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Firefighter Safety Switch (String-level RSD)

PEFS-EL Series (1~2 Strings)

PEFS-EL Series (3~5 Strings)

PEFS-EL Series (6~10 Strings)

Firefighter Safety Switch (String-level RSD)

PROJOY PEFS-EL Series String-level Firefighter Safety Switch can be applied to residential and C&I solar PV projects, its maximum loop voltage can be up to 1500V which meets the requirements of high-power panel. In case of emergency, it can quickly cut off the high voltage between the PV Modules and the solar inverter, ensuring the safety for your photovoltaic system.

Product DataSheet

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Products Category

Rapid Shutdown Device

String-Level Rapid Shutdown Device Features

• Plug-in & Plug-out, for New and Existing solar projects	• FB function, Applicable for Fire alarm system
• IP65, Suitable for Residential, Commercial & Industrial installations (1-10 Strings)	• Multiple devices connection
• Automatically shuts off when ambient temperature exceeds 70°C	• Arc extinguishing within 5ms

High Craftsmanship and High Standards

Max 1500V / Max 55A

Flame retardant UL94-V0

Easy Installation

Physical Isolation

Outdoor Installation IP65

Over temperature protection > 70℃

FB1 FB2 function achieves external monitoring

PEFS Series Firefighter Safety Switch Models

PEFS-EL Series (1~2 Strings)

PEFS-EL Series (3~5 Strings)

PEFS-EL Series (6~10 Strings)

String-Level RSD Technical Specifications

Technical Parameter	1–2 Strings	3–5 Strings	6–10 Strings
System Voltage	300–1500V	300–1500V	300–1500V
Maximum Current	55A	55A	55A
Number of PV Strings	1 / 2	3 / 4 / 5	6 / 8 / 10
Poles	2 / 4	6 / 8 / 10	12 / 16 / 20
Operating Voltage	AC 100–270V	AC 100–270V	AC 100–270V
Nominal Voltage	AC 230V	AC 230V	AC 230V
Operating Temperature	-40°C to +70°C	-40°C to +70°C	-40°C to +70°C
Automatic Overtemperature Shutdown	+70°C	+70°C	+70°C
Ingress Protection	IP66	IP65	IP65
Protection Class	Class II	Class II	Class II
Mechanical Life	10000	10000	10000
Electrical Life	>1500	>1500	>1500