ABB SD812F 3BDH000014R1 24 VDC Power Supply

Description

Key Technical Specifications

• Manufacturer: ABB
• Model: SD812F
• Ordering Number: 3BDH000014R1
• Product Type: Power supply
• System Use: For AC800F / Freelance 800F controller base units
• Input Voltage: 24 VDC
• Output Voltage: 5 VDC / 5.5 A, 3.3 VDC / 6.5 A
• Operating Temperature: -25°C to +70°C
• Storage Temperature: -40°C to +85°C
• Dimensions: 155 mm x 67 mm x 0 mm net size listed in ABB data
• Weight: 0.46 kg
• Compatibility: Use with PM 802F or PM 803F; Control Builder F V7.1SP2a or higher is mandatory

Product Introduction

ABB SD812F 3BDH000014R1 is a 24 VDC power supply for ABB AC800F and Freelance 800F control systems. It powers the controller electronics and provides 5 VDC and 3.3 VDC rails for the base unit.

This unit is tied to the PM 802F or PM 803F base units and requires Control Builder F V7.1SP2a or later. In field work, that means you verify the exact base unit and software level before you install it, or you waste time chasing a preventable mismatch.

SD812F

SD812F

Installation & Configuration Guide

Stage 1: Pre-Installation Preparation

1. Notify operations and create downtime. Verify safe state, apply lockout/tagout, and wait 5 minutes for capacitor discharge.
2. Gather an ESD strap, PH1 screwdriver, multimeter, wire labels, and a smartphone for photos.
3. Back up the controller configuration, document power wiring, and photograph the existing module layout and any jumpers.
4. Confirm the exact ordering number, base unit, and software version before removal.

Stage 2: Removing the Old Module

1. Remove the cabinet cover or access panel.
2. Label and disconnect all wires carefully. Do not force terminals.
3. Release the mounting hardware and remove the module straight out to avoid connector damage.
4. Inspect the mounting surface, connectors, and cabinet wiring for heat damage, oxidation, or loose terminations.
5. Keep the old module until the replacement is proven under load.

Stage 3: Installing the New Module

1. Put on the ESD strap and verify the exact model match.
2. Confirm the compatible base unit is PM 802F or PM 803F.
3. Seat the module fully and secure the mounting hardware.
4. Reconnect the wiring exactly as documented, with attention to polarity and grounding.
5. Check off the install list: [] Model match, [] Wiring secure, [] Mounting locked.

Stage 4: Power-On & Testing

1. Use a multimeter to check the 24 VDC feed for shorts before energizing.
2. Power up the cabinet first, not the process loads.
3. Verify LED status, controller startup, and output rails.
4. Confirm communication with the AC800F system and check for alarms.
5. Run a short functional test under normal cabinet load.
6. If the unit will not start, check input polarity, base unit compatibility, and software version first.

Frequently Asked Questions

Can I hot-swap the SD812F?
No, do not assume that. This is a controller power supply, and live removal can take down the base unit or damage the supply path.

Is SD812F the same as 3BDH000014R1?
Yes. is the ABB type designation, and 3BDH000014R1 is the ordering number.

What system does it fit?
It is used with ABB AC800F / Freelance 800F systems, specifically with PM 802F or PM 803F base units. Software V7.1SP2a or higher is required.

Is this an obsolete part?
It is a legacy ABB item, and stock is usually limited. Exact-number matching matters more than ever on these older controller families.

Will I lose my program when replacing it?
Usually no, because the application logic is stored in the controller system rather than the power module itself. Still, back up the configuration before you touch anything.

What condition is this sold in?
Commercial stock is usually New Original or New Surplus. If someone is offering refurbished stock, ask for test records and a return policy.

Why is the secondary-market price lower than ABB list price?
Because surplus channels usually price below OEM factory list. That lower price only makes sense if you verify condition, compatibility, and lead time before buying.