Amprobe CT-400 Signal Clamp

  • Improve accuracy and performance when there is no access to bare conductors
  • For use with Amprobe’s AT-6000 Advanced Wire Tracer Series – included with the AT-6030 kit
SKU: 4868025 Category:


The CT-400 Signal Clamp accessory is used to induce a signal into wires without access to bare conductors. For use with Amprobe’s Advanced Wire Tracers.


Measurement category CAT IV 600 V, CAT III 1000 V
Operating voltage 0 to 1000 V AC
Operating frequency Wire tracing: 32.768 kHz
AC current measurement: 45 Hz to 400 Hz
Response time Instantaneous
Current output of signal (typical) 1 mA/A for AC current measurement with multimeter
Signal voltage output (nominal) De-energized circuit: 2.4 V RMS, 24 Vp-p
Operating temperature 32 °F to 122 °F (0 °C to 50 °C)
Operating humidity 95%: 50 °F to <86 °F (10 °C to <30 °C)
75%: 86 °F to <104 °F (30 °C to <40 °C)
45%: 104 °F to <122 °F (40 °C to <50 °C)
Storage temperature and humidity -4 °F to 158 °F (-20 °C to 70 °C), <95% RH
Operating altitude 0 to 6561 ft (2000 m)
Pollution degree 2
IP rating IP 40
Drop test 3.28 ft (1 m)
Maximum conductor size 1.26 in (32 mm)
Dimensions (L x W x H) Approx. 5.9 x 2.75 x 1.18 in
(150 x 70 x 30 mm)
Weight Approx. 0.25 lb (0.114 kg)


AT-6000 How to Use the Signal Clamp

Induce a signal into a wire through insulation.

What’s Included

  • CT-400


Datasheet »
Product Manual »
Quick Start Guide »


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