ST420H Microprocessor Line Protection Relay | Advanced Feeder Protection
ST420H Microprocessor Line Protection Relay | Advanced Feeder Protection
Description
ST420H Microprocessor Line Protection Relay
The ST420H1/2 series is an advanced microprocessor-based line protection device with integrated protection body and display module. Designed for feeder circuits with rated frequency 50/60Hz and rated voltage below 1kV.
Key Features
- Integrated protection body with built-in display module
- Suitable for feeder circuits rated 50/60Hz, below 1kV
- Includes dedicated current transformer (CT)
- Includes zero-sequence current transformer for ground fault detection
- Advanced microprocessor-based protection logic
- OEM/ODM available — Suzhou manufacturer
Applications
Ideal for low voltage switchgear panels, power distribution boards, and industrial feeder circuit protection requiring advanced relay functionality.
Request a quote or technical datasheet — contact Wanlong Electric today.
Care
To maintain the beauty and integrity of your purchase, we recommend treating it with care. Simple maintenance practices, such as gentle washing and proper storage, can effectively preserve the longevity of your favorites. We encourage you to refer to the care instructions included with each item, designed to help you keep your purchase in top condition.
Design
Our dedication to excellence extends beyond materials; it encompasses the artistry and craftsmanship illustrated in every piece we create.