512-BCB Allen Bradley

Description

Product Name: 512-BCB  Allen Bradley Power module

Product details:

That’s a very specific Allen-Bradley catalog number! The full part number is typically a combination of characters, where “512-BCB” defines a family of products: NEMA Combination Starter Disconnects.

The exact specifications depend on the characters that follow “512-BCB” (which specify voltage, overload relay type, enclosure, etc.). However, I can provide a comprehensive overview based on the product family.

The 512 series is an older, now discontinued line from Rockwell Automation (Allen-Bradley). The current recommended replacement is typically a newer starter product.

Here is a detailed product description, parameters, advantages, precautions, and applications for the Allen-Bradley 512-BCB NEMA Combination Starter Disconnect in English.

🛠️ Allen-Bradley 512-BCB NEMA Combination Starter Disconnect

Product Description

The Allen-Bradley Bulletin 512-BCB is a NEMA Combination Starter Disconnect. This single unit integrates two primary electrical control components:

1. A Motor Starter: The device used to start, stop, and protect a motor.

2. A Disconnect Switch: A manual or power-operated switch that allows an operator to safely de-energize (disconnect) the circuit for maintenance or safety.

The “BCB” designation in this family often indicates a Size 1 NEMA starter with a Fusible Disconnect switch in a Type 4/4X Stainless Steel Enclosure.

Key Product Parameters (Typical for 512-BCB Size 1)

Product Advantages (General for Combination Starters)

• Compact Integration: Combining the disconnect and the starter into one enclosure saves space, simplifies wiring, and reduces installation time compared to installing two separate components.

• Enhanced Safety: The disconnect switch ensures the power is completely removed from the starter and motor circuit, which is crucial for personnel safety during maintenance (Lockout/Tagout procedures).

• Motor Protection: The integrated overload relay (Eutectic or Solid State) provides reliable thermal protection for the connected motor, extending its lifespan.

• Environmental Protection: The NEMA 4/4X Stainless Steel Enclosure offers superior resistance to dust, corrosion, and harsh washdown environments, making it suitable for food processing, chemical plants, and outdoor applications.

• Compliance: Designed to meet North American (NEMA) standards for industrial control equipment.

Important Considerations (Precautions)

• Discontinued Product: The Bulletin 512 series was discontinued by Rockwell Automation as of October 2016. While replacement parts may still be found, users should consider migrating to a current product line (e.g., Bulletin 500 or E300-based solutions) for long-term support and modern features.

• Fuse Selection: For the “Fusible Disconnect” type, the correct Class R (or other specified class) fuses must be installed based on the motor’s full load current and code requirements. Incorrect fuses can compromise short-circuit protection.

• Overload Setting: The overload relay must be properly adjusted (set) to match the motor’s full-load ampere (FLA) rating to ensure effective thermal protection.

• Enclosure Maintenance: Despite being NEMA 4/4X, the enclosure seals and gaskets must be maintained to ensure the integrity of the environmental protection, especially in washdown areas.

• Wiring: All power and control wiring must be sized and terminated correctly according to local electrical codes and the device’s torque specifications.

Product Applications

The 512-BCB is typically used for directly starting and stopping 3-phase AC motors in demanding industrial environments where a high degree of protection is required.

• Corrosive Environments: Chemical processing, wastewater treatment.

• Washdown Areas: Food and beverage processing plants, pharmaceutical manufacturing.

• Outdoor Installations: Pumps, conveyors, and fans exposed to weather.

• General Industrial Control: Any application requiring a rugged, enclosed combination motor starter for motors up to 10 HP.

Advantages: Foxboro, OVATION, TRICONEX, Allen-Bradley, ABB, Motorola, Siemens Moore, Ge Fanuc, Woodward, Bently Nevada and other major import brands!

We have the same series of models in stock.  If you don’t find the model you need, please contact us and we will provide you with an official quotation！

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