Allen-Bradley · Terminal Block
1492-LG3Q is an Allen-Bradley terminal block with Rated current Ie up to 41 A (IEC 60947-7-1); Rated operational voltage 800 V (IEC 60947-7-1); Enclosure rating IP20 (IEC 60529). 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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Rated current Ieup to 41 A (IEC 60947-7-1)
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Rated operational voltage800 V (IEC 60947-7-1)
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Enclosure ratingIP20 (IEC 60529)
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Operating temperature0...+55 °C (IEC 60068-2-1)
Specifications
| Electrical |
| Rated current Ie |
up to 41 A (IEC 60947-7-1) |
| Rated operational voltage |
800 V (IEC 60947-7-1) |
| Mechanical |
| Mounting |
DIN rail / panel |
| Enclosure rating |
IP20 (IEC 60529) |
| Environment and compliance |
| Operating temperature |
0...+55 °C (IEC 60068-2-1) |
| Certifications |
CE, UL, cULus |
Values follow the Allen-Bradley Terminal Block specification for this catalog number; parameters not confirmed for this variant are omitted rather than estimated.
Model comparison in the same family
| Allen-Bradley Terminal Block variants |
| Catalog number |
Rated current Ie |
Rated operational voltage |
Mounting |
|
1492-LG3Q (this page) |
up to 41 A (IEC 60947-7-1) |
800 V (IEC 60947-7-1) |
DIN rail / panel |
| 1492-LG35 |
up to 41 A (IEC 60947-7-1) |
800 V (IEC 60947-7-1) |
DIN rail / panel |
| 1492-LG3T |
up to 41 A (IEC 60947-7-1) |
800 V (IEC 60947-7-1) |
DIN rail / panel |
| 1492-LG4 |
up to 41 A (IEC 60947-7-1) |
800 V (IEC 60947-7-1) |
DIN rail / panel |
Before selecting an alternative, confirm its dimensions, terminals and installation requirements in the manufacturer documentation.
Where it sits in the control system
The 1492-LG3Q is the device-level element in an Allen-Bradley terminal block installation. It receives the field signals and control supply listed above — 800 V (IEC 60947-7-1) — and switches or conditions the load within the up to 41 A (IEC 60947-7-1) 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 DIN rail / panel support. Record the catalog number and revision from the nameplate of the installed unit before specifying a like-for-like spare.
Selection notes for Allen-Bradley 1492-LG3Q
Allen-Bradley 1492-LG3Q — 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 1492-LG3Q; record the nameplate data of the unit being replaced before selecting an equivalent.
- Operating temperature: 0...+55 °C (IEC 60068-2-1) — Verify it in the project documentation before confirming the order.
- Mounting: DIN rail / panel — Check this value against the nameplate of the installed unit before ordering.
- Enclosure rating: IP20 (IEC 60529) — Match it to the existing panel and upstream protection.
- Certifications: CE, UL, cULus — Record it with the other nameplate data when sourcing a replacement.
Cross-check the ratings above with the installed device before confirming the order.
Common questions about 1492-LG3Q
Q.Before ordering 1492-LG3Q, which rated operational voltage entry should be checked?
The rated operational voltage entry quoted above is 800 V (IEC 60947-7-1). Confirm this figure against the unit currently in the panel.
Q.Where can I find the mounting data for 1492-LG3Q?
It is listed in the specification table for Allen-Bradley 1492-LG3Q as DIN rail / panel. Use the value as the reference when sourcing a current-production equivalent.
Q.For 1492-LG3Q, what does the specification table state about operating temperature?
The specification table lists operating temperature = 0...+55 °C (IEC 60068-2-1) for Allen-Bradley 1492-LG3Q. Check the revision of the installed unit if the catalog number has been superseded.
Q.Can the 1492-LG3Q replace the unit currently installed in my panel?
Compare catalog number 1492-LG3Q 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.What should I include in an enquiry for 1492-LG3Q?
Send the full catalog number 1492-LG3Q, the required quantity and a photo of the nameplate. Stock, lead time and the applicable compliance documents can then be confirmed for Allen-Bradley 1492-LG3Q.