Phoenix Contact · Monitoring Relay
2903525 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.
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Enclosure ratingIP20 (IEC 60529)
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Operating temperature-25...+60 °C (IEC 60068-2-1)
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Mounting35 mm DIN rail (IEC 60715)
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CertificationsCE, UL, cULus
Specifications
| 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 |
| Rated torque |
1 Nm ... 1 Nm |
| I/O and communication |
| Response time |
0.1 s ... 10 s |
| Mechanical |
| Weight |
82.1 g |
| Mounting |
35 mm DIN rail (IEC 60715) |
| Terminal type |
IP20 (Connection terminal blocks) |
| Terminal wire size |
0.5 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.
Model comparison in the same family
| Phoenix Contact Monitoring Relay variants |
| Catalog number |
Mounting |
|
2903525 (this page) |
35 mm DIN rail (IEC 60715) |
| 2903521 |
35 mm DIN rail (IEC 60715) |
| 2903523 |
35 mm DIN rail (IEC 60715) |
| 2903526 |
35 mm DIN rail (IEC 60715) |
Before selecting an alternative, confirm its dimensions, terminals and installation requirements in the manufacturer documentation.
Where it sits in the control system
The 2903525 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.
Selection notes for Phoenix Contact 2903525
Phoenix Contact 2903525 — 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 2903525; record the nameplate data of the unit being replaced before selecting an equivalent.
- Enclosure rating: IP20 (IEC 60529) — Match it to the existing panel and upstream protection.
- Terminal wire size: 0.5 mm² ... 2.5 mm² — Record it with the other nameplate data when sourcing a replacement.
- Terminal type: IP20 (Connection terminal blocks) — Confirm the revision of the installed unit before a like-for-like replacement.
- Tripping characteristic: 8 mm — Use it as the reference when cross-checking a current-production equivalent.
Cross-check the ratings above with the installed device before confirming the order.
Common questions about 2903525
Q.For 2903525, what does the specification table state about tripping characteristic?
The specification table lists tripping characteristic = 8 mm for Phoenix Contact 2903525. Compare it with the nameplate of the installed unit before ordering.
Q.Which value is published under terminal type for catalog number 2903525?
For 2903525, terminal type is given as IP20 (Connection terminal blocks). Confirm this figure against the unit currently in the panel.
Q.Before ordering 2903525, which power consumption entry should be checked?
The power consumption entry quoted above is 10 VA (1 W). Use the value as the reference when sourcing a current-production equivalent.
Q.What should I include in an enquiry for 2903525?
Send the full catalog number 2903525, the required quantity and a photo of the nameplate. Stock, lead time and the applicable compliance documents can then be confirmed for Phoenix Contact 2903525.
Q.How do I confirm compatibility of 2903525 before ordering?
Match the catalog number 2903525 and the specification values listed above against the installed unit, then confirm the firmware or hardware revision where a revision-sensitive part is involved.