Approval tests and special tests for connectors and electronics housings High quality with local or industry-specific standards and certifications in test batch E
Tested quality at Phoenix Contact also means that our PCB terminal blocks, connectors, and housings may also have to comply with special standards and approvals in specific industries and countries.
###As the final milestone of laboratory tests, the spectrum of test batch E includes, among other tests:
- Solderability test
- Bend value
- Stress-corrosion cracking
- Freedom from whiskers
- Inflammability classification
- Glow-wire test
- RoHS conformity
- Industry and country-specific approvals
- Corrosion tests: Salt-spray test, Kesternich test (SO2)
- Condensation climate, flowing gas mix
- Climate tests: Heat, cold, humidity, temperature shock
Heat cycling test result curves
Heat cycling test in accordance with UL 1059
Through a cyclical overload test, the service life of an electrical connection is also verified under extreme electrical loads. As a requirement in this process, 1.5 times the rated current is intermittently charged at a time interval of 210 minutes current flow rate and 30 minutes cool-down over 14 days.
PCB terminal blocks for use in potentially explosive areas
Explosion protection in accordance with IEC 60079
For process engineering, Phoenix Contact also offers PCB terminal blocks for use in potentially explosive areas. The protection principle of increased safety “e” (IEC/EN 60079-7) is generally based on increased design measures. The most important considerations for connecting points are:
- Air clearances and creepage distances
- Protection against loosening on its own and impermissible damage to the conductor
- The clamping pressure must not be transmitted across insulating parts.
- Terminal points for connecting multi-stranded conductors must be equipped with an elastic intermediate element.
Whisker test in the laboratory
Whisker test in accordance with DIN IEC 60068‑2‑82 and/or JEDEC JESD201
Needle-like mono-crystals are referred to as whiskers. Under poor conditions, these can grow out of a tin-plated surface and, in some circumstances, cause malfunctions in electronic circuits. For many years, Phoenix Contact has used its own high in-house standards regarding the application of intermediate layers, electrolyte parameters, etc. on all its tin-plated surfaces so that the formation of whiskers has not been shown to occur as described in the standards. This fact is confirmed on a continuous basis through detailed testing.
The wetting test makes device connection technology easy to solder
Solderability test in accordance with IEC 68‑2‑54
A wetting test is used to assess and qualify the soldering properties of surface systems. This test ensures a constantly high quality of the soldering metals. PCB terminal blocks and PCB connectors from Phoenix Contact are also usually readily able to be soldered even under normal storage of three years, and they are also qualified for lead-free soldering processes.