Key Features:

Extended Oil Life: The fully inhibited formulation provides outstanding oxidation performance, resulting in a longer service life for the oil.
Transformer Protection: The zero-sulfur base oil makes the oil intrinsically non-corrosive towards copper, eliminating the need for passivation or additional additives. It meets all relevant copper corrosion tests, including DIN 51353, ASTM D1275, IEC 62535, and ASTM D1275B.
System Efficiency: The oil’s excellent low-temperature viscometric properties ensure proper heat transfer within transformers, even at low starting temperatures. It is specially dried and handled to achieve low water content and maintain a high breakdown voltage at the point of delivery, allowing for use in many applications without further treatment.

Specifications:

Base Oil: Mineral
Kinematic Viscosity at 40°C: 10 cSt
Pack Sizes Available: 209L, 20L
Compliance: Meets IEC 60296 (2012) standards

Shell Diala S4 ZX I 209L is ideal for electrical equipment requiring high-quality insulating oil to protect vital components, ensuring energy efficiency and extended operational life.