PV Rapid Shutdown Devices | Firefighter Safety Switches

Why Rapid Shutdown Device Are Essential

Rapid Shutdown Devices (also known as Firefighter Safety Switches ) are critical safety components in photovoltaic systems. During fire emergencies, these devices enable first responders to quickly de-energize DC power from solar panels, preventing electrical hazards and ensuring safe access for rescue operations. ETEK's safety switches meet international standards and provide reliable performance under extreme conditions.

Safety Alert: When PV systems on buildings have DC voltages above 80V, electrical codes usually require installing Firefighter Safety Switches (Rapid Shutdown Devices).

These devices quickly reduce DC voltage to a safe level in emergencies, protecting firefighters from electric shock.

Key Safety Benefits

Instant DC power disconnection
Eliminates electrical shock risks
Enables safe building access
Code compliance assurance
Automatic thermal protection

Our Rapid Shutdown Device Products

Product	Model	Max Voltage	Max Current	String Support	Protection	Key Features	Action
	EKFS-50-1	1500VDC	50A	1 String	IP65	Standards Compliance: EN60947-3 Max Voltage: 1500VDC Housing Material: PC+ABS	View Details
	EKFS-50-2	1500VDC	50A	2 String	IP65	Standards Compliance: EN60947-3 Max Voltage:1500VDC Housing Material: PC+ABS	View Details

EKFS-50 Series - Industry Advanced Performance

Our flagship rapid shutdown devices combine maximum safety with ease of installation. Supporting both single and dual PV strings, these devices handle high-voltage systems up to 1500VDC while providing automatic thermal protection for enhanced safety.

300-1500VDC Range

IP65 Weather Protection

70°C Auto Shutdown

EN60947-3 Compliant

50A

Maximum Current

1500VDC

Maximum Voltage

Universal Technical Specifications

Electrical Parameters

DC Voltage Range:300-1500VDC

Maximum Current:50A at 1000VDC

AC Power Supply:100-270VAC, 50Hz

Switch Standard:EN60947-3

Environmental & Mechanical

Protection Rating:IP65

Operating Temperature:-20°C to 70°C

Thermal Shutdown:70°C

Mechanical Life:9,700 cycles

Application Scenarios

Commercial Buildings

Office buildings, shopping centers, and warehouses with rooftop solar installations requiring rapid shutdown device protection.

Industrial Facilities

Manufacturing plants and industrial complexes with large-scale PV arrays where rapid shutdown device safety is paramount.

Residential Solar

Multi-family housing and residential complexes requiring rapid shutdown device for enhanced safety measures.