Description
ABB AM811F Battery Module | 3BDH000050R1
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product | AM811F |
| Product ID | 3BDH000050R1 |
| Product Type | Control system accessory |
| Function | Battery Backup Module |
| System | ABB Freelance / AC 800F |
| Compatible Basic Units | PM 802F, PM 803F |
| Battery Module Position | Otherwise open E2-slot battery position |
| Software Requirement | V7.1 SP2a or higher |
| Length / Depth | 125 mm |
| Height | 155 mm |
| Width | 28 mm |
| Net Weight | 0.17 kg |
| Power Dissipation | Approximately 0.28 W |
| Mounting Context | AC 800F basic unit / battery backup arrangement |
ABB documentation lists AM811F as a battery backup module, while older AC 800F technical documentation gives approximately 0.28 W power dissipation.
Product Introduction
ABB AM811F Battery Module
The ABB AM811F 3BDH000050R1 is a battery backup module used with PM 802F and PM 803F basic units in ABB Freelance/AC 800F systems. It is a controller-support component rather than a PLC CPU, I/O module, communications card, or drive component. ABB’s Freelance documentation specifically identifies AM811F as a battery backup option for the AC 800F architecture.
The important procurement issue is compatibility with the installed AC 800F generation and software level. ABB product information specifies the configuration for PM 802F/PM 803F with Control Builder F V7.1 SP2a or higher, so replacing a battery module without checking the controller revision can create an avoidable commissioning problem.
AM811F
Application Scenarios & Field Pitfalls — Engineer’s Perspective
Engineering Pain Point
The is normally encountered during maintenance of an existing AC 800F controller where battery backup is required and the original module has reached its service limit.
Typical Applications
- AC 800F controller maintenance — Used with PM 802F and PM 803F basic units.
- Freelance DCS spare stock — Appropriate as a dedicated controller battery-backup spare rather than a generic battery.
- Planned shutdown work — Useful when maintaining legacy controller hardware and replacing aging backup components.
- Legacy system support — Relevant where the installed system remains based on the AC 800F architecture.
Technical Pitfalls to Avoid
- Do not confuse with AM801F.
Both belong to the AC 800F battery-backup family, but the system configuration and supported basic-unit arrangement must be checked before substitution. ABB’s AC 800F documentation lists AM801F and separately. - Do not treat 3BDH000050R1 as a generic battery pack.
is an ABB control-system accessory designed for a specific controller architecture. The mechanical fit alone is not sufficient evidence of compatibility. - Check the installed Control Builder F version.
ABB product information specifically associates this configuration with V7.1 SP2a or higher. Verify the actual controller/software revision from the project documentation before approving the replacement. - Verify the complete ordering number.
and 3BDH000050R1 should both be checked against the existing hardware record. Do not approve a visually similar battery module solely from the designation.
Related Products
- ABB AM801F — Earlier AC 800F battery backup module; not automatically interchangeable with .
- ABB PM 802F — AC 800F basic unit supported by the battery backup arrangement.
- ABB PM 803F — Higher-capacity AC 800F basic unit also associated with .
- ABB SA 801F — 115/230 VAC power supply module for the AC 800F architecture.
- ABB SD 802F — 24 VDC power supply associated with AC 800F basic-unit configurations.
- ABB SA 811F — 115/230 VAC power supply for the later AC 800F configuration.
- ABB SD 812F — 24 VDC power supply for the later AC 800F configuration.
- ABB SB 808F — Battery module in the Freelance hardware family; verify system generation before considering substitution.
- ABB EI 813F — 10Base-T Ethernet module used within the AC 800F architecture.
- ABB FI 810F — CAN fieldbus module for AC 800F.
Procurement Check
For an replacement, the minimum information I would want from the plant before approving the part is:
3BDH000050R1 + PM 802F/PM 803F model + installed Control Builder F version + existing battery-module configuration.
One caution: some current web listings describe as a generic battery or even as unrelated drive hardware. ABB’s own Freelance documentation clearly places in the AC 800F battery-module family, so those alternative descriptions should not be used for technical approval.
