Configured for discrete signal switching and galvanic isolation in control loops, the Pepperl+Fuchs KFD0-RO-2 (KFD0-RO-2 Relay Module) provides direct physical/electrical execution across industrial automation networks.

Model Designation and Suffix Analysis

The model designator breaks down into the KFD0 housing platform indicating a passive-input or loop-powered relay barrier layout, the RO functional grouping denoting dual relay output execution, and the channel count suffix specifying two independent electromechanical output circuits within the modular enclosure.

Hardware Specifications

DIN-Rail Mounting Stability and Surge Voltage Protection Limits

Engineered for Pepperl+Fuchs K-System infrastructure, this module integrates high-stability DIN-rail mounting mechanics to ensure reliable grounding and mechanical retention under heavy industrial vibration. Built-in surge voltage protection limits safeguard internal relay coils and switching contacts against transient voltage spikes originating from inductive loads. The galvanic isolation barrier prevents ground loops and electrical interference from propagating between control system logic outputs and high-power field actuators.

Ordering Information and Package Contents

• 2 x Pepperl+Fuchs KFD0-RO-2 Relay Module units

• 2 x Removable screw terminal block sets

• 1 x Technical documentation and safety compliance sheet

Field Installation Guidelines and Wiring Practices

• Snap the module securely onto a standard 35 mm DIN rail inside a protective control cabinet enclosure.

• Separate low-voltage control wiring strictly from high-voltage relay output cables to maintain regulatory isolation distances.

• Connect the control logic input terminals to the driving PLC digital output card, observing correct polarity.

• Wire load circuits through the relay changeover contacts, ensuring external fusing matches the 2 A maximum rating.

• Torque terminal screws securely to prevent high-resistance joints and intermittent contact resistance during operation.

Frequently Asked Questions

• Q: What is the primary function of the Pepperl+Fuchs KFD0-RO-2?

  A: It provides galvanic isolation and electromechanical relay switching for discrete control signals in industrial loops.

• Q: How many relay output channels are integrated into this module?

  A: The unit features two independent relay output channels with changeover contact configurations.

• Q: What is the maximum switching capacity of the relay contacts?

  A: The relay contacts support up to 250 VAC at 2 A under resistive load conditions.

• Q: What type of control input signal activates the relay?

  A: It is driven by standard 24 VDC control signals or external volt-free switching contacts.

• Q: How is the module mounted inside an industrial control panel?

  A: It mounts directly onto a standard 35 mm DIN rail conforming to EN 60715 specifications.

• Q: Does the device require an external power supply for the relay coils?

  A: The control input energizes the internal coils directly from the control circuit logic supply.

• Q: What is the internal power consumption of the module?

  A: The unit consumes less than 1.0 W during active coil energization.

• Q: Can this relay module be hot-swapped while energized?

  A: Hot-plugging depends on plant safety permits, but control and load wiring must be de-energized during maintenance.