Sales Training Outline 2006

Klaus TumProduct Manager

MiniatureCircuit Breakers

35 Royal RoadFlemington, NJ 908-806-9400 www.altechcorp.com

• Electrical Engineer• 10 years with Altech Corporation• Product Manager of Circuit Breakers,

Busbars, Motor Disconnect Switches,Foot Switches, Sensors, Contactors,Motor Starters, Pin & Sleeve Connectors

Klaus Tum (short bio)

Altech’s Line of Circuit Breakers Includes:

• Miniature circuit breakers• -UL508

• Three phase adjustable trip circuit breakers

• Earth leakage circuit breakers

• Accessories

Introduction

• The Altech Miniature Circuit Breaker (MCB)/ Manual Motor Controller is a circuit protection device, which is able to protect the wiring and the loads of electrical circuits.

• These MCB’s are a Thermal-Magnetic type circuit breaker.

• The wiring/cabling will be protected from overloads by the MCB’s Thermal part and the loads (motors, heaters, power supplies, etc.) will be protected from short circuits by its magnetic parts.

• NOTE: The Altech MCB can only be used as a “supplementary Protector”. It CANNOT be used as a branch circuit protector (Molded Case Circuit Breaker (MCCB) or UL listed RK5 fuse).

General Specifications• Manual Motor Controller UL 508 Listed suitable for Motor Disconnect Means.

DIN Rail mountable

• Electrical ratings: 0.3A up to 60A, 480Y/ 277VAC

• Interrupting capacity: 10kA (with back-up fuse)

• Group ratings: 5 and 10kA (without circuit branch protection)

• Thermal magnetic type

• Six different trip characteristics:

– B, C, D, E, G, Z – UL, CSA, CE

• 1, 2, 3 pole and 1 & 3 pole plus neutral configurations

• Accessories– Auxiliary Switch (UL508 Listed)– Shunt Trip (UL508 Listed)– Undervoltage Trip

• UL508 Listed Busbar Distribution System

Thermal-Magnetic Principle

Main Current & Arc Current Limiting Path

______________ Main (line) Current Path

---------------- Arc Current Limiting Path

Thermal Principle (Overload Protection)

• The thermal part of the circuit breaker utilizes a bimetallic strip electrically in series with the circuit. The heat generated by the current during an overload deforms the bimetallic strip and trips the circuit breaker.

– Example:• Overload occurs when the vacuum is obstructed and the power cord

gets overheated.

– NOTE: The thermal part of the circuit breaker is temperature sensitive and can be adversely affected by changes in ambient temperature (MCB calibrated at 40° C (104° F) ).

Magnetic Principle(Short Circuit Protection)

• The magnetic part of the circuit breaker consists of an electromagnetic coil and an armature device that opens the movable contact quickly to protect the circuit whenever the current (short circuit current) exceeds a predetermined value. This happens because the current in the coil generates sufficient magnetic flux to attract the armature. Reset is manual and rapid.

– Example:• Short circuit occurs when the hot wire and neutral/ground

accidentally come together.

Trip-Characteristics & Applications

Section AOverload

Section BShort Circuit

Current

Tim

e

Z Y

W

VX

U

Trip-Characteristics & Applications

• This section reflects the protection behavior of the circuit breaker when an overload occurs. Usually the overload increases its value above the rated current slowly.

– The left line shows when the MCB does not trip.

– The right line is the opposite, the MCB must trip!

– The middle black line indicates the “ideal” trip curve. Due to manufacturing tolerances and surrounding influences, the MCB can only be calibrated “around” this line.

Z YSection AOverload

Section A- Overload

Current

Tim

e

Trip-Characteristics & Applications

• This section reflects the protection behavior of the circuit breaker in the case of an inrush current or a short circuit.

– Inrush current occurs when the load is turned on and off (the inrush of a regular motor is approximately 6x the rated current). It is VERY important to know the inrush current when selecting the proper circuit breaker. The time of an inrush is usually between 100-500ms. If the correct circuit breaker is selected it will be insensitive to the inrush current (see points “X” & “W”). The circuit breaker will trip if the current exceeds 16XRC in 100ms (see point “V”).

