Product Core Brief
- Model: SA801F (3BDH000011R1)
- Brand: ABB
- Series: AC 800F / FieldController 800
- Core Function: Supplies regulated internal DC power to the AC 800F CPU motherboard and local I/O slots.
- Product Type: AC 800F Power Supply Module
- Key Specs: 115–230 VAC input | 3.3 VDC 5 A + 5.0 VDC 5 A outputs | 26.5 W total output | P-slot installation
- Condition: New Original / New Surplus (verify by part number)
Key Technical Specifications
- Ordering Number: 3BDH000011R1
- Input Voltage: 115–230 VAC (90–260 VAC operating range)
- Input Frequency: 50/60 Hz (47–63 Hz)
- Output 1: 3.3 VDC ±3%, 5 A
- Output 2: 5.0 VDC ±3%, 5 A
- Total Output Power: 26.5 W
- Installation Slot: P-slot (leftmost slot of AC 800F base unit)
- Protection: Short-circuit protection, overcurrent detection, input/output voltage monitoring
- Ride-Through: Output hold ≥20 ms during AC loss
- Diagnostics: Front LEDs (Power, Failure, Run/Stop, Prim/Sec), diagnostic port with EMC filter, EEPROM for fault logging
- Compatible CPUs: PM802F, PM803F and related AC 800F base units
- Environmental: Industrial indoor cabinet installation; verify exact temperature range against the OEM nameplate
Product Introduction (No Fluff)
The SA801F is the primary AC power supply for ABB AC 800F controllers. It converts 115–230 VAC mains into regulated 3.3 VDC and 5.0 VDC rails that feed the CPU motherboard, communication modules, and local I/O slots.
Its strongest practical value is stability during brief mains disturbances. The ≥20 ms ride-through prevents nuisance CPU resets, while front-panel LEDs and the diagnostic port make fault isolation faster during night shifts. Because it must sit in the P-slot, correct placement is as important as correct voltage.
QA & Testing SOP (Dynamic & Transparent)
For surplus AC 800F power modules, we treat electrical health as the first checkpoint.
- Inbound verification — Confirm 3BDH000011R1, hardware revision, connector condition, and absence of burn marks or swollen capacitors.
- Insulation and continuity check — Verify input terminals, PE bonding, and no short between AC input and DC output rails before energizing.
- Bench power-up — Apply 115 VAC and 230 VAC separately. Confirm Power LED, stable 3.3 VDC and 5.0 VDC, and no abnormal fan noise or heating.
- Load verification — Check output voltage under load, ripple, and load regulation using an electronic load or compatible test rack.
- Ride-through and diagnostics — Verify fault LED behavior, diagnostic port response, and EEPROM logging; pack in anti-static shielding with terminal protection.
Installation Pitfalls & Guide (Engineer to Engineer)
❗ P-slot only. The SA801F must be installed in the leftmost P-slot. Placing it in a CPU or I/O slot can damage the module and the backplane.
❗ Do not mix SA801F and SD802F blindly. SA801F is 115–230 VAC; SD802F is 24 VDC. They are not drop-in substitutes without verifying the cabinet power architecture.
❗ Check mains voltage and fuse ratings first. A wrong tap voltage, missing PE, or undersized upstream fuse can cause repeated failures that look like module defects.
❗ Handle the diagnostic connector carefully. Bent pins or contaminated contacts can disable firmware logging and make later troubleshooting much harder.
Replacement steps:
- Back up the AC 800F project and confirm redundancy state if applicable.
- Remove AC power, verify zero voltage, and disconnect the SA801F input connector.
- Release the P-slot module and remove it without forcing adjacent cards.
- Install the replacement, reconnect AC, verify LEDs, and confirm CPU Run/Stop status.
Technical FAQ
Is SA801F still available?
It is a legacy AC 800F component. New surplus and verified replacements are still obtainable, but long-term projects should plan a migration path.
Can I replace SA801F with SD802F?
No. SA801F accepts 115–230 VAC; SD802F is a 24 VDC power module. Swapping them requires a full cabinet power redesign.
Does it support hot-swap?
The AC 800F architecture allows certain module replacements, but power supply changes should be performed with AC power removed unless the system is explicitly designed and approved for live replacement.
What is the typical warranty?
Warranty depends on condition and supplier terms. For surplus stock, expect a limited functional warranty rather than a full OEM new-product warranty.
Which CPUs does it support?
It is designed for AC 800F base units using PM802F/PM803F-class CPUs and their local expansion slots.
