Porcelain Insulators

The 20 NF 250A and 30 NF 250A are porcelain (oil-filled or air-type) medium/high-voltage bushing insulators for use in power transformers, designed in accordance with the DIN 42533 and EN 50180 standards.

Key Specifications

• 20 NF 250A:

Rated Voltage: 24 kV (Maximum operating voltage)

Rated Current: 250 A

Type: Open-type outdoor/indoor transformer bushing (NF standard)

Application: High-voltage sides of power and distribution transformers at the 24 kV level. 

• 30 NF 250A:
• Rated Voltage: 36 kV (Maximum operating voltage)

Rated Current: 250 A

Type: Open-type outdoor/indoor transformer bushing (NF standard)

Application: High-voltage sides of power and distribution transformers at the 36 kV level.