Manufacturer of transformer and electrical insulating oils in China

Production of Transformer and Electrical Insulating Oils for B2B, OEM and Private Label

MOSINTER GROUP manufactures transformer oils and electrical insulating oils for power transformers, circuit breakers, capacitors, and electrical insulation systems. The category covers oils for transformers, circuit breakers, capacitors, and other high-voltage equipment. For importers, distributors, industrial customers, and brand owners, serial production, bulk orders, OEM, Private Label, filling, and custom packaging are available; specific grades, specifications, and compatibility are confirmed based on product technical documentation and order conditions.

MOSINTER GROUP manufactures automotive and industrial lubricants and technical fluids through specialized production, filling, and packaging resources in China. Ningbo MOS Chemical Co., Ltd. manages the website moslube.com and handles international Contact Us, order coordination, packaging, technical documentation, and export delivery.

Oil for oil circuit breakers for high-voltage electrical insulation up to 220 kV

Electrical Insulating Oil

Oil circuit breaker oil

Product Class: Oil circuit breaker oil
Operating Condition Marking: Electrical Insulation / Low Temperature / High Safety
Application Equipment: Oil Circuit Breakers (≤220 kV)

Oil for high-voltage circuit breakers rated up to 220 kV, providing electrical insulation, low-temperature performance, and safe operation.

Learn More →

Transformer Insulating Oil for Transformers and Power Equipment

Electrical Insulating Oil

Transformer Oil

Product Class: U / T / I Series (from -10°C to -40°C)
Operating Condition Marking: Electrical insulation / Low temperature / Cooling / High voltage
Application Equipment: Transformers, Power Equipment
Viscosity Grade: Low-temperature grades: -10°C / -20°C / -30°C / -40°C

Transformer insulating oil for transformers and power equipment, providing electrical insulation, cooling, and low-temperature performance.

Learn More →

Electrical Insulating Oil

Capacitor Oil

Product Class: No. 1 / No. 2
Operating Condition Marking: Electrical Insulating / High Voltage / Low Loss
Application Equipment: Capacitors, power equipment
Viscosity Grade: No. 1 / No. 2

Capacitor insulating oil for capacitor systems and power equipment, designed for high dielectric strength and low dielectric loss.

Learn More →

Frequently Asked Questions: Transformer Oil

What is transformer oil used for?

Products in this category are intended for power transformers, circuit breakers, capacitors, and electrical insulation systems. This page covers oils for transformers, circuit breakers, capacitors, and other high-voltage equipment; applicability should be confirmed against the specific product and equipment documentation.

What grades, specifications, and packaging options are available?

Available grades, specifications, and packaging are indicated in the specific product cards and are finally confirmed by technical documentation and agreed order terms.

Do you support OEM, private label, and custom packaging?

Yes. Project capabilities may include serial and large-batch OEM production, private label, repackaging, packaging selection, multilingual labeling, technical documentation, and export order coordination.

What are the respective roles of MOSINTER GROUP and Ningbo MOS Chemical Co., Ltd.?

MOSINTER GROUP manufactures and globally supplies lubricants and technical fluids on a B2B basis. Ningbo MOS Chemical Co., Ltd. manages the website and handles international Contact Us, order coordination, packaging, documentation, and export delivery.