QO 2-Pole Plug-In Circuit Breaker General Type QO 2-Pole Plug-In Circuit Breaker General Type
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QO 2-Pole Plug-In Circuit Breaker General Type QO 2-Pole Plug-In Circuit Breaker General Type
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QO 2-Pole Plug-In Circuit Breaker General Type
QO 2-Pole Plug-In Circuit Breaker General Type
QO 2-Pole Plug-In Circuit Breaker General Type
QO 2-Pole Plug-In Circuit Breaker General Type
QO 2-Pole Plug-In Circuit Breaker General Type
QO 2-Pole Plug-In Circuit Breaker General Type
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QO 2-Pole Plug-In Circuit Breaker General Type
QO 2-Pole Plug-In Circuit Breaker General Type
QO 2-Pole Plug-In Circuit Breaker General Type
QO 2-Pole Plug-In Circuit Breaker General Type
QO 2-Pole Plug-In Circuit Breaker General Type
QO 2-Pole Plug-In Circuit Breaker General Type
Home Circuit Breaker & Fuses Plug in Circuit Breaker QO 2-Pole Plug-In Circuit Breaker General Type
Type CH 1-Pole Plug-On Circuit Breaker
Type CH 1-Pole Plug-On Circuit Breaker
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QO 1-Pole Plug-In Circuit Breaker General Type
QO 1-Pole Plug-In Circuit Breaker General Type

QO 2-Pole Plug-In Circuit Breaker General Type

Rated Frequency:50/60hz
Mounting type:plug-in mount
Type:Mini
BCD Curve:C
Brand Name:NewTrend or OEM
Application:Household
Material:Plastic
Place of Origin:China
Model Number:QO
Poles Number:2
Breaking Capacity:10kA
Poles
Rated Current
Rated Voltage
SKU: 1600521709809 Category: Plug in Circuit Breaker
  • Description
  • Additional information
  • Technical Datasheet & Downloads
  • Technical FAQ & Selection Guide
Description

Square D type QO 2 Pole 20A 30A 40A 50A 60A 70A 100A 125A QO220 QO230 QO240 QO250 QO260 QO270 QO2100 QO2125 2P Circuit Breaker

 

Product Description: 

All QO circuit breakers are equipped with the indicator. When a circuit breaker trips, the handle snaps to a midpoint position between “OFF” and “ON” and a highly visible, red indicator easily identifies the tripped breaker. This enables you to easily distinguish which breaker has tripped in a load center that may contain up to 60 different circuit breakers. QO circuit breakers have features no other manufacturer can offer. They come in many different sizes and can meet the needs of virtually every function in your home or business. These types of quality, industry exclusive products keep ahead of the competition and are builders’ and electrical contractors’ first choice in electrical protection.

 

QO Plug on Circuit Breakers
Ampere
Rating
Catalog Number
1 Pole
120/240 Vac
2 Pole
120/240 Vac
3 Pole
240 Vac
10A QO110 QO210 QO310
15A QO115 QO215 QO315
20A QO120 QO220 QO320
25A QO125 QO225 QO325
30A QO130 QO230 QO330
35A QO135 QO235 QO335
40A QO140 QO240 QO340
45A QO145 QO245 QO345
50A QO150 QO250 QO350
60A QO160 QO260 QO360
70A QO170 QO270 QO370
80A   QO280 QO380
90A   QO290 QO390
100A   QO2100 QO3100
110A   QO2110  
125A   QO2125  

 

QO Plug on Circuit Breakers Catalog Number Description
QO 1 15 C
Model # of poles Amps C: clam shell packaging, CP: bulk bar coded packaging

 

 

 

Additional information
Weight 2 kg
Dimensions 25 × 25 × 25 cm
Rated Current

60A, 25A, 20A, 15A, 35A, 100A, 50A, 80A, 10A, 30A, 90A, 70A, 40A

Rated Voltage

120/240VAC

Poles

2P

Technical Datasheet & Downloads

📄 Technical Documentation & Product Specifications

Download official engineering datasheets, certified test standards (IEC / UL / CE), wiring diagrams, and dimensional drawings for QO 2-Pole Plug-In Circuit Breaker General Type.

📥
Official Technical Datasheet (PDF) Complete electrical ratings, tripping characteristics, dimensions, and compliance specifications.
Request Official Datasheet (PDF)
📐
2D/3D CAD & Dimensional Drawings STEP, DXF, and PDF CAD drawing files for panel builders and switchgear designers.
Request CAD Model
Certified Standards: IEC 60898-1, IEC 60947-2, CE, RoHS, ISO 9001:2015
Manufacturer: Shanghai Newtrend Electric Co., Ltd. (Global Export Compliance)
Engineering Support: 24-hour response for custom voltage ratings, auxiliary contacts, and technical consulting.
Technical FAQ & Selection Guide

💡 Frequently Asked Technical Questions & Selection Guide

Pure engineering specifications, tripping curve parameters, and electrical selection guidance for panel builders and system designers.

Curve Selection

How to choose between Tripping Curves B, C, and D for this miniature circuit breaker?

A

Curve B trips at 3–5 In (designed for resistive loads, electric heating, and domestic appliances with negligible inrush). Curve C trips at 5–10 In (the standard international choice for residential and commercial lighting, socket outlets, and small induction motors). Curve D trips at 10–14 In (specifically engineered for high-inrush inductive equipment such as industrial transformers, heavy motors, compressors, and welding circuits).

Breaking Capacity

How do I determine whether 6kA or 10kA breaking capacity is required for my installation?

A

Breaking capacity (Icn/Icu) must exceed the calculated prospective short-circuit fault current at the installation point. 6kA (IEC 60898-1) is standard for residential consumer units and sub-distribution branch circuits located downstream. 10kA (IEC 60947-2) is required for industrial facilities, main switchboards, commercial distribution panels, or circuits situated close to supply transformers where fault levels are high.

Poles & Neutral Isolation

How to choose the correct number of poles (1P, 1P+N, 2P, 3P, 3P+N, 4P) for single-phase and three-phase circuits?

A

For single-phase 230V circuits: 1P provides active phase protection; 1P+N or 2P isolates both live and neutral lines simultaneously (essential for TT earthing systems and sensitive sub-panels). For three-phase 400V systems: 3P protects balanced 3-wire motor loads; 3P+N or 4P is required for 4-wire mixed single-phase loads to ensure complete neutral disconnection during isolation.

DC vs AC Application

Can this circuit breaker be used in DC circuits (Solar PV, Battery Storage, Telecom)?

A

Standard AC breakers cannot safely extinguish DC arcs due to the absence of natural zero-crossing current. For DC circuits (60V to 1000V DC), select specialized DC breakers (such as DZ158-125 DC or NM8NDC series) equipped with permanent magnetic arc-blowout chutes and strictly observe polarity wiring to prevent arc re-ignition.

Modular Accessories & Interlocks

What modular accessories and mechanical interlocks can be fitted to this breaker?

A

Standard modular clip-on accessories can be mounted directly on the side without tools: OF (Auxiliary Contact for remote status indication), SD (Alarm Contact for trip fault signaling), MX (Shunt Trip for remote emergency tripping), MN (Under-voltage Release for voltage loss protection), and NXBZ mechanical interlock kits for manual generator/mains transfer switches.

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