IEC 60529 (Edition 2.1): 2001 (Combined Over Current / Earth Fault Relay) Models: DP-34, DP-10, DP-21, DP-23, DP-31, & DP-33

Delab Scientific Sdn Bhd was established in 1998, a leading supplier of digital and micro-processor based protection relays, power factor controllers, digital power monitoring meters, voltage monitoring relays and Timers.