Description
Product Core Brief
- Model: SA801F
- Brand: ABB
- Series: AC 800F process controller
- Core Function: Supplies and monitors power for the AC 800F CPU, local slots, and connected I/O modules.
- Product Type: DCS/PLC power supply module
- Key Specs: 115–230 VAC input | 5 VDC 5 A + 3.3 VDC 5 A outputs | 26.5 W total | 20 ms hold-up time
- Condition: New Original (New Surplus) / Factory Sealed
Product Introduction
A failed power supply in an AC 800F rack can take down the CPU, fieldbus cards, and local I/O at once. The ABB SA801F is the 115–230 VAC power supply module that mounts in the leftmost P-slot of the AC 800F controller and delivers regulated 5 VDC and 3.3 VDC to the CPU and adjacent modules.
This module matters because control-system outages are rarely just “one card.” A verified SA801F replacement restores rack power, status indication, and power-fail signaling without field rewiring. With input/output monitoring, short-circuit protection, and at least 20 ms hold-up during power loss, it helps keep the controller stable long enough for safe shutdown or ride-through.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Part Designation | |
| Application | ABB AC 800F controller rack |
| Input Voltage | 115–230 VAC, with EMC filtering |
| Output 1 | 5.0 VDC ±3%, 5 A |
| Output 2 | 3.3 VDC ±3%, 5 A |
| Total Output Power | 26.5 W |
| Hold-Up Time | ≥20 ms at minimum input voltage |
| Protection | Overcurrent, short-circuit, input/output voltage monitoring |
| Diagnostics | Power-fail signal, status LEDs, diagnostic interface with EEPROM |
| Mounting Position | Leftmost P-slot of AC 800F base unit |
| Compatible CPUs | PM 802F, PM 803F (configuration-dependent) |
| Fuse Recommendation | 2 AT, 5 × 20 mm ceramic, high breaking capacity, melt index ≥4 A |
| Condition | New Original (New Surplus) / Factory Sealed |
Key Selling Points & Differentiators
- Exact OEM replacement: Matches the AC 800F P-slot power supply position without adapter wiring.
- Dual regulated outputs: Delivers 5 VDC and 3.3 VDC to CPU and local modules from a single 115–230 VAC source.
- Built-in power-fail handling: Provides ≥20 ms hold-up and power-fail signaling for controlled shutdown or ride-through.
- Diagnostic-ready: Includes status LEDs, diagnostic interface, and EEPROM for fault traceability.
- Inventory-grade spare: Suitable for planned maintenance, commissioning, or emergency controller restoration.
- Not recommended for AC 800M racks, ACS800/ACS880 drives, 24 VDC-only racks, or non-ABB controller platforms.
Quality Transparency SOP
- Visual inspection: Check housing, front-panel LEDs, P-slot connector, AC inlet, and diagnostic port for damage or corrosion.
- ESD-safe handling: Packed in anti-static shielding with protected connectors to prevent pin damage.
- Connector verification: Inspect the P-slot backplane interface, AC terminals, and diagnostic connector for bent pins or contamination.
- Insulation and continuity check: Verify AC input isolation and connector continuity before energizing the rack.
- Functional validation: When a compatible AC 800F rack is available, verify LED status, output voltage presence, and power-fail signaling. Full load validation depends on the host controller configuration.
Technical Risk Avoidance
❗ Install only in the AC 800F P-slot. The SA801F belongs in the leftmost P-slot of the AC 800F controller. Forcing it into an I/O slot or an AC 800M rack can damage the backplane.
❗ Confirm CPU and module load budget. The module provides 26.5 W total. Adding too many fieldbus or I/O modules can exceed available power, especially with older PM 802F/PM 803F configurations.
❗ Use the correct external fuse. Provide a double-pole mains switch and a 2 AT, 5 × 20 mm ceramic fuse with melt index ≥4 A. Do not undersize the fuse.
❗ Separate AC mains from communication cabling. Route the power cable away from Profibus, Ethernet, and signal cables to reduce noise and commissioning faults.
Buyer’s FAQ
Is this an original ABB part?
Yes. The listing is for ABB SA801F as a new original/new surplus, factory-sealed unit. We do not relabel third-party substitutes.
Which controller systems does SA801F fit?
It is designed for the ABB AC 800F controller rack, installed in the leftmost P-slot. Confirm your CPU type and rack configuration before ordering.
What condition is the unit?
New Original (New Surplus) / Factory Sealed, unless otherwise stated in the product listing. Photos and batch details can be confirmed before dispatch.
Can I use SA801F in an AC 800M or ACS800 drive?
No. SA801F is an AC 800F controller power supply. It is not compatible with AC 800M controllers or ACS800/ACS880 drives.
Do you offer a warranty?
Yes. A standard warranty applies from receipt. Exact terms depend on stock batch and installation conditions. Installation should be performed by qualified control-system personnel.
