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.
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