Yokogawa F3YA08-2N | TRIAC Output Module

Product Description

Configured for electrical switching of AC loads in DCS output stages, the Yokogawa F3YA08-2N (F3YA08 TRIAC Output Module) provides direct physical/electrical execution within digital output subsystems. The module implements 8-point TRIAC contact outputs with a shared common architecture, driven via photocoupler isolation and designed for 100 to 240 VAC load switching with defined per-point and per-common current limits.

Suffix Breakdown & Model Matrix

Model suffix -2N is a catalog configuration identifier for the F3YA08 module series. No manufacturer-published functional decomposition of this suffix is provided in the supplied technical data. No additional structural assumptions are applied.

Hardware Specifications

Channel Isolation and AC Output Switching Architecture

The module implements optically isolated output channels using photocoupler barriers between control logic and field-side TRIAC switching elements. This structure supports channel-to-backplane electrical separation, reducing susceptibility to transient coupling between control circuitry and load switching events.

In Yokogawa DCS output configurations, such isolation topology is commonly aligned with mixed-voltage field interfacing and supports deterministic switching of inductive and resistive AC loads under defined thermal derating conditions.

Frequently Asked Questions

Q: Can all 8 outputs be energized simultaneously at maximum rated load?
A: Each point is rated independently up to 1 A (0 to 40 degC), but total common current must not exceed 3 A. Load aggregation must remain within common rail limitation.

Q: What is the switching delay behavior of the TRIAC output stage?
A: Output activation occurs within 1 ms maximum plus half-cycle synchronization window, depending on AC phase alignment.

Q: Is hot-swap supported for this module in live backplane systems?
A: Hot insertion/removal is not defined in the provided electrical specification. Standard practice requires de-energizing output field voltage prior to module replacement.

Field Installation Guidelines

Field wiring shall be performed with AC load conductors separated from control and signal wiring to maintain isolation integrity. Shield termination should be applied at the cabinet ground reference point only, avoiding multi-point grounding loops on output field circuits. Load wiring must respect TRIAC leakage characteristics and ensure compatible minimum load current to maintain stable off-state behavior. Terminal tightening shall follow cabinet standard torque specification for spring or screw-type terminal blocks used in Yokogawa I/O racks.

Other Attributes

• Country of Origin: Japan/Singapore
• Lead Time: In Stock, 2 Working Days

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