Machining PF-CP-202

PF-CP-202 (Hp 2061.5) is a phenolic paper laminate based on phenolic resin and cellulose paper reinforcement to DIN 7735 / EN 60893 – the electrically improved grade of the PF-CP family, internationally known as NEMA XX. With a 40 kV test voltage it is significantly higher than the other grades in the series (15–25 kV), making it particularly suitable for electrical insulation parts subject to higher voltage stress.

PF-CP-202 machines very well – sawing, milling, drilling and punching are all straightforward with standard carbide-tipped tools. During machining we ensure adequate dust extraction and use sharp tools for clean cut edges and holes – from single parts to series production.

PF-CP-202 is particularly suitable for electrical insulation parts with increased requirements for dielectric strength:

• Insulation parts in switchgear and electrical equipment subject to high voltage stress
• Transformer and coil formers as well as insulating supports with increased electrical requirements
• Components requiring a significantly higher test voltage (40 kV) than the standard grade PF CP 201
• Punched or machined insulation parts for mechanical and plant engineering
• Applications requiring a good combination of mechanical strength and electrical insulating capability

As the electrically improved grade, PF-CP-202 sits above the standard grade PF-CP-201 in price. Component price is determined mainly by sheet thickness, material utilisation, machining effort and batch size. We quote binding prices on request based on your drawing.

PF-CP-202 is not declared for direct food contact, is not flame-retardant to UL 94 V-0 (PF-CP-204 is the suitable grade here) and is limited to a 120 °C limiting temperature. For purely cost-driven stamped parts with no electrical requirement, the more economical grades PF-CP-201, 205 or 206 are usually sufficient.

An honest assessment of the properties of PF-CP-202 (Hp 2061.5):

• Advantage: Highest test voltage (40 kV) within the PF-CP phenolic paper laminate series
• Advantage: Good mechanical strength (flexural strength, tensile strength, delamination strength)
• Advantage: Good machinability with standard tools
• Advantage: Proven, standardised material to DIN 7735 / EN 60893
• Disadvantage: Not declared for direct food contact
• Disadvantage: Not flame-retardant treated (choose PF CP 204/Hp 2063 for UL 94 V-0)
• Disadvantage: Limited to a 120 °C limiting temperature (thermal class E)
• Disadvantage: Higher price than the purely punching grades (PF CP 205/206) for simple parts without electrical requirements
• Practical tip: Where significantly higher dielectric strength is required, PF-CP-202 is the right grade. For flame retardancy we recommend PF CP 204 (Hp 2063); for purely stamped parts with no electrical requirement, PF CP 201, 205 or 206 are often the more economical choice.