Beckhoff EL5151 Encoder Interface

Beckhoff · EtherCAT Terminal

EL5151 is a Beckhoff circuit breaker with Tripping characteristic 8…9 mm; Rated operational voltage 24 V DC (-15%/+20%); Supply voltage 10...30 V DC. It is used in distribution boards, motor protection circuits, panel feeders where the installed unit is matched to the original catalog number and a compact, documented part is required.

• Tripping characteristic8…9 mm
• Rated operational voltage24 V DC (-15%/+20%)
• Supply voltage10...30 V DC
• Enclosure ratingIP65 / IP67 (IEC 60529)

Specifications

Values follow the Beckhoff EtherCAT Terminal specification for this catalog number; parameters not confirmed for this variant are omitted rather than estimated.

Model comparison in the same family

Before selecting an alternative, confirm its dimensions, terminals and installation requirements in the manufacturer documentation.

Where it sits in the control system

The EL5151 is the device-level element in a Beckhoff circuit breaker installation. It receives the field signals and control supply listed above — 10...30 V DC — and switches or conditions the load within the 24 V DC (-15%/+20%) ratings shown in the Specifications table. Wiring and protective devices are sized to those same numbers, not to a generic assumption.

Typical installations place it in distribution boards, motor protection circuits, panel feeders, where the unit is matched to the original catalog number and the enclosure provides double slot and key connection support. Record the catalog number and revision from the nameplate of the installed unit before specifying a like-for-like spare.

Selection notes for Beckhoff EL5151

Beckhoff EL5151 — Industrial automation component supplied as a like-for-like replacement, selected by catalog number and published ratings. The figures below are taken from the specification table on this page for catalog number EL5151; size the surrounding wiring and upstream protection to these published ratings rather than to a generic assumption.

• Rated operational voltage: 24 V DC (-15%/+20%) — Use it as the reference when cross-checking a current-production equivalent.
• Frequency: 400,000 increments/s (with 4-fold evaluation), corresponding to 100 kHz — Verify it in the project documentation before confirming the order.
• Humidity: 95%, no condensation — Check this value against the nameplate of the installed unit before ordering.
• Tripping characteristic: 8…9 mm — Match it to the existing panel and upstream protection.

Cross-check the ratings above with the installed device before confirming the order.

Common questions about EL5151