Name: Buy Megger MTO250 50 A Transformer Ohmmeter
Brand: Megger
SKU: 83345

Megger MTO250 50 A Transformer Ohmmeter

The Megger MTO250 50 A transformer ohmmeter is a field-portable, line-operated tool engineered for precisely measuring the resistance of various magnetic windings, including transformers, shunt reactors, and rotating machinery. It is designed to conduct safe and accurate tests and can also measure low resistance in connections, contacts, and control circuits.

The MTO250 transformer ohmmeter features two potential inputs that allow for simultaneous resistance measurement of two primary windings, two secondary windings, or one of each. This capability of dual reading and injection streamlines the testing process, making it significantly more efficient.

Megger MTO250 Key Features

Capable of testing transformers up to 1000 MVA
DC test current up to 50 A maximum
Integrated demagnetisation feature
Computer control and internal data storage
Validates proper operation of on-load tap changers
Protected against accidental current lead disconnection (through potential leads)

Megger MTO250 Specifications

Specification	Details
Input	85-264 VAC, 47-63 Hz, 1500 VA
Output Current Ranges	1 A / 10 A / 25 A / 50 A
Open Circuit Voltage	50 V DC
Resistance and Current Measurement/Display
50 A	10 µΩ to 0.04 Ω, Resolution: 0.0000001 Ω
	0.04 Ω to 0.4 Ω, Resolution: 0.00001 Ω
25 A	10 µΩ to 0.08 Ω, Resolution: 0.0000001 Ω
	0.08 Ω to 0.8 Ω, Resolution: 0.00001 Ω
10 A	10 µΩ to 0.2 Ω, Resolution: 0.000001 Ω
	0.2 Ω to 2 Ω, Resolution: 0.0001 Ω
1 A	100 µΩ to 2 Ω, Resolution: 0.00001 Ω
	2 Ω to 20 Ω, Resolution: 0.001 Ω
Accuracy and Resolution	Typical Accuracy: ±0.1%, Guaranteed Accuracy: ±0.25%
Current Resolution and Accuracy	4 digits, ±0.25%
Computer Interface	Via Ethernet port
Internal Data Storage	9 groups, 99 results per group
LTC Make-Break Transition Settings	2 ms, 20 ms, 50 ms, 80 ms
Safety/EMC/Vibration	Conforms to EN61010-1, ISTA 1A, EN61326
Environmental	Operating: -10°C to 50°C, Storage: -25°C to 70°C, Humidity: 0-90% RH
Dimensions and Weight	8.5 x 21.5 x 13 inches, Unit: 30 lb, Optional leads: 29 lb, In case: 96 lb

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Brand

Megger

Megger since 1889 is a leading global premium manufacturer of measurement and testing technology. Megger top priority has always been to make your everyday work easier and safer. As such, insulation testers, micro-ohmmeters, and multimeters are among the long line of Megger inventions, making this brand one of the pioneers in the electrical industry. Megger products combine many years of experience and the valued feedback from our global users with the inventiveness and conscientiousness of our product developers. In Germany, we manufacture at three sites, Aachen, and Baunach near Bamberg and Radeburg near Dresden. Other manufacturing locations are based in Sweden, England, and America.

Datasheet

Specifications

Specification	Details
Input	85-264 VAC, 47-63 Hz, 1500 VA
Output Current Ranges	1 A / 10 A / 25 A / 50 A
Open Circuit Voltage	50 V DC
Resistance and Current Measurement/Display
50 A	10 µΩ to 0.04 Ω, Resolution: 0.0000001 Ω
	0.04 Ω to 0.4 Ω, Resolution: 0.00001 Ω
25 A	10 µΩ to 0.08 Ω, Resolution: 0.0000001 Ω
	0.08 Ω to 0.8 Ω, Resolution: 0.00001 Ω
10 A	10 µΩ to 0.2 Ω, Resolution: 0.000001 Ω
	0.2 Ω to 2 Ω, Resolution: 0.0001 Ω
1 A	100 µΩ to 2 Ω, Resolution: 0.00001 Ω
	2 Ω to 20 Ω, Resolution: 0.001 Ω
Accuracy and Resolution	Typical Accuracy: ±0.1%, Guaranteed Accuracy: ±0.25%
Current Resolution and Accuracy	4 digits, ±0.25%
Computer Interface	Via Ethernet port
Internal Data Storage	9 groups, 99 results per group
LTC Make-Break Transition Settings	2 ms, 20 ms, 50 ms, 80 ms
Safety/EMC/Vibration	Conforms to EN61010-1, ISTA 1A, EN61326
Environmental	Operating: -10°C to 50°C, Storage: -25°C to 70°C, Humidity: 0-90% RH
Dimensions and Weight	8.5 x 21.5 x 13 inches, Unit: 30 lb, Optional leads: 29 lb, In case: 96 lb