HYRM-27 Underground Gas Insulated Enclosed Metal Switchgear | 25kV, 1200A, IP66, UL 2914 Certified

Tired of bulky power measurement equipment that fails to fit in limited spaces while compromising accuracy? HYRM-27 Underground Gas Insulated Enclosed Metal Switchgear | 25kV, 1200A, IP66, UL 2914 Certified is engineered to solve your pain points—combining ultra-compact design, high-precision measurement, and reliable performance, perfectly suitable for scenarios where space is critical and accuracy is non-negotiable. Whether for three-phase circuit breakers or other compact power systems, it delivers consistent and stable operation underground, making it the ideal choice for modern power management.

Core Advantages: Why Choose RM-27 Underground Cabinet?

Ultra-Compact Design: Specifically designed for locations with critical dimension requirements (e.g., three-phase circuit breakers with a phase distance of 17.5mm), the RM-27 features a compact structure that saves valuable space without sacrificing functionality. Its streamlined design allows easy installation in underground pits, avoiding the occupation of surface space and blending seamlessly with the surrounding environment.

High-Precision Measurement: With accuracy Class 1, the RM-27 ensures precise measurement of low current values, providing reliable data support for power monitoring and management. It supports two common ratios (35/1 A and 64/1 A) to meet different application needs, ensuring accurate and consistent performance in various power scenarios.

Stable & Durable Performance: Adopting high-quality materials and strict manufacturing standards, the cabinet is built to withstand harsh underground environments. It operates stably within a wide ambient temperature range of -10 °C to +55 °C, with an insulation class of E (120 °C) and a rated insulation level of 0.72/3/- kv, ensuring long-term reliable operation without frequent maintenance.

Excellent Safety Protection: The secondary terminal of the RM-27 reaches IP20 protection level, effectively preventing dust and foreign objects from entering, ensuring the safety of internal components. It also meets IEC 61869-2 standards, with a rated short-time thermal current of 60×In/1s and continuous thermal current of 100% In, providing comprehensive safety guarantees for power systems.

Easy Installation & Maintenance: Equipped with female clamping connectors suitable for 0.2-1.5 mm² solid, stranded, or ferrule conductors, the RM-27 allows quick and convenient wiring. Its simple structure and standardized design reduce installation and maintenance costs, improving work efficiency for on-site operators.

Application Scenarios

The RM-27 Underground Cabinet is widely used in power systems where space is limited and high-precision current measurement is required. Its compact design and reliable performance make it particularly suitable for:

    Three-phase circuit breakers with a phase distance of 17.5 mm.

    Underground power distribution systems that require space-saving equipment .

    Indoor power monitoring scenarios with strict dimension requirements Power systems that need accurate low-current measurement.

    Industrial and commercial power distribution projects with high safety and stability requirements.

Complementary Products

To enhance the performance of your power distribution system, the following products are perfectly complementary to the RM-27 Underground Cabinet:

   UAK: Enables safe and simple fused voltage branch in distribution systems, with Umax 690V and Imax 10A.

   ZK 4-M6/M8: Provides safe and simple fused voltage branch, with Umax 400VAC and Imax 2A, suitable for matching use with RM-27.

Download Resources

For more detailed information about the RM-27 Underground Cabinet, you can download the following resources:

   Brochure: Energy Management Line (PDF)

  Product Sheet: RM-27 (PDF)

  Installation Guide: RM-27 (PDF)

Quality Assurance & After-Sales Service

We are committed to providing high-quality products and professional services. The RM-27 Underground Cabinet undergoes strict quality inspection before leaving the factory, complying with international standards and ensuring stable performance and reliable quality. Our after-sales team is available 24/7 to provide technical support, installation guidance, and maintenance services, solving your problems in a timely manner.

Contact Us

If you have any questions about the RM-27 Underground Cabinet, or need to customize specifications according to your project requirements, please contact us immediately. Our professional team will provide you with personalized solutions and quotation services.