Grading Guide

DQD 507 Rev. 2016-02-18 Page 1
Supplement to Certificate of Compliance
Certificate: 1160039 (LR 92886-37) Master Contract: 153555
The products listed, including the latest revision described below,
are eligible to be marked in accordance with the referenced Certificate.
Product Certification History
Project
Date
Description
70180070
2018-04-06
Covers two revised constructions of the 3-pole, 35-60A circuit breakers.
70107122
2017-04-18
Addition of an alternate stationary and moving contact on the 35-50A circuit
breakers.
70077406
2016-05-25
Update to Report 1160039 to cover revised construction of the QO230H.
2516417
2012-04-25
Increase in the VH ratings from 30A to 70A for the 1-pole circuit breakers.
2502249
2012-02-27
Revised construction of the QO(B), QO(B)-VH and QH(B), 3-pole, 15-30A,
circuit breakers.
2423526
2011-05-10
Revised construction of the QO(B), QO(B)-VH and QH(B), 3-pole, 15-30A
and the QO(B), 3-pole, 35-60A circuit breakers.
2381494
2011-01-11
Revised wire temperature rating on the #6 AWG conductors to 75C only.
2333628
2010-08-12
Addition of an arc stack on the QO(B), 3-pole, 10A circuit breakers.
2212629
2009-08-26
Revised construction of the QO(B)-H, 2-pole, 15-30A circuit breakers.
1978847
2007-12-13
Addition of an alternate arc chute/plate on the 240V, 35-60A, 10kA, 2- and
3-pole breakers.
1818390
2006-10-13
Revised toggle spring on the 60 and 70A, 1- and 2-pole circuit breakers.
1680965
2005-06-06
Addition of alternate case materials.