Metrel A1422 Three-Phase and Welding Equipment Adaptor

The Metrel A1422 Active Three-Phase and Welding Equipment Adaptor works in conjunction with Metrel MI3321, MI3310 and MI3360 to carry out safety testing on three-phase appliances and ARC welding units. It has multiple sockets including CEE three-phase to 16A 5 pin, CEE three-phase to 32A 5 pin and CEEE single phase to 16A three-pin.

The adaptor can be used for three-phase appliance tests such as active polarity testing, differential leakage testing and three-phase RCD testing. The Metrel A1422 can take a maximum current of 40A and its multiple sockets are ideal for testing assorted industrial extension leads.

It is also possible to test ARC Welding Units with the Metrel A1422 thanks to various functions such as open circuit voltage testing circuit leakage measurement, no load voltage testing and welding insulation testing. 

Connection is easy with any supporting tester as each device will recognise the other and the user can take advantage of in-built automated test sequences that are saved to the internal memory.

The large memory can also be used to save test results before they are printed and reported using the software supplied with compatible supporting testers. A full set of accessories is included and waterproof casing shields the adaptor from water and dust ingress.

Key Features

• Suitable for use with MI3321, MI3310 and MI3360
• Three-phase appliance testing up to 40A
• Numerous sockets for extension lead testing
• Three-phase RCD testing function
• Open circuit voltage test on arc welding units
• Welding equipment tests (EN60974-4)
• Automatic recognition of supporting tester
• Internal memory stores test sequences and results

Differential leakage current (230/400 VAC or 120/208 VAC)
Differential leakage current readout

• Range: 0.00 mA ÷ 9.99 mA 
• Resolution: 0.01 mA 
• Accuracy: ±(5 % of reading + 5 digits)
• Power / Functional test (230/400 VAC or 120/208 VAC)

Apparent power readout

• Range: 0.00 kVA ÷ 24.00 kVA 
• Resolution: 0.01 kVA 
• Accuracy: ±(5 % of reading + 5 digits)

Active power readout

• Range: 0.00 kW ÷ 24.00 kW 
• Resolution: 0.01 kW 
• Accuracy: ±(5 % of reading + 5 digits)

Reactive power readout

• Range: 0.00 kW ÷ 24.00 kVAr 
• Resolution: 0.01 kVAr 
• Accuracy: ±(5 % of reading + 5 digits)

Power factor readout

• Range: 0.00 ÷ 1.00 
• Resolution: 0.01 
• Accuracy: ±(5 % of reading + 5 digits)

3-phase RCD / Test current (10 mA, 15 mA, 30 mA, 100 mA, 300 mA)

Portable RCD trip-out time readout (AC and A type PRCD)

• Range: 0 ms ÷ 300 ms (½ x I∆N, I∆N) / 0 ms ÷ 150 ms (2 x I∆N) / 0 ms ÷ 40 ms (5 x I∆N)
• Resolution: 1 ms / 1 ms / 1 ms 
• Accuracy: ±3 ms

Portable RCD trip-out current readout (B type PRCD)

• Range: 0.2 x I∆N ÷ 2.2 x I∆N 
• Resolution: 0.05 x I∆N 
• Accuracy: ±0.1 x I∆N

Continuity of the protective circuit (according to IEC/ EN 60974-4)

Test current set to 10 A

• Range: 0.00 Ω ÷ 1.99 Ω / 2.00 Ω ÷ 19.99 Ω 
• Resolution: 0.01 Ω / 0.01 Ω
• Accuracy: ±(5 % of reading + 3 digits) / ±10 %

Test current set to 200 mA

• Range: 0.00 Ω ÷ 1.99 Ω / 2.00 Ω ÷ 9.99 Ω / 10.0 Ω ÷ 19.9
• Resolution: 0.01 Ω / 0.01 Ω / 0.1 Ω
• Accuracy: ±(5 % of reading + 3 digits) / ±10 %

Insulation resistance (supply circuit to protective circuit); (welding circuit to protective circuit); (Insulation resistance supply circuit to welding circuit; (according to IEC/ EN 60974-4)

Insulation LN-PE readout; W-PE readout; LN-W readout:

• Range: 0.000 MΩ ÷ 0.500 MΩ / 0.501 MΩ ÷ 1.999 MΩ / 2.00 MΩ ÷ 19.99 MΩ / 20.0 MΩ ÷ 199.9 MΩ 
• Resolution: 0.001 MΩ / 0.001 MΩ / 0.01 MΩ / 0.1 MΩ 
• Accuracy: ±(10 % of reading + 5 digits) / ±(5 % of reading + 3 digits)

Insulation resistance (supply circuit of class II equipment to accessible surfaces) (according to IEC/ EN 60974-4)

Insulation LN-P readout:

• Range: 0.000 MΩ ÷ 0.500 MΩ / 0.501 MΩ ÷ 1.999 MΩ / 2.00 MΩ ÷ 19.99 MΩ
• Resolution: 0.001 MΩ / 0.001 MΩ / 0.01 MΩ
• Accuracy: ±(10 % of reading + 5 digits) / ±(5 % of reading + 3 digits)

Welding circuit leakage current; Primary leakage current (according to IEC/ EN 60974-4)

Welding circuit leakage current readout; Primary leakage current readout:

• Range: 0.00 mA ÷ 14.99 mA 
• Resolution: 0.01 mA 
• Accuracy: ±(5 % of reading + 5 digits)

No load voltage (acc. to IEC/ EN 60974-4)

No load voltage readout: (AC peak or DC peak)

• Range: 0.0 V ÷ 199.9 V 
• Resolution: 0.1 V 
• Accuracy: ±(5 % of reading + 5 digits)

No load voltage readout: (AC RMS)

• Range: 0.0 V ÷ 139.9 V 
• Resolution: 0.1 V 
• Accuracy: ±(5 % of reading + 5 digits)

• Polarity test Standard test (<60 VAC and DC)
• Polarity test Active (Mains supply voltage, over-current protection)

The Metrel A1422 comes with:

• Metrel A 1422 Three-Phase and Welding Equipment Adaptor
• Bag for accessories
• Measuring / Connection cable between Adapter and Instrument
• 3-phase mains cable 16 A male / 32 A female, 5-pin, 2 m
• RS232 cable
• Instruction manual, short instruction manual
• Calibration certificate