The 6600 series are hermetically sealed switch which is suitable for the harsh environments. It is packaged in a rugged design and constructed with metal bellows for the durability of the actuation mechanism. The inter Nitrogen gas is refilled into the switch housing. The housing is resistant against corrosion and can endure most media. It also allows the exposure of the switch to various fluids
Moreover, the device can be operated below 5 mA at 28 VDC and within the maximum temperature of 400°F. Its hermetic sealing is controlled in MIL-PRF-8805 of category 5 such as 1x10-8 atm cc/sec. Also, it can be set for 5 Amp operation through altering the contact material.