What the Deep Sea 7320 MKII Auto Start Module does
The DSE7320 MKII is an auto-mains-failure (AMF) controller: it watches the mains supply, starts the generator when power fails, transfers the load once voltage and frequency are stable, and hands back to mains — with a cool-down run — when power returns.
It also protects the engine (oil pressure, temperature, over/under-speed, charge failure) and the alternator, and keeps an event log that tells an engineer exactly what happened before a shutdown. For hospitals, hotels and offices it is the heart of an automatic standby system.
Signs it needs replacing
- The generator does not start automatically on a power cut.
- The display is dead, unreadable or water-damaged.
- Erratic alarms or shutdowns that do not match engine readings.
- Upgrading an old manual or obsolete panel to automatic operation.
Get the right part first time
Send us these on WhatsApp and our engineers will confirm the exact part before you pay:
- A photo of your current controller (front and rear wiring).
- Whether the set has a changeover switch/ATS and how it is controlled.
- A photo of the generator nameplate (make, model, kVA, serial number).
Fitting notes
Fitting means re-terminating the panel wiring and configuring the controller for your engine and alternator: sensor types, protection settings, timers, mains sensing and transfer logic. It must be commissioned with a real mains-failure test. This is engineer work — we configure, commission and leave you a record of the settings.
Frequently asked questions
Can a DSE7320 replace my old controller?+
In most cases yes, including other brands — the wiring is adapted and the controller configured for your set.
What is the difference between the DSE7320 and DSE6120?+
Both are AMF controllers. The 7320 MKII adds more inputs, outputs and communication options for remote monitoring; the 6120 MKII is the cost-effective choice for simpler standby sets.
Can the generator be monitored remotely?+
The 7320 MKII supports remote monitoring through Deep Sea communication options. Ask us what suits your site.