1SFA897104R7000 PSE37-600-70: PSE37-600-70 softstarter: current selection and motor-start coordination
The ABB PSE37-600-70 is a 37 A softstarter for three-phase motor applications, with a stated maximum main-voltage range up to 600 V AC and a 100–250 V AC/DC control supply. ABB’s catalog lists 18.5 kW as an IEC reference at 400 V for this current size. The actual selection must also account for start duration and starts per hour.
Key technical data
| Technical item | Verified value / selection note |
|---|---|
| Type designation | PSE37-600-70 |
| ABB order code | 1SFA897104R7000 |
| Rated operational current | 37 A |
| Main voltage | 208–600 V AC maximum operating range |
| Control supply | 100–250 V, 50/60 Hz AC or DC |
| IEC motor power reference | 18.5 kW at 400 V; confirm duty and conditions |
| Starting method | Soft start and soft stop for three-phase motors |
The table summarizes family or catalog values for identification and initial selection. Confirm the nameplate, environmental limits, standards, revision and options for the exact device before procurement or engineering approval.
Application and system selection
Softstarters reduce motor starting stress by controlling the voltage applied during acceleration; they are not variable-speed drives. Select them when the process needs managed starting and stopping but does not require continuous speed regulation. Review motor locked-rotor current, load inertia, acceleration time, bypass arrangement and thermal recovery between starts.
Configuration and compatibility
Coordinate the PSE with upstream short-circuit protection and the motor overload strategy. ABB’s coordination tables distinguish type 1 and type 2 arrangements and may call for semiconductor fuses for type 2 coordination. Check the exact voltage, motor duty, line contactor scheme, control logic and environmental derating before ordering accessories.
Related models and order-code references
The following designations are related catalog references, not automatic substitutes. Check each complete code, rating, connection, revision and application requirement before selecting a variant.
- 1SFA897114R7000, PSE300-600-70
- PSE105-600-70
- PSE142-600-70
- PSE142-600-70, 75 kW art. 1SFA897110R7000
- PSE170-600-70
- PSE210-600-70
- PSE25-600-70
- PSE250-600-70
- PSE250-600-70-1
- PSE250-600-70-1,1SFA897113R7001
- PSE300-600-70-1
- PSE37-600-70
- PSE37-600-70 (1SFA897104R7000)
- PSE370-600-70
- PSE370-600-70,1SFA897115R7000
- PSE370-600-70-1 1SFA897115R7001
- PSE45-600-70
- PSE60-600-70
- PSE72-600-70
- PSEEK, 1SFA897100R1001
Installation and commissioning
Install the unit with the cooling clearances specified by ABB and keep power conductors correctly sized and torqued. Verify the control supply and start/stop wiring before energizing the motor. Commission with a controlled unloaded or low-risk start, record ramp settings and current, and confirm bypass operation, overload response and restart behavior with the machine owner.
Replacement and procurement information
For a quotation or replacement review, provide the complete designation 1SFA897104R7000 PSE37-600-70, the order code where applicable, serial or hardware revision, quantity, operating environment, connected equipment and required delivery date. Include a legible nameplate image and relevant wiring, loop or switchgear drawing so the exact interface and configuration can be checked.
Ask the supplier to confirm accessories, revision compatibility and any approved successor in writing. Do not select solely from a family name or product photograph. Follow the current ABB installation and safety instructions for the exact unit.
