Motor Control Solutions for Industrial and Material Handling Equipment

Our name, PE®or Power Electronics® International, Inc.® is synonymous with quality, heavy-duty VFDs and motor control equipment.
Search the Power Knowledge Center (F-codes, general info)
PE: Our history and our future. Powering innovative solutions since 1969.

Soft-Starts

PE® Soft-Starts – Available for both 1- and 2-speed A.C. motors – featuring the Smooth-Move,® BT (Bridge-Trolley), and E (Elevator)-Series. View our full line of soft-start 3-phase motor controllers here.

Use These Tables to Find the Right Model(s) for Your Applications

  • Rotate your device to landscape orientation for optimized viewing of tables.

Note: When filtering by HP rating, select the value that either meets or just exceeds your application specification.

Product Image (click to enlarge)Model (Click on the name to view the product page)Item DescriptionMotor Motion TypeMax HP (kW) @ 208-230VACMax HP (kW) @ 380-415VACMax HP (kW) @ 460VACMax HP (kW) @ 575VACMax Amps (FLA)Select control voltage then check the box OR press Add to Quote (goes to product page)hf:att:pa_230-hp-ratinghf:att:pa_380-415-hp-ratinghf:att:pa_460-hp-ratinghf:att:pa_575-hp-ratinghf:att:pa_max-ampshf:att:pa_modelhf:att:pa_motion-type
Top view of a Smooth-Move® 1 ("S" frame size).
SM4A1S

A 4 amp Single-Speed Smooth-Move® Soft-Start (to control travel motion) at 208-460/3/60 (50Hz available).

Traverse applications only1 HP (0.75 kW)2 HP (1.5 kW)4.0 A
1-hp-0-75-kw2-hp-1-5-kw4-0-asmooth-movetraverse-applications-only
Top view of a Smooth-Move® 1 ("S" frame size).
SM4A1L57

A 4 amp Single-Speed Smooth-Move® Soft-Start (to control travel motion) at 208-575/3/60 (50Hz available).

Traverse applications only1 HP (0.75 kW)2 HP (1.5 kW)3 HP (2.2 kW)4.0 A
1-hp-0-75-kw2-hp-1-5-kw3-hp-2-2-kw4-0-asmooth-movetraverse-applications-only
Top view of a Smooth-Move® 1 ("S" frame size).
SM5A1S

A 5 amp Single-Speed Smooth-Move® Soft-Start (to control travel motion) at 208-460/3/60 (50Hz available).

Traverse applications only1.5 HP (1.1 kW)3 HP (2.2 kW)5.0 A
1-5-hp-1-1-kw3-hp-2-2-kw5-0-asmooth-movetraverse-applications-only
Top view of a Smooth-Move® 1 ("S" frame size).
SM5A1L57

A 5 amp Single-Speed Smooth-Move® Soft-Start (to control travel motion) at 208-575/3/60 (50Hz available).

Traverse applications only1.5 HP (1.1 kW)3 HP (2.2 kW)3 HP (2.2 kW)5.0 A
1-5-hp-1-1-kw3-hp-2-2-kw3-hp-2-2-kw5-0-asmooth-movetraverse-applications-only
SM8A1L
SM8A1L

A 8 amp Single-Speed Smooth-Move® Soft-Start (to control travel motion) at 208-460/3/60 (50Hz available).

Traverse applications only2.5 HP (1.8 kW)5 HP (4 kW)8.0 A
2-5-hp-1-8-kw5-hp-4-kw8-0-asmooth-movetraverse-applications-only
Top view of a Smooth-Move® 1 ("S" frame size).
SM8A1L57

A 8 amp Single-Speed Smooth-Move® Soft-Start (to control travel motion) at 208-575/3/60 (50Hz available).

Traverse applications only2.5 HP (1.8 kW)5 HP (4 kW)5 HP (4 kW)8.0 A
2-5-hp-1-8-kw5-hp-4-kw5-hp-4-kw8-0-asmooth-movetraverse-applications-only
SM10A1L
SM10A1L

A 10 amp Single-Speed Smooth-Move® Soft-Start (to control travel motion) at 208-460/3/60 (50Hz available).

