Type 1+2 DC Surge Protection Devices

G20-B+C/7-15/30 Type1+2 Surge Protective Devices

The G20-B+C Type 1+2 SPD provides combined surge protection from 7kA to 30kA. Compact and reliable, it safeguards electrical systems from transient overvoltage and lightning surges.

Product Features

The G20-B+C series surge protector integrates Type 1 and Type 2 protection in a compact, high-performance design. With a discharge capacity of 7–30kA, it effectively shields power systems from lightning and switching surges. Constructed from high-quality flame-retardant materials, it features thermal disconnection, visual indicators, and a modular replaceable cartridge. DIN rail mounting ensures simple installation and easy maintenance.


Technical Parameters

  • Type: Combined Type 1+2 SPD
  • Nominal Voltage (Un): 230/400V AC
  • Nominal Discharge Current (In): 7–30kA
  • Maximum Discharge Current (Imax): 30kA
  • Response Time: ≤25ns
  • Protection Level (Up): ≤1.5kV
  • Mounting: 35mm DIN rail
  • Material: Flame-retardant thermoplastic
  • Status Indicator: Visual window display
ParameterSpecification
Product SeriesG20-B+C/7-15/30
TypeType 1+2 Surge Protective Devices
Max Continuous Operating Voltage (Uc)280V, 320V, 385V, 440V, 600V
Nominal Discharge Current (In)7kA
Max Discharge Current (Imax)15kA (for 7kA nominal), 30kA (for 15kA nominal)
Lightning Impulse Current (Iimp)4kA
Voltage Protection Level (Up)1.5kV – 2.5kV
Response Time25ns
Operating Temperature Range-40°C to +80°C
Installation35mm DIN rail according to EN 60715
Degree of ProtectionIP20
CertificationsTUV, CB, CE, RoHS, CQC
Additional FeaturesHigh energy surge protection, failure alarm prompt, pluggable design, easy replacement without system interruption
DimensionsApprox. 72mm × 46mm × 90mm
WeightVaries by model, roughly 80g to 400g

Application

This DIN rail combined SPD is suitable for low-voltage distribution panels, switchboards, telecommunication equipment, and control systems. Ideal for residential, commercial, and industrial environments, it protects sensitive electrical devices from surge and lightning-induced damage.


Why Choose Us

We are an experienced surge protective device manufacturer with extensive export expertise. Our SPDs comply with IEC 61643 standards, ensuring stable performance and long service life. We offer OEM/ODM customization, fast global delivery, and professional technical support to meet your business needs.

FAQ

What is the nominal discharge current range of the G20-B+C series?

The nominal discharge current ranges from 7kA to 30kA, making it suitable for various power surge protection applications.

Which international standards do these devices comply with?

The devices comply with EN 61643-11 and IEC 61643-11 standards, ensuring high reliability and safety.

What is the typical response time of these surge protectors?

They have a very fast response time of around 25 nanoseconds, enabling fast suppression of transient surges.

What is the operating voltage range supported?

The series supports maximum continuous operating voltages up to 600V AC, adaptable to a wide range of electrical systems.

How does the device indicate its status?

Visual fault indication is provided with green for normal operation and red for fault status, facilitating easy device monitoring and maintenance.

Request a Quote Now

Our team will get back to you within 24 hours.