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CB20

Extech CB20: Circuit Breaker Finder/Receptacle Tester

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Quickly Locate Circuit Breakers, Confirm Proper Wiring and Test GFCI Circuits

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Quickly Locate Circuit Breakers, Confirm Proper Wiring and Test GFCI Circuits

Locate the correct circuit breaker or fuse without turning off the power with the Extech CB20 Circuit Breaker Finder, which employs automatic sensitivity to quickly and accurately pinpoint the correct 90-Volt to 120 VAC circuit breaker or fuse. The CB20 is ideal for a range of applications, including locating branch circuit breakers without causing accidental power shutoffs, confirming proper wiring during electrical installation or repair, and testing receptacle ground fault operation. Complete with Receiver, Transmitter, and 9V battery.

Features:

  • Circuit Breaker Finder (Receiver):
    • Quickly locate Circuit Breakers and Fuses
    • Microprocessor-based automatic sensitivity adjustment
    • Audible and visual indication, low battery indicator
    • Ergonomic design
  • Receptacle Tester (Transmitter):
    • LED indication of 2 test conditions and 6 wiring faults
    • Test Reversed/Open Connections
    • Test GFCI circuits
  • Complete with Receiver, Transmitter, and 9V battery

DownloadDatasheet  

Specification

SpecificationsRange
Operating Voltage90 to 120VAC
Operating Frequency47 to 63Hz
Power supply9V battery (receiver)
Operating Temperature5ºC to 40ºC (41ºF to 104ºF)
Storage Temperature‐20°C to 60° C (‐4° F to 140° F)
Operating HumidityMax 80% up to 31ºC (87ºF) decreasing linearly to 50% at 40ºC (104ºF)
Storage Humidity<80%
Operating Altitude2000 meters (7000ft.) maximum
WeightTransmitter: 91g (3.2oz)
Receiver: 136g (4.8oz)
DimensionsTransmitter: 118 x 60 x 35mm (4.6 x 2.4 x 1.4″)
Receiver: 196 x 55 x 36mm (7.7 x 2.2 x 1.4″)

 

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