SN3/SN4 Series AC Synchronous Motors
SN3/SN4 Series AC Synchronous Motors provide high performance in two frame sizes, NEMA 34 and 42 (90 and 110 mm). Resistor-capacitor kits are also available. These motors are driven economically from standard AC line voltage and the synchronous speed is related to the line frequency.
Features
- SN3 models: NEMA 34 (90 mm), three stack lengths with torque ratings from 198 to 636 N-cm (280 to 900 oz-in)
- SN4 models: NEMA 42 (110 mm), three stack lengths with torque ratings from 500 to 1059 N-cm (715 to 1500 oz-in)
- All models offer flying lead, terminal box, connector and shaft extension options
- 72 rpm motor speed (with 60 Hz voltage)
- Constant speed does not vary with load
- 120 volt AC models
- Fast starting, stopping and reversing
- Can be stalled indefinitely without overheating
- Standard connections include leaded, terminal box, MS connectors, rear shaft
Specifications
SN3 & SN4 Series
120 Volt, 60 Hz, Single Phase, 72 rpm
Shaft Loading | Phase Shifting Components | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Model (1) | Rated Torque (2,3) | Load Inertia (2,3) | Rotor Inertia | Max. Pull-out Torque | Current @ 80% Pull-out Torque | Weight | Max. Radial Force (4) | Max. Axial Force (4) | Resistor | Capacitor (370 VAC) | |
oz-in (Nm) | oz-in-s2(kg-cm2) | oz-in-s2(kg-cm2) | oz-in (Nm) | Arms/phase | lb (kg) | lb | lb | Ohms | Watts | µF | |
SN31H | 280 (1.98) | 0.21 (14.8) | 0.0202 (1.4) | 410 (2.9) | 0.38 | 5.0 (2.27) | 65 | 305 | 200 | 50 | 6.0 |
SN32H | 480 (3.39) | 0.29 (20.5) | 0.038 (2.7) | 690 (4.87) | 0.47 | 8.4 (3.81) | 65 | 305 | 200 | 50 | 10.0 |
SN33H | 690 (4.87) | 0.53 (37.4) | 0.0567 (4.0) | 1015 (7.17) | 0.78 | 11.9 (5.39) | 110 | 305 | 100 | 100 | 10.0 |
SN34H | 900 (6.36) | 0.53 (37.4) | 0.075 (5.3) | 1520 (10.73) | 1.43 | 15.1 (6.84) | 110 | 305 | 50 | 100 | 17.5 |
SN41H | 715 (5.05) | 0.40 (28.2) | 0.0783 (5.5) | 1045 (7.38) | 0.8 | 11 (4.98) | 125 | 404 | 100 | 100 | 12.5 |
SN42H | 1200 (8.47) | 0.82 (57.9) | 0.1546 (10.9) | 1580 (11.16) | 1.19 | 18.4 (8.34) | 110 | 404 | 75 | 100 | 20.0 |
SN43H | 1500 (10.59) | 0.92 (64.9) | 0.2293 (16.2) | 2000 (14.12) | 1.5 | 25.7 (11.64) | 110 | 404 | 50 | 100 | 20.0 |
120 Volt, 50 Hz, Single Phase, 60 rpm
Shaft Loading | Phase Shifting Components | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Model (1) | Rated Torque (2,3) | Load Inertia (2,3) | Rotor Inertia | Max. Pull-out Torque | Current @ 80% Pull-out Torque | Weight | Max. Radial Force (4) | Max. Axial Force (4) | Resistor | Capacitor (370 VAC) | |
oz-in (Nm) | oz-in-s2(kg-cm2) | oz-in-s2(kg-cm2) | oz-in (Nm) | Arms/phase | lb (kg) | lb | lb | Ohms | Watts | µF | |
SN31H | 375 (2.64) | 0.29 (20.5) | 0.0202 (1.4) | 490 (3.46) | 0.34 | 5.0 (2.27) | 65 | 305 | 150 | 25 | 2.0 |
SN32H | 600 (4.24) | 0.52 (36.7) | 0.038 (2.7) | 870 (6.14) | 0.64 | 8.4 (3.81) | 65 | 305 | 100 | 50 | 4.0 |
SN33H | 800 (5.65) | 0.60 (42.3) | 0.0567 (4.0) | 1120 (7.91) | 0.67 | 11.9 (5.39) | 110 | 305 | 100 | 50 | 4.0 |
SN34H | 990 (6.99) | 0.53 (37.4) | 0.075 (5.3) | 1565 (11.05) | 1.1 | 15.1 (6.84) | 110 | 305 | 75 | 100 | 6.5 |
SN41H | 700 (4.94) | 0.53 (37.4) | 0.0783 (5.5) | 1060 (7.49) | 0.71 | 11 (4.98) | 125 | 404 | 100 | 50 | 4.0 |
SN42H | 1020 (7.22) | 1.16 (81.9) | 0.1546 (10.9) | 1575 (11.12) | 0.93 | 18.4 (8.34) | 110 | 404 | 100 | 100 | 6.5 |
SN43H | 1440 (10.17) | 1.30 (91.8) | 0.2293 (16.2) | 2000 (14.12) | 1.6 | 25.7 (11.64) | 110 | 404 | 50 | 225 | 10.5 |
- Reference the "SN3/SN4 Synchronous motors datasheets and diagrams" document in the Media and Downloads section for full nomenclature options
- Rated Torque and Inertia are maximum values. The Rated Torque is the combination of load torque and friction torque. The Rated Inertia is a combination of the load inertia and the motor's Rotor Inertia
- Rated Torque and Inertia denote restart conditions with a stiff coupling of 0.3 arc-sec/oz-in. minimum
- Reference the "SN3/SN4 Synchronous motors datasheets and diagrams" document in the Media and Downloads section for shaft load and bearing fatigue life charts
Media & Downloads
Title | Language | Date | Share URL |
---|---|---|---|
Kollmorgen Full-line Catalog | English | Share URLview | |
Kollmorgen SN Synchronous Motor Selection Guide | English | Share URLview | |
SN3/SN4 Synchronous Motors Datasheets & Diagrams | English | Share URLview | |
Stepper and Synchronous Motors Catalog EN Rev C | English | Share URLview |
Title | File Language | Date | Share URL |
---|---|---|---|
EU Declaration of Conformity PowerPac K-N-SN | English | |
Share URL /sites/default/files/public_downloads/Kollmorgen%20EU%20Declaration%20of%20Conformity%20PowerPac%20K-N-SN.pdf |
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