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| Phoenix Contact |
Surgetrab surge-voltage-protection devices (photo) are for all commonly used standard signals that are installed with connection threads directly to the sensor head. This type of installation is said to save time and money, and an additional connection box for accommodating surge voltage protection is no longer necessary. The housing is a robust hexagonal pipe made of V4A stainless steel with the option of 1/2-in. NPT or M 20X15 threading. — Phoenix Contact, Blomberg, Germany