SS-ACC-004
Mains-Powered High Level Alarm Box with Battery Back-Up
Delivery or Collection
Product description
This mains-powered 230V / single-phase alarm box is designed to provide reliable monitoring and warning signals for pumping stations, wastewater systems, and liquid level control applications. Complete with an integrated battery back-up, it ensures continuous operation even during power outages, offering added protection and peace of mind for critical installations.
Housed in a durable ABS plastic enclosure (250 × 200 × 110 mm) finished in grey RAL 7035, the unit features a transparent polycarbonate window for clear visibility of indicators and alarm status. The system includes both acoustic and visual alarms via the 423 MCS-AL02 module, providing immediate notification of fault conditions.
A yellow LED indicator shows when mains supply is present, while multiple dry-contact outputs allow for remote alarm signalling. The control box can be connected to a variety of external alarm triggers such as probes, float switches, pressure switches, and more.
The built-in automatic charger maintains the internal 12V / 1.3Ah battery, offering up to 20 hours of autonomy in the event of a power failure. Four cable glands are included for straightforward installation and secure cable entry.
Key Features
- 230V / 1-phase mains-powered alarm box with battery backup
- Robust ABS enclosure (250 × 200 × 110 mm) with clear polycarbonate inspection window
- Integrated acoustic and visual alarms (423 MCS-AL02 alarm module)
- Yellow LED indicator confirms mains supply presence
- Supports remote alarm triggering via probes, float switches, or pressure switches (C11–C12)
- Dry-contact terminals for remote light alarm output (17–18)
- Dry-contact terminals for remote audible alarm output (14–15)
- Automatic battery charger with included 12V / 1.3Ah backup battery
- Up to 20 hours of battery autonomy
- Supplied with four cable glands for easy installation
Can’t find what you need?
Call or message us for help finding the right part.
Frequently asked questions
Practical answers from Pump Station Direct.
What does this high-level alarm do?
It warns when liquid reaches the alarm’s set high-level position. The warning needs a response; the alarm does not pump wastewater away or guarantee overflow prevention.
Does the alarm battery keep the sewage pump running?
No. The alarm battery supports the alarm itself, not the sewage pump. This model uses mains power with battery backup for the alarm.
Where can I find matching pump parts?
Browse our parts and accessories. If you need help matching an existing installation, send Pump Station Direct the model details, connection sizes and a clear photograph.




