Firefighter Safety Switch
Safety solution for fighting a fire in the house with PV system
Why Need Our Firefighter Safety Switch?
Fatal Risk: Fighting a Fire in the House with PV System
According to the standard international safety routine, in the event of a fire, the first step for any firefighter in fighting a fire is to shut down the main AC power circuit. This makes a place for firefighter to fighting a fire without the risk of electrocution.
However, it is still danger for fighting a fire if the house has photovoltaic systems, even the firefighter find the DC isolator and shut it down manually.
Since 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 Vdc. That left firefighters facing a very serious of potential electrocution danger.
The Solution with Our Firefighter Safety Switch
Our firefighter safety switch (AFS) provides the solution. It directly disconnects the DC current in closest to the solar panels automatically and creates a safer situation for firefighters.
1. The firefighter turn off the AC power manually
No more action needed, just like fighting the fire in the house without photovoltaic system.
2. The firefighter safety switch will shut down the DC power automatically
If the firefighter safety switch detect no AC current more than 5 seconds, it will automatically cut off the DC current at once.
Main Functions
AC OFF = DC OFF Auto
If AFS detect no AC current, it will automatically cut off the DC power at once.
70°C = DC OFF Auto
If AFS detect the temperature is above 70°C, it will automatically cut off the DC power at once.
AC ON = DC ON Auto
If AFS detect the AC power is back, it will turn on the DC power automatically.
Main Features
1. TUV Certificate
The world No.1 authority certification of string level Firefighter Safety Switch.
2. Up to 10 Strings
Match for 1/2/3/4/5/6/7/8/9/10 Strings PV system.
3. Breathable
The breathing valve of the enclosure greatly reduce the condensation inside.
4. Indicator Light
The LED indicator light display the status (on/off) of the DC power. It can be seen well at all times of the day.
5. Extended Module
With an extra wiring, an extra indicator light could be leaded to wherever you want.
6. Easy Installation
Mounting 2/4 screws; Connecting/plug in the aviation socket&MC4s.
Main Ratings
| Item | Ratings |
|---|---|
| Number of Strings | 1-10 |
| String Voltage | 300-1500 (Vdc) |
| String Current | up to 55(A) |
| Operating Voltage | 100-270 (Vac) |
| Rated Current | 30 (mA) |
| Automatic Switch off | ≥+70°C |
| According to | EN IEC 60947-1&3 |
| Electrical Life | ≥300 Cycles |
| Mechanical Life | ≥1500 Cycles |
| Operating Temperature Range | -20°C – +50°C |
| Storage Temperature Range | -40°C – +85°C |
| Protection Degree | IP 66 |
| Protection Level | Class II |