| Customization: | Available |
|---|---|
| Max Circuit Current: | 63A |
| Max Circuit Voltage: | 1600VDC |
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ONCCY'Rapid Shutdown Device (Firefighter Safety Switch) Factory is dedicated to manufacturing high-quality switches designed to ensure enhanced safety for emergency response teams. With advanced features and robust construction, our switches provide reliable disconnection of power sources during firefighting operations. Trust our expertise in firefighter safety and choose our switches to enhance the protection of lives and property. Contact us today to discover our range of firefighter safety switches and prioritize safety in critical situations.
In most photovoltaic systems, the dc isolator is integrated into the dc/ac power inverter. After switching off the dc isolator, the cables between the dc solar modules and dc/ac power inverter running through the building are still subject to up to 1000 v dc. in the event of a fire, firefighters are exposed to a very serious source of potential danger. The ONCCY firefighter safety switch provides the solution. It directly disconnects the dc current in close proximity to the solar modules and creates a safer situation for firefighters.
The first step for any firefighter in fighting a fire is to shut down the main AC power circuit. This makes it possible to start extinguishing the actual fire without the risk of electrocution. Onccy developed the Firefighter safety Switch according to this standard international safety routine. This prevents firefighters from having to take any extra action in case of a fire, maximizing their and your safety in the event of a fire.
As soon as a firefighter shuts down the main AC circuit, the ERS/ERP will detect this. If this power down situation lasts longer than 5 seconds, the ERS/ERP will automatically switch to the OFF position. Since the ERS/ERP is located close to the PV modules, the high voltage DC current from the PV modules will be completely isolated, which leaves a safe situation for the firefighters when fighting a fire in the commercial or residential building.
This is our new NS quick disconnect solution, designed to enhance the capabilities of our existing NM model.
Building upon the NM model's features such as a retractable rear pin and pre-wired AC cables, the NS solution addresses a common customer pain point: ensuring watertight connections when extending AC cables. To achieve this, we have incorporated an IP68 rated, three-conductor waterproof connector at the end of the external AC cable. This connector eliminates the need for welding or soldering, allowing for quick and easy installation with just a screwdriver. Once connected, the assembly maintains an IP68 waterproof rating, simplifying future maintenance and disassembly
| Product Name |
Firefighter Safety Switch |
| Model | ERS-2/4 Series |
| Rated Current | 13/20/25/40/50A |
| Poles | 2P/4P/4B |
| Wiring | MC4 Terminal/Blank |
| 1 | It is applicable to a wide range of voltage and current, suitable for photovoltaic systems of 600V~1500V, 9A~55A, and a single switch can turn off up to 10 strings of current at the same time |
| 2 | Wider range of AC voltage: 100~270Vac |
| 3 | Use internal motor drive to disconnect. It can be turned off by an AC switch, or it can be turned off remotely |
| 4 | LED indicator, ON or OFF can be easily identify status |
| 5 | IP66 level, suitable for outdoor installation fully |
| 6 | Equipped with breathing valve to avoid condensation inside the enclosure |
| 7 | Low noise when running, which does not affect people's normal life |
| 8 | Built-in temperature sensor, Shut down automatically exceeding 70°C |
| 9 | Knock outs | Cable glands | MC4 connectors optional |
| 10 | Modular design of product components, fast and convenient after-sale service |
As soon as a firefighter shuts down the main AC circuit, the ERS/ERP will detect this. If this power down situation lasts longer than 5 seconds, the ERS/ERP will automatically switch to the OFF position. Since the ERS/ERP is located close to the PV modules, the high voltage DC current from the PV modules will be completely isolated, which leaves a safe situation for the firefighters when fighting a fire in the commercial or residential building.
The benefits of using a rapid shutdown switch include:
Increased safety for firefighters and other personnel working near the solar panel system
Reduced risk of electrical shock
Compliance with NEC 2014 and later
There are two main types of rapid shutdown switches:
String-level rapid shutdown switches de-energize the entire string of solar panels.
Module-level rapid shutdown switches de-energize individual solar panels.
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