Megger RCDT320 Residual Current Device Tester

£532.80
Megger RCDT300 Series: RCDT310    RCDT320    RCDT330
RCD Test Ranges (to EN61557-6)  
Supply Voltage RCDT310: 100V to 280V (45Hz to 65Hz)
RCDT320: 50V to 280V (45Hz to 65Hz)
RCDT330: 50V to 280V (45Hz to 65Hz)
Minimum voltage 71V for 300mA RCDs, 100V for 500mA RCDs and 205V for 1000mA 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  
AC Range 0 to 300V (25 to 450Hz)
Accuracy ±2% ± 2 digits
Frequency Measurements (RCDT320/330 Only)  
Range 25 to 450Hz
Accuracy 25 to 199.9Hz ± 0.1Hz
200Hz to 450Hz ± 1Hz
Fault (Touch) Voltage  
Displayed Range 0 to 50V
Error +5%/+15% ± 0.5V
Programmable RCD Step Increments  
10mA to 50mA 1mA steps
50mA to 500mA 5mA steps
500mA to 1000mA 10mA steps
Test Result Storage (1000 Results) - RCDT330 Only  
Job Number 256 locations
Distribution Board Number 99 locations
Circuits 99 locations
Phases P1, P2, P3
Temperature and Humidity  
Operating Range -5 to 40°C
Operating Humidity 93% RH at +40°C max
Storage Range -25 to 70°C
Maximum Altitude 2000m
Environmental Protection IP54
Safety  
Rating IEC 61010-1 CAT III 300V phase to earth
Power Supply  
Batteries 8 x 1.5V cells IEC LR6 type (AA alkaline)
Rechargeable 8 x 1.2V NiCd or NiMH cells
Battery Life 2000 consecutive tests
General Specs  
Weight 980g
Dimensions 203 x 148 x 78mm
E.M.C In accordance with IEC61326-1

Description

Megger RCDT300 Series Residual Current Device Tester


The RCDT330 additionally offers the facility to save test results to internal memory. Over 1000 result can be saved on site, and downloaded to a computer when convenient. Data is stored in non-volatile memory, being retained when the instrument is switched off or batteries are exhausted. A Job reference number can be selected for a range of results, allowing separate locations to be tested with the same tester and easily separated when downloaded. A memory bar graph acts as a ‘Fuel Gauge’ showing how much memory has been used Test results are downloaded to CSV (Comma Separated Variable) spreadsheets, and can be imported into Microsoft Excel®. If certificates or reports are required, the results can be downloaded directly into Megger Powersuite Professional with a range of features for creating professionally finished documentation for NICEIC, ECA BS and other standard formats.

 

Key Features:

  • n Tests standard, DC, selective, and programmable RCDs 
  • Ramp testing n Auto (Remote) testing 
  • 3 Phase safe n Enables testing on 110 V centre tapped supplies.
  • Tough rubber armoured case with built-in cover 
  • Weatherproof to IP54
  • USB interface for downloading test result

 

Description:

Standard test ranges 

  • The RCDT300 series can perform 1/2I, 1xI and 5xI tests on RCDs rated at 30 mA, 100 mA, 300 mA and 500 mA on general and selective (time delayed) RCDs. The RCDT320/ 330 can also test RCDs rated at 10 mA and 1000 mA. All units offer DC testing of RCD’s.

Test times for normal and Selective RCDs are:

Normal Selective

1/2I              2s                2s

  I            300ms             2s

5I            40ms        150ms

  • 5I tests are available on RCDs rated up to 100 mA.

Polarity

  • All RCD's can be tested at 0° or 180°
 Selective RCDs
 
  • Selective breakers have a time delay in tripping. When selected, trip test times are extended and a 30s delay is allowed between the measurement of the fault voltage and the application of the test current. 
 Touch voltage
 
  • Touch Voltage is measured at the start of the RCD test. If enabled it is displayed on the analogue arc on completion of testing. 
             Touch voltage inhibit is selectable from 25 V or 50 V.
 
 Tough
 
  • Designed to take the bashing that testers receive on site, the Megger RCDT testers are rubber armoured.
  • The rigid display cover folds right out of the way during testing and locks down to protect the display when it is finished. 
 Simple to use
 
  • No buried functions mean it is obvious how to use the Megger RCDT.
  • Colour coded ranges help test range selection, reducing test times and fault location.
  • A user guide in the lid provides all the basic information. Hands free use
  • It hangs comfortably around the neck for hands-free use because the instrument is carefully balanced. 
 DC sensitive RCDs
 
  • DC sensitive RCDs can be tested at 1/2I, 1xI and 5xI. 
 Ramp Testing
 
  • (RCDT320/330) n To measure the trip current of an RCD. Current level is slowly increased from 1/2I to 1I (+10%). When the RCD trips the trip current is displayed and held on the screen.
  • Very useful diagnosing nuisance tripping of RCDs.

