Siemens CJD63B300 300 Amp Molded Case Circuit Breaker – 3 Pole – 600 V – 150 kA@480 V – Bolt-On – SENTRON Series

The Siemens CJD63B300 is a 300 Amp, 3-pole molded case circuit breaker from the Siemens SENTRON Series, Type CJD. It is rated for 600 V with a 150 kA interrupting rating at 480 V and features fuseless current-limiting protection. The breaker has a non-interchangeable thermal-magnetic trip unit with LI (Long-Time and Instantaneous) trip functions and is designed for bolt-on mounting. Lugs are not included.

Specifications

• Manufacturer: Siemens
• Brand: Siemens
• Product Type: Molded Case Circuit Breaker
• Series: SENTRON
• Type: CJD
• Catalog Number / MPN: CJD63B300
• Primary Rating: 300 Amp
• Poles / Configuration: 3 Pole
• Phase: 3 Phase
• Voltage: 600 V
• Interrupting Rating: 150 kA @ 480 V
• Interrupting Capacity: Fuseless Current Limiting
• Trip Type: Thermal-Magnetic
• Trip Unit: Non-Interchangeable
• Trip Functions: LI – Long-Time and Instantaneous
• Ambient Temperature Rating: 40°C
• Connection / Mounting: Bolt-On

Part Numbers & Identification

• Manufacturer: Siemens
• Brand: Siemens
• Catalog Number: CJD63B300
• Series: SENTRON
• Type: CJD
• Current Rating: 300 A
• Pole Count: 3 Pole
• Product Type: Thermal-Magnetic Molded Case Circuit Breaker
• Trip Unit: Non-Interchangeable
• Trip Functions: LI – Long-Time and Instantaneous
• UPC: 783643213593

Compatibility

The Siemens CJD63B300 is designed for compatible Siemens SENTRON Type CJD electrical distribution applications. Verify the specific panelboard or switchboard, system voltage, mounting configuration, and breaker compatibility before installation.

Returns are easy

You may return items within 10 days of delivery for a refund.

FREE Shipping on orders over $149.

My Circuit Breakers offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).

Same Day Shipping

We strive to ship out your items within one business day.

In rare circumstances, My Circuit Breakers may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.

My Circuit Breakers provides a comprehensive 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer). Extended warranties are available upon request.