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Amprobe AMB-50 Industrial High-Voltage Insulation Tester

by Amprobe

List Price: $849.95
Price: $708.19 & FREE Shipping. Details
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  • Insulation resistance meter with built-in voltmeter to test insulation of wires, cables, transformers, surge arresters, generators, and electrical motors
  • Digital meter with automatic range selection
  • Internal memory stores up to 18 measurements for later download to PC using USB
  • Measures voltage from 30 to 600V AC or DC and insulation resistance from 0 to 1 teraohm with 500, 1,000, 2,500, and 5,000V DC test voltage
  • Safety rated to European Standard EN 61010-1 Category III 600V
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Technical Details

  • Brand Name: Amprobe
  • Part Number: 3730288
  • UPC: 095969556965, 013227080151

Product Description

The Amprobe AMB-50 industrial high-voltage insulation resistance tester is a digital meter that measures insulation resistance and voltage to help reduce shock hazards and downtime on electrical systems that include wires, cables, transformers, surge arresters, generators, and electrical motors. The tester has automatic range selection for increased safety. The unit measures 0 to 600V alternating current (AC) or direct current (DC) and insulation resistance from 0 to 1 teraohms using 500, 1,000, 2,500, or 5,000V DC test voltage. A low-resistance range (0 to 4,000 ohms) is used to measure resistance in motor windings. The internal memory holds up to 18 test results for later download to a PC using the included USB cord. The tester is safety rated to European Standard (EN) 61010-1, Category III, 600V. The unit has a programmable timer to perform Dielectric Absorption Ratio Tests, Polarization Index (PI) tests, and comparison tests. The tester is powered by eight C batteries (included). The AMB-50 is designed for use by electricians and electrical contractors.


Power supply (8) C batteries (included)
Insulation resistance range 0 to 1 teraohm
Test voltages 500, 1,000, 2,500, or 5,000V DC
AC and DC voltage range 30 to 600V
Weight (including batteries) 4.4 lbs./2kg
Dimensions 202 x 155 x 94mm (H x W x D)

H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.

Electrical test meters report electrical circuit properties, such as voltage, resistance, capacitance, and continuity. Available in handheld or benchtop form, they detect electrical problems in equipment, wiring, and power supplies. A variety of probes, clamps, and leads can be used to connect the meter to a circuit or device. Single-function meters, such as battery testers and voltage testers, measure one property of a circuit, and multimeters measure multiple properties. Electrical test meters display information either in analog form using a needle that moves on a calibrated scale, or in digital form using digits or a graphic representation on an LED screen. Meters have electrical properties that are to be measured and the anticipated range of results, and should have a rating that is higher than the maximum value of the anticipated range. An electrical test meter has multiple settings corresponding to potential ranges of values for the properties it can measure. A manual ranging meter requires the operator to flip through different settings until the correct range is reached. An autoranging meter cycles through range settings automatically until it reaches the correct range.

Amprobe manufactures electrical testing equipment for commercial, industrial, and home use. The company was founded in 1948 and is headquartered in Everett, WA.

What’s in the Box?

  • AMB-50 Industrial High-Voltage Insulation Resistance Tester
  • (1) Set test leads
  • (1) Set large-jaw alligator clips
  • PC software
  • USB cable
  • (8) C batteries (installed)
  • Carrying case
  • Instructions

Product Information

Technical Details
Part Number 3730288
Item Weight4.4 pounds
Product Dimensions12.8 x 12.6 x 4.9 inches
Item model numberAMB-50
Item Package Quantity1
Temperature Range0/50 °C
Display StyleLiquid Crystal Display (LCD)
Technical Specification
Additional Information
Best Sellers Rank #399,759 in Home Improvement (See top 100)
Shipping Weight10.1 pounds (View shipping rates and policies)
Domestic Shipping Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
International Shipping This item is not eligible for international shipping. Learn More
Date First AvailableJuly 7, 2011
Warranty & Support

Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Amprobe AMB-50 Industrial High-Voltage Insulation Tester
This item: Amprobe AMB-50 Industrial High-Voltage Insulation Tester
Price: $708.19
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