The MT190 Circuit Breaker Finder by Major Tech is an advanced tool designed for electricians and maintenance professionals to accurately locate circuit breakers and fuses on live electrical circuits. The unit consists of a Transmitter which plugs into the socket on the circuit you wish to isolate and a Receiver Scanner. The Transmitter sends signals along the cable to the distribution board, the operator simply runs the Receiver Scanner along the circuit breakers or fuses, and the scanner will automatically identify the correct breaker by means of a green LED and a continuous buzzer tone. 

Key Features:

  • Automatic Scanning Technology: Quickly and accurately identifies circuit breakers and fuses, minimizing the time spent on electrical troubleshooting.
  • Self-Calibrating Microprocessor: Ensures precise and reliable operation without manual adjustments.
  • Operates on 230V AC Circuits: Designed for 200-240V AC, 50Hz electrical systems, making it suitable for residential and commercial applications.
  • Built-in 30mA RCD (ELCB) Test Function: Tests residual current devices (RCDs) to verify their functionality, enhancing safety compliance.
  • Wiring Condition Indicator: The transmitter includes an LED display that helps diagnose socket wiring issues, including:
    • Correct Wiring
    • Open Ground
    • Reverse Polarity
    • Open Live
    • Open Neutral
    • Reverse Live and Ground
  • Visual and Audible Indicators: The receiver scanner provides a green LED indicator and a continuous buzzer tone when the correct breaker is identified.
  • Compact and Lightweight: The receiver measures 196 x 55 x 36mm and weighs only 148g, making it highly portable.

Specifications:

  • Voltage Range: 200-240V AC, 50Hz
  • RCD Trip Test: 30mA
  • Safety Specs: CAT III 600V
  • Battery: 9V (Included)

Applications:

  • Circuit Breaker Identification: Easily find and label circuit breakers and fuses without trial and error.
  • Electrical Maintenance and Safety Testing: Ideal for electricians working in residential, commercial, and industrial settings.
  • Wiring Diagnostics: The transmitter helps detect wiring faults before installation or maintenance work.
  • Testing RCD (Residual Current Devices): Ensures proper operation of safety switches, reducing the risk of electric shocks.

The MT190 Circuit Breaker Finder is an essential tool for any professional electrician, providing fast, accurate, and safe identification of circuit breakers, diagnostic wiring checks, and RCD testing, ensuring compliance with electrical safety standards.

Q: Can the MT190 Circuit Breaker Finder be used on de-energized circuits?
A: No, the MT190 is designed for live circuits (200-240V AC, 50Hz) and will not function on de-energized electrical systems.

Q: Does the MT190 require manual calibration?
A: No, the self-calibrating microprocessor ensures accurate operation without the need for manual adjustments.

Q: How does the RCD test function work?
A: The 30mA RCD test function in the transmitter simulates a fault current to check whether the residual current device (RCD) trips as expected, verifying its proper operation.

Q: What happens if the socket wiring is incorrect?
A: The built-in LED indicators on the transmitter display different wiring fault conditions, helping the user diagnose issues before proceeding with any electrical work.

All products must be installed by a licensed electrican. DIY electrical work is illegal and very dangerous.

Change of Mind
All products purchased from MJS Electrical Products & Supplies are backed by a thirty (30) day Peace of Mind Return Policy. All products returned must be in perfect unused condition, with all components, complete with original packaging. We will not allow returns on damaged or incomplete products. Proof of purchase is required. Should the product not be in original condition, please contact us before returning it as this may save you some unnecessary costs.

Damaged / Faulty Goods
If you find that the goods were damaged in transit or were faulty in some manner, please contact us within 24 hours of receiving the goods. We will organise for the return of the goods and arrange a credit towards your next purchase or send a replacement product. Customer will incur the cost of return postage and be credited the purchase price only. We recommend that you return your unwanted items using registered post or trackable courier. We can not be held responsible if returned items are lost in transit.

Warranties
Product warranties are governed by the respective manufacturers and / or suppliers warranty terms and conditions (available on request). We will not be liable to you or any third party for any loss suffered due to product failure. We will process product warranty claims through the respective manufacturers and/or suppliers. All warranties are void if the product is not installed by a licensed electrician.

PRODUCT INFO
SKU MT190
Model # MT190
Barcode # 6008229036071
Brand Major Tech
SHIPPING INFO
Shipping Weight 0.3790kg
Shipping Width 0.060m
Shipping Height 0.210m
Shipping Length 0.130m