IT. Soft Starters

Low Hp Reduced Voltage Applications OEM FocusTorque LimiterS701S752

With an impressive line of softstarters designed with smallmotor OEM applications inmind, Eaton gives you choices.Whether it’s the TL Line ofStarting Torque Limiters, the S701 Line of Soft StartControllers or the moreadvanced S752 Soft Starter,you are guaranteed to find an Eaton solution to fit yourapplication needs.

Small size and easy configura-tion make these soft startersideal for use in the most cost-sensitive applications.We have IT. for every applica-tion, a complete range ofsolid-state reduced voltagestarters optimized to satisfyyour application requirements.From simple soft starting toadvanced starting and stoppingcontrol with protective

functions and communications,the IT. line of soft starters provides a unique combinationof soft starting and electro-mechanical features alongwith the technologicaladvances you’ve come to expect from Eaton’s Cutler-Hammer products.

Eaton gives you the choice.

Eaton offers soft starters that extend the life of yourmechanical components, pro-vide the safety and reliabilityof 24V DC control power, andretrofit into existing enclosuresand MCC buckets. Not onlythat, but Eaton’s Cutler-HammerIT. Soft Starters’ small size andride-through capability willmeet the most demandingdesign and system expectations.

With a direct focus on controlsystem design and customerprofitability, Eaton is proud to offer the Cutler-HammerIntelligent Technologies (IT.) Soft Starters for lowhorsepower reduced voltage applications – a completeoffering for the OEM customer.

Our TL Line of Starting TorqueLimiters, S701 Soft StartControllers and S752 SoftStarters provide controlledacceleration and decelerationof single and three-phasemotors and offer a range of control and application flexibility to meet the needs of most OEM applications.

The low cost solutions to lowhorsepower applications, theIT. solid-state reduced voltagesoft starters have all the fea-tures and options you value.

IT. Intelligent soft starting solutions.

Low horsepower doesn’t have to mean low value!

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Conveyors

• Smooth starts and stops• No sliding or tilting of goods• No snapping of chains or

belts• Kick-Start to control high

friction loads (S701 Only)• Communications capabilities

with IT. SNAP Modules(S752 Only)

Compressors

• Reduces starting currents by 40-50% compared toacross-the-line starters

• Provides fast start of thecompressor

Fans & Pumps

• Reduces squirreling or snapping of belts, extendingthe life 2 to 6 times.

• Reduces inrush currents• Unlimited starts and stops• Soft Stop minimizes “water

hammer”

Elevators

• Smooth starts and stops• Reduced wear on belts,

gears, chains, clutches,shafts and bearings –decreasing required mainte-nance and extending the life.

• Reduce inrush currents tominimize voltagedisturbances

Target applications.

Eaton’s Cutler-Hammer IT. SoftStarter uses Silicon ControlledRectifiers (SCRs) to electroni-cally reduce the voltage outputto the motor, allowing for aramp up to the line voltage.

Soft starting a motor will reducemechanical component shock,minimizing coupling and shaftdamage, preventing rotor and

winding failure, and stoppingdrive belt squeal and breakage.Soft starting can also preventdamage to the load by eliminating sudden systemacceleration. The reducedinrush currents will alsodecrease stress on the electrical distribution system increasing the life of electrical components.

• Soft stopping of the loadwhere a stop time that isgreater than the coast to rest time is required (S701and S752 only) – a featurethat is beneficial in materialhandling and pumping applications.

• Reduce peak starting currents to eliminate voltagedrop on the motor start. Thiscan prevent nuisance breakertrips and reduce electricaldistribution system distur-bances and their associatedcosts.

Why choose soft starting?Other benefits include:

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Because soft starting minimizesshock to mechanical compo-nents, the life of your systemis extended, increasing reliability and lowering costs.Less shock to products onconveyors and material handling equipment also

reduces the costs associatedwith damage to handled products. Lower inrush current causes less stress on electrical components andjunctions further maximizingsystem life.

The use of an IT. Soft Starterreduces slippage, squealingand stretching – leading to anextended belt life of 2-6 timesthat of a traditional across-the-line starter. An extendedlife means reduced downtimeand lower maintenance costs.

Cutler-Hammer IT. Soft Startersfeature IP20 rated finger-safeterminals, and offer 24V DCcontrol, emphasizing Eaton’scommitment to keeping yousafe. When your personneland equipment are at risk,nothing but the safest, mostreliable soft starter will do –IT. is the answer.

The hazards and potential forfatal results of human contactwith AC current are well known;low voltage DC control power

eliminates hazards for person-nel while working on controlsystems. This not onlyenhances worker safety, butalso eliminates the costs forprotective clothing and enclo-sures that are required whenAC control power is used.Further, the use of 24V DCcontrol simplifies compliancewith NEC and OSHA regula-tions. Again, improving safetyconditions and reducing system costs.

