Beckhoff
EL2788
Beckhoff EL2788
EL2788 | 8-channel digital output terminal 30 V AC/DC, 2 A, solid state
Description
The digital EL2788 EtherCAT Terminal provides eight switches that can be used like a relay contact for AC/DC voltages. The electronic switch is realised through high-performance MOSFET transistors with low switch-on resistance. The switch itself is not short-circuit proof, but due to its high pulse current capability it can cope with current until an external fuse triggers a switch-off. Wear resistance increases the availability of the application. Resistive and light inductive loads can be switched up to a rated voltage of 30 V AC/DC, completely resistive loads also up to a rated voltage of 48 V DC. High peak voltages and electromagnetic interference pulses are prevented. The power contacts are connected. The outputs of the EL2788 are supplied via the power contacts.
Technical parameters
| Connection technology: | 2-wire |
| Number of outputs: | 8 x make contacts |
| Nominal voltage: | 0…30 V AC/DC (ohmic load only: 0…48 V DC) |
| Distributed clocks: | – |
| Max. output current: | 2 A per channel (∑ 10 A) |
| Short-circuit current: | not short-circuit proof, see peak current |
| Reverse voltage protection: | – |
| Switching times: | TON: typ. 1.8 ms, TOFF: typ. 30 ms |
| Breakdown voltage: | 80 V |
| Peak current: | 5 A (100 ms), < 50 A (10 ms) |
| Isolation voltage (channel/channel): | – |
| Current consumption E-bus: | typ. 140 mA |
| Electrical isolation: | 500 V (E-bus/field potential) |
| Switching on speed: | typ. 1.8 ms, max. 5 ms |
| Switching off speed: | typ. 30 ms, max. 50 ms |
| On-resistance: | typ. 0.03 Ω |
| Special features: | substitute for relay contacts, connected with power contacts |
| Operating/storage temperature: | -25…+60 °C/-40…+85 °C |
| Relative humidity: | 95 %, no condensation |
| Vibration/shock resistance: | conforms to EN 60068-2-6/EN 60068-2-27 |
| EMC immunity/emission: | conforms to EN 61000-6-2/EN 61000-6-4 |
| Protect. class/installation pos.: | IP 20/variable |
| Approvals/markings: | CE, UL |
Logistic parameters
| ECCN: | |
| Country of Origin: | |
| EAN: | |
| Weight: | 0.00 kg |
| Length: | 0.00 m |
| Width: | 0.00 m |
| Height: | 0.00 m |