150VDC T2 Class Surge Protective Device with 40kA Discharge Capacity

This 3pole surge protective device is designed for 150VDC electrical systems, providing reliable protection against transient overvoltages and lightninginduced surges. With a maximum discharge current of 40kA and T2 classification, the device offers robust surge protection for various DC applications. The red plastic housing ensures easy identification while maintaining electrical insulation properties. Suitable for both industrial and commercial use, this protector helps prevent equipment damage caused by electrical surges.

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Technical Features

The device incorporates a threepole design that provides comprehensive protection for positive, negative, and ground lines in DC systems. Its 20kA standard discharge capacity ensures consistent performance under normal surge conditions, while the 40kA maximum rating offers protection against more severe electrical events. The T2 classification indicates compliance with international standards for surge protective devices, particularly for handling indirect lightning effects.

The builtin thermal disconnect mechanism enhances safety by automatically isolating the device during overload situations. A visual status indicator allows for quick operational assessment, while the DIN rail mounting design facilitates straightforward installation in standard electrical enclosures. The screw terminal connections provide secure wiring implementation for reliable longterm performance.

Application Scenarios

This protective device is suitable for use in photovoltaic systems, particularly for protecting DC sides of solar installations and charge controllers. Industrial applications include protection for motor drives, control systems, and automation equipment operating at 150VDC. The device also provides effective surge protection for telecommunications infrastructure, base station power systems, and various industrial DC power supplies.

Additional applications include electric vehicle charging equipment, railway signaling systems, and backup power installations. The unit can be used in both indoor and sheltered outdoor environments when installed in appropriate enclosures, providing versatile protection solutions for different electrical systems.

Technical Specifications

Maximum discharge current: 40kA (8/20μs)

Standard discharge current: 20kA (8/20μs)

Type: T2

Rated voltage: 150VDC

Protection Level: ≤4.0kV

Number of poles: 3P

Housing material: Plastic

Protection mode: Linetoline and linetoground

Response time: <25ns

Operating temperature: -45°C to +85°C

Mounting: DIN rail (35mm)

Connection: Screw terminals

Status indication: Visual indicator

Standards: IEC 6164311

Performance Characteristics

The device maintains stable operational characteristics across its specified temperature range, providing consistent surge protection throughout its service life. The design focuses on reliability and safety, with particular attention to proper operation under DC voltage conditions. The product meets relevant international standards for surge protective devices, ensuring quality and performance for electrical system protection applications.