Traverse applications only3 HP (2.2 kW)6 HP (4.5 kW)10.0 A
3-hp-2-2-kw6-hp-4-5-kw10-0-asmooth-movetraverse-applications-only
Top view of a Smooth-Move® 1 ("S" frame size).
SM10A1L57

A 10 amp Single-Speed Smooth-Move® Soft-Start (to control travel motion) at 208-575/3/60 (50Hz available).

Traverse applications only3 HP (2.2 kW)6 HP (4.5 kW)7.5 HP (5.5 kW)10.0 A
3-hp-2-2-kw6-hp-4-5-kw7-5-hp-5-5-kw10-0-asmooth-movetraverse-applications-only
BT738-1D
BT738-1D

A single-speed BT™ Series soft-start (to control travel motion only) up to 4/7.5 HP at 208-230/380-415 VAC (60Hz available).

Traverse applications only4 HP (3 kW)7.5 HP (5.5 kW)
4-hp-3-kw7-5-hp-5-5-kwbt-single-speedtraverse-applications-only
BT746-1D
BT746-1D

A single-speed BT™ Series soft-start (to control travel motion only) up to 4/7.5 HP at 208-230/460 VAC (50Hz available).

Traverse applications only4 HP (3 kW)7.5 HP (5.5 kW)
4-hp-3-kw7-5-hp-5-5-kwbt-single-speedtraverse-applications-only
BT757-1D
BT757-1D

A single-speed BT™ Series soft-start (to control travel motion only) up to 7.5 HP at 460/575 VAC (50Hz available).

Traverse applications only7.5 HP (5.5 kW)7.5 HP (5.5 kW)
7-5-hp-5-5-kw7-5-hp-5-5-kwbt-single-speedtraverse-applications-only
BT1038-1D
BT1038-1D

A single-speed BT™ Series soft-start (to control travel motion only) up to 5/10 HP at 208-230/380-415 VAC (60Hz available).

Traverse applications only5 HP (4 kW)10 HP (7.5 kW)
5-hp-4-kw10-hp-7-5-kwbt-single-speedtraverse-applications-only
BT1046-1D
BT1046-1D

A single-speed BT™ Series soft-start (to control travel motion only) up to 5/10 HP at 208-230/460 VAC (50Hz available).

Traverse applications only5 HP (4 kW)10 HP (7.5 kW)
5-hp-4-kw10-hp-7-5-kwbt-single-speedtraverse-applications-only
BT1523-1A
BT1523-1A

A single-speed BT™ Series soft-start (to control travel motion only) up to 15 HP at 208-230 VAC (50Hz available).

Traverse applications only15 HP (11 kW)
15-hp-11-kwbt-single-speedtraverse-applications-only
BT1538-1D
BT1538-1D

A single-speed BT™ Series soft-start (to control travel motion only) up to 7.5/15 HP at 208-230/380-415 VAC (60Hz available).

Traverse applications only7.5 HP (5.5 kW)15 HP (11 kW)
7-5-hp-5-5-kw15-hp-11-kwbt-single-speedtraverse-applications-only
BT1546-1D
BT1546-1D

A single-speed BT™ Series soft-start (to control travel motion only) up to 7.5/15 HP at 208-230/460 VAC (50Hz available).

Traverse applications only7.5 HP (5.5 kW)15 HP (11 kW)
7-5-hp-5-5-kw15-hp-11-kwbt-single-speedtraverse-applications-only
BT1557-1D
BT1557-1D

A single-speed BT™ Series soft-start (to control travel motion only) up to 15 HP at 460/575 VAC (50Hz available).

Traverse applications only15 HP (11 kW)15 HP (11 kW)
15-hp-11-kw15-hp-11-kwbt-single-speedtraverse-applications-only
BT2523-1A
BT2523-1A

A single-speed BT™ Series soft-start (to control travel motion only) up to 25 HP at 208-230 VAC (50Hz available).

Traverse applications only25 HP (18.5 kW)
25-hp-18-5-kwbt-single-speedtraverse-applications-only
BT3038-1A5
BT3038-1A5

A single-speed BT™ Series soft-start (to control travel motion only) up to 30 HP at 380-415 VAC (60Hz available).

