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Machine Design

New Product: Solid-state circuit protector

A new line of Raychem Circuit Protection PolySwitch devices provides resettable overcurrent protection for car and heavy-truck wire harnesses.

The PolySwitch BD280 bladed contact device has a 2.8-mm form factor for one-to-one replacement of mini-sized fuses and Type II bimetal circuit protection devices in 12-V vehicle systems.

The device features a no-moving parts design with a resistance switching action that latches immediately following an overcurrent tripping condition that causes the resistance of the device to increase to a high value. Latching can also take place at lower battery voltage and low environmental temperatures. The device is available in current ratings of 10, 15, 20, 25, and 30 A.

Tyco Electronics Corp., 1050 Westlakes Dr., Berwyn, PA 19312, (610) 893-9800,

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