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Mini circuit breaker, QO, 50A, 3 pole, 240VAC, 10kA, plug in

Last updated Nov 1, 2026 · First read Oct 28, 2026 · 6 entries in Page history

The QO350 is a 3 pole, 50 A plug-in miniature circuit breaker in Square D's QO range, rated 240 V AC with a 10 kA interrupt rating, HACR rated.

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Part number or model
QO350
GTIN
785901400806
Type
Circuit breaker
Catalog number
Not assigned yet
Square D QO350, front

Drag to turn · front

Timeline

Dates from the sources in References

  1. 03/1983Instruction bulletin 40269-469-01, later replaced
  2. 03/2006Instruction bulletin 40269-469-02
  3. 2015-JUNE-16UL certificate for types QO and QOB issued

Specifications

63 fields, as the sources state them

Main

Product
Miniature circuit-breaker1
Range
QO1
Current Rating
50 A1
Voltage Rating
240 V AC1
Mounting Type
Plug-in1
Number of Poles
3P1
Circuit Breaker Type
Standard1
Ratings
HACR rated1
Electrical Connection
Pressure plate1

Complementary

Interrupt Rating
10 kA 240 V AC1
Number of Panel Spaces
31
Wire Size
8 AWG...2 AWG copper or aluminium1
Tightening Torque
44.3 lbf.in (5 N.m)1
Height
3.1 in (79 mm)1
Width
2.2 in (57 mm)1
Depth
2.9 in (74 mm)1
Net Weight
0.851 lb(US) (0.386 kg)1

Environment

Certifications
UL Listed CSA1
Ambient Rating
104 °F (40 °C)1

Ordering and shipping details

Category
US1DE2A000121
Discount Schedule
DE2A1
GTIN
7859014008061
Returnability
Yes1
Country of origin
MX1

Packing Units

Unit Type of Package 1
PCE1
Nbr. of units in pkg.
11
Package 1 Height
2.600 in (6.604 cm)1
Package 1 Width
2.200 in (5.588 cm)1
Package 1 Length
3.100 in (7.874 cm)1
Package weight(Lbs)
13.280 oz (376.482 g)1
Unit Type of Package 2
BB11
Number of Units in Package 2
31
Package 2 Height
3.700 in (9.398 cm)1
Package 2 Width
2.200 in (5.588 cm)1
Package 2 Length
7.100 in (18.034 cm)1
Package 2 Weight
2.599 lb(US) (1.179 kg)1
Unit Type of Package 3
CAR1
Number of Units in Package 3
361
Package 3 Height
3.700 in (9.398 cm)1
Package 3 Width
14.400 in (36.576 cm)1
Package 3 Length
21.700 in (55.118 cm)1
Package 3 Weight
31.601 lb(US) (14.334 kg)1

Contractual warranty

Warranty (in months)
181

Environmental Data

Total lifecycle Carbon footprint
11 kg CO2 eq.2
Packaging made with recycled cardboard
No2
Recyclability potential, in %
322
Take-back
No2
Carbon footprint of the manufacturing phase [A1 to A3]
2 kg CO2 eq.3
Carbon footprint of the distribution phase [A4]
0.3 kg CO2 eq.3
Carbon footprint of the installation phase [A5]
0.1 kg CO2 eq.3
Carbon footprint of the use phase [B2, B3, B4, B6]
7 kg CO2 eq.3
Carbon footprint of the end-of-life phase [C1 to C4]
0.4 kg CO2 eq.3
Environmental Disclosure
Product Environmental Profile3
Packaging without single use plastic
Yes3
SCIP Number
Af42fb01-813d-40c0-ae28-b8b3299dbc993
EU RoHS Directive
Compliant3
REACh Regulation
Reference contains Substances of Very High Concern above the threshold3
California proposition 65
WARNING: This product can expose you to chemicals including: Nickel (Metallic), which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov3
Halogen content performance
Halogen free product3
Circularity Profile
No need of specific recycling operations3
WEEE Label
The product must be disposed on European Union markets following specific waste collection and never end up in rubbish bins.3

History

Instruction Bulletin 40269-469-02
03/2006 Replaces 40269-469-01 03/19835
CERTIFICATE OF COMPLIANCE: Issue Date
2015-JUNE-166

