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Matched our existing hardware and fit as expected. Clean install.
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Circuit Breaker
Siemens | CK3B090 | Circuit Breaker | 90A | 3-Pole | 600V | Bolt-On
| Amperes | 90 |
| Poles | 3 |
| 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 | CK3B090 | Circuit Breaker | 90A | 3-Pole | 600V | Bolt-On
Regular price
$510.00
Sale price
$510.00
Regular price
Unit price
Product description
Shipping
Siemens CK3B090 — 90A, 3-Pole, 600V Bolt-On Circuit Breaker
The CK3B090 from Siemens is a purpose-built three-pole circuit breaker designed to protect 3‑phase electrical systems in demanding environments. With a 90-amp rating and a 600-volt operating capability, it delivers dependable overcurrent protection for feeders and branch circuits in commercial, industrial, and retrofit projects.
- Amperage: 90 A
- Poles: 3-Pole
- Voltage: 600 V
- Mounting: Bolt-On
Designed for maintenance, retrofit, and replacement scenarios, the CK3B090 excels where exact compatibility matters. Confirm fit and ratings before ordering—the part number CK3B090 is the most reliable reference to ensure seamless integration with your Siemens panels or switchgear.
Why choose this Siemens circuit breaker? It’s built to slot into Siemens ecosystems with straightforward bolt-on installation, minimizing downtime during service. The 3‑pole configuration ensures balanced protection across all three phases, reducing the risk of uneven load distribution and improving overall system reliability in multi‑phase applications.
Practical use cases you’ll appreciate:
- Upgrading or replacing aging breakers in existing Siemens panelboards or switchgear where a 3‑pole, 90A, 600V device is specified.
- Retrofit projects that require exact CK3B090 compatibility to maintain electrical protection schemes without extensive panel modifications.
- Residential or light commercial installations that utilize three-phase distribution networks demanding reliable overcurrent protection.
Tips for a smooth install and long-term performance:
- Always verify panel compatibility and ratings against the CK3B090 before purchasing, using the exact part number as your reference.
- Prepare for bolt-on mounting by ensuring the mounting hardware and panel bus connections match the breaker’s specifications.
- Follow standard electrical safety practices during installation and maintenance to protect personnel and equipment.
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