Megger's mid-range RCD tester (part of the RCDT300 series), the RCDT320 improves upon the basic functionality of the RCDT310 and has several advanced features not available on the previous model.
This residual current device (RCD) tester is suitable for use on a wide variety of RCD types, including selective breakers, DC breakers (1/2 I, I, I and 5I), 30/100/300/500mA and 10mA / 1A RCDs and is used to evaluate that they are correctly implemented into electrical systems and trip out at the appropriate level.
One of the main differences between this tester and the RCDT310 is the inclusion of ramp and auto sequence testing procedures. The ramp function automatically gradually increases the current level applied during the tester while the auto sequence testing automatically cycles through the necessary testing procedures to get quick, accurate and comprehensive results with minimal input from the user.
You can view the exact difference between each model in Megger's RCDT300 series by taking a look at the table in the tech specs section further below.
Megger RCDT320 RCD Tester Key Features
- Performs 1/2 I, 1 x I and 5 x I tests on RCDs rated at 30mA, 100mA, 300mA and 500mA
- Suitable for use with both general and selective (time-delayed) RCD types
- Also suitable for testing RCDs rated at 10mA and 1000mA
- DC RCD testing
- Selectable polarity - test at 0 or 180°
- Measurements of touch voltage at the start of the test (with selectable voltage inhibit of 25V or 50V)
- Rubber-armoured casing - protects the tester from harm at all times in even the most arduous industrial environments
- Rigid display cover - folds down and protects the screen and tester functions when not in use
- Colour-coded ranges - easily choose what you need (user guide also included in tester lid)
- Ramp testing - current level is slowly increased until the RCD trips
- Automatic testing - all this mode requires is you to reset the RCD each time the test completes. All results are stored on the meter for reference
What's Included?
- Megger RCDT320 RCD Tester
- Mains Plug Test Lead (BS1363)
- 2-Wire Test Lead With Prods and Clips
Accessories
There are a number of accessories available for the Megger RCDT320 RCD Tester. Please contact our sales team for further information or to add an item listed below to an order.
Our SKU | Megger's Part Code | Product |
MEGRCDA1 | 6231-601 | UK Mains Plug Test Leadset 3-pin 1 wire (BS1363 plug) |
MEGLTA2 | 1001-883 | Test lead set 3-wire Red/Black/Green with prods/clips (exposed tip) |
1001-976 | 1003-132B | Test Lead Set Red/Green Unfused (Boxed) |
1000-562 | 1000-562 | Test Lead Replacement Probe Cap [Clear] Bag of 20 |
6220-810 | 1004-323B | SIA10 Socket Interface Adaptor UK to 3 Leads x 4mm (Boxed) |
1005-469 | 1005-469 | SIA10 Socket Interface Adaptor LTW |
1004-610 | 1004-610 | Lead USB Type A to Type B 1.8m Data/Printer Cable |
1007-003 | 1007-003 | Blow Moulded Case Catch - Pack of 10 |
1007-167 | 1007-167 | Blow Moulded Case MIT/LT/RCDT 300 Series |
Megger RCDT300 Range Differences
Model Number | RCD310 | RCDT320 | RCDT330 |
---|---|---|---|
1/2 I, 5I RCD Trip Time Test | √ | √ | √ |
Selective Breakers | √ | √ | √ |
DC Breakers (1/2 I, I, 5I) | √ | √ | √ |
30, 100, 300, 500mA RCDs | √ | √ | √ |
10mA/1A RCDs | - | √ | √ |
RCD Trip Current Test (RAMP) | - | √ | √ |
Auto Sequence Test | - | √ | √ |
0/180° Polarity Selection | √ | √ | √ |
Touch Voltage Display Inhibit (Selectable) | √ | √ | √ |
Max Touch Voltage (25V/50V) | √ | √ | √ |
Operating Range 100 to 280V | √ | - | - |
Operating Range 50 to 280V | - | √ | √ |
Programmable RCDs | - | - | √ |
Frequency Measurement | - | √ | √ |
3-Phase Safe | √ | √ | √ |
Large, Clear Display | √ | √ | √ |
Backlight | - | √ | √ |
Battery Status Indication | √ | √ | √ |
Auto Power Down | √ | √ | √ |
Fuse Blown Indication | √ | √ | √ |
IP54 Weatherproof | √ | √ | √ |
Result Storage | - | - | √ |
Downloadable | - | - | √ |
USB Interface | - | - | √ |
IEC61010-1 CAT III 300V | √ | √ | √ |
EN61557 | √ | √ | √ |
Megger RCDT300 Series Technical Specifications
RCD Test Ranges (to EN61557-6) | |
---|---|
Supply Voltage | RCDT310 100 V - 280 V 45 Hz to 65 Hz RCDT320 50 V - 280 V 45 Hz to 65 Hz RCDT330 50 V - 280 V 45 Hz to 65 Hz Minimum voltage 71 V for 300 mA RCDs, 100 V for 500 mA RCDs and 205 V for 1000 mA RCDs |
Test Current Accuracy | |
No Trip Test | (1/2I) –8% to –2% |
Trip Test | (I, 5I) +2% to +8% |
Trip Time | ±1% ±1ms |
Voltage Measurement (All Models) | |
Range (AC) | 0 V - 300 V 25 Hz to 450 Hz |
Accuracy | ±2% ±2 digits |
Frequency (RCDT320/RCDT330 Only) | |
Range | 25 Hz to 450 Hz |
Accuracy | 25.0 Hz to 199.9 Hz ±0.1 Hz 200 Hz to 450 Hz ±1 Hz |
Fault (Touch) Voltage | |
Displayed Range | 0 V to 50 V |
Error | +5%/+15% ±0.5 V |
Programmable RCD Step Increments | 10 mA to 50 mA - 1 mA steps 50 mA to 500 mA - 5 mA steps 500 mA to 1000 mA - 10 mA steps |
Test Result Storage (RCDT330 Only) | |
Job Number | 256 locations |
Distribution Board Number | 99 locations |
Circuits | 99 locations |
Phases | P1, P2, P3 |
Other | Last recorded result may be recalled to the display. All data can be downloaded to a PC using Download Manager (supplied) or Megger Powersuite Professional Windows software |
Temperature and Humidity | |
Operating Range | -5°C to +40°C |
Operating Humidity | 3% R.H. at +40°C max. |
Storage Range | -25°C to +70°C |
Maximum Altitude | 2000m |
Environmental Protection | IP54 |
Safety | |
Requirements | Meets the requirements of IEC61010-1 Cat III 300 V phase to earth. |
IEC61557 | Complies with the following parts of EN61557, Electrical safety in low voltage systems up to 1000 V ac and 1500 V dc- Equipment for testing, measuring or monitoring of protective measures: Part1-General Requirements Part4-Residual current devices |
Power Supply | |
Batteries | 8 x 1,5 V cells IEC LR6 type (AA alkaline). |
Rechargeable | 8 x 1.2 V NiCd or NiMH cells. |
Battery Life | 2000 consecutive tests |
Weight and Dimensions | |
Weight | All units 980 gms |
Dimensions | All units 203 x 148 x 78 mm |
E.M.C | In accordance with IEC61326-1 |
Reviews
SKU | MEGRCD2 |
---|---|
Manufacturer Part Code | RCDT320-EN-BS |
Model Ref | RCDT320 |
Country of Origin | United Kingdom |