For testing purposes, a terminal block is mounted on the support and wired to a conductor with the rated cross section. This can take up to several tenths of a second. Quality features Short-time current resistance IEC 6/-2 Terminal blocks must, in practice, also be capable of resisting short-circuit currents until the relevant safety equipment cuts off the current without sustaining any damage. 500 10 60 578 Terminal blocks Quality features Absorption of tensile force at a 6 mm² screw terminal block In the case of the TB 240 I high-current terminal block, a test current of 28,800 A is passed through the terminal block for one second without loss of quality. Conductor cross section Tractive force 0.2 4 240 AWG / kcmil 24. The TB screw terminal blocks withstand tensile forces up to 100% above the required minimum values. The conductor must be held without causing damage. The tensile force exerts stress on the conductor at the terminal point. Performing these two tests directly one after the other intensifies the requirements. This test is performed after the flexion test. To test the tensile load capacity of a terminal point, the terminal point must withstand a given tensile force based on the cross section for over 60 seconds. Correctly wired terminal blocks must therefore offer a high degree of mechanical safety. Quality features Conductor pull-out test IEC 6/-2 In practice, tensile forces can affect the terminal point during wiring or operation.
#Elcad halgons full#
Test sequence for terminal blocks in accordance with IEC 6/2: – Connection capacity – Mechanical strength – Bending test – flexion test – Conductor pull-out test – Modular terminal block fixed securely – Air clearances and creepage distances – Impulse withstand voltage test – Voltage drop test – Temperature-rise test – Short-time current resistance – Dielectric test – Aging test – Needle flame test 6 PHOENIX CONTACT For further information and full technical data, visit /products This high quality is demonstrated by recognized tests which are documented in national and international standards. High-quality physical properties and advanced industrial standards are evidenced by connections with long-term stability. TB terminal blocks represent compact, high-performance electrical connections. This is not tested subsequently on finished products, but is ensured responsibly during every step of production. Terminal blocks Quality features Quality features Quality tests Reliable connections - that is our everyday motto. Conductor pull-out test: IEC 6/-2 For further information and full technical data, visit /products PHOENIX CONTACT 5 TB terminal blocks can accommodate conductors up to a cross section of 240 mm². Salt spray: IEC 6/-52 Conductors with a larger cross section are used for the connection between SCBs and inverters due to the higher currents and longer cable lengths. Thanks to the use of modern materials, the TB terminal blocks are also ideal for use in challenging environments, such as atmospheres containing salt or at temperatures as low as -60☌. Short-time withstand current: IEC 6/-2 Signals can be transmitted safely in a confined space with the compact double- level terminal blocks. Temporary high currents, e.g., when starting up electric motors, present no problem for the TB terminal blocks. Vibration test: IEC 6 Machine building Signal technology Photovoltaics The amount of wiring effort and space required when connecting sensors and actuators can be reduced considerably with the TBIO. Touch proofness: IEC 60529 / DIN EN 50274 When it comes to the modular structure of wind turbine generators, the TB terminal blocks with connector help prevent wiring errors and save time.
#Elcad halgons series#
Corrosion test: DIN 50018 The TB series is ideal for the energy supply sector with its individual and easily configurable measuring transducer sets for all current transformer and voltage transducer applications. The terminal blocks with disconnect zone, which are the same shape, also allow component connectors or fuse plugs to be used to protect the signals. Quality features Infrastructure Power engineering Wind power Terminal blocks Quality features Measuring devices can be looped in quickly and easily with knife disconnect terminal blocks to check the system during startup and maintenance.
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