FUJI NB1-P56-AC – AC Power Supply Module | NB Series PLC Platform
Engineering Background
The FUJI NB1-P56-AC is an AC-input power supply module designed for the Fuji Electric NB Series programmable logic controller (PLC) platform. Fuji Electric’s NB Series represents a mature, field-proven control architecture widely deployed across discrete manufacturing, process control, and machine automation sectors throughout Asia-Pacific and global industrial markets. The NB1-P56-AC provides stable, regulated DC power to the NB Series CPU and I/O backplane, serving as the foundational energy source for the entire control node.
Product Positioning
Targeted at procurement engineers and system integrators sourcing replacement or expansion power supply modules for existing Fuji NB Series installations, the NB1-P56-AC is a direct OEM-equivalent component. It is suitable for both MRO (Maintenance, Repair & Operations) replenishment and new panel build projects where NB Series architecture is the specified platform.
Complete Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | NB1-P56-AC |
| Manufacturer | Fuji Electric Co., Ltd. |
| Series / Platform | NB Series PLC |
| Module Type | AC Power Supply Module |
| Input Voltage | AC 100–240 V (wide-range) |
| Input Frequency | 50 / 60 Hz |
| Output Voltage | DC 5 V (internal bus) |
| Rated Output Current | 5.6 A |
| Rated Output Power | 28 W |
| Inrush Current Protection | Built-in |
| Overcurrent / Overvoltage Protection | Built-in |
| Operating Temperature | 0 °C to +55 °C |
| Storage Temperature | -25 °C to +70 °C |
| Relative Humidity | 5% to 95% RH (non-condensing) |
| Vibration Resistance | IEC 60068-2-6 compliant |
| Mounting | NB Series backplane slot (left-most position) |
| Weight | Approx. 387 g |
| Compliance | CE, UL (refer to Fuji Electric datasheet for current certifications) |
Note: Specifications are based on Fuji Electric published data. Always verify against the official NB Series hardware manual for your specific system revision.
Proven Application Environments
- Discrete Manufacturing: Automotive assembly lines, stamping presses, and robotic welding cells using NB Series PLC control nodes
- Packaging Machinery: Form-fill-seal machines, cartoners, and palletizers with NB Series motion and I/O control
- Textile & Fiber Processing: Spinning, weaving, and dyeing equipment common in Fuji Electric’s core installed base in Asia
- HVAC & Building Automation: Chiller plant control panels and air handling unit controllers
- Water Treatment: Pump station control panels requiring reliable 24/7 power supply operation
- MRO Replacement: Direct drop-in replacement for failed or aging NB1-P56-AC units in existing NB Series panels
Engineering Advantages
- Wide AC Input Range (100–240 V): Single SKU supports both 110 V and 220 V grid environments, simplifying global panel standardization
- High Output Current (5.6 A / 28 W): Sufficient headroom to power fully populated NB Series backplanes including CPU, communication, and I/O modules
- Integrated Protection Circuits: Overcurrent, overvoltage, and inrush current protection reduce panel design complexity and improve MTBF
- OEM Form Factor: Direct mechanical and electrical compatibility with NB Series backplane — no adapter or rewiring required
- Proven Field Reliability: Fuji Electric NB Series components are documented for multi-year continuous operation in industrial environments
- Compact & Lightweight: Optimized module footprint preserves panel real estate for I/O expansion
System Architecture & Signal Flow
In the NB Series PLC architecture, the NB1-P56-AC occupies the dedicated power supply slot on the left end of the NB Series base unit. AC mains input is connected via the module’s terminal block. The module converts AC input to a regulated DC 5 V internal bus, which is distributed across the backplane to the CPU module, all installed I/O modules, and communication interface modules. The power supply module also provides the system RUN/STOP power status signal to the CPU. For systems requiring 24 V DC field power for sensors and actuators, an external 24 V DC power supply must be provided separately — the NB1-P56-AC supplies internal logic power only.
Sourcing & Quality Verification
- Genuine OEM Parts: Konmask.com sources NB1-P56-AC modules through established industrial distribution channels with documented supply chain traceability
- Pre-shipment Inspection: Each unit undergoes visual inspection for label authenticity, housing integrity, and connector condition prior to dispatch
- Packaging Verification: Original Fuji Electric packaging and documentation are preserved where available; any repackaged units are clearly disclosed
- Counterfeit Risk Mitigation: Procurement engineers are advised to verify module serial numbers against Fuji Electric’s authorized service records for critical applications
- Warranty: Contact Konmask.com for current warranty terms applicable to this SKU
Procurement Process
- Confirm Compatibility: Verify your NB Series base unit model and firmware revision against Fuji Electric’s NB Series hardware compatibility matrix
- Request Quotation: Contact support@konmask.com for volume pricing, lead time confirmation, and export documentation requirements
- Place Order: Purchase directly via this product page or submit a formal PO to our sales team for B2B invoice-based procurement
- Shipping & Logistics: Standard international shipping available; DDP (Delivered Duty Paid) and express courier options available on request
- After-Sales Support: Technical support available via email and phone for installation verification and commissioning questions
Technical FAQ
Q: Is the NB1-P56-AC compatible with all NB Series base units?
A: The NB1-P56-AC is the standard AC power supply for the NB Series platform. Compatibility depends on your specific base unit model. Please consult the Fuji Electric NB Series hardware manual or contact our technical team to confirm compatibility with your exact configuration.
Q: Can this module be used with a DC input supply?
A: No. The NB1-P56-AC is designed for AC input only. For DC-input applications, Fuji Electric offers separate DC power supply module variants for the NB Series.
Q: What is the expected service life?
A: Fuji Electric designs NB Series power supply modules for extended industrial service life. Actual MTBF depends on operating environment, load, and ambient temperature. Refer to the official Fuji Electric reliability data for quantitative MTBF figures.
Q: Do you provide installation support?
A: Yes. Konmask.com provides pre-sales and post-sales technical support for qualified B2B customers. Contact support@konmask.com or call +0086 19859288691.
Q: What certifications does this module carry?
A: The NB1-P56-AC carries CE and UL certifications per Fuji Electric’s published documentation. Verify current certification status with the official Fuji Electric product datasheet for your target market’s regulatory requirements.
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