GPT-12004: 200 VA Electrical Safety Analyzer (AC/DC/IR/GB + Continuity)

The GW Instek GPT-12004 is the top-of-line model in the GPT-12000 Intelligent Electrical Safety Analyzer series, and the most-asked-for safety analyzer on Indian production benches when the test plan covers the full AC withstand + DC withstand + insulation resistance + ground bond + continuity envelope on a single unit. It is the model Indian appliance OEMs in Mumbai and Delhi NCR, lighting and LED-driver manufacturers in Chennai and Hyderabad, medical-device assemblers in Bengaluru, and power-electronics test labs in Pune specify when their production line needs to certify against IEC, UL, EN, and Indian BIS safety regimes in one pass.

GSAS Micro Systems supplies the GPT-12004 in India with on-site safety-test procedure setup, production-line integration, fixture sourcing, and periodic calibration services.

What’s on the GPT-12004: the full test envelope on one unit

The GPT-12000 series is split into four models by which tests they run. GPT-12004 is the top model, every test type the series supports, on a single unit, with rear-panel output for fixtured production deployment:

Test	GPT-12001	GPT-12002	GPT-12003	GPT-12004
AC withstand voltage	✅	✅	✅	✅
DC withstand voltage	-	✅	✅	✅
Insulation resistance (IR)	-	-	✅	✅
Ground bond (GB)	-	-	-	✅
Continuity	-	-	-	✅
Rear-panel output	-	-	-	✅

If your test plan needs ground bond or continuity, typical for appliances under IEC 60335, lighting fixtures under IEC 60598, medical electrical equipment under IEC 60601, or any product entering the EU under the Low Voltage Directive, GPT-12004 is the model. The lower three models (GPT-12001 / -12002 / -12003) cover a narrower test envelope and are appropriate when a smaller subset of tests is sufficient.

Key features

The features below are common to the GPT-12000 series per GW Instek’s GPT-12000 product page and apply to the GPT-12004 specifically:

Capability	What it does on the production line
200 VA AC test capacity	Headroom for testing high-current AC inrush DUTs at typical 1.5 kV / 3 kV / 5 kV hipot points without throttling.
7-inch colour TFT LCD	Test parameter visualisation and result review at the operator station, large enough that line operators can read a fail readout from a metre away.
AC RMS current measurement	True-RMS reading on AC leakage current, not peak or average, required for IEC withstand-voltage compliance.
Zero-crossing turn-on	Energises the test voltage at the AC zero-crossing to suppress switch-on transients that would otherwise look like leakage spikes and cause false fails.
Controllable ramp up and ramp down	Programmable ramp-up and ramp-down rates protect capacitive DUTs (DC link capacitors, EMI filter capacitors, large-input filter capacitors) from inrush damage during hipot tests.
Capacitive load capability up to 47 µF	Handles DUTs with large input filter capacitors, modern switching power supplies, LED drivers, and motor-drive inverters, without tripping prematurely on the rising edge of the ramp.
Manual and Auto modes	Manual for engineering bring-up and fixture qualification; Auto for production line operation with stored test sequences.
Sweep function	Characterise breakdown behaviour of a DUT class during prototype qualification, useful for setting production hipot points with a safety margin.
Statistics and analysis	Built-in pass/fail counting and statistics view for production yield tracking on the unit itself, without a connected PC.
Internal storage + USB flash	Save test setups and result logs to internal memory or removable USB for archiving and traceability.
Barcode reader input	Tie the test result to the DUT serial number at scan-time for full traceability without paper logs.
Setting data import/export	Move test setups between units across multiple production lines or between engineering and production.
Rear-panel output	Mount the unit into a production test fixture with rear connection; front panel stays clean for the operator interface.
RS-232C / USB host + device / Signal I/O	PC connectivity, USB stick storage, and PLC-style signal handshaking for full production-line automation.
Optional GPIB or LAN interface	LAN for shop-floor MES integration; GPIB for legacy ATE racks.
Universal power input	100 V – 240 V AC line input; plugs into any Indian production-line power configuration.
IEC 61010-2-034 compliance	The GPT-12000 series itself is built to the safety standard required for hipot test equipment, important for Indian factory environment qualification.

