Square D Digest 179

QO™ Mounting Bases

QO™ and QOU Miniature Circuit Breakers

Class 652 / Catalog 0730CT9801 , 0860CT0201

www.se.com/us

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 [27] Accessory Description Rated Voltage Coil Burden Cat. No. Suffix Accessory

Cat. No. Suffix

Max. Voltage Max.

Contact Comb.

Description

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. 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.

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.

Auxiliary Switches

12Vac/Vdc 24Vac/Vdc

60VA 168 VA -1042

120Vac 120Vac

5A 5A

-1200 -1201

1A 1B

Shunt Trip

120Vac 208Vac 240Vax

72VA 228VA 288VA

Alarm Switches

-1021

1A 120 Vac 5 A -2100

QO Mounting Bases

Table 7.17: QO OEM Mounting Bases—UL Recognized Components Voltage System MainLug 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

14–4 Cu, 12–3 Al

QON2L70 SK9948BW

70A 125A 125A

2 4 6

2 4 6

1Ø2W 240 Vac Max. 10 k AIC (Without Neutral Assembly)

12–1/0 Cu/Al

SK9795 12–1/0 Cu/Al QO Plug-On Mounting Bases—Accepts Only QO Plug-On Circuit Breakers - Not Compatible With QO Plug-On Neutral Circuit Breakers

14–6 Cu, 12–6 Al 14–4 Cu, 12–3 Al

QON2L40 QON24L70 QON612L100 QON816L100 QON112L125PI QON120L125PI QON112L200PI QON124L200PI QON130L200PI QON142L225PI QON154L225P QON160L225P QON312L125 QON320L125 QON324L125 QON318L200 QON324L200 QON330L200 QON342L225

40A 70A

2 2 6 8

2 4

SN12125

1Ø3W 240 Vac Max. 10 k AIC

100A 100A

12 16

8–1/0 Cu/Al

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

125A 125A 200A 200A 200A 200A 225A 225A 225A 125A 125A 125A 200A 200A 200A 225A 60A 125A 125A 125A 200A 225A

12 20 12 24 24 30 42 52 60 12 20 24 18 24 30 42

24 24 24 36 36 40 52 72 72 12 20 24 18 24 30 42

4–2/0 Cu/Al 4–2/0 Cu/Al 4–250 Cu/Al 4–250 Cu/Al 4–250 Cu/Al 4–300 Cu/Al 4–300 Cu/Al 4–2/0 Cu/Al 4–2/0 Cu/Al 4–2/0 Cu/Al 4–300 Cu/Al 4–300 Cu/Al 4–300 Cu/Al

QON124L200PDL (2) 4–300 Cu/Al

1Ø3W 240 Vac Max. 10 k AIC

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.)

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

QON403L60N QON312L125I

3

3

12–6Cu/Al 4–2/0 Cu/Al 4–2/0 Cu/Al 4–2/0 Cu/Al 4–300 Cu/Al

12 20 24 30 42

12 20 24 30 42

QON320L125I [28] QON324L125I QON330L200I [28]

3Ø4W 240 Vac Max. 10kAIC

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

QON120L125P1

QOMB1 QOMB2 QOMB3

70A 70A 70A

1 2 3

1 2 3

14–4 Cu 12–2 Al 14–4 Cu 12–2 Al 14–4 Cu 12–2 Al

1Ø2W 240 Vac Max. 10 k AIC (Without Neutral Assembly)

QOB Bolt-On Mounting Bases—Accepts only QOB Bolt-On Circuit Breakers 3Ø3W 240 Vac Max.10 k AIC (Without Neutral Assembly) 100A 3 3

QON3B

12–1Cu/Al

Table 7.18: Solid Neutral Assemblies MainLug Rating Number of Branch Neutral Terminals Cat.No.

Main Neutral Lug Wire Size Cu/Al

Branch Neutral Terminal Wire Size Cu Al

QON3B

125A 125A 200A 200A 225A

12 20 12 30 42

SN12125 SN20 SN12200

4–2/0AWG 4–2/0AWG

14–4AWG 14–4AWG 14–4AWG 14–4AWG 14–4AWG

12–4AWG 12–4AWG 12–4AWG 12–4AWG 12–4AWG

4 AWG–300 kcmil 4 AWG–300 kcmil 4 AWG–300 kcmil

SN30 SN42

CIRCUIT BREAKERS

7 MINIATURE AND MOLDED CASE

[27] QOB circuit breakers with shunt trip, auxiliary switches, and/or alarm switches, which are no longer active commercial references, may be available Factory Assembled into NQ Panelboards. [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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