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issue: June 2003 APPLIANCE Magazine

Technology Report
Connector System

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STOCKO Corp., a member of the Wieland Group, has introduced a connector system suited to mate with interconnections of electric kitchen hobs.

The TL 3 HT is a four-way connector that is available in 8-mm spacing designed for applications within the white goods industry such as electric hobs and Ceran cooking plates. The housing of the connector is a high-temperature resistance plastic material, and the receptacle is steel and nickel-plated with a crimp contact termination. “This product is mainly used for flat surface ranges and appliance areas where the surfaces are exposed to higher temperatures and require connectors that are approved for high temperature areas,” explains Robert Ourt, product manager.

The TL 3 HT, which consists of housings EH 700/4-2 HT and receptacle RSB 8180.1158, is designed to interconnect with tabs 6.3 x 0.8 to DIN specifications 46244. The connector has been approved to VDE0627 and is temperature rated to 250°C max. “The key feature of this connector is its temperature rating,” says Mr. Ourt. “It has worldwide approvals, which make this connector beneficial to companies that manufacture their appliances in other countries.”

According to Mr. Ourt, the distinct advantages of the connector are the polarizing and coding features, which eliminate incorrect connections, and the optimum handling by use of multi-way connectors.

“The polarization and coding features are in the actual design of the connector,” explains Mr. Ourt. “The polarization is accomplished due to the mating tab that is on the top of the connector that makes sure the parts are not miss-mated. The lock (coding feature) ensures that the spring contact connector is securely attached to the housing portion.”

He adds that the key of the connector is that it takes four individual wire connections and combines them into one for the appliance engineer and design team. “It eliminates incorrect connections by the mating design,” Mr. Ourt explains. “The ‘optimum handling’ refers to the connector combining these four connections into one connector piece—the TL 3 HT; otherwise, flat stove appliance producers would have to connect and seal off four individual wires for each burner surface. It allows for a ‘plug -n- play’ feature for the manufacturers, which eliminates labor and wiring time.”

The design of the connector was a cooperative effort between STOCKO and cooking plate appliance designers to assure a standard for the flat stoves, according to Mr. Ourt. “The mating tab was a design feature required to assure correct connections into the cooking plates,” he notes.

According to Burgaw, NC, U.S.-based STOCKO, the TL 3 HT has two features competitive connector products do not offer—a mating feature and a multi-way connector versus individual wires.


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