Technical Data Bulletin

7-17
www.se.com/us
QO™ Mounting Bases QO™ and QOU Miniature Circuit Breakers
Class 652 / Catalog 0730CT9801, 0860CT0201
QO-CAFI Arc Fault Circuit Breakers, QO-CAFI, QO-DF, or QO-PDF circuit breakers, or
on QO2150, QO2175, or QO2200 circuit breakers.
Table 7.16: Factory-Installed Accessories for QO/QOB Circuit Breakers
Accessory Description
Rated
Voltage
Coil
Burden
Cat.
No.
Suffix
Accessory Description
Contact
Comb.
Max.
Voltage
Max.
Cat.
No.
Suffix
Shunt Trip
Trips the circuit breaker from a
remote location by means of a trip
coil energized from a separate
circuit. A 120 Vac shunt trip will
operate at 55% or more of rated
voltage. All other shunt trips will
operate at 75% or more of rated
voltage.
Application
For use with momentary or
maintained push button.
Not available on QO-GFI, QO-
EPD. QO-AFI, QO-CAFI, QO-
DF, or QO-PDF.
Shunt trip terminals accept (2)
0.14– 0.12 AWG Cu.
12 Vac/Vdc
24 Vac/Vdc
60 VA
168 VA
-1042
Auxiliary
Switches
Monitors circuit breaker contact status and
provides a remote signal indicating the circuit
breaker contacts are OPEN or CLOSED.
Application
Auxiliary switch terminals accept (2) 14–12
AWG Cu leads.
Leads (EH): Yellow for “A’’, Blue for “B’’,
Striped common 18 AWG Cu.
1A
1B
120 Vac
120 Vac
5 A
5 A
-1200
-1201
120 Vac
208 Vac
240 Vax
72 VA
228 VA
288 VA
-1021
Alarm
Switches
Used with control circuits and is actuated only
when the circuit breaker has tripped. Standard
construction includes a normally-open contact.
Application
Leads: Alarm switch terminals accept (2)
14–12 AWG Cu leads.
1A 120 Vac 5 A -2100
QO Mounting Bases
SN12125
QON120L125P1
QON3B
Table 7.17: QO OEM Mounting Bases—UL Recognized Components
Voltage System
Main Lug
Rating
Spaces
Max. No.
1P
Circuits
Mounting Bases
Cat. No.
Main Wire Size
AWG/kcmil
QO Plug-On Mounting Bases—Accepts Only QO Plug-On Circuit Breakers - Not Compatible With QO Plug-On
Neutral Circuit Breakers
1Ø2W 240 Vac Max. 10 k AIC
(Without Neutral Assembly)
 70 A 2 2
QON2L70
14–4 Cu, 12–3 Al
125 A 4 4 SK9948BW 12–1/0 Cu/Al
125 A 4 4 SK9842 12–1/0 Cu/Al
125 A 6 6 SK9795 12–1/0 Cu/Al
125 A 6 6 SK9801 12–1/0 Cu/Al
150 A 6 6 SK9796BW 8–3/0 Cu/Al
150 A 8 8 SK9797 8–3/0 Cu/Al
QO Plug-On Mounting Bases—Accepts Only QO Plug-On Circuit Breakers - Not Compatible With QO Plug-On
Neutral Circuit Breakers
1Ø3W 240 Vac Max. 10 k AIC
 40 A 2 2
QON2L40
14–6 Cu, 12–6 Al
 70 A 2 4
QON24L70
14–4 Cu, 12–3 Al
100 A 6 12
QON612L100
8–1/0 Cu/Al
100 A 8 16
QON816L100
8–1/0 Cu/Al
QO Plug-On Neutral Mounting Bases - Compatible with QO Plug-On Circuit Breakers and QO Plug-On Neutral
Circuit Breakers
1Ø3W 240 Vac Max. 10 k AIC
125 A 12 24
QON112L125PI
4–2/0 Cu/Al
125 A 20 24
QON120L125PI
4–2/0 Cu/Al
200 A 12 24
QON112L200PI
4–250 Cu/Al
200 A 24 36
QON124L200PI
4–250 Cu/Al
200 A 24 36
QON124L200PDL
(2) 4–300 Cu/Al
200 A 30 40
QON130L200PI
4–250 Cu/Al
225 A 42 52
QON142L225PI
4–300 Cu/Al
225 A 52 72
QON154L225P
4–300 Cu/Al
225 A 60 72
QON160L225P
4–300 Cu/Al
QO Plug-On Mounting Bases—Accepts Only QO Plug-On Circuit Breakers - Not Compatible With QO Plug-On
Neutral Circuit Breakers
3Ø3W 240 Vac Max. 10 k AIC
(Without Neutral Assy.)
125 A 12 12
QON312L125
4–2/0 Cu/Al
125 A 20 20
QON320L125
4–2/0 Cu/Al
125 A 24 24
QON324L125
4–2/0 Cu/Al
200 A 18 18
QON318L200
4–300 Cu/Al
200 A 24 24
QON324L200
4–300 Cu/Al
200 A 30 30
QON330L200
4–300 Cu/Al
225 A 42 42
QON342L225
4–300 Cu/Al
QO Plug-On Mounting Bases—Accepts Only QO Plug-On Circuit Breakers - Not Compatible With QO Plug-On
Neutral Circuit Breakers
3Ø4W 240 Vac Max.
10 k AIC
 60 A 3 3
QON403L60N
12–6 Cu/Al
125 A 12 12
QON312L125I
4–2/0 Cu/Al
125 A 20 20
QON320L125I [28]
4–2/0 Cu/Al
125 A 24 24
QON324L125I
4–2/0 Cu/Al
200 A 18 18
QON318L200I
4–300 Cu/Al
200 A 24 24
QON324L200I
4–300 Cu/Al
200 A 30 30
QON330L200I [28]
4–300 Cu/Al
225 A 42 42
QON342L225I
4–300 Cu/Al
QO Plug-On Mounting Bases—Accepts Only QO Plug-On Circuit Breakers - Not Compatible With QO Plug-On
Neutral Circuit Breakers
1Ø2W 240 Vac Max. 10 k AIC
(Without Neutral Assembly)
70 A
70 A
70 A
1
2
3
1
2
3
QOMB1
QOMB2
QOMB3
14–4 Cu 12–2 Al
14–4 Cu 12–2 Al
14–4 Cu 12–2 Al
QOB Bolt-On Mounting Bases—Accepts only QOB Bolt-On Circuit Breakers
3Ø3W 240 Vac Max.10 k AIC
(Without Neutral Assembly)
100 A 3 3
QON3B
12–1 Cu/Al
7
MINIATURE AND MOLDED CASE
CIRCUIT BREAKERS
[28] Also IEC rated and CE marked for IEC 60439-1. Use only Square D brand Type QOXC, QOXD, QOHX and QOE circuit breakers for 415Y/240 Vac max. systems.
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12/2/2020