Indian production-line use cases

Where the GPT-12004 shows up on the floor:

• Indian appliance OEMs (washing machines, refrigerators, air conditioners), IEC 60335 + BIS compliance routine; AC hipot + IR + ground bond as a three-test sequence on every unit.
• LED and lighting driver manufacturers: IEC 60598 + UL 8750 hipot + IR + ground bond at production end-of-line.
• Medical electrical equipment assemblers: IEC 60601-1 dielectric strength + earth continuity routine tests; the GPT-12004’s continuity test fits the IEC 60601-1 earth-bond requirement directly.
• Switch-mode power supply and DC-DC converter production: programmable ramp + 47 µF capacitive load handles the input filter cap charge without tripping false fails.
• Motor-drive and inverter assemblers: high-capacitance DC-link DUTs benefit from the ramp control; the 200 VA AC capacity handles the inrush.
• Two-wheeler / EV ECU and battery management test stations: DC hipot + IR routine on traction-voltage inverter and BMS assemblies.
• Indian defence and aerospace electronic assemblies: qualified hipot routines per MIL-style internal standards run from stored test setups for traceability.

Watch the GPT-12000 / GPT-15000 Intelligent Safety Analyzer introduction

GW Instek’s product introduction video covering the GPT-12000 series (the GPT-12004 is the top model in this series) and its sibling GPT-15000 500 VA analyzer:

For the higher 500 VA capacity variant, see GPT-15000.

How GPT-12004 compares to the rest of the GW Instek safety-tester catalogue

GW Instek’s electrical safety analyzer line covers the production-test spectrum from entry-level single-test boxes to multi-channel scanners:

• GPT-15000: 500 VA AC capacity, the higher-power sibling for medical-grade and large-appliance test stations. Top model in the broader GW Instek electrical safety analyzer family.
• GPT-9800 / GPT-9900 series: 100 VA mid-range, four-in-one (AC/DC/IR/GB) for cost-sensitive production lines.
• GPT-9600 series: AC withstand and IR for the basic compliance use case.
• GPT-9500 series: multi-channel hipot for parallel-line production.
• GCT-9040: dedicated ground-bond tester for production lines where ground continuity is the only test required.
• GLC-10000 / GLC-9000: leakage current testers for medical and general-purpose lines, often paired with the GPT-series withstand/IR units.
• GSB-01 / 02 scanner box: multi-channel scanner for fanning the GPT-12004’s hipot output across multiple DUTs in a single test cycle.

For full-line specs and configuration, see the GW Instek GPT-12000 product page and the downloadable specification PDF. For the full Indian safety-test workflow, from instrument selection through fixture design, calibration, and operator training, talk to GSAS.

Why Indian production teams buy the GPT-12004 from GSAS

• Local stock and immediate quotation: INR pricing under GST. GeM, SAP Ariba, Coupa, and TReDS supported.
• Application engineering: production-line test plan setup, fixture and scanner-box selection, ramp/voltage profiling against your DUT class.
• Calibration and traceability: periodic on-site calibration with NABL-traceable certificates, scheduled to your QMS audit cycle.
• Training: operator and engineering training on stored test setups, statistics interpretation, and barcode-driven traceability.
• Country coverage: engineering support across Bengaluru, Hyderabad, Chennai, Pune, Mumbai, Delhi NCR, and Visakhapatnam.

For pricing on the GPT-12004 with optional scanner box, fixture, and calibration package, request a quote from GSAS or browse on the GSAS store.

GSAS Micro Systems is GW Instek’s authorized engineering partner in India for the full instrumentation, power, and safety-compliance test range, explore the GW Instek partner page for the complete product family.