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Solid quality component. Exactly as described on the product page.
Maintenance team · Ontario
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Circuit Breaker
Siemens | HQJ3B125HA01 | Circuit Breaker | 125A | 3-Pole | 240V | Bolt-On
| Amperes | 125 |
| 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 | HQJ3B125HA01 | Circuit Breaker | 125A | 3-Pole | 240V | Bolt-On
Regular price
$510.00
Sale price
$510.00
Regular price
Unit price
Product description
Shipping
Siemens HQJ3B125HA01 is a 125A, 3-Pole, 240V bolt-on circuit breaker designed to deliver dependable three‑phase protection in commercial and industrial electrical systems. Built for maintenance, retrofit, or replacement projects where exact specifications matter, this unit integrates seamlessly with compatible Siemens panels that rely on bolt-on protective devices.
- Amperage: 125A — provides robust overload protection for demanding circuits.
- Poles: 3-Pole — protects all three phases in a quad-friendly, balanced configuration.
- Voltage: 240V — suitable for standard three‑phase power distribution in many facilities.
- Mounting: Bolt-On — facilitates secure, rapid installation in compatible panels.
- Reference: Part number HQJ3B125HA01 serves as the best compatibility reference; always confirm fit and ratings before ordering.
Why this breaker is the right choice for your panel
When your system relies on dependable overcurrent protection with precise trip characteristics, this Siemens breaker ensures consistent performance across all three phases. The bolt-on design provides solid mechanical contact and reduces installation time, which is especially valuable during scheduled maintenance windows or retrofit projects where downtime matters.
Ideal use cases
- Replacing failed or outdated 3-Pole, 125A breakers in Siemens bolt-on panels.
- Upgrading or retrofitting existing 240V, three‑phase circuits to restore full protective coordination.
- New installations in facilities that align with Siemens panel ecosystems and require a rugged, bolt-on protective device.
Installation and compatibility tips
Before ordering, verify that your panel accepts bolt-on breakers from the HQJ family and that the 125A, 3‑pole, 240V ratings match your load calculations. Use HQJ3B125HA01 as the primary compatibility reference to avoid mismatches. Always consult your panel’s documentation for approved breaker types, bus bar configuration, and installation guidelines to ensure a safe, compliant setup.
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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
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We’ve used this type on multiple jobs and it’s been reliable so far.
Panel shop · Canada/US
