100W Aluminum Pre-Charge Resistor for Power Systems
Description
100W Aluminum Pre-Charge Resistor for Power Systems
This 100W aluminum pre-charge resistor is designed to protect power systems and servo drives by controlling inrush current during startup. Its robust aluminum housing provides efficient heat dissipation, while the compact structure ensures easy integration into tight spaces. Ideal for industrial automation, inverters, elevators, and audio systems requiring high reliability and surge protection.
Features
- Aluminum shell for excellent heat dissipation
- Compact design with high power load capacity
- Encapsulated with flame-resistant inorganic material
- High reliability and strong vibration resistance
- Multiple mounting options for flexible installation
- Resistance tolerance: ±1%, ±2%, ±5%, ±10%
Dimension
| Type | Power
(W) |
Dimensions(mm) | |||||||
| A±2 | B±1 | C±1 | D±2 | G±2 | F | H | I±0.5 | ||
| RXP | 40 | 80 | 36 | 13 | 70 | 60 | 0.75mm² | 300 | 5 |
| RXP | 50 | 100 | 30 | 13 | 90 | 75 | 0.75mm² | 300 |
5 |
| RXP | 60 | 100 | 30 | 13 | 90 | 75 | 0.75mm² | 300 | 5 |
| RXP | 80 | 150 | 35 | 21 | 140 | 125 | 0.75mm² | 300 | 6 |
| RXP | 100 | 130 | 42 | 21 | 118 | 108 | 0.75mm² | 300 | 6 |
| RXP | 120 | 182 | 42 | 21 | 165 | 156 | 0.75mm² | 300 | 6 |
| RXP | 150 | 182 | 42 | 21 | 165 | 156 | 0.75mm² | 300 | 6 |
| RXP | 200 | 182 | 42 | 21 | 165 | 156 | 0.75mm² | 300 | 6 |
| RXP | 300 | 230 | 42 | 21 | 210 | 200 | 0.75mm² | 300 | 6 |
Derating Curve
Applications and Ratings
| Rated Power(W) | Resistance
Range(2) |
Tolerance | T.C.R | MaxWorking
Voltage |
Max Overload Voltage | Dielectric
Vithstanding Voltage |
| 40 | 1Ω~100KΩ |
F±1% G±2% J±5% K±10% |
±300PPM/℃ |
1000V |
2000V |
1500V/Ac |
| 50 | 1Ω~100KΩ | |||||
| 60 | 1Ω~100KΩ | |||||
| 80 | 1Ω~100KΩ | |||||
| 100 | 1Ω~100KΩ | |||||
| 120 | 1Ω~100KΩ | |||||
| 150 | 1Ω~100KΩ | |||||
| 200 | 1Ω~100KQ | |||||
| 300 | 1Ω~100KΩ |
Typical Applications:
-
🔋 Power Supplies – Limit inrush current during capacitor charging
-
⚙️ Inverter Systems (VFDs) – Used in DC bus pre-charging circuits
-
🏗 Servo Drives – Ensures controlled motor startup in automation systems
-
🛗 Elevators & Lifts – Protects inverter drives from overcurrent
-
🎧 Audio Systems – Stabilizes power during power-on in high-wattage speakers
-
🏭 Industrial Automation – Ensures reliable power-up of control equipment
-
🔁 UPS & Battery Systems – Pre-charge circuit for energy storage systems
This 100W aluminum pre-charge resistor is ideal for protecting power systems and servo drives by limiting inrush current.
It’s widely used in inverters, power supplies, and automation control.
Explore more about our servo drive resistor solutions for reliable motor startup and protection.
