Verified
Solid quality component. Exactly as described on the product page.
Maintenance team · Ontario
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Circuit Breaker
Siemens | JJ62B300 | Circuit Breaker | 300A | 2-Pole | 600V | Bolt-On
| Amperes | 300 |
| Poles | 2 |
| Voltage | 600 |
| 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 | JJ62B300 | Circuit Breaker | 300A | 2-Pole | 600V | Bolt-On
Regular price
$510.00
Sale price
$510.00
Regular price
Unit price
Product description
Shipping
Introducing the Siemens JJ62B300 circuit breaker — a robust, bolt-on, two-pole protection device designed for demanding industrial electrical systems. With a 300-amp rating and a 600-volt maximum, this unit provides reliable overcurrent protection for maintenance, retrofit, or replacement projects where exact specifications matter and OEM compatibility is critical.
Key specifications
- Amperage: 300 A
- Poles: 2-Pole
- Voltage: 600 V
- Mounting: Bolt-On
- Part number: JJ62B300
Why this Siemens circuit breaker stands out
As a genuine Siemens component, the JJ62B300 is engineered to align perfectly with compatible panels and protection schemes. The bolt-on design ensures a secure, vibration-resistant mounting that preserves consistent electrical contact, reducing the risk of loose connections in demanding environments. The two-pole configuration protects two conductors simultaneously, simplifying wiring in compact panel layouts without compromising protection. This unit is specifically suited for projects that require a reliable 300A, 600V solution with true OEM fit.
Ideal use cases
- Maintenance and service on Siemens-based panels requiring 300A, 2-pole protection
- Retrofit upgrades to align with updated electrical protection standards
- Replacement for worn or failed breakers in compatible systems
- Emergency shutdown protection in industrial facilities with Siemens protection architecture
Fit, compatibility, and installation notes
Important: Confirm fit and ratings before ordering. The part number JJ62B300 is the best reference for compatibility with your equipment. This is a bolt-on unit designed to mount to compatible Siemens panels or enclosures that accept bolt-on breakers.
Practical installation tips
- Always disconnect power and follow proper lockout/tagout procedures before servicing.
- Consult your panel's installation instructions for bolt-on mounting torque and sequence to ensure a secure, compliant installation.
- Inspect the bus bar connection and mounting hardware for signs of wear or damage prior to installation.
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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
