Siemens CMD63B500 500 Amp Enclosed Molded Case Circuit Breaker – 3 Pole – 600 V – Fuseless Current Limiting – NEMA 12 Enclosure – Sentron MD Frame

The Siemens CMD63B500 is a 500 Amp, 3-pole, 600 V enclosed molded case circuit breaker assembly from the Siemens Sentron Series, MD Frame. It features a thermal-magnetic trip unit with a non-interchangeable design and fuseless current-limiting breaking capacity.

The breaker is supplied as an assembled unit with a NEMA Type 12 enclosure (MND612), providing an enclosed configuration for compatible low-voltage electrical distribution applications. It is calibrated at 40°C and includes line-side and load-side lugs (TA3K500) suitable for 1/0 AWG through 500 kcmil copper or aluminum conductors.

A neutral accessory is identified by catalog number W60993 and must be ordered separately.

Specifications

• Manufacturer: Siemens
• Brand: Siemens
• Product Type: Enclosed Molded Case Circuit Breaker
• Series: Sentron
• Frame: MD
• Catalog Number / MPN: CMD63B500
• Primary Rating: 500 Amp
• Poles / Configuration: 3 Pole
• Voltage: 600 V
• Breaking Capacity: Fuseless Current Limiting
• Trip Type: Thermal-Magnetic
• Trip Unit: Non-Interchangeable
• Calibration Temperature: 40°C
• Assembly Type: Enclosed / Assembled
• Enclosure Type: NEMA Type 12
• Enclosure Catalog Number: MND612
• Terminals: Line & Load-Side Lug Terminals
• Lug Catalog Number: TA3K500
• Conductor Wire Range: 1/0 AWG – 500 kcmil
• Conductor Material: Copper / Aluminum (Cu/Al)
• Neutral Accessory: W60993 (Order Separately)
• Protection: Overload and Short-Circuit

Part Numbers & Identification

• Manufacturer: Siemens
• Brand: Siemens
• Catalog Number: CMD63B500
• Series: Sentron
• Frame: MD
• Current Rating: 500 A
• Pole Count: 3 Pole
• Product Type: Enclosed Thermal-Magnetic Molded Case Circuit Breaker
• Trip Unit: Non-Interchangeable
• Breaking Capacity Classification: Fuseless Current Limiting
• Enclosure Part Number: MND612
• Lug Part Number: TA3K500
• Neutral Part Number: W60993 (Ordered Separately)
• UPC:783643001572 

Compatibility

The Siemens CMD63B500 is an assembled enclosed breaker intended for compatible Siemens Sentron MD Frame electrical distribution applications. It incorporates the MND612 NEMA Type 12 enclosure and TA3K500 line/load lugs, with provision for the separately ordered W60993 neutral accessory.

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.