Traverse applications only30 HP (22 kW)
30-hp-22-kwbt-single-speedtraverse-applications-only
BT3046-1A
BT3046-1A

A single-speed BT™ Series soft-start (to control travel motion only) up to 30 HP at 460 VAC (50Hz available).

Traverse applications only30 HP (22 kW)
30-hp-22-kwbt-single-speedtraverse-applications-only
BT3057-1A
BT3057-1A

A single-speed BT™ Series soft-start (to control travel motion only) up to 30 HP at 575 VAC (50Hz available).

Traverse applications only30 HP (22 kW)
30-hp-22-kwbt-single-speedtraverse-applications-only
BT4023-1A
BT4023-1A

A single-speed BT™ Series soft-start (to control travel motion only) up to 40 HP at 208-230 VAC (50Hz available).

Traverse applications only40 HP (30 kW)
40-hp-30-kwbt-single-speedtraverse-applications-only
BT5038-1A5
BT5038-1A5

A single-speed BT™ Series soft-start (to control travel motion only) up to 50 HP at 380-415 VAC (60Hz available).

Traverse applications only50 HP (37 kW)
50-hp-37-kwbt-single-speedtraverse-applications-only
BT5046-1A
BT5046-1A

A single-speed BT™ Series soft-start (to control travel motion only) up to 50 HP at 460 VAC (50Hz available).

Traverse applications only50 HP (37 kW)
50-hp-37-kwbt-single-speedtraverse-applications-only
BT5057-1A
BT5057-1A

A single-speed BT™ Series soft-start (to control travel motion only) up to 50 HP at 575 VAC (50Hz available).

Traverse applications only50 HP (37 kW)
50-hp-37-kwbt-single-speedtraverse-applications-only
BT7538-1A5
BT7538-1A5

A single-speed BT™ Series soft-start (to control travel motion only) up to 75 HP at 380-415 VAC (60Hz available).

Traverse applications only75 HP (55 kW)
75-hp-55-kwbt-single-speedtraverse-applications-only
BT7546-1A
BT7546-1A

A single-speed BT™ Series soft-start (to control travel motion only) up to 75 HP at 460 VAC (50Hz available).

Traverse applications only75 HP (55 kW)
75-hp-55-kwbt-single-speedtraverse-applications-only
BT7557-1A
BT7557-1A

A single-speed BT™ Series soft-start (to control travel motion only) up to 75 HP at 575 VAC (50Hz available).

Traverse applications only75 HP (55 kW)
75-hp-55-kwbt-single-speedtraverse-applications-only
E-Series 2-Speed Elevator/Lift Reduced Torque Controller
E2020-1B

A single-speed E-Series™ soft-start (for A.C. Elevators and Lifts) up to 20 Amps (FLA) at 208 VAC (50Hz available).

A.C. Elevators and Lifts20 A
20-ae-series-1-speeda-c-elevators-and-lifts
E-Series 2-Speed Elevator/Lift Reduced Torque Controller
E2023-1B

A single-speed E-Series™ soft-start (for A.C. Elevators and Lifts) up to 20 Amps (FLA) at 230 VAC (50Hz available).

A.C. Elevators and Lifts20 A
20-ae-series-1-speeda-c-elevators-and-lifts
E-Series 2-Speed Elevator/Lift Reduced Torque Controller
E2038-1B

A single-speed E-Series™ soft-start (for A.C. Elevators and Lifts) up to 20 Amps (FLA) at 380-415 VAC (60Hz available).

A.C. Elevators and Lifts20 A
20-ae-series-1-speeda-c-elevators-and-lifts
E-Series 2-Speed Elevator/Lift Reduced Torque Controller
E2046-1B

A single-speed E-Series™ soft-start (for A.C. Elevators and Lifts) up to 20 Amps (FLA) at 460 VAC (50Hz available).

A.C. Elevators and Lifts20 A
20-ae-series-1-speeda-c-elevators-and-lifts
E-Series 2-Speed Elevator/Lift Reduced Torque Controller
E2057-1B

A single-speed E-Series™ soft-start (for A.C. Elevators and Lifts) up to 20 Amps (FLA) at 575 VAC (50Hz available).

A.C. Elevators and Lifts20 A