QO™ Plug-On and Bolt-On Circuit Breakers and Switches

General Description

In 1955 Square D Company introduced the QO™ Plug-on System and revolutionized the way electrical contractors install miniature circuit breakers in the United States. Today as part of Schneider Electric™ we offer the same Plug-on System technology around the world. IEC certified QO products are available for residential, commercial and industrial applications.

International Miniature Circuit Breaker Description

Circuit Breaker

Description

1Ø Consumer Units

3Ø Distribution Boards

QOXD

Branch circuit breaker

X

X

Characteristics

  • Circuit breakers are rated 240 Vac single phase and 415 Vac three phase, 50/60 Hz.

  • Circuit breakers are available in 1-, 2- or 3-pole construction.

  • Thermal trip elements are factory calibrated to 40°C (IEC 947-2) and 30°C (IEC 898) ambient temperature.

  • Trip-free handle ensures tripping even when the circuit breaker is held or locked in the ON position.

  • Circuit breakers are in compliance with international standards set by the International Electrotechnical Commission (IEC).

  • The CE marking is located on each circuit breaker in accordance with the low voltage directive of the European Union.

  • The entire QO circuit breaker family provides the advantage of a plug-on connection. (Bolt-on connections also available)

Accessories

Accessories

Accessory

Description

Cat. No.

QOXD

Handle Tie

Ties two 1P circuit breakers together

QO1HT

X

Handle Lock-Off (Clamp)

Attaches to 1P circuit breaker handles

QO1LO

X

Attaches to 1P, 2P, 3P circuit breaker handles

HLO1

X

Handle Padlock Attachment

Attaches to 1P, 2P, 3P circuit breaker handles

QOEPLA

Attaches to 1P circuit breaker handles

QOE1PL

Attaches to 1P circuit breaker escutcheon (fixed)

QO1PA

X

Attaches to 1P circuit breaker handles (removable)

QOHPL

X

Attaches to 2P, 3P circuit breaker handles (removable)

QO1HPL

X

Attaches to 2P circuit breaker handles (removable)

GFI2PA

Circuit Breaker Operating Characteristics

Branch Circuit Breakers

Cat. No. Prefix

Number of Poles

Continuous
Ampere Rating

IEC 898 Service Rating Icn

Tripping Characteristics

Plug-on

Bolt-on

240 V

415 V

QOXD

QOBXD

1, 2, 3

10–32 A

 3000

3000

Type D (10–20 In)

Cat. No. Prefix

Number of Poles

Continuous
Ampere Rating

IEC 947-2 Service Rating Icu (Ics)

Plug-on

Bolt-on

240 V

415 V

QOXD

QOBXD

1, 2, 3

10–32 A

3000 (100%)

3000 (100%)

1

40–63 A

3000 (50%)

2, 3

40–100 A

3000 (50%)

Main Switches

QO-M Plug-On Main Incomer Switch
240 V Certified to IEC 947-3

Ampere Rating

1P
Cat. No.

2P
Cat. No.

3P and 4P
Cat. No.

100 A

N/A

N/A

N/A

125 A

N/A

N/A

QO3100M

125 A–4P

N/A

N/A

QO4100M

Plug-On QOXD and Bolt-On QOBXD

QOXD Thermal-Magnetic, Plug-On Miniature Circuit Breakers
240/415 V 10–32 A Certified to IEC 898 at 3 kA,
40–100 A Certified to IEC 947-2 at 3 kA

Ampere Rating

1P

2P

3P

Terminal Capacity

Range

Cat. No.

Cat. No.

Cat. No.

 10 A

QOXD110

QOXD210

QOXD310

2.5–6 mm2

 16 A

QOXD116

QOXD216

QOXD316

2.5–6 mm2

 20 A

QOXD120

QOXD220

QOXD320

2.5–6 mm2

 25 A

QOXD125

QOXD225

QOXD325

2.5–6 mm2

 32 A

QOXD132

QOXD232

QOXD332

2.5–6 mm2

 40 A

QOXD140

QOXD240

QOXD340

10–25 mm2

 45 A

QOXD145

QOXD245

QOXD345

10–25 mm2

 50 A

QOXD150

QOXD250

QOXD350

10–25 mm2

 63 A

QOXD163

QOXD263

QOXD363

10–25 mm2

 80 A

N/A

QOXD280

QOXD380

25–50 mm2

100 A

N/A

QOXD2100

QOXD3100

25–50 mm2

QOBXD Thermal-Magnetic, Bolt-On Miniature Circuit Breakers
240/415 V 10–32 A Certified to IEC 898 at 3 kA,
40–100 A Certified to IEC 947-2 at 3 kA

Ampere Rating

1P

2P

3P

Terminal Capacity

Range

Cat. No.

Cat. No.

Cat. No.

 10 A

QOBXD110

QOBXD210

QOBXD310

2.5–6 mm2

 16 A

QOBXD116

QOBXD216

QOBXD316

2.5–6 mm2

 20 A

QOBXD120

QOBXD220

QOBXD320

2.5–6 mm2

 25 A

QOBXD125

QOBXD225

QOBXD325

2.5–6 mm2

 32 A

QOBXD132

QOBXD232

QOBXD332

2.5–6 mm2

 40 A

QOBXD140

QOBXD240

QOBXD340

10–25 mm2

 45 A

QOBXD145

QOBXD245

QOBXD345

1–25 mm2

 50 A

QOBXD150

QOBXD250

QOBXD350

10–25 mm2

 63 A

QOBXD163

QOBXD263

QOBXD363

10–25 mm2

 80 A

N/A

QOBXD280

QOBXD380

25–50 mm2

100 A

N/A

QOBXD2100

QOBXD3100

25–50 mm2

For Accessories, see Accessories

For short circuit ratings, see Branch Circuit Breakers

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