 

Megger RCD300 Series Selection Guide


Features & Specification

More Information
Key Features Manufacturer Certificate Included, Auto RCD Test, Ramp Test
Product Stock Status Next Day Delivery (subject to availability)
Manufacturer Megger
Short Description
Megger RCDT300 Series: RCDT310    RCDT320    RCDT330
RCD Test Ranges (to EN61557-6)  
Supply Voltage RCDT310: 100V to 280V (45Hz to 65Hz)
RCDT320: 50V to 280V (45Hz to 65Hz)
RCDT330: 50V to 280V (45Hz to 65Hz)
Minimum voltage 71V for 300mA RCDs, 100V for 500mA RCDs and 205V for 1000mA 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  
AC Range 0 to 300V (25 to 450Hz)
Accuracy ±2% ± 2 digits
Frequency Measurements (RCDT320/330 Only)  
Range 25 to 450Hz
Accuracy 25 to 199.9Hz ± 0.1Hz
200Hz to 450Hz ± 1Hz
Fault (Touch) Voltage  
Displayed Range 0 to 50V
Error +5%/+15% ± 0.5V
Programmable RCD Step Increments  
10mA to 50mA 1mA steps
50mA to 500mA 5mA steps
500mA to 1000mA 10mA steps
Test Result Storage (1000 Results) - RCDT330 Only  
Job Number 256 locations
Distribution Board Number 99 locations
Circuits 99 locations
Phases P1, P2, P3
Temperature and Humidity  
Operating Range -5 to 40°C
Operating Humidity 93% RH at +40°C max
Storage Range -25 to 70°C
Maximum Altitude 2000m
Environmental Protection IP54
Safety  
Rating IEC 61010-1 CAT III 300V phase to earth
Power Supply  
Batteries 8 x 1.5V cells IEC LR6 type (AA alkaline)
Rechargeable 8 x 1.2V NiCd or NiMH cells
Battery Life 2000 consecutive tests
General Specs  
Weight 980g
Dimensions 203 x 148 x 78mm
E.M.C In accordance with IEC61326-1

Delivery

Updated January 2024

Please note, our cut-off time is 2:00pm

Orders requiring calibration 

Whilst we take the greatest care to get all orders dispatched and delivered to you in the stated time frame, orders received PM and requiring calibration may on occasion miss dispatch that day, according to the complexity of the calibration.
Be assured they will ship on the next dispatch this in most cases should not add more than 24 hours to your delivery.

Bank/Public Holidays

Predicted delivery times are based on regular trading days Monday to Friday. Public holidays, bank holidays and weekends are outside the usual scope
of our dispatch and subject to activities/holidays of our carriers and therefore may incur additional days lead time to your order.

*UK Mainland (Revised March 2021)

Service Price
Standard FREE 2-3 Day Courier Delivery – UK Mainland only - Zones A & B - Order value OVER £75.00 ex VAT FREE
Standard FREE 2-3 Day Courier Delivery – UK Mainland only - Zones A & B - Order value UNDER £75.00 ex VAT £4.95
Next WORKING Day (excludes Saturdays, Sundays and public holidays)  – UK Mainland only - Zones A & B  - ANY order value - Order by 2:00pm £7.75
Saturday ANYTIME Delivery - Order by 2:00pm £9.95
 

 

 

 

 

Delivery Surcharges

Because of the high cost of carriage, we regretfully need to apply a surcharge on all deliveries made in the following regions:

  • Zones A & B  - Mainland delivery rates apply. 
  • Zone C - Scottish Highlands (Charges are calculated at the checkout).
  • Zone D - Outer Hebrides, Orkney Isles, Shetland Isles, Isle of Man, Scilly Isles, and Channel Islands (Charges are calculated at the checkout).
  • Zone E - Northern Ireland (Charges are calculated at the checkout).
  • Zone F - Republic of Ireland (Charges are calculated at the checkout).

Offshore Services

All offshore deliveries are a 3-4 day service as standard. This includes Channel Islands, Northern & Southern Ireland, Scottish Islands, Isle of Man and the Scilly Isles.

International delivery

International delivery charges are automatically added to your order at the checkout. For any questions regarding international deliveries please contact us at sales@isswww.co.uk

Export 

All export inquiries should be directed to the export division before placement of order.

If no shipping option is available to your selected country please call us FREE on 0800 0224 060 to discuss your requirements.
All stated prices are subject to VAT at the current rate where applicable.
E&OA