IEC 60695-2-20 UL 746C Hot Wire Ignition Tester for Electrical Components

IEC 60695-2-20 UL 746C Hot Wire Ignition Tester for Electrical Components

Product information

Hot wire ignition test apparatus conforms to IEC60695-2-20-1995, ASTMD3874-1997, IEC60950-1999, UL746A-2000, UL746C-2000, IEC829-1998.

This chamber has a black background inside, with ventilation and lighting device, the time and power can be displayed on the touch screen, with large observation window for observation and recording conveniently, high quality components ensure the stability and accuracy of the testing.

Working Principle

Hot wire ignition test use specific size (0.5mm length 250mm) specific material (Ni80/Cr20) electric wire, after pre-annealing required heating power (0.26W/mm) and the specified time (8s ~ 12s), winding 5 full circle on the sample according to a certain in winding tension (5.4N) and winding pitch (6.35mm), test the specimen wounded by electric wire to 120s under the provisions of the heating power (0.26W/mm), assessment the specimen's fire risk according to the test result whether it is ignited and the ignition time.

Key Features

• Supports testing according to IEC 60695-2-20 and ASTM D3874
• Applicable to electrical and electronic product safety evaluation
• PLC control with 7-inch touchscreen display
• Digital adjustment and display of heating power
• Presettable annealing and test duration
• Specified Ni80/Cr20 resistance wire for standardized testing
• Controlled winding tension and winding pitch
• Large observation window for convenient visual monitoring
• Internal lighting and ventilation system
• Black test chamber background for improved flame/ignition observation
• Compact laboratory design with reliable electrical components

Technical parameters

Control and Operation

The integrated PLC control system and 7-inch touchscreen provide a straightforward interface for setting and monitoring the test parameters.

Operators can preset the annealing time, test duration and heating power, while the touchscreen provides real-time parameter display during operation.

The digital control system reduces manual adjustment and helps maintain consistent test conditions between specimens, making the equipment suitable for repeatable laboratory fire safety testing.

Why Choose This Hot Wire Ignition Tester?

Accurate Heating Control

The heating power can be digitally adjusted to achieve the specified 0.26 W/mm test condition, supporting consistent test procedures.

Controlled Specimen Preparation

The dedicated winding arrangement helps maintain the specified 5.4 N winding tension and 6.35 mm winding pitch.

Easy Touchscreen Operation

PLC control and a 7-inch touchscreen make parameter setting and test monitoring more convenient for laboratory operators.

Improved Test Observation

The black chamber interior, lighting system and large observation window provide a clearer view of ignition behavior.

Flexible Test Settings

Both annealing and test durations can be preset according to the testing procedure, providing greater flexibility for laboratory applications.

Broad Material Testing Applications

The equipment can be used for plastic, polymeric and electrical insulating material fire-risk evaluation, making it suitable for electrical safety laboratories, manufacturers and third-party testing facilities.