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Pub 49442

Effective 01/02

1

Instruction Leaflet for the S701X25N3BP

Soft Start Controller with Auxiliary Contact

Description

The S701 device is a reduced voltage soft start controller 
designed to control acceleration and deceleration of three-
phase motors. With the Auxiliary Contact Option, it is possible 
to control an external bypass to reduce heating and lengthen 
acceleration and deceleration times.

The S701 provides the user with the ability to adjust initial 
torque, ramp up and down time, and also select kick start for 
high inertia loads.

Installation

WARNING

DO NOT INSTALL OR PERFORM MAINTENANCE ON THIS 
DEVICE WHILE EQUIPMENT IS ENERGIZED. DEATH OR 
SEVERE PERSONAL INJURY CAN RESULT FROM CON-
TACT WITH ENERGIZED EQUIPMENT. VERIFY THAT NO 
VOLTAGE IS PRESENT BEFORE PROCEEDING WITH 
INSTALLATION OR MAINTENANCE.

Only qualified persons, as defined in the National Electric 
Code, who are familiar with the installation, maintenance and 
operation of this device and the equipment onto which it is to 
be installed, as well as applicable local, state and national reg-
ulations and industry standards and accepted practices 
regarding safety of personnel and the equipment safety should 
be permitted to install, maintain or operate this device. These 
instructions are provided only as a general guide to such quali-
fied persons and are not all-inclusive. They do not cover every 
application or circumstance which may arise in the installation, 
maintenance or operation of this equipment. Users are advised 
to comply with all local, state and national regulations and 
industry standards and accepted practices regarding safety of 
personnel and equipment.

CAUTION

REMOVE ALL POWER FROM THE INSTALLATION 
BEFORE ATTEMPTING TO INSTALL OR REMOVE THIS 
DEVICE. THIS INCLUDES L1, L2, L3 AS WELL AS A1, A2, 
11, 12, 13 and 14.

Mounting Guidelines for S701X25N3BP

Important 

— The controller is designed for vertical mounting in 

free air. If the controller is mounted horizontally, the load cur-
rent must be reduced to 50% of rated current.

Maintenance

Cooling fins must be kept clean and free from dust. The airflow 
must not be blocked.

Figure 1. 

Recommended Mounting Distance

Figure 2. 

Dimensions

Wiring Directions

!

IMPORTANT

When using electrical or pnuematic tools for screw termi-
nals, observe maximum torque limits. 

75°C

AWG (mm

2

)

AWG  (mm

2

)

18 - 10 (1.5 -6)

20 - 16 (0.5 - 1.5)

16 - 10 
(2 x 1.5-6)

2 x 20 - 18
(2 x 0.5 - 0.75)

16 - 10 (1.5 - 6)

20 - 16 (0.5 - 1.5)

2 x 16 - 10
(2 x 1.5 - 6)

2 x 20 - 16
(2 x 0.5 - 1.5)

18 - 8 (1 - 10)

20 - 16 (0.5 - 1.5)

2 x 18 - 10
(2 x 1 - 6)

2 x 20 - 16
(2 x 0.5 - 1.5)

Posidrive 1
1.2 Nm max.
[4.4 lb-in max.]

N/A

6 mm
1.2 Nm max.
[4.4 lb-in max.]

3 mm
0.4 Nm max.
[3.5 lb-in max.]

* UL Tested.

*

*

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