Skip Content

Want to pay an invoice? Please call us at 1-800-GRAINGER (1-800-472-4643).


Phase And Motor Rotation Tester, 100 to 600VAC Voltage Range

  • Item# 2NRW3
  • Mfr. Model# PRM-4
  • Catalog Page# N/A
  • UNSPSC# 41113602
Phase And Motor Rotation Tester, 100 to 600VAC Voltage Range close
close x

Using 360° Viewing:

  1. Rotate: Use top-to-bottom, side-to-side by use of mouse arrow.
  2. Zoom In: Double click on image.
  3. Zoom Out/Reset: Put photo at full zoom & then double click.
Megaphone How can we improve our Product Images?

Price $142.95 / each

Activate Now

to save with

Select AdvantageSM

Please sign in or register to access lists

Please sign in or register to access Quote

Jump to:
  • Shipping Weight 1.46 lbs.
Country of Origin Taiwan Country of Origin is subject to change.
Note: Product availability is real-time updated and adjusted continuously. The product will be reserved for you when you complete your order. More

Product Details

Motor Rotation Indicators and Testers
• Phase rotation
Ensure correct motor installation by identifying the phases and rotation, preventing damage to the motor or electrical system.
Phase and Motor Rotation Tester
Checks 3-phase sequence and open phase, and indicates motor shaft rotation. Includes 3 Cat III-rated color-coded test leads, large alligator clips, 9V battery, and zippered carrying case. Cat III 600V.

View More

Technical Specs

  • Item Phase And Motor Rotation Tester
  • Voltage Range 100 to 600VAC
  • Frequency Range 45 to 70Hz
  • Display LED
  • Safety Rating CAT III 600 V
  • Motor Rotation Yes
  • Phase Rotation Yes
  • Phase Voltage Present Indicator Yes
  • Includes (3) Test Leads with Alligator Clips, Soft Vinyl Case, 9 Volt Battery and Instructions
  • Manufacturers Warranty Length 1 Year
Megaphone How can we improve our Technical Specifications?

Compliance and Restrictions

  • This item is restricted for international sale.

Alternate Products

Alternate Products may not be identical in style or function to original selection. Please compare below for more information.

Customer Reviews

Rated 5 out of 5 by 5reviewers.
Rated 5 out of 5 by Emergency Generator Must Have This tester will allow you to hook up your 3 phase generator or motor and know the rotation without having to turn the equipment on and guess. In the case of emergency generators matching your utility phasing, you need to know the rotation. Trust me. May 26, 2015
Rated 5 out of 5 by Must have tool to check phases This is a must have tool, very useful in checking phase sequence. These type items make it clear that the rotation is correct. Used often after storm restoration to check the service has been connected correctly for the air conditioners. The easy to use hook up of the leads makes for a sure and true connection and that phase or rotation is running in the correct direction. March 27, 2012
Rated 5 out of 5 by first time's a charm Great rotation meter.No more 50/50 chance of proper phase rotaion. Get it right the first time, every time!A must have for motor loads in which wrong rotation will cause equipment damage.Simple, precise, and long test leads are a plus. November 23, 2011
Rated 5 out of 5 by This product is user friendly with fast results In an industrial environment three phase motors are predominant and having this phase sequence tester in my tool bag has made me more efficient at my job November 16, 2011
Rated 5 out of 5 by work great we just got the amprobe phase sequence and motor rotation tester to test pump motors and has work great for us November 16, 2011
  • 2015-09-08T19:48:00.376-05:00
  • bvseo_lps, prod_bvrr, vn_prr_5.6
  • cp-1, bvpage1
  • co_hasreviews, tv_5, tr_5
  • loc_en_US, sid_2NRW3, prod, sort_default
1-5 of 5

Product Reviews Disclaimer:
Grainger is neither responsible for, nor does it endorse, the content of any product review or statement posted. Any statements posted constitute the statements of the poster and are not the statements of Grainger. The statements posted by Grainger employees with the Grainger employee badge represent the views of such employees and are not the statements of Grainger. Grainger makes no representations as to the appropriateness, accuracy, completeness, correctness, currentness, suitability, or validity of any product review or statements posted, including those posted by employees with the Grainger employee badge, and is not liable for any losses, injuries or damages which may result from any such product review or statements. Use of any linked web site provided in a product review or post is at the user's own risk.