Catalogue reference. Availability, exact specification and OEM or aftermarket supply are confirmed in your quotation.
1SAM461000R1016 — MO165-54 Circuit breaker for magnetic only protection 54A MO16554
relayPart number: 1SAM461000R1016
ABB MO165-54 (1SAM461000R1016) is a three-pole, magnetic-only manual motor starter rated at 54 A. It provides manual switching and short-circuit protection, with a rated AC-3 motor power of 22 kW at 400 V. A suitable separate thermal or electronic overload relay is required for motor overload protection.
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Technical specifications
| Manufacturer | ABB |
|---|---|
| Part number | 1SAM461000R1016 |
| Category | Electrical & controls |
| Published component description | MO165-54 Circuit breaker for magnetic only protection 54A MO16554 |
| Reference status | Published part reference; specification and fitment require confirmation |
| Availability | On request |
| Protection type | Magnetic only; short-circuit protection |
| Rated operational current | 54 A |
| Number of poles | 3 |
| Rated operational power | 22 kW at 400 V AC, three-phase, AC-3 |
| Rated operational voltage | 690 V AC; 250 V DC, main circuit |
| Rated frequency | 50/60 Hz |
| Service short-circuit breaking capacity Ics | 30 kA at 400 V AC |
| Ultimate short-circuit breaking capacity Icu | 50 kA at 400 V AC |
| Instantaneous short-circuit current setting | 810 A |
| Terminal type | Screw terminals |
| Actuator | Rotary handle with ON/OFF/TRIP indication |
| DIN rail mounting | TH35-7.5 or TH35-15 |
| Degree of protection | IP20 housing; IP10 main circuit terminals |
| Dimensions (width × height × depth) | 55 × 142.65 × 122.1 mm |
| Net weight | 0.97 kg |
Catalogue information may contain errors or be out of date. Full specifications and verified details are available on request. Confirm the part number and equipment fitment with us before ordering.
Product questions
Does the MO165-54 provide motor overload protection?
No. This is a magnetic-only manual motor starter for short-circuit protection and manual switching. Motor overload protection requires an appropriate separate thermal or electronic overload relay.
What motor power and current is the ABB MO165-54 rated for?
Its rated operational current is 54 A. ABB lists 22 kW at 400 V AC for AC-3 and AC-3e duty. Selection still depends on the motor nameplate, circuit and applicable ratings.
What is the short-circuit breaking capacity of the MO165-54?
At 400 V AC, its rated service short-circuit breaking capacity Ics is 30 kA and its rated ultimate breaking capacity Icu is 50 kA. These ratings depend on voltage and should not be confused with an assembly SCCR.
Can the MO165-54 replace an existing motor circuit breaker?
It may be suitable only after the motor and circuit requirements are checked. Compare the existing device’s full part number, protection functions, current, voltage, fault rating and dimensions; provide the equipment model and serial number for verification. Its magnetic-only protection does not replace a thermal overload function.
Researched on:
Research information may be outdated. Confirm fitment and specifications with our team before ordering.