CEM DT-903 Socket Polarity and Earth Leakage Tester

The CEM DT-903 Socket Polarity and Earth Leakage Tester is an essential tool designed for testing the safety and functionality of 3-wire 220V AC outlets and Earth Leakage Circuit Breakers (ELCB). This tester is particularly valuable for professionals in the electrical and construction industries, ensuring that installations meet required safety standards.

Powered directly by the unit under test, the DT-903 does not require an external power source, which enhances its convenience and ease of use in various settings. It adheres to stringent safety standards, complying with IEC61010/EN61010 and IEC61557-7/EN61557-7, ensuring that it meets international regulatory requirements for testing devices.

The tester is rated for CATIII 600V, providing a high level of protection when dealing with electricity sources up to 600 volts, making it safe for checking residential and commercial electrical systems. It also features a Type of Protection rating of IP40, which guards against solid objects larger than 1mm, though it is not protected against water ingress.

Designed to operate in a range of environments, the DT-903 functions optimally within a temperature range of 0ºC to 40ºC. This allows for flexibility in various climates and conditions, ensuring reliable performance whether in a cool basement or a warm attic.

CEM DT-903 Socket Polarity and Earth Leakage Tester specifications

•  Power supply:From unit under test
• Electrical safety:IEC61010/EN61010; IEC61557-7/EN61557-7
• Protection level:CATIII 600V
• Type of protection:IP40
• Operating temperature:0ºC to 40ºC
• Size(HxWxD): 128mm x 68mm x 30mm
• Weight: 185g