Firefighter Safey Switch
Your Professional Firefighter Safey Switch Supplier
We have two production bases, covering an area of 35 mu (about 23,333 square meters) of factory premises, including a 3,000-square-meter high-standard workshop. There are 350 employees in total, among whom 75 are technical backbones, forming a team of professional engineers and workers.We have an extensive product line, including EV charger cover, solar system cover, solar system cabinet, firefighter safety switch, sheet metal processing, injection molding processing,. We can handle customizations for both metal products and plastic products.
Why choose us
Production Market
The sales area covers the world, and the products are exported to more than 40 countries and regions including Europe, North America, South America, East Asia, Southeast Asia, Africa, Oceania, and the Middle East.
Manufacturing Experts
We are experts in making injection molds, focusing on creating tools that shape plastic parts perfectly. Our work starts with understanding what you need-whether it's a small mold for tiny parts or a large one for big items.
OEM and ODM Customization
We focus on our customers’ needs and offer OEM and ODM customization services. We are committed to providing excellent customer service and achieving a win-win outcome.
Service Advantages
We have an experienced sales team that can provide professional products according to your needs.If you have any enquiry about quotation or cooperation, Our sales representative will contact you within 24 hours.
Firefighter Safey Switch
The Firefighter Safety Switch is the perfect solution to protect rooftop solar installation in case of emergency or fire. A rapid shutdown device, capable of reaching a maximum circuit voltage of 1500 Vdc and breaking current up to 38A per circuit. It includes a combination of electronics for motoring AC current and a quick shutdown switch for disconnecting the DC circuits that come from the photovoltaic panels.
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Operating Voltage |
100V AC-240V AC |
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Nominal Voltage |
230V AC |
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Nominal Current |
30mA |
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Start up(loading)Current |
Average 100mA |
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Switch on Action Current |
Max 300mA |
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Feedback Contact |
24V DC – 300mA Max |
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Operating temperature range |
-20℃ – +50℃ |
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Storage temperature range |
-40℃ – +85℃ |
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Protection Degree |
Class II |
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DC Switch Disconnect according to |
EN60947-1, DIN VDE 0100-712 |
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Number of operations |
2000 |
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Number of operations under load |
>1000 |
Advantages of Firefighter Safey Switch
Fire safety
PV systems generate electricity from the sun’s rays and can be connected to the grid. In the event of a fire, it can be dangerous for emergency personnel to work near active photovoltaic systems because of the risk of electric shock. A fire brigade switch enables a quick and easy disconnection of the power supply to the PV system, reducing the risk of damage and facilitating fire-fighting operations.
System maintenance
The fireman’s switch also allows maintenance personnel or PV installers to safely perform work on the PV system by disconnecting the power. This is important for carrying out regular inspections, maintenance and possible servicing of the system.
Grid connection
If the PV system is connected to the grid, the fire brigade switch can be used to disconnect the power supply from the PV cells to the grid in case of emergency. This can help to prevent possible power reductions or dangerous conditions for electricians during repairs or maintenance of the electricity network.
Fire Elevator System
The firefighter safety switch is a dedicated control device for fire elevators, used to enable emergency landings and special operations in the event of a fire. Firefighters shatter the glass on the switch panel, triggering the elevator to descend to the ground floor (or a designated floor) while keeping the doors open. At this point, the other floor buttons become inoperative, allowing the firefighter to directly control the elevator from within the car to the desired floor, preventing unauthorized use and the resulting danger.
Fire Pump Control System
Although fire pump switches (such as manual/automatic switches, flow switches, and pressure switches) and firefighter safety switches belong to different categories, both are part of fire emergency equipment. By controlling elevator operation, the firefighter safety switch indirectly ensures rapid startup and stable water supply for the fire pump, forming a complete fire alarm linkage system.
Smart Buildings and Fire Alarm Linkage Systems
In modern smart buildings, firefighter safety switches can be integrated with building automation systems (BAS) and fire alarm systems (FAS) to enable remote monitoring and intelligent control. For example, through IoT technology, fire departments can obtain real-time elevator operating status and remotely trigger emergency landings.
Industrial and Specialty Firefighting
In special locations such as chemical plants, nuclear power plants, and tunnels, firefighter safety switches must meet explosion-proof, dust-proof, and high-temperature resistance requirements to ensure they can function properly even in extreme environments.
Emergency Drills and Training
Firefighter safety switches are important teaching aids in firefighting training. By simulating fire scenarios, they train firefighters to operate the switches effectively and enhance their emergency response capabilities.
Functions of Firefighter Safey Switch
Manual control
Allows personnel to manually activate fire fighting equipment, such as water pumps and sprinklers, to extinguish the initial stage of a fire.
Automatic control
Connected to the fire alarm system, automatically triggering fire fighting equipment when fire detectors detect a fire source.
Emergency cut off
In specific situations, such as when the fire has spread beyond control, it cuts off non essential power sources to prevent the fire from spreading further.
Components of Firefighter Safey Switch
Faceplate
Features prominent external markings, typically in red, such as "For Firefighters Only." A breakable glass panel is included for easy access in emergencies.
Backplate
The internal structure is simple, primarily consisting of a rocker switch (also known as a rocker switch or O switch). Pressing the O position switches the switch to off/off, while pressing the other side switches the switch to on/off. The backplate is secured to the wall with screws.
Terminal Blocks
Internally, there are three terminals (1a, 1b, and a common point), forming two groups of terminals (one normally open, one normally closed). When wiring, select the normally open terminal and connect it in series with the control circuit to enable forced landing.
Working Principle of Firefighter Safey Switch
Location: The switch is typically installed near the building’s main electrical service panel or close to the solar PV system components, ensuring easy access for emergency personnel.
Activation: In an emergency, firefighters or other responders can activate the safety switch either manually, by flipping a switch or pressing a button, or remotely, using wireless communication or another control mechanism.
Rapid shutdown: Once activated, the safety switch initiates a rapid shutdown process. This involves breaking the electrical connection between the solar panels and the building’s electrical system, including the inverter and the main electrical panel.
Reduced voltage: The rapid shutdown system reduces the voltage of the solar panels to a safe level, typically below 30 volts within 30 seconds, as per the requirements of the National Electrical Code (NEC) in the United States. This voltage reduction minimizes the risk of electric shock for emergency personnel.
Isolation: With the solar panels isolated from the rest of the electrical system, firefighters can safely perform their duties, such as extinguishing fires or rescuing occupants, without the danger of live electrical circuits.
Restoration: Once the emergency situation is resolved, the rapid shutdown system can be deactivated, allowing the solar panels to resume normal operation and reconnect with the building’s electrical system.
FAQ
We're professional firefighter safey switch manufacturers and suppliers in China, specialized in providing high quality customized products. We warmly welcome you to buy firefighter safey switch made in China here from our factory.
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