Brochure

7-2
© 2019 Schneider Electric
All Rights Reserved
Selection Information Miniature Circuit Breakers
www.se.com/us
Class 500, 600
QO Miniature Circuit Breakers
QO™ Circuit Breakers
Circuit
Breaker
Type
Plug-on
QO QO-H QO-VH QH QOT
QO-
CAFI
QO-
VHCAFI
QO-
DF
QOVH-
DF
Bolt-on
QOB QOB-H
QOB-VH QHB
QOB-
CAFI
QOB-
VHCAFI
QOB-
DF
QOB-
VHDF
Unit Mount
Number of Poles 1 2 3 2 1 2 3 1
2, 3 [1]
1,2
3 1
1, 2 1, 2
1 1
Current Range (A)
10–70
10–200
[2]
10–100 15–100 15–70 15–125 15–100 15–70
15–
150
15–
30
15–30 15–30 15–20 15–20 15–20 15–20
Interrupting Ratings
UL/CSA
Rating
(kA)
(50/60 Hz)
120 Vac 10 10 10 10 22 22 22 22 22 65 65 10 10 22 10 22
120/240
Vac
10 10 10 10 22 22 22 22 22 65 65 10 10 22
208Y/120
240 Vac
[3]
10 10 22
22 [4]
65
277 Vac
480Y/277
Vac
DC Ratings
48 Vdc
5 [5] 5 [5] 5 [5]
60 Vdc
65 Vdc
125 Vdc
250 Vdc
500 Vdc
IEC 60947-2
(50/60 Hz) [6]
IEC
(Icu)
Special Ratings
CCC
Fed. Specs
W-C-375B/GEN
X X X X X X X
Other Standard
HACR [7]
NOM
HACR [7]
HACR
[7]
HACR [7] HACR [7]
Accessories and Modifications
Shunt Trip [8]
X X X X X X X X
X [9]
X X X
Undervoltage Trip
Auxiliary Switches [8]
X X X X X X X X
X [9]
X X X X
Alarm Switch [8]
X X X X X X X X
X [9]
X X X X
Handle Operators
Handle Padlock
Attachment
X X X X X X X X X X X X X X X X
Trip System Type
Thermal-magnetic
X X X X X X X X X X X X X X X X
Molded Case Switch X X X
Dimensions (1P Unit Mount)
Dimensions
(1P Unit
Mount)
in. (mm)
Height 3.5 (89) [1] 4.75 (121)
Width
0.75 (19) [1]
Depth 2.92 (74) [1]
Pages page 7-11
7
MINIATURE AND MOLDED CASE
CIRCUIT BREAKERS
[1] For dimensions for QOB2150VH, QOB3110VH, QOB3125VH and QOB3150VH, see page 7-80
[2] 2P 150–200 A requires 4P width.
[3] See the Supplemental Digest, Section 3 for corner grounded systems.
[4] 22 kA @ 240 Vac for 3P only.
[5] 1P and 2P, 10–70 A and 3P 10–60 A only.
[6] See the Supplemental Digest Section 10 for circuit breakers with IEC ratings.
[7] HACR on QO, QOB 1P 10–70 A, 2P 15–100 A, 3P 10–100 A; QOB-VH 1P 15–70 A, 2P 15–125 A, 3P 15–100 A.
[8] Factory-installed option only.
[9] Factory-installed accessories are not available on QOB-VH 2P150 A and 3P 110–150 A.
9/13/2019