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Carling Technologies 8C4BB21 Panel Hole Plug Accessory

The CARLING TECHNOLOGIES 8C4-B-B21 panel hole plug accessory is a crucial component for circuit breaker panels, ensuring a clean and professional finish. It's compatible with A, B, C, and D-Series circuit breakers and offers multiple mounting options including front panel snap-in and threaded inserts. Available in a range of colors and finishes, this accessory provides a versatile solution for various industrial and commercial applications. It is designed to provide a secure and aesthetically pleasing finish to circuit breaker panels.

Authorized Distributors
Source:Newark
Part No:8C4-B-B21
Stock:27
Inv Date:06-06-2026
Price: Unit price: $10.5
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Source:DigiKey
Part No:8C4BB21
Stock:0
Inv Date:06-06-2026
Price: Unit price: $36.19
Buy/RFQ:
Part No:8C4-B-B21
Stock:0
Inv Date:06-07-2026
Price: Unit price: $57.56
Buy/RFQ:
Part No:8C4-B-B21
Stock:0
Inv Date:06-06-2026
Price: Unit price: $37.15
Buy/RFQ:
Part No:8C4-B-B21
Stock:74
Inv Date:06-06-2026
Price: Unit price: $58.17
Buy/RFQ:
Part No:8C4-B-B21
Stock:74
Inv Date:06-06-2026
Price: Unit price: $58.17
Buy/RFQ:

Carling Technologies 8C4BB21 Panel Hole Plug Accessory Specifications:

  • Accessory Code: 1
  • Series: A & B-Series
  • Poles: One Pole
  • Actuator Type: M-Series Rocker
  • Mounting Style: Front Panel Snap-In
  • Color: White (M-Series only)
  • Finish: Matte
  • Interface with Auxiliary Switch: Yes
  • Auxiliary Switch Terminal Type: TAB, 0.110 Inches (Symmetrical terminal spacings)

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Frequently Asked Questions

Where can I buy Carling Technologies 8C4BB21?

You can click on the BUY or RFQ button to purchase 8C4BB21 from an authorized Carling Technologies distributor.

How do I troubleshoot issues or seek technical support for part 8C4BB21?

You can download the 8C4BB21 datasheet or visit the Carling Technologies website for support.

Who is the manufacturer of 8C4BB21?

Carling Technologies

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