Mobilect 44
Mobilect 44 is a high-quality inhibited mineral insulating oil developed for use in transformers, switchgear and other electrical equipment. The formulation provides very good dielectric properties and oxidation stability, helping ensure reliable insulation and heat transfer performance. Mobilect 44 is inhibited with a phenolic antioxidant to improve oxidation resistance and extend service life in applications with significant exposure to air.
One of the key advantages of Mobilect 44 is its high resistance to thermal and chemical degradation. The oil resists sludge formation and oxidation products that could otherwise reduce heat transfer efficiency and impair insulation performance. This helps maintain clean systems and extend equipment life while improving operational reliability.
Mobilect 44 is specifically treated during manufacture to remove moisture, helping maintain strong dielectric properties. Low moisture content improves electrical insulation performance and reduces oxidation tendencies. The oil also exhibits high dielectric strength, providing resistance to electrical stress when free from contaminants such as water, fibres and polar compounds.
Another important benefit is its excellent low-temperature performance. Mobilect 44 is wax-free and maintains fluidity at low temperatures, allowing effective circulation and heat transfer. The low pour point ensures free flow between transformer components and supports reliable operation in outdoor applications.
Mobilect 44 is recommended for use in oil-filled transformers and switchgear where the oil functions as both an insulation medium and heat transfer fluid. It meets ASTM D3487 Type II and IEC 60296 requirements for special applications. The product is not recommended for oil-filled cables, capacitor use or special impregnation processes.
Physical characteristics include density of approximately 0.877 g/cm³ at 20°C and kinematic viscosity of approximately 7.6 mm²/s at 40°C. Mobilect 44 has flash point of approximately 146°C and pour point of approximately −63°C. Breakdown voltage after treatment is greater than 70 kV. The oil provides excellent dielectric performance, oxidation stability and reliable insulation protection.
