Control Catalog Flippingbook

1-199

NEMA FULL VOLTAGE POWER DEVICES, CONTROL SECTION 1

— 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 1, 3R, 12 4/4X 1, 3R, 12 4/4X

Modifications

Control Relay, Four-Pole (Convertible) Unwired (Specify Coil Voltage)

14 1

Time-Delay Relay, Unwired, Pneumatic—1 to 60 Seconds, 1 NO-1 NC (Specify TDD or TDE and Coil Voltage) 3 Timing Relay, Motor Driven, Unwired (Specify Voltage & Timing Range) 3 Phase Loss, Phase Reversal, Three-Phase, Undervoltage Relay (Starting & Running Protection, Specify Voltage)

Auxiliary Relays Mounted In CR305

15 1

Any

16 1

Any

17 1

Magnetic Contactor (Specify Number of NO or NC) — Single Speed, Nonreversing:

Four Maximum, Sizes 0, 1 Five Maximum, Size 2-6

Auxiliary Contacts Mounted In CR305

Reversers and Two-Speed, Two Winding: Two Maximum, Per Contactor, Sizes 0-6 Two-Speed, One Winding: One on Left Contactor, Two on Right Contactor, Size 0, 1 Two Maximum Per Contactor, Sizes 2-6

19 1

Any

1 NEMA Type 1 enclosures require oiltight pilot devices when this modification is used with NEMA Contactor sizes 0, 1, and 2. Only oiltight pilot devices will fit the oversized enclosure required. 2 Not available in NEMA Size 00. Use Size 0 contactor modification. 3 Requires 100 VA extra capacity control transformer.

Type of Installation/ Contactors

Item No.

Enclosure Type

Modifications

1, 3R, 12 4/4X

Metering Mounted In CR305

27

Elapsed Time Meter

Space Heater 2 50 Watts—NEMA Size 0-4 Contactor/Starter 100 Watts—NEMA Size 5 Contactor

Enclosure CR305

Any

30

31 32 33 34 35

Operating Coil Surge Suppressor (120 V/60 Hz)

Any Any Any Any Any

Insulated Neutral Lug

Misc.Mounted On CR305

Ground Lug

Terminal Block, (Product Number CR151B) 30A, Unwired (per point) (Specify Points)

Power Factor Correction Capacitor Terminals

1 Not available in NEMA Size 00. Use Size 0 contactor modification. 2 If connected to control circuit transformer, 115-Volt heater requires an extra capacity transformer for Size 0-1 and Size 5.