Megger RCDT330 RCD Tester
- Brand
- Megger
- Model number
- RCDT330
- Category
- RCD / ELCB Testers
RCD tester for 10 mA to 1000 mA devices: ½×, 1× and 5× trip-time tests, ramp and auto-sequence tests, standard, Type A and selective RCDs, supply voltage and frequency, and memory with USB download.
Price and availability on request
Key features
- Tests standard, Type A (pulsed DC sensitive) and selective (Type S) RCDs
- ½I, 1I and 5I trip-time tests, starting at 0° or 180° of the supply waveform
- Ramp test measures the actual trip current, useful for diagnosing nuisance tripping
- Auto (remote) sequence test: runs ½I, I and 5I tests at 0° and 180° while the operator stands by the RCD to reset it
- Extended operating current range for 10 mA to 1000 mA devices
- Measures AC supply voltage and frequency
- Large LCD with backlight
- Saves over 1000 results in non-volatile memory, downloaded to a computer over USB
- Touch voltage measured at the start of each test, with a selectable 25 V or 50 V limit
- Three-phase safe: not damaged even if connected across phases; testing inhibited above 300 V
- Enables testing on 110 V centre-tapped supplies
- LED connection indicators and safety interlock
- Tough rubber-armoured case with built-in display cover; weatherproof to IP54
Specifications
| Supply | 50 V - 280 V, 45 Hz to 65 Hz (minimum 71 V for 300 mA, 100 V for 500 mA and 205 V for 1000 mA RCDs) |
|---|---|
| Test times, normal RCDs | ½I 2 s, I 300 ms, 5I 40 ms |
| Test times, selective RCDs | ½I 2 s, I 2 s, 5I 150 ms |
| 5I tests | On RCDs rated up to 100 mA |
| Test current accuracy | No trip test (½I) -8% to -2%; trip test (I, 5I) +2% to +8% |
| Trip time accuracy | ±1% ±1 ms |
| Ramp test | Current increased from ½I to 1I (+10%); trip current displayed and held |
| Fault (touch) voltage | Displayed range 0 V to 50 V, error +5% / +15% ±0.5 V |
| Range | 0 V - 300 V AC, 25 Hz to 450 Hz |
|---|---|
| Accuracy | ±2% ±2 digits |
| Range | 25 Hz to 450 Hz |
|---|---|
| Accuracy | ±0.1 Hz (25.0 Hz to 199.9 Hz), ±1 Hz (200 Hz to 450 Hz) |
| Locations | Job number 256, distribution board 99, circuits 99, phases P1, P2, P3 |
|---|
| Communications | USB interface; Download Manager (supplied) or Megger CertSuite |
|---|---|
| Power | 8 x 1.5 V IEC LR6 (AA alkaline) cells, or 8 x 1.2 V NiCd or NiMH rechargeable cells |
| Battery life | 2000 consecutive tests |
| Safety | IEC 61010-1 Cat III 300 V phase to earth; EN 61557 |
| EMC | IEC 61326-1 |
| Operating temperature | -5 °C to +40 °C, 93% RH at +40 °C max. |
| Storage temperature | -25 °C to +70 °C |
| Maximum altitude | 2000 m |
| IP rating | IP54 |
| Dimensions | 203 x 148 x 78 mm |
| Weight | 980 g |
| Contents | Test leads; Calibration certificate |
|---|
Specifications are from the manufacturer's published information. Confirm critical values with us or the datasheet before ordering.
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