Major Tech MT328 Industrial RCD (ELCB) Tester





Microprocessor controlled for accuracy and reliability
Direct readout of disconnection time
Display mA Sensitivity
Current setting 5mA to 1000mA
Indicates tripping phase angle
0° or 180° Phase angle selection
Operating voltage 100V to 450V L-E
Checks ELCB trip time and trip point sensitivity
Auto Off
Built-in 100s Timer
MT319 is an optional 3-phase adaptor

$1,483.90 inc. GST

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Major Tech MT328 Industrial RCD (ELCB) Tester

SKU MT328 Category


The MT328 is a Microprocessor controlled Industrial Earth Leakage tester designed to operate on 550V, 380V and 220V systems, or circuits with a maximum of 450V AC (L-E). The MT328 has been designed for ease of operation while still maintaining safety, reliability and accuracy thus providing consistent results throughout all operating ranges. The MT328 offers both the Trip Time and the Sensitivity at which the ELCB tripped.


Major Tech

Major Tech (Pty) Ltd was established in 1992, with a vision and mission of being the brand of choice, by consistently pushing the benchmark with innovative, high quality product developments, providing unparalleled service excellence and exceeding all expectations. The founder of Major Tech, comes with a vast knowledge and over 30 years of hands-on experience in the electrical industry and is the driving force behind the vision of the company. Being a values-based organisation, every decision and undertaking is underpinned by their core values.

Major Tech

Additional information

Weight 0.6 g
Dimensions 30 × 20 × 10 mm


Function Range Accuracy
Voltage Measurement 115V to 450V ± (5%)
Frequency Response 50/60Hz
Test Current 5mA to 1000mA
Measuring Range 0.1ms, 100s ± (1ms)
Phase Angle Selection 0° to 180°
Display Dual display
Enclosure Moulded case
Low Battery Indication Yes
Batteries 8 x AA
Weight 800g
Dimensions 170 x 120 x 95mm
Safety Specs IEC61010-1 CAT III 450V
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