Section B

Short Circuit

W

VX

U

Section B - Short CircuitCurrentT

ime

Section B - Short Circuit - Continued

– Short Circuit Current is the current which occurs in the case of a hot wire and ground/neutral coming together.

• This current is usually very high (between 300A - 2000A) and the circuit breaker will trip within milliseconds. Note: If the MCB has a rated current of 10A, it will trip in 7ms, if the short circuit current is 400A (see point “U”).

Section B

Short Circuit

W

VX

U

Current

Tim

e

The B-Trip Characteristic

• Applications– Business equipment, wiring protection, lighting, appliances,

control circuits, some motors and some electronic circuits• Available current

– 0.3A-60/63A

CURRENT

TIM

E

The C-Trip Characteristic

• Applications– Low inrush, 3-4x rated current, motors, lighting, wiring

protection, appliances, business equipment, control circuits• Available current

– 0.3A-60/63A

The D-Trip Characteristic

• Applications– High inrush, 10-16x rated current, motors, transformers,

power supplies, heaters, reactive loads• Available current

– 0.3A-60/63A

The E-Trip Characteristic

• Application– High efficiency motors, which have very high inrush,

12x rated current• Available current

– 0.3-60/63A

The G-Trip Characteristic

• Applications– General industrial, including motors, some transformers,

solenoids, control circuits, lighting, wiring• Available current

– 0.3-60/63A

The Z-Trip Characteristic

• Applications– Semiconductors, components with low surge current

and short circuit withstand capabilities• Available current

– 0.3-50A

Summary of Applications/Trip Curve Selection Guide

Summary of Applications/Trip Curve Selection Guide

(Continued)

.

UL 508 Style

• Catalog number will be imprinted on the

Circuit Breaker as shown in the picture to

the left “1BU16” (1 pole, B-Trip

characteristic, UL Type, 16 A).

UL 1077/ UL 508 Comparison

• UL1077– MCB can only be used by UL certified/ approved panel shops– MCB is only “recognized”, which means the entire panel consisting of

recognized components needs additional approval by a UL inspector• UL508

– MCB is “listed”– Every Licensed Electrician can use the MCB, not only a UL Panel Shop– Manual Motor Controller is suitable for motor disconnect

– Tested for these applications:– AC Motor Starting, Across the line– AC General use– AC Resistance– AC Discharge Lamps (Ballast)– AC Incandescent Lamps (Tungsten)

Competitors (V-EA, MA Circuit Breakers)

• Crossable in fit, form and function-> DIN Rail mountable, European style, Thermal-Magnetic MCB.

– ABB (S230-S280 series)– AEG System (ELFA series)– Airpax (IELR series)– Allen-Bradley (1492-MCB series) = Weber(AS 168

series)– Carlingswitch (D-Series)– Cutler - Hammer (SPCL - series)– ETA (42-01 series & 91 series)– GE (V-Line series)– Klöckner - Möller (FAZ-series)– Phoenix (TMC series)– Siemens (5S-series)– Square-D (Merlin Gerin multi 9 series)– Square-D Telemacenique (GB 2-MCB series, etc.) – Weidmüller (MCB series)

• Only crossable if customer is able and willing to change panel/circuit design

– Eaton/Heinemann– IDEC– Potter & Brumfield

Target Customers

• Panel shops

• Machine manufacturers which provide complete packages

• Any industrial plant

• Licensed electricians/ contractors

Why Altech?

• UL 508 LISTED

• High Quality

• Complete line with the most various trip characteristics to meet all application needs

• Most circuit breakers in stock

• Price competitive in 10KA versions

• One source can provide almost complete power distribution solutions (busbars, terminal blocks, enclosures, etc.)

