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EL9570 | Buffer capacitor terminal

The EL9570 Bus Terminal contains high-performance capacitors for stabilising supply voltages. The EL9570 can be used in conjunction with the EL7041 stepper motor terminal and the EL7342 DC motor terminal. Low internal resistance and high-pulsed current capability enable good buffering in parallel with a power supply unit. Return currents are stored, particularly in the context of drive applications, thereby preventing overvoltages. If the regenerative energy exceeds the capacity of the capacitors, energy can be dissipated via an external ballast resistor.

Technical data EL9570 | ES9570
Technology buffer capacitor
Nominal voltage 50 V
Capacity 500 µF
Ripple current 10 A in continuous operation
Internal resistance ≤ 10 mΩ
Surge voltage protection > 56 V
Recommended ballast resistor 10 Ω, typ. 10 W
Overvoltage control range ±2 V
Ballast resistor clock rate load-dependent, 2-point control
Electrical isolation 1,500 V (terminal/E-bus)
Weight approx. 90 g
Operating/storage temperature 0…+55 °C/-25…+85 °C
Relative humidity 95 %, no condensation
Vibration/shock resistance conforms to EN 60068-2-6/EN 60068-2-27/29
EMC immunity/emission conforms to EN 61000-6-2/EN 61000-6-4
Protect. class/installation pos. IP 20/variable
Pluggable wiring for all ESxxxx terminals
Approvals CE, Ex