Fieldpiece ACH4 400A AC Clamp Accessory Head
by Fieldpiece
$100.86
The Fieldpiece ACH4 is a compact clamp-on accessory head that converts AC current up to 400A into a millivolt AC signal, letting you read motor and compressor run/start amperage directly on a compatible Fieldpiece meter. The angled jaw opens to 1.8" for quick, one-handed wire isolation in tight electrical panels.
Key Features
- Angled jaw claw isolates single conductors for fast, accurate testing
- Converts current directly to a millivolt AC signal (1A = 1mV)
- Ideal for checking motor and compressor run/start amps
- Works standalone with the EHDL1 handle or wirelessly via the EH4W kit
Specifications
- Current range: 1–400A AC (RMS)
- Conversion rate: 1A AC to 1mV AC
- Resolution: 0.1A
- Accuracy: ±(1.5% rdg + 0.2A) 1–20A; ±(2.5% rdg + 0.3A) 20–100A; ±(3.5% rdg + 0.5A) 100–400A
- Frequency: 50–60Hz
- Maximum conductor diameter: 1.18" (30mm)
- Safety rating: CAT III 300V
Compatibility
Plugs into Fieldpiece HS26, HS33, HS35 and HS36 stick meters, the EHDL1 electronic handle, EH4W wireless handle, DL3 data logger and HG2/HG3 system analysers. Also works with any DMM featuring an mVAC range via the AHDL1 adaptor handle.
Model: ACH4
