B&R · 2.00 (01/13/2025)
X20AO4632 is a B&R circuit breaker with Rated operational voltage <= 440 V AC; Breaking capacity Icu/Ics Current limiting ±40 mA; 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.
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Rated operational voltage<= 440 V AC
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Breaking capacity Icu/IcsCurrent limiting ±40 mA
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Enclosure ratingIP20 (IEC 60529)
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Mounting35 mm DIN rail (IEC 60715)
Specifications
| Electrical |
| Rated operational voltage |
<= 440 V AC |
| Rated insulation voltage Ui |
500 V eff |
| Breaking capacity Icu/Ics |
Current limiting ±40 mA |
| I/O and communication |
| Bus interface |
0.01 W |
| Communication ports |
POWERLINK, Ethernet |
| Mechanical |
| Dimensions (H x W x D) |
1.0 (10/17/2005) |
| Mounting |
35 mm DIN rail (IEC 60715) |
| Enclosure rating |
IP20 (IEC 60529) |
| Environment and compliance |
| Operating temperature |
-25...+60 °C |
| Certifications |
CE, UL, cULus |
Values follow the B&R 2.00 (01/13/2025) specification for this catalog number; parameters not confirmed for this variant are omitted rather than estimated.
Model comparison in the same family
| B&R 2.00 (01/13/2025) variants |
| Catalog number |
Breaking capacity Icu/Ics |
Rated operational voltage |
|
X20AO4632 (this page) |
Current limiting ±40 mA |
<= 440 V AC |
| X20AO4622 |
Current limiting ±40 mA |
<= 440 V AC |
| X20AO2437 |
Yes, continuous |
<= 440 V AC |
| X20AO2622 |
Current limiting ±40 mA |
<= 440 V AC |
All variants share the same 2.00 (01/13/2025) footprint and terminal layout; the columns above show where they differ. Selecting a different catalog number changes the electrical interface, not the mounting.
Where it sits in the control system
The X20AO4632 is the device-level element in a B&R circuit breaker installation. It receives the field signals and control supply listed above — <= 440 V AC — and switches or conditions the load within the <= 440 V AC 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.
Before you specify
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Trip curve. Select the tripping characteristic (trip curve) for the load profile; a C curve suits standard distribution, B suits long cable runs.
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Breaking capacity. Confirm the installation's prospective fault current does not exceed Current limiting ±40 mA; downstream coordination depends on it.
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Poles. Match the pole count (pole count) to the circuit; mixing 1P and 3P in the same board is a wiring error.
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Mounting. Verify the 35 mm DIN rail (IEC 60715) arrangement fits the existing DIN rail or panel cutout.
Technical FAQ
Q.What supply does this device require?
It requires <= 440 V AC. Size the supply source to the same rating shown in the Specifications table.
Q.What are the key electrical ratings?
The confirmed ratings include <= 440 V AC and CE, UL, cULus marking. Cross-check them against the installed unit's nameplate.
Q.How is this device mounted?
It mounts by 35 mm DIN rail (IEC 60715). Confirm the cutout or rail before ordering a like-for-like spare.
Q.What is the operating temperature range?
The confirmed operating range is -25...+60 °C. Panels running beyond it need derated sizing.
Q.What replaces a unit that is no longer in production?
For a like-for-like spare, record the catalog number and revision from the nameplate; a current-production equivalent is identified by matching function and ratings.