Automatically Disconnects The DC Supply on a Solar PV System When The AC Grid Supply Is Interrupted-Firefighter Safety Switch Dfs

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Product Description

Basic Information
Model NO.
ERS-2/4 Series
Ithe
55A
Connector
Glands/Mc4/Knock Outs
String
4-String
Pole
8p
Certificate
CE TUV CB SAA
Warranty
5 years
OEM
Acceptance
Transport Package
by Sea/Air/Courier
Specification
4 units/Carton
Origin
China
HS Code
850440
Firefighter Safety Switch
Key Features & Reasons to Choose
  • 1Applicable to a wide range of voltage and current (600V~1500V, 9A~55A); can turn off up to 10 strings simultaneously.
  • 2Wider range of AC voltage support: 100~270Vac.
  • 3Internal motor drive for disconnection; can be operated via AC switch or remotely.
  • 4LED indicator for easy identification of ON/OFF status.
  • 5IP66 level protection, fully suitable for outdoor installation.
  • 6Equipped with a breathing valve to avoid condensation inside the enclosure.
  • 7Low noise during operation, ensuring no impact on daily life.
  • 8Built-in temperature sensor; automatic shutdown if temperature exceeds 70°C.
  • 9Multiple connection options: Knock outs, Cable glands, or MC4 connectors.
  • 10Modular component design for fast and convenient service.
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Frequently Asked Questions
When can I receive a quotation after sending an inquiry?
All inquiries will be replied to within 24 hours with detailed information.
What is the difference between your DC Isolator and cheaper alternatives?
Our DC Isolators feature an IP66 protection degree and high-quality customization. For solar systems, we recommend prioritizing quality to ensure long-term safety.
Can I request a sample before placing a full order?
Yes, we encourage sample orders as the best way to verify product quality and build mutual trust.
What is the expected delivery time?
Sample orders typically take 3-7 days. Regular bulk orders are promised within 15 days.
What is the warranty period for the DC Isolator?
We offer a warranty period of 2 to 5 years depending on the specific product model.
Is the device suitable for extreme outdoor conditions?
Yes, with an IP66 rating and a built-in breathing valve to prevent condensation, it is designed specifically for durable outdoor performance.

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