Ge-industrial-solutions 300_400 Line NEMA size 0 & 1 Manuel d'utilisateur télécharger pdf

Max.Hp

For AC Motors

Starter

Max

Current

Rating

Contactor

Max.

Current

Rating

Volts

Single-

Phase

Poly-

Phase

Size 0

115 1 -

200 - 3

230 2 3

18 amp

(open

and

enclosed)

20 amp

(open)

18amp

(enclosed)

460—575

- 5

Size 1

115 2 -

200 - 7½

230 3 7½

27 amp

(open

and

enclosed)

30 amp

(open)

27amp

(enclosed)

460—575

- 10

Note:

For starters with one or more

normally closed contacts, perform steps

1 and 2 shown under Coil Replacement.

Withdraw spring clip (B—Figure 1) and

remove armature, coil, and magnet from

device. Remove return spring from center

of movable arm. Remove molded cover

and stationary contacts before lifting

movable arm from device.

Normally Closed

Contacts

The contacts may be converted from

normally open to normally closed with no

additional parts. Perform steps 1 through

4 shown under Coil Replacement. Lift coil

and magnet from movable arm. Remove

return spring from center of movable

arm. Depress movable contact spring

and spring seat against movable contact

and rotate these parts 1/2 turn without

removing them from window. Remove

the stationary contacts. Install the

movable arm in the device. Install the

stationary contacts so that their silver

pads face the movable contact silver

pads. Reassemble the device. To change

contacts from normally closed to

normally open position, reverse the

above procedure.

Check For Welded C

ontacts In

Overload Relay

With power disconnected, disconnect

the control wiring from the relay

terminals. Place a bell set or resistance

measuring instrument across relay

terminals. Depress and release reset

arm to insure relay is reset

Remove screws holding stationary

contacts in place and remove stationary

contacts.

7. Reassemble device by reversing

procedure.

Combination

Magnetic Starters

CR307-CR308, CR310-CR311, CR387, CR390, CR407-CR408

CR410-CR415, CR487, CR490, CR492, CR494 Series

Motor branch circuit and control circuit

over-

current protection should be

supplied in accordance with the

National Electrical Code. CR305

contactors are suitable for use on a

circui

t capable of delivering not more

than 5,000 RMS symmetrical amperes,

600 volts maximum when protected by

H, J, K1, K5, RK1, RK5 class fuses, or a

circuit breaker having an interrupting

rating not less than 5,000 RMS

symmetrical amperes.

Installation

Before connecting controller to power

supply:

1. Remove all packing.

2. Clean magnet mating surfaces of any

dirt or foreign matter.

3. Select and install heaters in accordance

with heater table.

Operate movable magnet and operating

arm by pressing on the nameplate to

assure free movement.

5. Mount on a sturdy vertical support.

6. Make the electrical connections.

7. The starter overload relay may be reset

manually by depressing and releasing the

reset arm.

Coil Replacement

1. Remove power from device.

2. Press against coil while pulling up

slightly on coil retainers (A—Figure 1) and

move retainers away from coil.

3. Withdraw magnet assembly, coil,

molded cover, and movable arm from

device.

4. Withdraw spring clip (B—Figure 1) and

remove armature from movable arm.

5. Remove coil from magnet.

6. Replace coil.

7. Reassemble device by reversing

procedure.

Contact Replacement

1. Perform steps 1 through 5 under

Coil Replacement.

2. Remove magnet f

rom molded cover

and movable arm.

3. Remove return spring from center

of movable arm.

4. Remove molded cover from

movable arm.

Depress and slide movable contact

and spring from movable arm.

Instructions F

NEMA size 0 & 1

Supersedes GEH-4793B

& GEH4796B

GEH

5193 Instruction

CAUTION:

Bef

ore installing in a nuclear

application, determine that the product is

intended for such use.

WARNING

Disconnect power

before Installing or servicing.

Description

General Electric 300/400-Line full-

voltage

motor starters include a magnetic

contactor and a three-

leg block overload

relay, providing motor protection against

running and stalled motor overloads. The

overload relay is provided with a yellow

trip indicator located to the right of the

reset arm, and is visible when the

overload relay is tripped

Ratings

—

600 V Maximum

Figure1.Ty

pical 300/400

Line magnetic starter

Figure2

1 2

Combination 1
Magnetic Starters 1

Résumé du contenu

Page 1 - Magnetic Starters

Max.Hp For AC Motors Starter Max Current Rating Contactor Max.

Page 2

60 Hertz 115- 120V 200- 208V 230-240V ---- 460-480V 575-600V 50 Hertz 110 ----- 220V 380V 440V 550V Coil Suffix 002

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Ge-industrial-solutions 300_400 Line NEMA size 0 & 1 Manuel d'utilisateur

Naviguer en ligne ou télécharger Manuel d'utilisateur pour Équipement Ge-industrial-solutions 300_400 Line NEMA size 0 & 1. GE Industrial Solutions 300_400 Line NEMA size 0 & 1 User Manual Manuel d'utilisatio

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