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B&R · B&R X20 I/O module
X20SO4120 is a B&R circuit breaker with Breaking capacity Icu/Ics See section "Inrush current behavior for output channels".; Supply voltage 24 V DC (IEC 61131-2); Enclosure rating IP20 (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 | |
| Rated insulation voltage Ui | 500 V eff |
|---|---|
| Breaking capacity Icu/Ics | See section "Inrush current behavior for output channels". |
| Supply voltage | 24 V DC (IEC 61131-2) |
| Output current | 2 A |
| Frequency | See section "Inrush current behavior for output channels". |
| I/O and communication | |
| Bus interface | 0.25 W |
| Communication ports | POWERLINK, Ethernet |
| Mechanical | |
| Mounting | 35 mm DIN rail (IEC 60715) |
| Enclosure rating | IP20 (IEC 60529) |
| Environment and compliance | |
| Operating temperature | 0...+55 °C (IEC 60068-2-1) |
| Certifications | CE, UL, cULus |
Values follow the B&R B&R X20 I/O module specification for this catalog number; parameters not confirmed for this variant are omitted rather than estimated.
| B&R B&R X20 I/O module variants | |||
| Catalog number | Breaking capacity Icu/Ics | ||
|---|---|---|---|
| X20SO4120 (this page) | See section "Inrush current behavior for output channels". | ||
| X20SO4110 | See section "Inrush current behavior for output channels". | ||
| X20SO6300 | See section "Inrush current behavior for output channels". | ||
| X20SC2212 | Type 1 | ||
Before selecting an alternative, confirm its dimensions, terminals and installation requirements in the manufacturer documentation.
The X20SO4120 is the device-level element in a B&R circuit breaker installation. It receives the field signals and control supply listed above — 24 V DC (IEC 61131-2) — 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 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.
Industrial X20SO4120 — 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 X20SO4120; 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.Before ordering X20SO4120, which operating temperature entry should be checked?
The operating temperature entry quoted above is 0...+55 °C (IEC 60068-2-1). Check the revision of the installed unit if the catalog number has been superseded.
Q.Where can I find the frequency data for X20SO4120?
It is listed in the specification table for Industrial X20SO4120 as See section "Inrush current behavior for output channels".. Compare it with the nameplate of the installed unit before ordering.
Q.For X20SO4120, what does the specification table state about supply voltage?
The specification table lists supply voltage = 24 V DC (IEC 61131-2) for Industrial X20SO4120. Confirm this figure against the unit currently in the panel.
Q.Can the X20SO4120 replace the unit currently installed in my panel?
Compare catalog number X20SO4120 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 X20SO4120?
Send the full catalog number X20SO4120, the required quantity and a photo of the nameplate. Stock, lead time and the applicable compliance documents can then be confirmed for Industrial X20SO4120.
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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