The EL9570 buffer capacitor terminal contains high-power capacitors for the stabilization of supply voltages. The EL9570 can be used in conjunction with the EL7041 stepper motor terminal, the EL7342 DC motor terminal and the EL7201 and EL7211 servomotor terminals. Low internal resistance and high pulse current capability enable good buffering in parallel with a power supply unit. Reverse currents are stored, particularly in the context of drive applications, thereby preventing overvoltages. If the recovery energy exceeds the capacity of the capacitors, energy can be dissipated via an external brake resistor.
Product status:
regular delivery (not recommended for new projects) | recommended alternative: EL9576
Product information
Technical data | EL9570 |
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Technology | buffer capacitor |
Nominal voltage | 48 V DC |
Capacity | 500 µF |
Max. ripple current | 10 A @ 100 kHz |
Internal resistance | < 20 mΩ @ 100 kHz |
Chopper voltage | > 56 V |
Recommended braking resistor | see documentation |
Overvoltage control range | ±2 V |
Braking resistor clock rate | load-dependent, 2-point control |
Electrical isolation | 1500 V (E-bus/field potential) |
Special features | for new projects: please use EL9576 |
Weight | approx. 90 g |
Operating/storage temperature | 0…+55°C/-25…+85°C |
Relative humidity | 95%, no condensation |
EMC immunity/emission | conforms to EN 61000-6-2/EN 61000-6-4 |
Vibration/shock resistance | conforms to EN 60068-2-6/EN 60068-2-27 |
Pluggable wiring | for all ESxxxx terminals |
Protect. rating/installation pos. | IP20/variable |
Approvals/markings | CE, ATEX, IECEx |
Ex marking | ATEX: II 3 G Ex ec IIC T4 Gc IECEx: Ex ec IIC T4 Gc |
Housing data | EL-12-8pin | ES-12-8pin |
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Design form | compact terminal housing with signal LEDs | terminal housing with pluggable wiring level |
Material | polycarbonate | |
Dimensions (W x H x D) | 12 mm x 100 mm x 68 mm | |
Installation | on 35 mm DIN rail, conforming to EN 60715 with lock | |
Side by side mounting by means of | double slot and key connection | |
Marking | labeling of the BZxxx series | |
Wiring | solid conductor (s), flexible conductor (st) and ferrule (f): spring actuation by screwdriver | |
Connection cross-section | s*: 0.08…2.5 mm², st*: 0.08…2.5 mm², f*: 0.14…1.5 mm² | s*: 0.08…1.5 mm², st*: 0.08…1.5 mm², f*: 0.14…1.5 mm² |
Connection cross-section AWG | s*: AWG28…14, st*: AWG28…14, f*: AWG26…16 | s*: AWG28…16, st*: AWG28…16, f*: AWG26…16 |
Stripping length | 8…9 mm | 9…10 mm |
Current load power contacts | Imax: 10 A |
*s: solid wire; st: stranded wire; f: with ferrule
Ordering information | |
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EL9570 | Buffer capacitor terminal, 48 V, 500 µF |
ES9570 | Buffer capacitor terminal, 48 V, 500 µF, pluggable wiring |
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