ABB · Electronic Circuit Breaker
BEY65-4 is an ABB industrial component with Rated current Ie variant; Enclosure rating IP20 (IEC 60529); Operating temperature 0...+55 °C (IEC 60068-2-1). 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 Ievariant
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Enclosure ratingIP20 (IEC 60529)
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Operating temperature0...+55 °C (IEC 60068-2-1)
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MountingDIN rail / panel
Specifications
| Electrical |
| Rated current Ie |
variant |
| Rated insulation voltage Ui |
440 V (IEC 60947-2) |
| Rated impulse withstand Uimp |
4 kV (IEC 60947-2) |
| Breaking capacity Icu/Ics |
6 kA / 10 kA (IEC 60898) |
| Tripping characteristic |
B / C / D (IEC 60898) |
| Number of poles |
1 / 2 / 3 / 4 (IEC 60898) |
| I/O and communication |
| Communication ports |
Modbus, PROFINET, Ethernet |
| 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, CSA, CCC |
Values follow the ABB Electronic Circuit Breaker specification for this catalog number; parameters not confirmed for this variant are omitted rather than estimated.
Model comparison in the same family
| ABB Electronic Circuit Breaker variants |
| Catalog number |
Rated current Ie |
Mounting |
|
BEY65-4 (this page) |
variant |
DIN rail / panel |
| BEA140/XT4 |
variant |
DIN rail / panel |
| BEA205/XT4 |
variant |
DIN rail / panel |
| BEP370-30 |
variant |
DIN rail / panel |
All variants share the same Electronic Circuit Breaker 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 BEY65-4 is the device-level element in an ABB industrial component installation. It receives the field signals and control supply listed above — the rated supply — and switches or conditions the load within the variant 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.
Before you specify
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Ratings. Confirm the rated current and voltage match the circuit before specifying; sizing from the nameplate avoids field mismatch.
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Mounting. Check the DIN rail / panel fit against the existing enclosure before ordering.
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Marking. Record the catalog number and revision from the nameplate of the installed unit for a like-for-like spare.
Technical FAQ
Q.What supply does this device require?
See the Specifications table for the confirmed supply rating; size the source to that value.
Q.What are the key electrical ratings?
The confirmed ratings include variant and CE, UL, CSA, CCC marking. Cross-check them against the installed unit's nameplate.
Q.How is this device mounted?
It mounts by DIN rail / panel. Confirm the cutout or rail before ordering a like-for-like spare.
Q.What is the operating temperature range?
The confirmed operating range is 0...+55 °C (IEC 60068-2-1). 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.