KFU8-SR-Ex2.W | Pepperl+Fuchs | Switch Amplifier

Estimated Lead Time : 2-3 Weeks

Manufacturer : Pepperl+Fuchs

Part Number : KFU8-SR-Ex2.W

The KFU8-SR-Ex2.W Switch Amplifier is a specialized electronic device, typically manufactured by Pepperl+Fuchs, used in industrial automation for intrinsic safety applications.

It acts as a 2-channel isolated barrier that safely transfers digital signals from a hazardous area (where explosive atmospheres may be present) to a safe area.

Intrinsic Safety Barrier: The primary function is to limit the energy transferred into the hazardous area, ensuring connected devices (like sensors) cannot ignite the explosive atmosphere.

Signal Conversion: It takes digital input signals from devices in the hazardous area, such as:

• NAMUR sensors (Proximity sensors designed for intrinsic safety).

• Dry contacts (mechanical switches).

Output: It controls a load in the safe area via a changeover relay contact (Form C) for each channel.

Universal Power Supply: It accepts a wide range of power supplies, making it versatile for different installations.

Line Fault Detection (LFD): It can detect wire breakage or short circuits in the field circuit, causing the relay to revert to a de-energized state for safety (LFD can be enabled or disabled via a DIP switch).

Reversible Mode of Operation: The normal output state of the relays can be reversed using DIP switches.

Functional Safety: It is certified for use in safety-related applications, rated up to SIL 2 (Safety Integrity Level 2) according to IEC/EN 61508.

Parameter : Value

Mass (Weight) : Approx. 150 g

Dimensions (W x H x D) : 20×119×115 mm

Mounting : On a 35 mm DIN mounting rail

Shipping Weight : 1 Kg