MI 3360 25A OmegaGT XA Featured

PAT testers

New series of OmegaGT XA brings 4 models of the instrument, intended for professional use in the most demanding applications. All of them support user accounts, which means that one device can be used by several electricians. Model versions cover the following fields of testing: portable appliances, welding equipment, medical devices and professional testing of PRCD devices. All instruments have an advanced built-in user interface that enables the execution of pre-defined and user-created AUTOSEQUENCE®s. Large memory capacity (8 GB microSD card) enables the user long term saving and archiving of data. All the instruments are specially designed for long-term testing, since their memory structure enables simple searching through the archive of devices and quick re-execution of (periodic) tests. Great emphasis was put on support for peripheral devices such as printers and barcode or QR code scanners and RFID readers (in Bluetooth and wired versions). On top of that, all instrument versions are supported by our Metrel ES Manager PC software.


Standards applied

Building LV Installation

  • IEC/EN 61557 Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - series
  • IEC/EN 61557 Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - relevant parts
  • AS / NZ 3017 Electrical installations – Verification guidelines

Portable appliances safety

  • PAT Competences: Portable Appliances Safety Testing
  • AWE Competences: Arc Welding Equipment Safety Testing
  • EN 50699 Recurrent Test of Electrical Equipment
  • EN 50678 General procedure for verifying the effectiveness of the protective measures of electrical equipment after repair
  • AS / NZ 3760 In-service safety inspection and testing of electrical equipment
  • VDE 0701 Inspection after repair, modification of electrical appliances - periodic
  • VDE 0702 Inspection on electrical appliances - general requirements for electrical safety
  • NEN 3140 Guidelines for safe working practices
  • IEC/EN 60974 Arc welding equipment series
  • IEC/EN 60974-4 Arc welding equipment - Part 4: Periodic inspection and testing
  • IET COP 5th Ed., In-service Inspection and Testing of Electrical Equipment

Mobile Units Electrical Safety

  • eMOB Competences: Electrical LV Installations in Mobile Units Safety
  • IEC/EN/HD 60364-7-717 Low-voltage electrical installations: Requirements for special installations or locations – Supplies for Electrical Vehicles

Medical electrical equipment

  • MEDe Competences: Medical Electrical Equipment Safety
  • IEC/EN 62353 Medical electrical equipment - Recurrent test and test after repair of medical electrical equipment
  • VDE 0751-1 (IEC/EN 62353) Medical electrical equipment - Recurrent test and test after repair of medical electrical equipment


Measuring functions

  • Visual inspections;
  • Fuse test;
  • Continuity / Protective earth resistance 200 mA;
  • Continuity / Protective earth resistance 10 A, 25 A (25 A, M, F, models only);
  • Insulation Resistance (Riso, Riso-S);
  • Sub-Leakage Current, Substitute Leakage Current - S;
  • Differential Leakage current;
  • PE leakage current;
  • Touch leakage current;
  • Insulation resistance, IEC/EN 62353;
  • Touch leakage current, IEC/EN 62353;
  • Equipment leakage (direct, differential, alternative) IEC/EN 62353;
  • Applied part leakage (direct, alternative), IEC/EN 62353;
  • Insulation resistance (optional A 1422), IEC/EN 60974-4;
  • Welding circuit leakage (optional A 1422), IEC/EN 60974-4;
  • Primary leakage (optional A 1422), IEC/EN 60974-4;
  • No-load voltage (optional A 1422), IEC/EN 60974-4;
  • Power (P, S, Q, PF, THDu, THDi, CosØ, I, U,);
  • PRCD test, (2-pole, 3-pole, K/Di (varistor), S (3-pole));
  • PRCD PE probe test, PRCD open conductor test, PE conductor (PRCD) test;
  • RCD test, (type A, AC, B, B+, F);
  • Flash test, (1500 V, 3000 V), (F model only);
  • Polarity / Active polarity test;
  • Clamp current (with optional A 1579).

Key features

  • Touch screen: high resolution colour touch screen, 4.3” TFT.
  • Double manipulation: keyboard and touch screen enable the user to control the instrument in any manner they like.
  • Pre-defined AUTOSEQUENCE®s: enable the user simple and quick execution of test sequence for the chosen device.
  • Read the code and test: QR and barcode system of labelling in combination with AUTOSEQUENCE®s enables the user quick and simple testing of electrical devices.
  • Testing groups: the instruments have built-in filters in accordance with their area of application, which enables the user simple choice of needed test sequences.
  • Support for PRCD testing: support for all types of PRCDs, including 2-pole, 3-pole, K/Di (varistor), S (3 pole) and testing with the PE probe.
  • Support for RCD testing: all instruments support testing of A, AC, B, B+ and F RCDs.
  • Fuse testing: the instrument has a special, integrated testing module for quick testing of all types of fuses.
  • Hard-wired devices: the instruments have integrated additional test terminals that enable the user simple testing of hard-wired devices.
  • High-voltage testing (only MI 3360 F): the instrument enables insulation resistance measurement that has to be performed after repairs or maintenance of electrical devices.
  • Testing of medical devices (only MI 3360 M): the instrument enables testing of medical devices in accordance with IEC/EN 62353.
  • Testing of welding equipment (only in combination with A 1422): all models of OmegaPAT XA support testing of welding equipment in accordance with IEC/EN 60974-4.
  • Large memory: support for microSD memory cards, 8 GB card already integrated in the instrument, although that can be expanded to 32 GB.
  • PC SW Metrel ES Manager: enables creation of test structures, user-defined AUTOSEQUENCE®s, professional test reports and data transfer for archiving.
  • aMESM Android SW: enables QR code scanning, and uploading of pre-prepared user-defined AUTOSEQUENCE®s.

Technical data

  • Dimensions (w x h x l): 310 x 130 x 250 mm
  • Weight (with batteries, without accessories): 6.1 kg


Surgery rooms or operating theatres

  • Medical devices

Preventative maintenance

  • Safety of portable appliances


  • Appliances troubleshooting



Type File Language Version Release Notes Type Size View Download
Datasheet MI 3360 OmegaGT XA en 2021 24.02.2021 Single leaflets pdf 3.49 MB
Datasheet MI 3360 OmegaGT XA en 2019 30.08.2021 Main features pdf 6.44 MB
Datasheet MI 3360 OmegaGT XA en 2019 30.08.2021 Technical info pdf 8.41 MB
Datasheet Ion SDK and Black-Box protocol en 2020 07.10.2020 Brochure pdf 835.94 KB Login
Manual MI 3360 OmegaPAT XA en 1.8.10 24.11.2020 20 752 658 pdf 5.86 MB Login
DoC EU Declaration of Conformity Multi-Language 10.08.2021 QR code External link Unknown
Guide MI 3360 OmegaGT XA en 1.1.1 05.11.2020 20 753 132 pdf 4.72 MB Login
PC Software SW 1201 Metrel Electrical Safety Manager (MESM) Multi-Language 02.07.2021 Readme zip 307.51 MB Login
Android SW 1204 RISK Calculator Android en 04.01.2021 QR code External link Unknown
Auto Sequences Metrel AUTO SEQUENCEs en 2017 05.10.2017 Mi 3360 PAT-GT zip 214.47 KB Login