Nov 11

Written by:
11/11/2008 12:00 AM 

With the recent addition of its 100VA model, Foster Transformer offers the widest capacity range of Inherently Limited Class 2 transformers in the industry. The SURVIVOR family ranges from 40 VA to 100 VA – the industry’s largest. Each model features patented short circuit and overload protection which allows them to withstand a direct short circuit in excess of 15 days. For applications requiring less power, the Low Voltage Class 2 family includes 5 VA and 20 VA capacities.

Due to their Inherently Limited classification, SURVIVOR transformers eliminate the need for external protection or the problematic internal fusing. They also extend the range of Class 2 transformers allowing them to be used in intermittent duty applications that would cause the fuses or circuit breakers used by other manufacturers to open. Elimination of external fusing lowers the installed cost and total cost of ownership of the product since no servicing of this protection is required. Field-replaceable fuses also include risks that field personnel may bypass the protection or install a larger fuse thereby defeating the protection and creating a safety hazard. SURVIVOR inherently limited transformers provide the protection without the costs or potential risks associated with external fusing.

Because they withstand overload conditions, SURVIVOR transformers can be sized for the average or continuous current load – this is a less expensive option the specifying oversized transformers which are not “inherently limited” to handle in-rush at start-up or peak current draw. A single larger transformer can now replace multiple smaller transformers, streamlining production and curtailing inventory costs.

These innovative transformers can significantly lower warranty costs while increasing customer satisfaction making them ideal for medical instruments, devices and applications, HVAC and refrigeration, control panels, appliance, vending, 

battery charger and other applications requiring a class 2 transformer.

Foster Transformer has been making electronic transformers, power supplies, and electromagnetic components for more than 70 years. Their corporate headquarters, Engineering Lab and primary manufacturing facility are located in Cincinnati, OH. The ability to manufacture their own tooling, fixtures and unique production machinery, allows Foster to provide quick turnaround, start-up and support from the Cincinnati plant with additional manufacturing capacity available in China.