F3XA08-1N AC Input Module – 8-Point Photocoupler Isolated Input for Yokogawa F3 Series
The Yokogawa F3XA08-1N is an 8-point AC voltage input module for the F3 series. It uses photocoupler isolation for each input. This design blocks field noise and protects the controller. The module accepts 100–120 V AC at 50/60 Hz. It suits high-voltage AC signals from switches, relays, and limit contacts in factory automation. Each point supports 100% simultaneous ON ratio. You can set the input response time per module: 15 ms or 30 ms for OFF to ON, 25 ms or 40 ms for ON to OFF. Interrupts can be set for each input point. The module draws 40 mA at 5 V DC and weighs 130 g. It connects through a 10-point M3.5 screw terminal block. Eight points share one common. This module is a practical choice for obsolete control systems that still need reliable AC input expansion.
Technical Specifications
| Brand | Yokogawa |
| Model | F3XA08-1N |
| Series | F3 Series |
| Module Type | AC Input Module |
| Input Type | AC Voltage |
| Number of Inputs | 8 |
| Isolation Method | Photocoupler Isolation |
| Rated Input Voltage | 100–120 V AC, 50/60 Hz |
| Rated Input Current | 5.4–6.5 mA per point at 100–120 V AC, 60 Hz |
| Operating Voltage Range | 85–132 V AC, 50/60 Hz |
| ON Condition | 80 V AC min., 5 mA min. |
| OFF Condition | 40 V AC max., 1 mA max. |
| Response Time OFF to ON | Selectable: 15 ms max. or 30 ms |
| Response Time ON to OFF | Selectable: 25 ms max. or 40 ms |
| Maximum Simultaneous ON Ratio | 100% |
| External Connection | 10-point terminal block, M3.5 screws |
| Common Points | 8 points per common |
| Interrupt | Configurable for each input point |
| Current Consumption | 40 mA at 5 V DC |
| Weight | 130 g |
| Operating Temperature | 0 to 55°C |
| Storage Temperature | -20°C to 75°C |
| Operating Humidity | 10 to 90% RH, non-condensing |
| Storage Humidity | 10 to 90% RH, non-condensing |
| Surrounding Atmosphere | No corrosive gases, no flammable gases, no heavy dust |
| Model and Suffix Codes | F3XA08-1N: 100–120 V AC input, 8 points |
Key Performance Data
- Measurement Range: 85–132 V AC operating window for stable field signals.
- Frequency Response: 50/60 Hz rated AC input.
- Sensitivity: ON at 80 V AC min. and 5 mA min. This keeps weak signals detectable.
- Linearity: Digital input threshold behavior with defined ON and OFF levels. This gives predictable switching.
- Resolution: 8 discrete input points with per-point interrupt configuration.
- Temperature Range: 0 to 55°C operating, -20 to 75°C storage.
- Environmental Tolerance: 10–90% RH non-condensing. Use in clean, non-corrosive air.
- Noise Immunity: Photocoupler isolation separates field AC from internal logic. This reduces ground noise and surge effects.
Installation Guide
Mount the module in a Yokogawa F3 series rack. Keep the rack free of corrosive gas, flammable gas, and heavy dust. Use the 10-point M3.5 screw terminal block for field wiring. Tighten screws to a secure torque. Keep AC input wires away from signal cables. Confirm the 85–132 V AC supply before power-up. Set the response time jumper or configuration to match your scan cycle. Enable per-point interrupts only where fast event capture is needed. Check that the ambient temperature stays within 0–55°C and humidity stays within 10–90% RH. 100% simultaneous ON is allowed, so no derating is needed for all-points-on operation.
Commissioning and Maintenance Convenience
- Front-accessible terminal block speeds up wiring checks and point-by-point voltage tests.
- Selectable response times let you trade speed for noise rejection without changing hardware.
- Per-point interrupt setup simplifies event-driven diagnostics during commissioning.
- 8 points per common reduces common wiring and simplifies loop checks.
- Photocoupler isolation lowers troubleshooting risk when field AC faults occur.
- Stable 5 V DC, 40 mA load keeps backplane power budgeting simple.
Compatibility Notes
The F3XA08-1N fits Yokogawa F3 series I/O slots. It suits systems that use 100–120 V AC field devices such as pushbuttons, selector switches, relays, and limit switches. The 8-point/common layout matches standard F3 terminal arrangements. Confirm your base unit supports AC input modules and the 10-point terminal block. For mixed I/O racks, check backplane 5 V DC capacity for the 40 mA draw. This module is a strong fit for legacy F3 systems and obsolete control systems that need direct AC input expansion.
Certification and Compliance Information
This listing describes the Yokogawa F3XA08-1N per the published module specifications. Compliance markings depend on the unit label and the original Yokogawa documentation. Oiltech Controls verifies each module before shipment. Request current certification details with your inquiry at info@oiltechcontrols.com.
Packaging List
- 1x Yokogawa F3XA08-1N AC Input Module
- 1x Protective packing
- 1x Test verification record from Oiltech Controls
- 1x 12-month warranty statement
Warranty and Shipping
Every unit includes a 12-month warranty. We ship by FedEx, UPS, and DHL. Choose the service that fits your delivery schedule. Shipment tracking is provided. Contact +86 158 8020 0923 for urgent dispatch needs.
Typical Applications
- Factory automation panels with 100–120 V AC pushbuttons and selector switches.
- Relay and contact monitoring in machine control cabinets.
- Limit switch feedback on conveyors and packaging lines.
- Legacy F3 system expansion where AC input capacity is limited.
- Obsolete control system support for plants that keep older Yokogawa racks in service.
- Interlock status capture using per-point interrupt configuration.
Diagnostic Capability
The module provides per-point interrupt configuration for fast event capture and fault tracing. Defined ON/OFF voltage and current thresholds help you verify field device health with a meter. Photocoupler isolation limits fault propagation from field wiring. 8 points per common makes common-line fault checks faster. Use the selectable response time to distinguish real signals from contact bounce and noise. These features support practical troubleshooting in live panels.
Why Buy From Oiltech Controls?
- More than 15 years of hands-on industrial automation spare parts experience.
- Global shipment support through FedEx, UPS, and DHL.
- Tested industrial surplus and refurbished options for cost-sensitive projects.
- 12-month warranty on every module.
- Technical verification before shipment to reduce installation risk.
- Support for obsolete control systems that still run critical production.
FAQ
- Q: What is the F3XA08-1N input voltage?
A: It is rated for 100–120 V AC, 50/60 Hz. The operating range is 85–132 V AC. - Q: How many inputs does the module provide?
A: It provides 8 AC input points with 8 points per common. - Q: What isolation method does it use?
A: It uses photocoupler isolation. - Q: Can I use all inputs at the same time?
A: Yes. The maximum simultaneous ON ratio is 100%. - Q: Can I set response time?
A: Yes. OFF to ON is selectable at 15 ms max. or 30 ms. ON to OFF is selectable at 25 ms max. or 40 ms. - Q: Does it support interrupts?
A: Yes. Interrupts can be specified for each input point. - Q: What is the power draw?
A: It draws 40 mA at 5 V DC. - Q: What is the warranty?
A: It comes with a 12-month warranty. - Q: How do you ship?
A: We ship by FedEx, UPS, and DHL.
Contact Information
Inquiries: info@oiltechcontrols.com
WhatsApp: +86 158 8020 0923
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