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IFM · Inductive proximity sensor
II503A is an IFM circuit breaker with Breaking capacity Icu/Ics yes; Supply voltage 10...30 V DC (IEC 60947-5-2); Enclosure rating IP67 (IEC 60529). 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.
| Electrical | |
| Breaking capacity Icu/Ics | yes |
|---|---|
| Supply voltage | 10...30 V DC (IEC 60947-5-2) |
| Frequency | 250 Hz |
| Overload capacity | yes |
| Rated torque | 80 Nm |
| I/O and communication | |
| Response time | <= 1500 Hz switching frequency |
| Mechanical | |
| Dimensions (H x W x D) | M30 x 1.5 / L = 65 mm |
| Weight | 139.771 g |
| Mounting | non-flush mountable |
| Enclosure rating | IP67 (IEC 60529) |
| Environment and compliance | |
| Operating temperature | -25...+70 °C (IEC 60068-2-1) |
| Certifications | CE, cULus |
Values follow the IFM Inductive proximity sensor specification for this catalog number; parameters not confirmed for this variant are omitted rather than estimated.
| IFM Inductive proximity sensor variants | |||
| Catalog number | Breaking capacity Icu/Ics | ||
|---|---|---|---|
| II503A (this page) | yes | ||
| II502A | yes | ||
| II5162 | yes | ||
| II5256 | yes | ||
Before selecting an alternative, confirm its dimensions, terminals and installation requirements in the manufacturer documentation.
The II503A is the device-level element in an IFM circuit breaker installation. It receives the field signals and control supply listed above — 10...30 V DC (IEC 60947-5-2) — and switches or conditions the load within the the rated 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 non-flush mountable support. Record the catalog number and revision from the nameplate of the installed unit before specifying a like-for-like spare.
IFM II503A — Sensor or detector for object detection, distance measurement and status feedback on production lines. The figures below are taken from the specification table on this page for catalog number II503A; size the surrounding wiring and upstream protection to these published ratings rather than to a generic assumption.
Cross-check the ratings above with the installed device before confirming the order.
Q.Which value is published under response time for catalog number II503A?
For II503A, response time is given as <= 1500 Hz switching frequency. Check the revision of the installed unit if the catalog number has been superseded.
Q.Before ordering II503A, which dimensions (H x W x D) entry should be checked?
The dimensions (H x W x D) entry quoted above is M30 x 1.5 / L = 65 mm. Compare it with the nameplate of the installed unit before ordering.
Q.Where can I find the breaking capacity Icu/Ics data for II503A?
It is listed in the specification table for IFM II503A as yes. Confirm this figure against the unit currently in the panel.
Q.How do I confirm compatibility of II503A before ordering?
Match the catalog number II503A and the specification values listed above against the installed unit, then confirm the firmware or hardware revision where a revision-sensitive part is involved.
Q.Can the II503A replace the unit currently installed in my panel?
Compare catalog number II503A and the ratings above with the nameplate of the installed device. A current-production equivalent is selected by function and electrical rating, not by the label alone.
Standard (US & Canada, tracked courier): delivered in 5–8 business days. In-stock items are processed within 2–4 business days. USD 25 flat rate on orders under $500.00; free on orders of $500.00 and above.
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Every product is covered by a 12-month seller warranty provided by SHLY-PLC, effective from the date of delivery, against defects in materials and workmanship under normal use.
This warranty does not cover damage from misuse, improper installation, power surges, neglect, unauthorized repair, or normal wear and tear. See our Return Policy for warranty-claim instructions.
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