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Phoenix Contact · Monitoring Relay
2903526 is a Phoenix Contact industrial component with Enclosure rating IP20 (IEC 60529); Operating temperature -25...+60 °C (IEC 60068-2-1); Mounting 35 mm DIN rail (IEC 60715). It is used in control panels, machine builds, spare-part replacements where the installed unit is matched to the original catalog number and a compact, documented part is required.
| Electrical | |
| Rated insulation voltage Ui | 690 V (IEC 60947-4-1) |
|---|---|
| Rated impulse withstand Uimp | 6 kV (IEC 60947-4-1) |
| Tripping characteristic | 8 mm |
| Input voltage range | ±30 % (3~ 400/230 V) |
| Power consumption | 10 VA (1 W) |
| Frequency | 48 Hz ... 63 Hz |
| I/O and communication | |
| Response time | 0.1 s ... 10 s |
| Mechanical | |
| Weight | 74 g |
| Mounting | 35 mm DIN rail (IEC 60715) |
| Terminal type | IP20 (Connection terminal blocks) |
| Terminal wire size | 0.14 mm² ... 2.5 mm² |
| Enclosure rating | IP20 (IEC 60529) |
| Environment and compliance | |
| Operating temperature | -25...+60 °C (IEC 60068-2-1) |
| Certifications | CE, UL, cULus |
| Humidity | 15 % ... 85 % |
| Degree of protection | IP40 (Housing) |
Values follow the Phoenix Contact Monitoring Relay specification for this catalog number; parameters not confirmed for this variant are omitted rather than estimated.
| Phoenix Contact Monitoring Relay variants | |||
| Catalog number | Mounting | ||
|---|---|---|---|
| 2903526 (this page) | 35 mm DIN rail (IEC 60715) | ||
| 2903521 | 35 mm DIN rail (IEC 60715) | ||
| 2903523 | 35 mm DIN rail (IEC 60715) | ||
| 2903525 | 35 mm DIN rail (IEC 60715) | ||
Before selecting an alternative, confirm its dimensions, terminals and installation requirements in the manufacturer documentation.
The 2903526 is the device-level element in a Phoenix Contact industrial component installation. It receives the field signals and control supply listed above — the rated supply — 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 control panels, machine builds, spare-part replacements, where the unit is matched to the original catalog number and the enclosure provides 35 mm DIN rail (IEC 60715) support. Record the catalog number and revision from the nameplate of the installed unit before specifying a like-for-like spare.
Phoenix Contact 2903526 — 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 2903526; record the nameplate data of the unit being replaced before selecting an equivalent.
For a discontinued unit, match function and electrical ratings rather than the label alone.
Q.Where can I find the rated insulation voltage Ui data for 2903526?
It is listed in the specification table for Phoenix Contact 2903526 as 690 V (IEC 60947-4-1). Confirm this figure against the unit currently in the panel.
Q.For 2903526, what does the specification table state about mounting?
The specification table lists mounting = 35 mm DIN rail (IEC 60715) for Phoenix Contact 2903526. Use the value as the reference when sourcing a current-production equivalent.
Q.Which value is published under degree of protection for catalog number 2903526?
For 2903526, degree of protection is given as IP40 (Housing). Check the revision of the installed unit if the catalog number has been superseded.
Q.How do I confirm compatibility of 2903526 before ordering?
Match the catalog number 2903526 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.What should I include in an enquiry for 2903526?
Send the full catalog number 2903526, the required quantity and a photo of the nameplate. Stock, lead time and the applicable compliance documents can then be confirmed for Phoenix Contact 2903526.
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.
Express (DHL Express / FedEx International): upgraded expedited delivery in 2–4 business days. The Express surcharge is calculated at checkout based on destination and order weight.
Non-Stock / On-Order items ship on request: dispatch time is confirmed before your order — see our Shipping Policy. Shipping charges and available services are displayed at checkout. See the Shipping Policy for details.
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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