P Series Busbar Insulator— Willele
Willele P Series Busbar Insulators provide high-grade insulation and stable fastening for demanding power electronics and transportation cabinets. The glass-reinforced BMC thermoset body ensures excellent dielectric strength and tracking resistance, while zinc-plated copper/steel inserts give repeatable tightening performance across −40 °C to +140 °C.
Material: BMC thermoset, glass reinforced
Insert: Copper or steel, zinc coated
Thread options: M3 / M4
Operating temp: −40 °C … +140 °C
Overview
Designed for critical AC and DC isolation with tight mechanical tolerances and thermal stability. P Series is widely used in EV power distribution, PV & energy storage, fast-charging cabinets and rail traction auxiliaries.
Comprehensive Technical Specifications
- Working Voltage Range (AC): 640–1600 V
- Working Voltage Range (DC): 800–2200 V
- Key Feature: Superior temperature resistance with excellent insulation properties
- Appearance: Customizable colors to match system requirements
Model-Specific Technical Parameters
Select the model & insert material (copper/steel) that meets your torque and corrosion needs.
| Product Model | Screw Size | Hardware Material | Hole Depth (mm) | Recommended Torque (N·m) | Height (mm) | Flange (mm) |
|---|---|---|---|---|---|---|
| P1610 | M3 | Copper | ≥4.5 | 0.5 | 16 | 8 |
| P1610 | M3 | Steel | ≥4.5 | 1 | 16 | 8 |
| P2010 | M3 | Copper | ≥6.5 | 0.5 | 20 | 8 |
| P2010 | M3 | Steel | ≥6.5 | 1 | 20 | 8 |
| P2510 | M3 | Copper | ≥6.5 | 0.5 | 25 | 8 |
| P2510 | M3 | Steel | ≥6.5 | 1 | 25 | 8 |
| P3010 | M3 | Copper | ≥6.5 | 0.5 | 30 | 8 |
| P3010 | M3 | Steel | ≥6.5 | 1 | 30 | 8 |
| P4010 | M3 | Copper | ≥6.5 | 0.5 | 40 | 8 |
| P4010 | M3 | Steel | ≥6.5 | 1 | 40 | 8 |
| P4510 | M3 | Copper | ≥6.5 | 0.5 | 45 | 8 |
| P4510 | M3 | Steel | ≥6.5 | 1 | 45 | 8 |
| P2012 | M4 | Copper | ≥6.5 | 1 | 20 | 10 |
| P2012 | M4 | Steel | ≥6.5 | 2 | 20 | 10 |
| P2512 | M4 | Copper | ≥6.5 | 1 | 25 | 10 |
| P2512 | M4 | Steel | ≥6.5 | 2 | 25 | 10 |
| P3012 | M4 | Copper | ≥6.5 | 1 | 30 | 10 |
| P3012 | M4 | Steel | ≥6.5 | 2 | 30 | 10 |
| P3512 | M4 | Copper | ≥6.5 | 1 | 35 | 10 |
| P3512 | M4 | Steel | ≥6.5 | 2 | 35 | 10 |
| P4012 | M4 | Copper | ≥6.5 | 1 | 40 | 10 |
| P4012 | M4 | Steel | ≥6.5 | 2 | 40 | 10 |
Understanding the Model Numbering
P1610 → “P” series, height 16 mm, base configuration “10” (8 mm flange).
P2012 → “P” series, height 20 mm, enhanced configuration “12” (10 mm flange).
Applications
- New energy vehicles – HV/LV distribution and auxiliaries
- Charging stations – high-voltage charger cabinets
- Photovoltaic equipment / energy storage PCS
- Intelligent machinery and industrial control
- Rail transit power electronics
- Marine/ship electrical isolation
Engineering Advantages
- Temperature stability under severe thermal cycles
- Dielectric strength for consistent safety margins
- Precision manufacturing for repeatable fit and torque
- Material quality: BMC unsaturated resin with excellent tracking resistance
- Hardware options: copper or steel inserts to suit application
- Installation flexibility: multiple mounting configs with specified torque
Installation Best Practices
- Choose height and flange size per clearance and creepage rules.
- Keep mounting surfaces clean and flat; observe recommended torque.
- Consider ambient temperature range and corrosion environment.
- Verify thread size/depth compatibility with hardware.
Quality & Compliance
Manufactured under strict process control. Typical compliance: CEOK RoHSOK REACHOK. Project-specific certificates available upon request.
Ordering & Customization
Order by model (e.g., P3012) plus insert material (copper/steel) and color if needed. OEM options available for height, insert and color standardization.
All values are typical; validate in your application. Willele engineering can assist with selection and testing.
