2500W Planar Thick Film, Non-inductive High-power Resistor

Application Fields

For variable speed drives, power supplies, control equipment, robotics, motor control, and other electrical designs, the easy-to-install device ensures an automatically calibrated pressure of approximately 300 N on the cooling plate.

Features

• Operating Power: 2500 W

• Non-inductive Design

• Compliant with ROHS Standards

• High Insulation and Partial Discharge Performance

• Materials compliant with UL 94 V-0 Standards

• Pre-coated PCM (Phase Change Material) option available for resistors (consult for details)

Technical Specifications

• Resistance Value: ≥0.1 Ω to ≤6 kΩ

• Resistance Tolerance: ±5% to ±10%

• Temperature Coefficient: Standard at ±250 ppm/°C

• Power Rating: 2500 W at a case temperature of 117.5°C

• Short-time Overload: 3000 W for 10 seconds at 70°C, with ΔR = 0.4%

• Maximum Operating Voltage: 5000 V DC or 3500 V AC RMS (50 Hz), higher voltages customizable but not exceeding rated power

• Maximum Continuous Current: 150 A (AC or DC versions)

• Dielectric Strength Voltage: 7 kVrms/50 Hz/500 VA, tested between terminals and case for 1 minute (up to 12 kVrms testable on request to prevent long-term damage)

• Partial Discharge: 4 kVrms < 10 pC (up to 7 kVrms < 10 pC on request, compliant with IEC 60270)

• Peak Current: Up to 1500 A depending on pulse length and frequency (inquire as needed)

• Insulation Resistance: >10 G at 1000 V

• Single Impulse Voltage: Standard at 12 kV (pulse width 1/50 μs)

• Creepage Distance: >42 mm (standard, higher on request)

• Clearance Distance: >14 mm (standard, higher on request)

• Inductance: ≤80 nH (typical, measured at 10 kHz)

• Capacitance/Mass: ≤140 pF (typical, measured at 10 kHz)

• Capacitance/Parallel: ≤40 pF (typical, measured at 10 kHz)

• Operating Temperature: -55°C to +155°C

• Installation - Torque (Contacts): 1.8 Nm to 2 Nm

• Installation - Torque (M4 Screws): 1.6 Nm to 1.8 Nm

• Internal Temperature Sensor (optional): PT-1000 / PT-100 / Type K / Type J (consult for details)

• Cable Type (optional): HV-cable / Flying leads (consult for details)

• Standard Cable Type: H&S Radox 9 GKW AX 1.5 mm²

• Weight: Approximately 120 g

General Specifications

• Electrical Support

• Alumina ceramic metallization with a Miba resistor ALTOX film on the bottom for better heat transfer and optimal discharge effects.

• Encapsulation

• Resin-filled epoxy resin housing with a large creepage distance, large electrical clearance between terminals, and high insulation resistance (CTI 600).

• Resistance Element

• Specially designed for low inductance and capacitance values. The element uses special METOXFILM, demonstrating stability under high power and pulse loads.

• Housing

• The housing has no color additives. The color is natural and may vary due to different pigmentation.

• Connections

• Easily connect loads with M4 and M5 screws (metric threaded terminals available on request).

• Connector height ranges from 25 to 42 mm.

• Various bushings can increase the creepage distance to 85 mm or provide potted cable connections (available on request).

• Standard contacts are M5 (M4-connection screws with a maximum thread of 7 mm available on request).