5 kV AC.

Safety and Compliance
Power resistors with IP 20 protection comply with safety class I and the CE low voltage directive. Some series have UL recognition under UL 508 and CSA C22.2 No.14.

Protection and Monitoring
Overload and excess temperature protection can be achieved using a thermal overload relay or a temperature switch.

Contact Ratings
Signal contacts for temperature switches and thermal overload relays are rated at 2 A / 24 VDC and 2 A / 230 VAC.

Operating Conditions
Typical power values are valid for a 100% duty cycle under specific conditions, including a maximum ambient temperature of 40°C.

Temperature and Dissipation
Guidelines for temperature rise and continuous dissipation, with a maximum allowable temperature of 200°C above ambient.

Short Time Dissipation
Instructions for calculating allowable short time dissipation using the duty cycle factor (DCF) and overload factor (OLF).

Terminal Details
Specifications for rated current and cross-section for various terminal types, emphasizing heat-resistant wiring.

Mounting Instructions
Guidelines for allowable and non-allowable mounting positions to avoid overheating.

Type Series and Applications
Descriptions of various type series (FZ, FU, FZB, FUB) and their applications, including ballast, limiting, filter, or series resistors.

Electrical and Mechanical Data
Detailed tables provide electrical and mechanical data for different resistor types, including power ratings, resistance values, and dimensions.

Recommendations
For optimal performance, fix resistors onto metallic surfaces for proper cooling. Provide a mechanical stop to avoid overload or short circuit when using adjustable slide resistors.

Additional Features
Special designs and accessories such as dustproof encapsulation, zero position, locking devices, and sector winding are available.

Conclusion
FRIZLEN provides high-quality resistors tailored to meet specific customer requirements, ensuring effective power control and enhanced dynamics in electrical systems.