The S752’s 24V DC pulse widthmodulated coil utilizes minimumpower, only 5.0W steady state,reducing the risk of injury anddamage from electrical shockand short circuit faults. Theremovable and lockable con-trol terminal block eliminatescontrol wiring errors whenreplacing a device, providingyet another level of safety.

What valuedoEaton IT. Soft

No need to worry when IT. is at work.

Longer life.

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Starters offer your business?

The small size of IT. SoftStarters make them the perfectoption for existing soft startingor retrofitting applications.

The simple addition of aManual Motor Protector orFull Voltage Starter to the TL Torque Limiter or S701Controller provide controllerfunctionality and overload protection, while limited control wiring makes installation quick and easy.

The S752 combines the overload and bypass contactorinto one device for fast andeasy installation. Functions

traditionally provided by multiple devices are nowoffered in one compact package. With its small size, it can easily fit in place ofexisting soft starters, wye-delta starters or across-the-line NEMA and IEC starters.This feature allows easyupgrades to existing systems.Now you can get the benefitsof soft starting without havingto change enclosure sizes oradd additional assemblies –saving you time and money.

The perfect fit.

What better way to protectyour system’s integrity than by improving the ride-throughcapability of your control products?

The S752 utilizes a pulse width modulated (PWM) coil to minimize DC current,reducing energy to the

contact block and allowing for the small size of the starter.The PWM coils in combinationwith an efficient IT. PowerSupply, work to reduce oreliminate the negative effectsof electrical system distur-bances, brownouts and protect against power loss.

Maintaining your integrity.

Nothing is more costly than system downtime – why not choose an IT. Soft Starter and be confident in the integrity ofyour control system?

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Soft StartRamp Up time0.5 to 30 sec.

Initial Torque0 to 95%

Motor Voltage

Time

S752 Control

Function Diagram

Soft StopRamp Down time 0 to 30 sec.

Initial Torque Control, Soft Start and Soft Stop

Key Features• Advanced selectable protective features safeguard the

motor and system against a variety of system faults.• Run bypass mode greatly reduces internal heating created

by the power dissipation across the SCRs. The bypasscontactor directly connects the motor to the line andimproves system efficiency by reducing internal powerlosses. Less heat minimizes enclosure size and coolingrequirements and maximizes the life of all devices in theenclosure.

• Internal run bypass contactor and overload protectioneliminate the need for additional devices, thereby reducingenclosure sizes, minimizing installation and wiring time andreducing overall assembly size and cost

• Wide range of overload FLA settings (31 – 100% of ratedcurrent) and selectable trip class (10, 20, 30) offers usersthe flexibility to fine tune the starter to match specificapplication requirements.

• 24V DC control module enhances personnel and equipment safety

• Communications enabled with the addition of a SNAP (Starter Network Adapter Product)

The IT. S752 is very compact,multi-functional, easy to installand easy to program. Thedevice is available in configu-rations to be applied either inthe line of the motor, or in thedelta windings of the motor.The in-line device is availablefor current ranges from 0.25 to50 amps. The inside-the-deltadevice is available for currentranges from 0.44 to 86 amps.

With its integral solid-stateoverload protection and runbypass contactor, the IT.S752 eliminates the need topurchase additional devices -reducing component, wiring,panel and enclosure costs.The S752 is available as acomponent for panel mounting,in Motor Control Centers or inEnclosed Control (NEMA 1, 3R,4, 4X, 7/9 and 12).

Integral run bypass and overload protection.Asmall but complete package.

IT. S752 Soft Starter

IT. S752

Control Functions

Initial Torque Control 0–95%Soft Start 0.5–30 secondsSoft Stop 0–30 secondsElectrical Ratings (Standard Duty Ratings)

Operating Voltage (Ue) 200–600 V ACIn-Line Current Capacity 50AInside-the-Delta Current Capacity 78AControl Steady State Current 200mAInrush Current (During Bypass) 3.6A @ 50mSMax In-Line Power @ 575V AC 40HP

@ 440V 30kWMax Inside-the-Delta Power @ 575V AC 75HP

@ 440V 45kWOperating Frequency 47-63 HzEnvironmental Ratings

Operating Temperature -35 to 40° CStorage Temperature -40 to 80° CAltitude 2000mHumidity 95% Non-CondensingVibration IEC 68-2-6 3g 10-150HzStandards and Certifications

UL Listed (NMFT) IEC 60947-4-2 CSA Certified (321106)CE Marked EN 60947-4-2 CSA Elevator Duty (241103)

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Soft-StartRamp Up time0.5 to 10 sec.

