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Projoy Firefighter Safety Switch 10 Pole 5 Strings with MC4 20A per String
#2: PEFS-EL40H-10-P2 Switches - Firefighter Safety
Projoy Firefighter Safety Switch Datasheet
Projoy Firefighter Safety Switch Installation Manual
String Level Rapid Shutdown Device – 3 to 5 Strings
Ensure maximum safety and compliance for your photovoltaic (PV) system with the String Level Rapid Shutdown Device. Specially designed to provide reliable string disconnection in the event of emergencies such as fire or grid power loss, this device is a critical safeguard for both residential and commercial solar installations.
By automatically disconnecting connected DC strings, the Rapid Shutdown device minimises potential risks and ensures peace of mind for homeowners, installers, and emergency responders.
🔑 Key Features
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Enhanced Safety – instantly disconnects DC strings during emergencies
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Automatic Shutdown – disconnects after AC power loss > 5 seconds
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Automatic Restart – resumes operation once AC power is restored > 5 seconds
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Durable Protection – housed in a robust IP66-rated enclosure, resistant to dust, moisture, and harsh conditions
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Supports Multiple Strings – designed for 3–5 string PV installations
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Peace of Mind – backed by a 5-year warranty
⚡ Technical Specifications
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Weight: 4kg
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Poles: 10
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Maximum Cable Size: 6 mm²
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Maximum Voltage: 1,500V DC
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Rated Current / Voltage Options:
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40A @ 1,000V
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30A @ 1,200V
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20A @ 1,500V
✅ Why Install a Rapid Shutdown Device?
With increasing safety regulations across the UK and EU for PV systems, a Rapid Shutdown Device is becoming a mandatory safety feature in many installations. It:
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Improves firefighter safety by quickly de-energising solar strings
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Prevents damage to equipment during emergencies
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Complies with evolving solar safety codes and standards
The String Level Rapid Shutdown Device (3–5 Strings) is the perfect choice for ensuring safe, reliable, and compliant solar installations.
