Megger DCM320 400A AC Clamp Meter
Cover everyday electrical checks with the Megger DCM320 Clamp Meter. Measure AC current up to 400A, AC and DC voltage up to 600V, and resistance up to 20MΩ. An audible continuity function adds another useful check to the same compact instrument.
Designed for installation, maintenance and inspection, the DCM320 suits electrical contractors and users working on electrical systems and equipment.
Its clamp accommodates cables up to 27mm in diameter. Data hold keeps a reading on screen when the cable position makes the display difficult to see.
Request a quote for the Megger DCM320 today. Tell us which measurements you need and the cable sizes you work with.
Megger DCM320 Key Features:
- AC current measurement: Measure up to 400A at 50–60Hz
- Voltage testing: Check AC and DC voltages up to 600V using the supplied test leads
- Resistance measurement: Measure resistance up to 20MΩ
- Audible continuity: A buzzer sounds when resistance is below 20Ω
- Data hold: Freeze the displayed value to make readings easier to view
- 27mm conductor capacity: Accommodates cables up to 27mm in diameter
- Portable design: Weighs 225g including batteries
- Battery life: Megger specifies 200 hours from two AAA alkaline batteries
Why choose the Megger DCM320?
✓ Bring several checks into one instrument
The DCM320 combines clamp current measurement with voltage, resistance and continuity testing. This gives you a practical set of functions for checking electrical systems and equipment.
Use the clamp for AC current measurements and the supplied leads for voltage and resistance checks.
✓ Read results in confined spaces
Data hold freezes the displayed reading, giving you more time to check it. This is useful when the position of a cable makes the screen hard to see.
The large numeric LCD displays your measurements clearly.
✓ Check continuity with an audible indication
The continuity buzzer sounds below 20Ω, providing an audible indication during a check. The response time is less than 50ms.
Alongside resistance measurement up to 20MΩ, this helps make the DCM320 useful for a range of routine electrical checks.
✓ Carry it between testing locations
The DCM320 measures 56 × 188 × 28mm and includes a carry pouch. Its compact body is convenient to keep with your testing equipment.
The instrument is rated to withstand a 1.2m drop onto a hard surface without damage. It also carries an IEC/EN 61010-1 CAT III 600V safety rating.
What Comes with the Megger DCM320?
- Megger DCM320 Digital Clamp Meter.
- Batteries
- Carry Pouch
- User Guide
- Test Leads
Optional accessories include standard and 500mA fused replacement test lead sets with crocodile clips.
Specifications:
| Feature | Specification |
| Part number | 1000-304 |
| AC current | Up to 400A |
| AC current ranges | 0–40.0A; 40.0–200.0A; 201–400A |
| AC current frequency | 50–60Hz |
| AC voltage | Up to 600V |
| DC voltage | Up to 600V |
| Resistance | Up to 20MΩ |
| Continuity buzzer | Sounds below 20Ω; off above 50Ω |
| Continuity response time | Less than 50ms |
| Sampling rate | 1.5 readings per second |
| Data hold | Included |
| Maximum conductor diameter | 27mm |
| Display | 2000-count LCD with large numeric readout |
| Safety rating | IEC/EN 61010-1 CAT III 600V |
| Power supply | Two AAA alkaline batteries |
| Battery life | 200 hours |
| Dimensions | 56 × 188 × 28mm |
| Weight | 225g including batteries |
| Warranty | 1 year |
❓ Frequently Asked Questions (FAQ)
Q1: What does the Megger DCM320 measure?
A. It measures AC current up to 400A, AC and DC voltage up to 600V, and resistance up to 20MΩ. It also provides audible continuity checking.
Q2: Can the DCM320 measure DC current?
A. No. The clamp measures AC current. DC voltage measurement up to 600V is available through the test leads.
Q3: What does data hold do?
A. It freezes the displayed value, giving you more time to read the measurement when working in a confined or awkward position.
Q4: Are test leads included?
A. Yes. The DCM320 comes with test leads, batteries, a carry pouch and a user guide.
Q5: What batteries does it use?
A. It uses two AAA alkaline batteries. Megger lists a battery life of 200 hours.
Q6: What warranty comes with the DCM320?
A. The supplied datasheet specifies a one-year warranty.
Request your Megger DCM320 quote and discuss the measurements you need for your electrical testing work.