These high-tech, durable and cost-effective Step Up / Step Down Transformers Oil Cooled are provided with round the clock duty-cycle. These Oil Cooled Transformers are designed with 2500V AC for 2 Minutes break down strength. Our Air Cooled Transformers are provided with the insulation resistance features of more than 100 mega ohms at 500V DC. These Step UP Transformers are designed using hard-wearing raw materials with sturdy brass studs, connectors and bus bars used as terminals.