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EXTECH CB20 Circuit Breaker Tester

The Extech CB20 offers a comprehensive circuit breaker testing and receptacle troubleshooting solution designed for electrical professionals. It features a receiver that quickly locates 90VAC to 120VAC circuit breakers and fuses, with microprocessor-based automatic sensitivity adjustment for accurate detection. The device provides clear audible and visual indicators, including a low battery warning. The included receptacle tester verifies GFCI circuits, identifies wiring faults, and detects reversed or open connections. Its ergonomic design ensures ease of use, making it ideal for troubleshooting residential and commercial electrical systems efficiently and safely.

Authorized Distributors
Source:DigiKey
Part No:CB20
Stock:37
Inv Date:06-05-2026
Price: Unit price: $81.91
Buy/RFQ:
Part No:CB20
Stock:0
Inv Date:06-06-2026
Price: N/A
Buy/RFQ:
Part No:CB20
Stock:0
Inv Date:06-05-2026
Price: Unit price: $104.99
Buy/RFQ:
Part No:CB20
Stock:0
Inv Date:06-05-2026
Price: Unit price: $98.99
Buy/RFQ:
Part No:CB20
Stock:0
Inv Date:06-05-2026
Price: Unit price: $120
Buy/RFQ:

EXTECH CB20 Circuit Breaker Tester Specifications:

  • Dimensions: 7.7x2.2x1.4 inches (196x55x36 mm)
  • Weight: 4.8 oz (136 g)
  • Receiver Voltage Range: 90VAC to 120VAC
  • Sensitivity Adjustment: Microprocessor-based automatic
  • Indicators: Audible and visual alarms
  • Battery: 9V included, low battery indicator
  • Receptacle Tester Dimensions: 4.6x2.4x1.4 inches (118x60x35 mm)
  • Tester Weight: 3.2 oz (91 g)
  • GFCI Testing: Confirm proper wiring, test for faults
  • LED Indicators: 2 test conditions, 6 wiring faults detected
  • Includes: Receiver, transmitter, 9V battery
  • Compliance: CE approved

Buy the Extech CB20 – Reliable Circuit Breaker Finder for Industrial Applications

Enhance your electrical troubleshooting with the Extech CB20 Circuit Breaker Finder and Receptacle Tester. This reliable device quickly locates circuit breakers and tests GFCI outlets, helping professionals and DIY enthusiasts diagnose wiring issues efficiently. Featuring audible and visual indicators, sensitivity adjustment, and a compact ergonomic design, the CB20 simplifies electrical troubleshooting in residential, commercial, and industrial settings. Order online today and experience fast, accurate circuit and wiring diagnostics for safer, more reliable electrical systems.

Order your Extech CB20 Series circuit breaker and receptacle tester today and ensure safe, quick troubleshooting for your electrical projects.

Frequently Asked Questions

Where can I buy EXTECH CB20?

You can click on the BUY or RFQ button to purchase CB20 from an authorized EXTECH distributor.

How do I troubleshoot issues or seek technical support for part CB20?

You can download the CB20 datasheet or visit the EXTECH website for support.

Who is the manufacturer of CB20?

EXTECH

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