Verified
Solid quality component. Exactly as described on the product page.
Maintenance team · Ontario
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Circuit Breaker
Siemens | QJ3B090A02 | Circuit Breaker | 3-Pole | 240V
★★★★★
| Poles | 3 |
| Voltage | 240 |
| Product Type | Circuit Breaker |
Regular price
$510.00
Sale price
$510.00
Regular price
Unit price
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Seamless online shopping experience guaranteed with easy shipping and returns policy.
Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.
Siemens | QJ3B090A02 | Circuit Breaker | 3-Pole | 240V
Regular price
$510.00
Sale price
$510.00
Regular price
Unit price
Product description
Shipping
Meet the Siemens QJ3B090A02 3-Pole 240V Circuit Breaker — a purpose-built protection device designed for maintenance, retrofit, and replacement projects where precise specs matter. This unit is crafted to slot into compatible Siemens panels, delivering a reliable, drop-in solution without unnecessary adaptations.
Key advantages at a glance
- Three-pole protection tailored for 3-phase systems, ensuring balanced protection across all conductors in commercial or industrial setups.
- 250V-appropriate platform optimized for 240V operation common in many three-phase installations, helping protect equipment and wiring from overload or fault conditions.
- Authentic Siemens fit designed to align with Siemens mounting, terminals, and electrical interface, reducing installation adjustments and compatibility concerns.
- Clear compatibility reference the part number QJ3B090A02 is the best reference for confirming exact fit and ratings before ordering.
Ideal use cases
- Replacing a failed breaker in existing Siemens panels that require a 3-pole, 240V configuration.
- Retrofits and upgrades in small to mid-size commercial electrical rooms that rely on reliable three-phase protection.
- Spare-part provisioning for maintenance teams to minimize downtime during service windows.
Why this unit stands out
- Designed to maintain panel warranty and performance by ensuring seamless electrical and mechanical compatibility within the Siemens ecosystem.
- Provides consistent operability with other breakers in the same family, helping keep protection schemes straightforward and predictable.
Practical ordering and installation tips
- Always verify fit by cross-referencing your panel model and the QJ3B090A02 part number against official Siemens documentation before purchasing.
- Power down the system and follow proper lockout/tagout procedures prior to removing or installing the breaker.
- Handle with care to protect terminals and the trip mechanism; store in a clean, dry environment if not installed immediately.
Technical snapshot
- Poles: 3-Pole
- Voltage: 240V
- Part number: QJ3B090A02
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What Our Customers Say
General feedback we often hear from customers purchasing industrial electrical parts.
Verified
Packaging was secure and the item arrived clean and ready for installation.
Electrical contractor · GTA
Verified
We’ve used this type on multiple jobs and it’s been reliable so far.
Panel shop · Canada/US
