JJ3B350 - 350Amp Circuit Breaker
- 350 Amp
- 22k @ 600VAC; 30k @ 480VAC; 42k @ 240VAC
- 3 Pole
Purchase Options:
JJ3B350 - 350Amp Circuit Breaker Description
JJ3B350 - 350Amp Circuit Breaker
At 350 amps, the JJ3B350 sits within a 400 Ampere "JJ" Frame, but amperage is only one piece of the replacement puzzle. This is a three-pole, JJ3-frame molded case circuit breaker, identified as Type ET and rated at 40°C. Put those numbers alongside the nameplate information from the breaker you're replacing. If the frame, pole count, amperage, dimensions, and electrical ratings agree with the existing equipment requirements, you have the information needed to evaluate form, fit, and function. The JJ3B350 is built to last and is intended for compatible existing and legacy electrical systems.
Key Features and Benefits
- 350A rating with three poles for applications calling for this exact electrical arrangement.
- The JJ3 frame provides a specific reference when identifying a replacement.
- Type ET, 400 Ampere "JJ" Frame identification adds another useful compatibility checkpoint.
- Rated at 40 °C according to the available specifications.
Technical Specifications
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Part Number: JJ3B350
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Product Type: Molded Case Circuit Breaker
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Frame Type: JJ3
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Type: ET
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Frame Identification: 400 Ampere "JJ" Frame
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Amperage: 350A
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Poles: 3
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AIC at 240VAC: 42 kA
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AIC at 480VAC: 30 kA
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AIC at 600VAC: 22 kA
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Temperature Rating: 40°C
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Width: 9.00 in.
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Height / Length: 11.00 in.
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Depth: 4.00 in.
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Dimensions: 9.00 in. W × 11.00 in. L × 4.00 in. D
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Approximate Ship Weight: 22.00 lb.
Material Compliance and Certifications
The available specifications do not list UL, CSA, IEC, RoHS, REACH, or other certification or material-compliance information for the JJ3B350. Rather than assuming approval based on the breaker type or frame designation, verify any required certification from the product labeling or applicable technical documentation.
Where It Works Best
The JJ3B350 is suited to compatible existing and legacy electrical equipment that requires a 350A, three-pole JJ3-frame molded-case circuit breaker. It's especially relevant when you're trying to keep existing equipment in service and need a replacement that corresponds to the original physical and electrical requirements.
Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. CIRCUIT BREAKER SUPERSTORE® is an independent reseller and is not an authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do not apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.
Siemens®, I-T-E®, and Murray® are registered trademarks of Siemens AG. Products sold are surplus, used, or refurbished and are NOT supplied by Siemens AG or its affiliates.
Specifications
- Width:9.0
- Height:11.0
- Depth:4.0
- Poles:3
- Amperes:350
- A.I.C. Rating & Volts:22k @ 600VAC; 30k @ 480VAC; 42k @ 240VAC
- Type:JJ3
- Approx Dimensions:9.00"W x 11.00"L x 4.00"D
- Additional Notes:40°C, Type ET 400 Ampere "JJ" Frame, Molded Case Circuit Breaker - discontinued by the Manufacturer
Returns are easy
You may return unused items within 30 days of delivery for a full refund.
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CIRCUIT BREAKER SUPERSTORE® provides a limited 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer).