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Phoenix Contact · Monitoring Relay
2903528 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 | 480 V (3~ 208 ... 480 V / 120 ... 277 V) |
| Power consumption | 10 VA ((1 W) at 400 V/50 Hz) |
| Frequency | 48 Hz ... 63 Hz |
| I/O and communication | |
| Response time | 0.1 s ... 10 s |
| Mechanical | |
| Weight | 73 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 | ||
|---|---|---|---|
| 2903528 (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 2903528 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 2903528 — 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 2903528; always cross-check the catalog number and hardware revision on the nameplate before placing an order.
For a discontinued unit, match function and electrical ratings rather than the label alone.
Q.Where can I find the tripping characteristic data for 2903528?
It is listed in the specification table for Phoenix Contact 2903528 as 8 mm. Confirm this figure against the unit currently in the panel.
Q.For 2903528, what does the specification table state about input voltage range?
The specification table lists input voltage range = 480 V (3~ 208 ... 480 V / 120 ... 277 V) for Phoenix Contact 2903528. Use the value as the reference when sourcing a current-production equivalent.
Q.Which value is published under rated impulse withstand Uimp for catalog number 2903528?
For 2903528, rated impulse withstand Uimp is given as 6 kV (IEC 60947-4-1). Check the revision of the installed unit if the catalog number has been superseded.
Q.Can the 2903528 replace the unit currently installed in my panel?
Compare catalog number 2903528 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.
Q.How do I confirm compatibility of 2903528 before ordering?
Match the catalog number 2903528 and the specification values listed above against the installed unit, then confirm the firmware or hardware revision where a revision-sensitive part is involved.
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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