Kick-StartInitial torque,0 to 85% for 200me

Dynamic Brake0 to 50A DC,0 to 500% of nominal torque

Brake

Torque

Initial Torque

0 to 85%

Soft StopRamp Down time 0 to 10 sec.

Motor VoltageS701 Control

Function Diagram

Time

Initial Torque Control, Soft Start, Soft Stop, and Kick-Start

Key Features• Unlimited Number of START/STOP operations per hour• Kick-Start helps reduce mechanical stress on the system• The DC braking option is used to enhance safety of

dangerous machinery by eliminating mechanical systemcomponents and for the quick stopping of high inertia loads

• Bypass auxiliary option is designed to actuate an externalbypass contactor, remove heat from the enclosure inRUN mode maximizing operating current, increase theunit amperage to 30A and can be used for up-to-speedindication

• Panel / DIN rail mount

The S701 offers advancedmotor control in a small andinexpensive package. WithSoft Start, Soft Stop, Kick-Startand Initial Torque Control, the

IT. S701 is the option for lowhorsepower applications that require slightly moreadvanced soft starting andstopping capabilities.

Application-specific options.

IT. S701 Soft Start Controller

IT. S701Control Functions

Kick-Start 200m seconds, 0–85%Initial Torque Control 0–85%Soft Start 0.5–10 secondsSoft Stop 0–10 secondsElectrical Ratings

Operating Voltage (Ue) 200-600V ACMax. Operating Current (le) 25AMax. Power @480V AC 5HP

@400V AC 11KWOperating Frequency 50/60 HzEnvironmental Ratings

Operating Temperature -30 to 40°C (-22 to 104°F)Storage Temperature -30 to 80°C (-22 to 176°F)Altitude 2000mVibration IEC 68 2–6 5g 10 to 150HzStandards and Certifications

UL 508 Listed IEC 60947-4-2 CSA Certified C22.2 No. 14CE Marked EN 60947-4-2

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IT. TL ProductsControl Functions

Initial Torque Control 0–85%Soft Start 0.5–5 secondsElectrical Ratings

Operating Voltage (Ue) 110–600V ACMax. Operating Current (le) 25AMax. 3-Phase Power @480V AC 10HP

@400V AC 7.5kWMax. 1-Phase Power @240V AC 3HP

@220V AC 2.3kWOperating Frequency 50/60HzEnvironmental Ratings

Operating Temperature -30 to 40°C (-22 to 104°F)Storage Temperature -30 to 80°C (-22 to 176°F)Altitude 2000mVibration IEC 68-2-6 5g 10 to 150HzStandards and Certifications

UL 508 Listed IEC 60947-4-2 CSA Certified C22.2 No. 14CE Marked EN 60947-4-2

In small single-phase or three-phase horsepower motorapplications where an across-the-line start is too hard on

the motor, electrical system orproducts, the compact TL isthe perfect low cost soft starting solution.

Key Features• Unlimited Number of START/STOP operations per hour• 45mm wide design• LED status indication• No control wiring needed for quick and easy installation• Single- and three-phase motor applications

TL Control

Function Diagram

Motor Voltage

Soft StartRamp up time0.5 to 5 sec.

Initial Torque0 to 85%

Time

Initial Torque Control and Soft Start

Fast and friendly.

IT. TL Line of Starting Torque Limiters

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Eaton’s electrical business is a global leader inelectrical control, power distribution, and industrialautomation products and services. Throughadvanced product development, world-classmanufacturing methods, and global engineeringservices and support, Eaton’s electrical businessprovides customer-driven solutions under brandnames such as Cutler-Hammer®, Powerware®,Durant®, Heinemann®, Holec® and MEM®, which globally serve the changing needs of the industrial,utility, light commercial, residential, and OEMmarkets. For more information, visitwww.EatonElectrical.com.

Eaton Corporation is a diversified industrialmanufacturer with 2003 sales of $8.1 billion. Eaton isa global leader in fluid power systems and servicesfor industrial, mobile and aircraft equipment;electrical systems and components for powerquality, distribution and control; automotive engineair management systems and powertrain controls forfuel economy; and intelligent drivetrain systems forfuel economy and safety in trucks. Eaton has 55,000employees and sells products to customers in morethan 100 countries. For more information, visitwww.eaton.com.

© 2005 Eaton CorporationAll Rights ReservedPrinted in USAForm No. BR03902004EJanuary 2005

Eaton Electrical Inc.1000 Cherrington ParkwayMoon Township, PA 15108United Statestel: 1-800-809-2772www.EatonElectrical.com