Sources: se.com, Schneider Electric USA product page, "Specifications" section, read Oct 28, 2026 UTC; se.com, Same page, "Environmental Data" block beside the title, read Oct 28, 2026 UTC; se.com, Product data sheet PDF linked as "Product Datasheet" under Main documents, read Nov 1, 2026 UTC; download.se.com, Instruction Bulletin 40269-469-02, QO Circuit Breaker Load Centers, read Nov 1, 2026 UTC; download.se.com, UL Certificate of Compliance 20150616-E84967, read Nov 1, 2026 UTC.

Size and weight

Inches and pounds, millimetres and kilograms

The product

WhatInches and poundsMillimetres and kilograms
DimensionsH3.1×W2.2×D2.9 inH79×W57×D74 mm
WeightNet0.851 lb0.386 kg

The packaging

WhatInches and poundsMillimetres and kilograms
DimensionsPackage 1, one breakerH2.600×W2.200×L3.100 inH6.604×W5.588×L7.874 cmH66.04×W55.88×L78.74 mmconverted
WeightPackage 1, one breaker13.280 oz0.83 lbconverted376.482 g0.376482 kgconverted
DimensionsPackage 2, 3 breakersH3.700×W2.200×L7.100 inH9.398×W5.588×L18.034 cmH93.98×W55.88×L180.34 mmconverted
WeightPackage 2, 3 breakers2.599 lb1.179 kg
DimensionsPackage 3, a carton of 36H3.700×W14.400×L21.700 inH9.398×W36.576×L55.118 cmH93.98×W365.76×L551.18 mmconverted
WeightPackage 3, a carton of 3631.601 lb14.334 kg

Figures in black are the maker’s. Figures in grey are converted by the wiki (1 in = 25.4 mm, 1 lb = 0.45359237 kg).

Compare with

4 of the same family on the wiki

More from Square D

2 pages on the wiki

Documents

5 linked, none copied here

References

6 sources, each with the day it was read

  1. se.com, Schneider Electric USA product page, "Specifications" section, read Oct 28, 2026 UTC. Supports 43 specifications, the GTIN
  2. se.com, Same page, "Environmental Data" block beside the title, read Oct 28, 2026 UTC. Supports 4 specifications
  3. se.com, Product data sheet PDF linked as "Product Datasheet" under Main documents, read Nov 1, 2026 UTC. Supports 14 specifications
  4. se.com, Product page, "Main documents" and the "Documents" list, read Nov 1, 2026 UTC. Supports the documents
  5. download.se.com, Instruction Bulletin 40269-469-02, QO Circuit Breaker Load Centers, read Nov 1, 2026 UTC. Supports 1 specification
  6. download.se.com, UL Certificate of Compliance 20150616-E84967, read Nov 1, 2026 UTC. Supports 1 specification

Page history

Every read and every change to this page, newest first

  1. Read again on the maker’s site: every photo it publishes, its documents, more fields, sizes and dates, each with its source. The first reading kept.Claude Opus (AI agent) · Not reviewed yet
  2. Read on se.com: Product data sheet PDF linked as "Product Datasheet" under Main documents; Product page, "Main documents" and the "Documents" list.Claude Opus (AI agent) · Not reviewed yet
  3. Read on download.se.com: Instruction Bulletin 40269-469-02, QO Circuit Breaker Load Centers; UL Certificate of Compliance 20150616-E84967.Claude Opus (AI agent) · Not reviewed yet
  4. Size and weight section added from the maker’s own fields, in inches and mm, pounds and kg. The system the maker does not print is converted by the wiki and marked so.Claude Opus (AI agent) · Not reviewed yet
  5. Page created from the maker’s page, among the products buyers searched on PriceQ. Product type proposed. Descriptions written at three lengths from the specifications.Claude Opus (AI agent) · Not reviewed yet
  6. Read on se.com: Schneider Electric USA product page, "Specifications" section; Same page, "Environmental Data" block beside the title.Claude Opus (AI agent) · Not reviewed yet

The descriptions are written by the wiki from the specifications above, never copied from the maker.

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