Directed Electronics PS-3655E-FM Spezifikationen PDF herunterladen (Seite 29)

DE3

CIRCUIT BREAKERS

01/15

DE3-29

Motor Circuit Protectors and Motor Protector Circuit Breakers

PowerPact™ H- and J-Frame

Standard

Energy Efficient

Energie Efficace

Energia Eficiente

Standard

Energy Efficient

Energie

Efficace

Energia Eficiente

Standard

Energy Efficient

Energie Efficace

Motor Type / Tipo de Motor / Type de Moteur

Energia Eficiente

PowerPact H- and J-frame electronic Motor Circuit Protectors (MCP) are magnetic-only

instantaneous-trip circuit breakers. They are designed to offer short circuit protection and

are Canadian Electrical Code (CEC) and National Electrical Code (NEC) compliant when

installed as part of a combination controller having motor overload protection. MCP circuit

breakers accept the same accessories and terminals as the equivalent thermal-magnetic

circuit breakers.

Determine the hp rating from the nameplate of the motor. Select a MCP with an ampere

rating recommended for the hp and voltage involved. When using the automatic settings the

MCP microprocessor automatically adjusts the trip settings for both current and time to

align with the start-up characteristic for the motor type, whether it is a standard or energy-

efficient motor. This includes a dampening means to accommodate a transient motor in-

rush current without nuisance tripping of the circuit breaker.

H- and J-frame Electronic Motor Circuit Protectors (MCP)

Frame Current

Full Load

Amperes Range

Adjustable

Instantaneous Trip

Range

Suffix

J Interrupting

(See SCCR Table

Below)

L Interrupting

(See SCCR Table

Below)

Cat. No. Cat. No.

H-frame

30 A 1.5–25 A 9–325 A M71 HJL36030M71 HLL36030M71

50 A 14–42 A 84–546 A M72 HJL36050M72 HLL36050M72

100 A 30–80 A 180–1040 A M73 HJL36100M73 HLL36100M73

150 A 58–130 A 348–1690 A M74 HJL36150M74 HLL36150M74

J-frame 250 A 114–217 A 684–2500 A M75 JJL36250M75 JLL36250M75

Maximum Rating or Setting of Motor Protective Devices▲

Type of Motor

Percentage of Full-load Current

Setting Not to Exceed ■

A, B, C, D Standard 800% 1300%

B, E Energy Efficient 1100% 1700%

▲ Based on 2005 NEC Table 430.52.

■ See NEC Exception No. 1 to Table 430.52. The NEC 1300% maximum setting may be inadequate for instantaneous

trip

circuit

breakers to withstand current surges typical of the magnetization current of autotransformer type reduced

voltage starters, or open transition wye-delta starters during transfer from “start” to “run,” constant hp multi-speed

motors, and motors labeled “high efficiency.”

MCP Selection by HP Ratings◆ of Induction-type Squirrel-Cage and

Wound-rotor Motors★

3Ø 60 Hz Voltages▼

Full-Load Amperes Suffix

200 Vac 230 Vac 460 Vac 575 Vac

.5–5 .5–7.5 .75–15 1–20 1.5–25 M71

5–10 5–15 10–30 15–40 14–42 M72

10–25 15–30 25–60 30–75 30–80 M73

20–40 25–50 50–100 60–125 58–130 M74

40–60 50–75 100–150 125–200 114–217 M75

◆ Based on 2005 NEC Table 430.250.

★ Per NEC 430.3, part-winding motors should select two circuit breakers, each at not more than one-half the allowable

trip

setting

for the horsepower rating. The two circuit breakers should operate simultaneously as a disconnecting

means per NEC 430.103.

▼ Listed voltages are rated motor voltages. Corresponding system voltages are 200 Vac, 220–240 Vac, 440–480 Vac

and 550–600

Vac. Select wire and circuit breakers based on horsepower rather than nameplate full-load current per

NEC 430.6 (A) for general motor applications.

Short Circuit Current Rating (SCCR)

Tested to meet NEC and UL508A requirements for short circuit current ratings as part of an

approved combination controller.

Short Circuit Current Ratings (SCCR)

Contactor/Starter

J Interrupting L Interrupting

200–240 Vac 480 Vac 600 Vac 200–240 Vac 480 Vac 600 Vac

Tesys D-line and F-line 100 kA 65 kA 25 kA 125 kA 100 kA 50 kA

NEMA Type S 100 kA 65 kA 25 kA 125 kA 100 kA 50 kA

Accessories .........................................PageDE3-39

Optional Lugs .......................................P

ageDE3-42

Dimensions .........................................P

ageDE3-55

Enclosures..........................................P

ageDE3-56

Class 611 / Refer to Catalog 0611CT1001

DE3_p029.fm Page 29 Saturday, January 10, 2015 2:27 AM

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