MA Three Phase Adjustable Trip Miniature Circuit Breaker

UL508 listed

CAN/CSA-C22.2 No. 14 certifiedC

MA Three Phase Adjustable Trip

Miniature Circuit Breaker

• General Specifications

– Complies with various national and international standardse.g. UL, CSA, VDE, IEC, CE

– DIN Rail mountable– Adjustable thermal trip allows finalization of initial designs before

procurement of the load equipment is complete– Voltage rating: 480Y/277 V AC– Rated current from 0.16A - 40A– 3 poles

• Accessories available (same as V-EA MCB)– Auxiliary Switch– Shunt Trip– Undervoltage Trip

The MA was designed to handle the high inrush loads of 3 phase transformers, power supplies, motors, etc.

V-EA and MACircuit Breaker Accessories

Accessories can be factory or field mounted on V-EA miniature

circuit breakers and MA motor protection switches for enhanced

control and monitoring capabilities. Field mounting kits include

all necessary parts and instructions. Accessories can be gang

mounted on a single breaker (the Auxiliary Switch in the outside

position). The mounting arrangement links the internal latch-

pins for the tripping mechanisms, ensuring simultaneous trips.

Handles are linked to simplify manual resetting.

Remote Trip-Shunt Trip

FA

• Coil actuated, the FA Shunt Trip allows electrical remote tripping of a breaker. It is trip-free and the housing and terminal specifications are the same as for V-EA miniature circuit breakers.

• The Shunt Trip contains its own contacts which break the tripping power circuit when tripped. It is available with trip-coils in the most standard control voltages.

Undervoltage Trip

UA• Reset-Hold Voltage = 0.85 x Ve

• Drop-Out Voltage = 0.35 to 0.7 x Ve

Re-power your system under controlled conditions following a power loss or serious undervoltage. Altech UA Undervoltage Trips are coupled to the tripping latch pins of the V-EA or MA to which they are attached, reliably producing trips at the drop-out voltage and preventing resetting when less than 85% line voltage is present. The Undervoltage Trip is provided with at least 6-inch pigtails of stranded fixture wire for hook-up to the V-EA or MA line terminals.

Auxiliary Switch

• Altech H Auxiliary Switch is suitable for logic interrogation

and for use as a two-circuit Form C contact. It can also

function as an auxiliary switch for control circuits.

H11U

More Accessories

FI Earth Leakage Circuit Breakers

• FI compact Earth Leakage Circuit Breakers detect and interrupt earth (ground) faults. They are VDE approvedfor the European system of protecting people, animals, equipment and property from dangerous line-to-ground and shock hazard currents.

– For example:• The insulation of shockproof equipment or their leads is

defective.

• The earth wire is interrupted.

• Earth wire and live wire have been transposed accidentally, thus rendering live the body of a protection Safety Class I device.

• A component which is live in normal operation is touched during repairs.

Continued

• General Specifications– DIN Rail mountable– Voltage rating: 415Y/240VAC– Maximum rated line current from portable power supply 16A - 63A– Fault Trip current from 10mA - 300mA

• Fault Trip Current Calibration– FI trips are calibrated at less than fault trip current for ensured safety

(Typical trip range between 66.6-83.3% fault trip current, e.g. typicaltrip at 20-25mA for fault RC of 30mA)

FI 2 FI 4

Principle of Operation

• In the event of a short to earth, the residual current operated system prevents shock-hazard voltages from remaining on the body of Safety Class I electrical equipment or machines. For this purpose, the FI Earth Leakage Circuit Breaker monitors the difference between loads flowing through it and ensures that is approximately zero. If, as a result of an earth fault, this difference exceeds the circuit breaker’s residual operating current rating, then the FI will disconnect the faulty equipment.

Fault Current Circuit

Residual Current Circuit

Busbar Distribution System

• The Altech Busbar Distribution System is an innovative way to jumper up to 57 poles of Altech Miniature Circuit Breakers (MCB)/ Manual Motor Controllers (MMC).

• Advantages:– Installation time savings– Panel space savings– Little or no maintenance– High electrical ratings– Busbars maintain UL approval, even after being cut

Busbar Distribution System

Busbar Ordering Information

Busbar Ordering Information

Power Feed Devices

Assembly

Two Power Feed Methods