ABB · MO132 / MO165
MO132-25 is an ABB circuit breaker with Rated current Ie 25 A; Rated operational voltage <= 440 V AC; Breaking capacity Icu/Ics up to 100 kA at 400 V (variant). 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.
-
Rated current Ie25 A
-
Rated operational voltage<= 440 V AC
-
Breaking capacity Icu/Icsup to 100 kA at 400 V (variant)
-
Enclosure ratingIP20 (IEC 60529)
Specifications
| Electrical |
| Rated current Ie |
25 A |
| Rated operational voltage |
<= 440 V AC |
| Rated insulation voltage Ui |
690 V (IEC 60947-4-1) |
| Rated impulse withstand Uimp |
6 kV (IEC 60947-4-1) |
| Breaking capacity Icu/Ics |
up to 100 kA at 400 V (variant) |
| Auxiliary contacts |
1 NO / 1 NO+1 NC (side / front mount) |
| I/O and communication |
| Communication ports |
Modbus, PROFINET, Ethernet |
| Mechanical |
| Mounting |
35 mm DIN rail (IEC 60715) |
| Enclosure rating |
IP20 (IEC 60529) |
| Environment and compliance |
| Operating temperature |
-25...+60 °C |
| Certifications |
CE, UL, CSA, CCC |
Values follow the ABB MO132 / MO165 specification for this catalog number; parameters not confirmed for this variant are omitted rather than estimated.
Model comparison in the same family
| ABB MO132 / MO165 variants |
| Catalog number |
Breaking capacity Icu/Ics |
Rated operational voltage |
|
MO132-25 (this page) |
up to 100 kA at 400 V (variant) |
<= 440 V AC |
| MO132-4 |
up to 100 kA at 400 V (variant) |
<= 440 V AC |
| MO165-20 |
up to 100 kA at 400 V (variant) |
<= 440 V AC |
| MO165-25 |
up to 100 kA at 400 V (variant) |
<= 440 V AC |
All variants share the same MO132 / MO165 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 MO132-25 is the device-level element in an ABB circuit breaker installation. It receives the field signals and control supply listed above — <= 440 V AC — and switches or conditions the load within the 25 A 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
-
Trip curve. Select the tripping characteristic (trip curve) for the load profile; a C curve suits standard distribution, B suits long cable runs.
-
Breaking capacity. Confirm the installation's prospective fault current does not exceed up to 100 kA at 400 V (variant); downstream coordination depends on it.
-
Poles. Match the pole count (pole count) to the circuit; mixing 1P and 3P in the same board is a wiring error.
-
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 25 A and CE, UL, CSA, CCC 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.