Product Summary
The Flexem FR-D0808P delivers a powerful combination of eight bidirectional input channels and eight PNP output channels in a single compact unit. This module operates at a rated voltage of 24VDC with an input range spanning zero to 28.8VDC. Each input channel draws a rated current of just seven milliamps. The module’s PNP output channels each support a continuous current of 0.5 amps. With its slim dimensions of 111 by 18 by 76 millimeters and a lightweight design of only 65 grams, this module saves valuable cabinet space. Engineers can rely on this robust component for precise digital signal management.
Theme: Expert Technical Evaluation & Performance Review
The Flexem FR-D0808P provides a highly capable mixed I/O solution for modern control systems. Its eight input channels accept both NPN and PNP signals, offering exceptional wiring flexibility. This bidirectional capability allows the module to interface with diverse sensor types without requiring additional adapters. The wide input voltage range from zero to 28.8VDC ensures stable operation even with fluctuating power supplies. Engineers can trust this module to maintain consistent signal acquisition under varying industrial conditions.
Each input channel consumes a minimal seven milliamps of current. This low power draw reduces the overall load on the system’s power supply. The module’s eight output channels use PNP (sourcing) topology, which is standard for many PLC and controller applications. Each output channel delivers a full 0.5 amps of continuous current. This current rating allows the module to drive small relays, indicator lamps, and compact actuators directly.

The output stage operates at a rated voltage of 24VDC with a tolerance range from 19.2 to 28.8VDC. This wide operating window protects against voltage sags and surges commonly found on factory floors. The module groups its outputs with a current limit of 0.5 amps per group. This design prevents single-point failures from affecting the entire output bank. Engineers should verify total group current does not exceed this limit during system design.
The mechanical design of this module emphasizes space efficiency and thermal management. Its dimensions of 111 by 18 by 76 millimeters allow for high-density mounting on standard DIN rails. The lightweight construction at just 65 grams reduces stress on the mounting hardware. This compact form factor makes the module ideal for distributed I/O cabinets with limited interior space.
Signal integrity remains high due to the module’s robust electrical isolation characteristics. The bidirectional input stage filters electrical noise effectively across the entire voltage range. This noise rejection ensures accurate state detection even in electrically noisy environments containing motors or drives. The PNP outputs provide clean, fast switching for downstream control elements.
Theme: Comparative Analysis & Alternative Matrix

The Flexem series offers two distinct output configurations for the same input structure. The FR-D0808P uses PNP (sourcing) outputs, while the FR-D0808N model employs NPN (sinking) outputs. This distinction determines compatibility with your existing control system architecture. Both models share identical input specifications, dimensions, and weight characteristics.
The choice between these two models depends entirely on your controller’s output requirements. Many modern PLCs prefer PNP inputs, making the FR-D0808P the standard selection for new installations. Legacy systems or specific regional standards may require the NPN variant instead. Both modules offer the same eight-point bidirectional input capability with identical voltage and current ratings.
The input channels on both models support a rated voltage of 24VDC with an input range of zero to 28.8VDC. The rated current per input point remains seven milliamps across both models. This consistency simplifies inventory management for facilities using both output types. Engineers can standardize on one input specification while selecting the appropriate output type per application.
The output specifications differ significantly between the two models. The FR-D0808P provides eight PNP outputs, each capable of 0.5 amps continuous current. The FR-D0808N provides eight NPN outputs with identical current ratings. The voltage range for the output stage is identical at 19.2 to 28.8VDC. This shared voltage tolerance ensures both models work with the same power infrastructure.

Physical dimensions and weight remain identical for both models. Each unit measures 111 by 18 by 76 millimeters and weighs exactly 65 grams. This uniformity allows engineers to design panels without worrying about model-specific spacing requirements. The mounting hardware and wiring guidelines apply equally to both variants.
Logistics & Standard Packaging Details
- One Flexem FR-D0808P digital mixed I/O module
- Product documentation and quick start guide
- Standard express delivery shipping via FedEx, UPS, and DHL
