Control Catalog Flippingbook

NEMA FULL VOLTAGE POWER DEVICES, CONTROL SECTION 1

1-198

— CR305, CR385 magnetic contactors Factory-installed modifications

Contactor modifications—factory installed The general information at the top of page 1-197, regarding factory-installed modifications, also applies to those listed in the tables below.

Type of Installation/ Contactors

Item No.

Enclosure Type

Modifications

–

4

Indicating Light 1 One (Red Only) 2

1

4a 4b 4c 4d 4e

Pilot Devices Mounted in Cover or Flange of CR305

One (Specify Red or Green) (HEAVY-DUTY, CR104P)

Any Any Any

Two (Includes 1 NC Auxiliary Contact) 4 (HEAVY-DUTY, CR104P) One Push-To-Test and/or Transformer Type (Red or Green)

Two Push-To-Test (Includes 1 NC Auxiliary Contact) and/or Transformer Type 4 Any 1 One indicating light: Wired in parallel with operating coil. Two indicating lights: Red is wired in parallel with operating coil, green is wired through an auxiliary contact. 2 Factory-installed field modification kit for sizes 00-4 and size 5 without CPT.

3 Not available in NEMA Size 00. Use Size 0 contactor modification. 4 Maximum of three additional auxiliary contacts available on size 0-1.

Type of Installation/ Contactors

Item No.

Enclosure Type

Modifications

Separate Control Circuit (Specify Voltage and Frequency, Reference Items 13a and 13b for Standard Voltages)

8

Any

9

Fused Control Circuit—Two Fuses

Any

Control Transformer—Standard Capacity, 50 or 60 Hertz 2 Two Primary and One Fuse Secondary, (Specify Voltage Rating) Standard Voltages at 60 Hertz

220-230-240 Primary, 110-115-120 Secondary 440-460-480 Primary, 110-115-120 Secondary 550-575-600 Primary, 110-115-120 Secondary 200-208 Primary, 115-120 Secondary

10

Any

Control Circuit in CR305

11 12 13

Control Transformer—100 VA Additional Capacity, 60 Hertz

Any

–

– –

Operating Coil

Standard Voltages at 60 Hertz: 24, 115-120, 200-208, 230-240, 460-480, 575-600

Any Any Any

13a 4 13b 13d

Standard Voltages at 50 Hertz: 110, 220, 380-415, 440, 550

DC—Standard Voltages: 24, 115-125

1 Not available in NEMA Size 00. Use size 0 contactor modification. 2 The National Electrical Code, Article 450-3(B), requires primary fuses in most typical installations. Refer to the NEC, Article 450 prior to ordering control transformer without primary fuses to insure compliance. Control circuit fuse kits from page 1-206 may be used to provide primary fusing. Fuses must be sized to meet the requirements of the NEC according to the table below. 3 Not available in NEMA Sizes 00 or 0. Use Size 1 contactor modification. 4 24V coil not available on size 5 and 6.

Recommended fuse

Primary Voltage 208/240

CPT VA

480

600

50

1 2 3 5 6

0.5

0.5

100 150 250 300

1

0.75

1.5

1 2 2

2 3