About MH Protection Relay

MH represents a legacy of design and development, specializing in power quality solutions, industrial electrical and its core expertise, electrical protection relays. The MH Protection Relays have its heritage dated since 1981 when designed by Mun Hean and manufactured by Kasuga of Japan, which launched a range of electronic relays that held its position as the market leader for decades.

Today, with its R&D wing, Mun Hean Technology Pte Ltd, MH continues this research and development tenacity. Anchored on the exclusive Mechanical Trip Button (MTB) fault indication system, the MH Protection Relays have undergone several generations of development. The MH Protection Relays are third-party tested by TÜV SÜD PSB in accordance with IEC standards for product safety, electromagnetic compatibility, environmental and mechanical testing.

The latest product development introduces a fully Digital Earth Leakage Relay (ELD) and Digital Earth Fault Relay (DTL EF18D). These relays are feature-packed; with self-health checks, memory, fault trip authentication, early fault warning, and built-in communication protocol. This new generation of relays is the first of its kind in line with industry 4.0 requirements.