Overview
Manuals
Supply Redundancy
Mains and Alarms
Service Planning
Features:
- Two power supplies provide redundancy for a 20 A Series C DC load.
- Nominal 120/240 V AC input; 47-63 Hz operating frequency.
- Power-system alarms support maintenance; battery ride-through is not included.
The Honeywell CC-PWRR01 is a redundant power subsystem, identified as assembly 51199939-100 in Honeywell service documentation. Two power supplies serve the same Series C load so a healthy unit can maintain cabinet power if its partner fails. The system rating remains 20 A, rather than the sum of both supply ratings. Incoming AC distribution and load allocation must therefore be reviewed together with the controller, I/O and field-power demand.
This configuration provides supply redundancy but does not contain the 24 V backup battery assembly supplied with the battery-backed version. Loss of both AC sources is consequently different from failure of one supply. During maintenance, review each supply alarm, incoming feed and installed component age before disturbing the system. Honeywell recommends planned off-process replacement where possible; any on-process work requires the approved procedure, qualified personnel and the site-specific electrical and hazardous-area controls.
The CC-PWRR01 Honeywell Redundant Power System may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Honeywell CC-PWRR01 documentation and reference links.
Important Notice: These selected original Honeywell pages retain both document covers. Electrical ratings, component scope and service-life advice must be read with their stated conditions; the service note is not an EOL announcement.
The two installed supplies support a redundant 20 A system. They are not a 40 A capacity upgrade. Check that the surviving supply can carry the connected controller, I/O and field load, and review the independence of the incoming AC feeds before relying on redundancy.
The nominal input is 120/240 V AC at 47-63 Hz. Follow the installed system drawings for protective earth, branch protection, distribution and alarm contacts. A healthy DC reading alone does not establish that both supplies or both incoming sources are available.
Honeywell identifies increasing failure risk as power supplies approach or exceed roughly ten years of service. Arrange inspection and replacement around planned outages where possible. The service-life guidance is not an OEM product-discontinuation date, and it must not be presented as an EOL announcement.
