Brochure
© 2019 Schneider Electric
All Rights Reserved
7-3
www.se.com/us
Miniature Circuit Breakers Selection Information
Class 500, 600
QO-GFI, QO-EPD, QOU, QOM Miniature Circuit Breakers
QO Circuit Breakers QOU Circuit Breakers
QOM1 and QOM2 Main
Circuit Breakers
Circuit Breaker
Type
Plug-on
QO-GFI
QO-
VHGFI
QO-EPD
QO-EPE
— — — —
Bolt-on
QOB-GFI
QOB-
VHGFI
QOB-EPD
QOB-EPE
— —
QOM1-VH QOM2-VH
Unit Mount — — — — — — —
QOU
QYU [10]
— —
Number of Poles 1 2 3 1 1 2 3 1 2 3 1 2 2
Current Range (A)
15–30 15–60 15–50 15–30 15–30 15–60 15–50 10–100 10–125 10–100 10–30 50–125 100–225
Interrupting Ratings
UL/CSA Rating
(kA RMS)
(50/60 Hz)
120 Vac 10 10 — 22 10 10 — 10 10 10 — 22 22
120/240 Vac — 10 — — — 10 — 10 10 10 — 22 22
208Y/120 — — 10 — — — —
240 Vac [11]
— — — — — — 10 — — 10 — — —
277 Vac — — — — — — — — — — 5 — —
480Y/277 Vac — — — — — — — — — — — — —
DC Ratings
48 Vdc — — — — — — —
5 [12] 5 [12] 5 [12]
— — —
60 Vdc — — — — — — —
5 [13] 5 [13] 5 [13]
— — —
65 Vdc — — — — — — — — — — — — —
125 Vdc — — — — — — — — — — — — —
250 Vdc — — — — — — — — — — — — —
500 Vdc — — — — — — — — — — — — —
IEC 60947-2
(50/60 Hz)
Icu
240 Vac — — — — — — — — — — — — —
415 Vac — — — — — — — — — — — — —
Special Ratings
CCC — — — — — — —
X [14] X [14] X [14]
— — —
Fed. Specs W-C-375B/GEN
X — — X — X X X X X X
Other Standard NOM — NOM
HACR [15]
— — —
Accessories and Modifications
Shunt Trip
— — — — — — —
X [16] X [16] X [16] X [16]
—
X [16]
Undervoltage Trip
— — — — — — — — — — — — —
Auxiliary Switches
X X X X X X X
X [16] X [16] X [16] X[16]
— —
Alarm Switch X X X X X X X
X [16] X [16] X [16] X [16]
— —
Handle Operators
— — — — — — — — — — — — —
Handle Padlock Attachment 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
Molded Case Switch — — — — — — — — X X — — —
Dimensions (1P Unit Mount)
Dimensions
(1P Unit Mount)
in. (mm)
Height 4.12 (103) 4.05 (103) 5.09 (129) [17]
5.60 (142)
[17]
Width
0.75 (19) 0.75 (19) 5.00 (127) [17]
5.07 (129)
[17]
Depth 2.92 (74) 2.92 (74) 3.47 (88) [17]
3.60 (91)
[17]
Pages page 7-11 page 7-17
See Section 1
NOTE: All circuit breakers on this chart are UL Listed and CSA Certified unless otherwise noted.
7
MINIATURE AND MOLDED CASE
CIRCUIT BREAKERS
[10] QYU is a UL 1077 supplementary protector.
[11] For information regarding 3Ø corner grounded systems see the Supplemental Digest, Section 3.
[12] 1P and 2P, 10–70 A and 3P 10–60 A only.
[13] QOU is UL Listed for 60 Vdc per pole 80–100 A, 1P; 80–125 A, 2P; and 70–100 A, 3P.
[14] 15–70 A 1P and 2P, 15–60 A 3P
[15] HACR on QOU 1P and 3P 15–100 A, 2P 15–125 A;
[16] Factory-installed option only.
[17] QOM1 and QOM2 dimensions are for 2-pole unit.
9/13/2019