steve
Got hold of Sime for a Carrier card for…
Got hold of Sime for a Carrier card for a chiller. Machine down in a factory. Received the new card in express time machine and plant now up and running fantastic service form Sime
2 months ago
QO3401021
Square D QO3401021 available at EU Automation. Get in touch today for a quick price.
Based on over 4900 reviews
Full 12-month warranty
Available for dispatch immediately
We deliver worldwide
What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
All orders are subject to product availability. See our T&Cs.
Ask our team
What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
The Square D QO3401021 is a high-performance miniature circuit breaker designed for reliable protection in electrical systems. This 3-pole breaker is rated for 40 amps and operates at 120/240 VAC, making it suitable for a variety of residential, commercial, and industrial applications. With a 10 kA interrupt rating, it ensures robust protection against overcurrent and short-circuit conditions.
The QO3401021 features a plug-in mount for easy installation and maintenance, and it is equipped with box lugs for secure electrical connections. It supports wire sizes ranging from AWG 8 to AWG 2, accommodating both copper and aluminium conductors. The breaker also includes a shunt trip option for remote tripping capabilities at 120/208/240 V AC.
Measuring 3 inches in height, 2.91 inches in depth, and 3 inches in width, this compact circuit breaker is designed to fit seamlessly into standard electrical panels, occupying four panel spaces. It is UL Listed and CSA certified, ensuring compliance with stringent safety and performance standards.
The Square D QO3401021 is a Green Premium product, meeting REACh and RoHS directives for environmental sustainability. It is free of toxic heavy metals and mercury, aligning with modern environmental and safety regulations. This circuit breaker is an excellent choice for those seeking a reliable and environmentally responsible solution for their electrical protection needs.
The QO3401021 features a plug-in mount for easy installation and maintenance, and it is equipped with box lugs for secure electrical connections. It supports wire sizes ranging from AWG 8 to AWG 2, accommodating both copper and aluminium conductors. The breaker also includes a shunt trip option for remote tripping capabilities at 120/208/240 V AC.
Measuring 3 inches in height, 2.91 inches in depth, and 3 inches in width, this compact circuit breaker is designed to fit seamlessly into standard electrical panels, occupying four panel spaces. It is UL Listed and CSA certified, ensuring compliance with stringent safety and performance standards.
The Square D QO3401021 is a Green Premium product, meeting REACh and RoHS directives for environmental sustainability. It is free of toxic heavy metals and mercury, aligning with modern environmental and safety regulations. This circuit breaker is an excellent choice for those seeking a reliable and environmentally responsible solution for their electrical protection needs.
| Specification | Description |
|---|---|
| Part Number | QO3401021 |
| Manufacturer | Square D |
| Product Type | Miniature Circuit Breaker |
| Range | QO |
| Current Rating | 40 A |
| Voltage Rating | 120/240 V AC, 240 V AC, 120 V AC, 48 V DC |
| Mounting Type | Plug-in |
| Number of Poles | 3 |
| Circuit Breaker Type | Standard |
| Ratings | HACR rated |
| Electrical Connection | Box lugs |
| Options | Shunt trip 120/208/240 V AC |
| Interrupt Rating | 10 kA at 120/240 V AC 50/60 Hz, 10 kA at 240 V AC 50/60 Hz, 10 kA at 120 V AC 50/60 Hz, 5 kA at 48 V DC |
| Number of Panel Spaces | 4 |
| Wire Size | AWG 8 to AWG 2 copper or aluminium |
| Tightening Torque | 44.25 lbf.in (5 N.m) for 0.02 to 0.04 in² (10 to 25 mm²) AWG 8 to AWG 2 |
| Height | 3 in (76.20 mm) |
| Depth | 2.91 in (73.91 mm) |
| Width | 3 in (76.20 mm) |
| Certifications | UL Listed, CSA |
| Ambient Rating | 104 °F (40 °C) |
| Sustainable Offer Status | Green Premium product |
| REACh Regulation | REACh Declaration, REACh free of SVHC |
| EU RoHS Directive | Compliant, EU RoHS Declaration |
| Toxic Heavy Metal Free | Yes |
| Mercury Free | Yes |
| Halogen Content | Halogen free product |
| Country of Origin | Mexico |
What is the current rating of this circuit breaker?
The Square D QO3401021 circuit breaker has a current rating of 40 amps.
What type of mounting does this circuit breaker use?
This circuit breaker uses a plug-in mounting type.
How many poles does this circuit breaker have?
The Square D QO3401021 circuit breaker has 3 poles.
What is the voltage rating for this circuit breaker?
The voltage rating for this circuit breaker is 120/240 V AC and 48 V DC.
What is the interrupt rating of this circuit breaker?
The interrupt rating is 10 kA at 120/240 V AC and 5 kA at 48 V DC.
What type of electrical connection does this circuit breaker use?
This circuit breaker uses box lugs for electrical connection.
What is the ambient temperature rating for this circuit breaker?
The ambient temperature rating is 104°F (40°C).
What certifications does this circuit breaker have?
This circuit breaker is UL Listed and CSA certified.
What is the tightening torque for the wire connections?
The tightening torque for the wire connections is 44.25 lbf.in (5 N.m).
What is the size range for the wire connections?
The wire size range for the connections is AWG 8 to AWG 2, copper or aluminium.
- Electrical distribution in residential, commercial, and industrial buildings
- Protection of electrical circuits from overloads and short circuits
- Integration into control panels and switchboards
- Use in HVAC systems for circuit protection
- Application in renewable energy systems, such as solar panel installations
- Protection of lighting circuits in large facilities
- Use in motor control centers for safeguarding motors and other equipment
- Implementation in data centers for reliable power distribution
- Protection of branch circuits in various electrical installations
- Use in backup power systems, including generators and UPS systems
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
Delivery
- Logistic partners UPS, FedEx and DHL
- International delivery available
- Premium nine hour delivery service available to anywhere in Europe
- Same day dispatch from group stock
Warranty
All parts new or reconditioned are covered by EU Automation 12 month warranty
Returns
No hassle returns policy
Dedicated customer support team
Payment
Trade CreditWe understand that credit is a necessary part of business and offer credit agreements on request, subject to status.
Payment optionsWe accept Bank transfers and the following methods of payment:
All transactions are handled securely by HSBC and HSBC Merchant Services. For more information, please visit our dedicated payments page.
Services
Sourcing your part
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Dispose of your old unit by exchanging it for a working part.
Repair
A comprehensive repair service for faulty equipment.
Customer reviews
steve
Daniel
Excellent customer service...
Alex Bailey is my main point of contact at EU Automation...he is extremely friendly, has exceptional customer service skills and always offers great pricing & lead times.
3 months ago
Jerry Schrink
Tom Higgins provided amazing service
Tom Higgins provided great prompt service. I contacted Tom by phone and within 10 minutes there was a quote in my in box. WOW Thank you Tom and Thank you EU Automation!
4 months ago
Paulo Pereira
Excellent service and communication…
Excellent service and communication from Alex Bailey. He truly goes above and beyond to ensure his clients are 100% satisfied. The entire process was seamless, and his attention to detail made a huge difference. Highly recommended for anyone looking for amazing service!
4 months ago
Gary
Tom Higgins did a great job at getting…
Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
4 months ago
Lessle Smith
Thomas Higgins has gone above and…
Thomas Higgins has gone above and beyond to make things happen for my facility. His customer service and knowledge were an asset in helping me with my order and the logistics challenges!
5 months ago
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