MA40U ALTECH [Altech corporation], MA40U Datasheet

MA40U

Manufacturer Part Number

MA40U

Description

Three Phase Adjustable Trip Miniature Circuit Breakers/ Manual Motor Controllers

Manufacturer

ALTECH [Altech corporation]

Datasheet

1.MA40U.pdf (3 pages)

Current page: 1 of 3
Download datasheet (223Kb)

MA- Series

Three Phase Adjustable Trip

Miniature Circuit Breakers/

Manual Motor Controllers

The MA was designed to handle the high

inrush loads of 3 phase transformers,

power supplies, motors, etc. The MA

protects wiring and equipment from

damage caused by the three major

classes of over-current, yet greatly reduc-

es the number of nuisance trips in high

starting and inrush current circuits.

An IEC device with excellent ratings under

a UL listing at 480Y/277V (including group

ratings) and at 500V under international

standards, the Altech/ABL Sursum MA

provides short and long term cost effective

circuit protection for USA and/or export

applications. The short term advantages

include: (1) adjustable thermal trip allows

finalization of initial designs before

procurement of the load equipment is

complete; (2) snap-on mounting for readily

available, internationally standardized DIN

Rail saves panel layout design time as well

as installation and change labor; (3) large

cage-clamp terminals with screws suitable

to power screwdrivers, simplifies and

speeds wiring; (4) convenient switched

disconnect during factory testing and/or

initial start-up saves time and aggravation.

The key long term advantage is customer

satisfaction and proven over-current pro-

tection of wiring and equipment (and the

lack of rework/repair costs).

Note: HEA - Horsepower Equivalent Amperes, the nominal amperage assigned to standard motor horsepower ratings in design guide tables such as

NFPA-70 Tables 430-248, 430-249, 430-250; UL1077 Table 16.2; CSA - C22.2 No. 235-M89 Tables 44 and 45; CSA-C22.2 No. 14-M91 Table 19, etc. Multiply

HEA values (in parenthesis) by 1.1 if power factor is 90%, and by 1.2 if power factor is 80%.

a The standard-circuit short-circuit rating is 14kA for all types. Group ratings can be used in a standard circuit (e.g., MA1.0U at 42kA), but a higher

MA0.16U

MA0.25U

MA0.40U

MA0.63U

MA1.0U

MA1.6U

MA2.5U

MA4.0U

MA6.3U

MA10U

MA16U

MA20U

MA25U

MA32U

MA40U

standard rating cannot be used in a group circuit (e.g., MA40U at 14kA only in standard circuit.)

Type and

Current

Rated

Altech Corp.

15.901U

15.902U

15.903U

15.904U

15.905U

15.906U

15.907U

15.908U

15.909U

15.910U

15.911U

15.912U

15.913U

15.914U

15.915U

Cat. No.

• 35 Royal Road • Flemington, NJ 08822-6000 • Phone (908)806-9400 • FAX (908)806-9490 • www.altechcorp.com

0.16/0.19/0.22/0.25

0.25/0.30/0.35/0.40

0.40/0.48/0.56/0.63

0.1/ 0.12/0.14/0.16

0.63/0.75/0.87/1.0

1.0/1.2/1.4/1.6

1.6/1.9/2.2/2.5

2.5/3.0/3.5/4.0

4.0/4.8/5.6/6.3

6.3/7.5/8.7/10

16/17/18.5/20

20/21.5/23/25

Adjustment

10/12/14/16

25/27/30/32

32/34/37/40

Markings

FLA Dial

Voltage Rating

AIC (Interrupt Capacity)

Standard Short Circuit Withstand Rating

(UL/CSA Ratings)

Group Short Circuit Ratings

(UL/CSA Ratings)

Typical Life

Calibration Temperature

Standard Pack and Weight

Terminal Size Acceptability

Type Designation

(a)

(a) = MA - Manual Motor Controller

(b) = Rated Current

(d) = Blank - Standard Terminal

CIRCUIT RATING

GROUP SHORT

(and BCP size)

RT - Ring-tongue Terminal

(max. 1200A

AT 480VAC a

symmetrical

(max. 350A

(b)

42kA

14kA

10kA

or RK5)

MCCB

RMS

(c)

(d)

HP (HEA)

110-120V

1/2 (4.0)

3/4 (5.6)

3Ø HORSEPOWER RATINGS AT NOMINAL LINE VOLTAGE

Through MA2.5U, ampere rated for motor circuits having a full-

load-amperage (FLA) not exceeding the MA’s general purpose

rated current (RC, equals maximum dial setting) and a locked

rotor current not exceeding 6 times the MA’s RC.

(13.6)

(19.2)

(30.4)

(7.2)

3/4 (3.2)

10 (32.0)

HP (HEA)

3 (11.0)

5 (17.5)

1/2

200V

(25.0)

(See Note for HEA Definition)

(6.0)

(7.8)

480Y/277VAC

0.16A-2.5A: 42kA; 4.0A-16A: 14kA; 20A-40A: 10kA

0.16A-2.5A: 42kA; 4.0A-16A: 14kA

see above

6000 on/off operations with 2xRC

25°C, +0°, -5° (77°F, +0° -9°)

1/450g (1.0 lb.)

Top/Bottom: 18-3 AWG

3/4

HP (HEA)

1/2

208V

(10.6)

(16.7)

(24.2)

(31.0)

(3.1)

(5.7)

(7.5)

CAN/CSA-C22.2 No.14 certified

UL508 listed

E137938

220-240V

HP (HEA)

1/2

(15.2)

(22.0)

(28.0)

(3.6)

(5.2)

(9.6)

460-480V

HP (HEA)

(3.42)

(14.0)

(21.0)

(27.0)

(34.0)

(4.8)

(7.6)

Related parts for MA40U

MA40U Summary of contents

Page 1

... HEA values (in parenthesis) by 1.1 if power factor is 90%, and by 1.2 if power factor is 80%. a The standard-circuit short-circuit rating is 14kA for all types. Group ratings can be used in a standard circuit (e.g., MA1.0U at 42kA), but a higher standard rating cannot be used in a group circuit (e.g., MA40U at 14kA only in standard circuit.) Altech Corp. ...

Page 2

... Multiple of Dial Setting (Thermal) Multiple of Rated Current (Magnetic Trip) Rated Current = Max. Dial Setting MA20U-MA40U MA 3 Phase Controller Thermal Overload ( “Must Trip” Current = 115% of Dial Setting “Must Not Trip” > 105% of Dial Setting Magnetic Trip Nominal 1100% of Rated Current 11 ...

Page 3

V-EA and MA Accessories can be factory or field mounted on V-EA and MA manual motor controllers for enhanced control and monitoring capabilities. Field mounting kits include all necessary parts and instructions. Accessories can be gang mounted on a single ...

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