Control_Flippingbook_July 2024

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NEMA FULL VOLTAGE POWER DEVICES, CONTROL SECTION 1

— CR305, CR385 magnetic contactors Factory-installed modifications

Contactor modifications — factory installed Factory-installed modifications are available for those contactors as indicated in the tables. Shown here are the additions to standard product listed forms. For field modification kits see pages 1-186 to 1-190. Supplying combinations of these items may affect standard enclosure dimensions and type of construction. In extreme instances, it may not be possible to furnish all of them within the limitations of a contactor design.

Type of installation/ contactors

Item no.

Enclosure type

Modifications Push buttons

1

–

Pilot devices mounted in cover or flange of CR305

1a 1b 1c 1d 1e

Start-stop 1

1 1

Off-on 1

Start-stop (heavy-duty, CR104P)

Any Any

Start push button and H-O-A selector switch (heavy-duty, CR104P) Single push button, unwired (specify marking) (heavy-duty, CR104P) Single push button, unwired (specify marking) (heavy-duty, CR104P) Single illuminated push button, unwired (specify marking) (heavy-duty, CR104P)

1

Any Any

1f

2

Selector switches H and-off-auto 1,3

–

1

2a

H and-off-auto 1,3 (heavy-duty, CR104P)

Any

1

2b

Off-on 1

Off-on (heavy-duty, CR104P)

Any

2c

Single selector switch maintained (specify marking)

–

Two- or three-position (specify position) 4 (heavy-duty, CR104P)

Any Any

Four-position 4 (heavy-duty, CR104P)

2d

Key operated maintained (specify marking and key-removal position)

–

Two- or three-position 4 (heavy-duty, CR104P)

Any Any

3

Nonstandard markings (specify)

1 Factory-installed modification kit for sizes 00-5. 2 Not available in NEMA size 00. Use Size 0 starter and modification. 3 This modification not available with items 1a, 1b or 1c because stop push button would not work in auto position; instead order modification 1d. 4 Specify CR104 operator and contact block by product number.

— Reference publications

Instructions NEMA size

Publication number 1SQC912006M0201 1SQC912001M0201 1SQC912003M0201 1SQC912004M0201 1SQC912028M0201 1SQC912029M0201

00, 0, 1

2 3 4 5 6