SE Digest 178

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All Limit Switch Types Refer to Catalog 9006CT1007

Current Ratings

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Contact Configurations

Contact Configurations —Direct opening contacts meet IEC 60947-5-1 requirements. For contacts used in safety applications (end of travel, emergency stop device, etc.) the asurance of direct opening is required (see IEC 204, EN 60204, or NF C 79–130) after each test. The opening of the contact must be verified by testing with an impulse voltage (2500 V). Table 21.7: Maximum Current Ratings for Control Circuit Contacts—All Types

AC—50 or 60 Hz

DC

AC/DC

Direct Opening Contacts Meet IEC 60947-5-1 Requirements

Resistive 75% Power Factor Makeand Break Amperes

Inductive 35% Power Factor

Inductive and Resistive Make and Break Amperes Single Pole Double Pole

Switch Type

Continuous Carrying Amperes

Contacts

V

V

Make

Break

A

VA

A

VA

2400 3000 3000 3000 720 720 360 360 720 720 720 720 720 720 720 720 720 720 720 720 720 720 360 360 720 720 360 360 360 360 360 360 720 720 360 360 360 360 720 720 720 720 720 720 720 720 720 720 720 720 720 720 720 720 1800 2400 2880 3000 1800 2400 2880 3000 2400 3000 3000 3000

20 12.5 6.25 5

18000 18000 18000 18000 7200 7200 3600 3600 7200 7200 7200 7200 7200 7200 7200 7200 7200 7200 7200 7200 7200 7200 3600 3600 7200 7200 3600 3600 3600 3600 3600 3600 7200 7200

150 75 37.5 30

120 240 480 600 120 240 120 240 120 240 480 600 120 240 120 240 120 240 120 240 120 240 120 240 120 240 120 240 120 240 120 240 120 240 120 240 480 600 120 240 480 600 120 240 480 600 120 240 480 600 120 240 480 600 120 240 480 600 120 240 120 240 120 240 480 600 120 240 480 600

6 3

125 250 600 — 125 250 125 250 125 250 600 — 125 250 125 250 125 250 125 250 125 250 125 250 125 250 125 250 125 250 125 250 125 250 125 250 600 — 125 250 600 — 125 250 600 — 125 250 600 — 125 250 600 — 125 250 600 —

1.1 0.55 0.2 — 0.55 0.27 0.22 0.11 0.55 0.27 0.55 0.27 0.55 0.27 0.55 0.27 0.55 0.27 0.55 0.27 0.22 0.11 0.55 0.27 0.22 0.11 0.22 0.11 0.22 0.11 0.55 0.27 0.5 0.25 0.05 — 0.1 —

SPDT with 2 or 3 Contacts FormZ

—

20/5

L100/L300

No

1.5 1.2

XCKD 2Contacts XCKD 3Contacts

60 30 30 15 60 30 15 12 60 30 60 30 60 30 60 30 60 30 30 15 60 30 30 15 30 15 30 15 60 30 40 20 10 8 40 20 10 8 30 15 60 30 15 12 60 30 15 12 60 30 15 12

6 3

6 3

SPDT Form Zb

Yes

—

10/2.5

3 1.5

3 1.5

3 Pole Form Zb

Yes

—

5/1.0

6 3

6 3

SPDT FormZ 2SPDT FormZZ

No

—

10 10 10

XCKJ Plug-in

1.5 1.2

1.5 1.2

No

—

6 3 6 3 6 3 6 3 6 3

6 3 6 3 6 3 6 3 6 3

10/2.5 10 10/2.5 10

SPDT Form Zb

Yes

—

XCKJ Non-plug-in

—

2 SPDT Form ZZ

No

SPDT FormZb

Yes

XCKL

—

10

XCKN

2Pole

Yes

—

10/2.5

XCKP 2Contacts XCKP 3Contacts XCKT 2Contacts XCKT 3Contacts XCMD 2-4 Contacts XCMN 2Contacts

SPDT Form Zb

Yes

—

10/2.5

3 1.5

3 1.5

3 Pole Form Zb

Yes

—

5/1.0

SPDT FormZb

6 3

6 3

Yes

—

10/2.5

3 1.5 3 1.5 3 1.5

3 1.5 3 1.5 3 1.5

3 Pole Form Zb

Yes

—

5/1.0

2,3 or 4 Pole FormZb

Yes

—

5/1.0

SPDT FormZb

Yes

—

5/1.0

6 3

6 3

XCNR

2Pole

Yes

—

10/2.5

SPST, Form X or Y (rated 0.5 hp @ 110 and 200 Vac) SPDT, Form Z SPST, Form X or Y (rated 0.5 hp @ 110 and 200 Vac) SPDT, Form Z

4800 4800 4800 4800 4800 4800 4800 4800 3600 3600 3600 3600 7200 7200 7200 7200 7200 7200 7200 7200 7200 7200 7200 7200 7200 7200 7200 7200

15 10

15 10

0.25 0.1

9007AO1, AC

No

15

6 5

6 5

— —

15 10

15 10

2.0 0.5 0.1 — 1.0 0.3 0.1 —

0.5 0.2 0.02 —

9007AO2, AO6, AB, AP 9007CO3, CO6, CB,CC, CP

No

15

6 5

6 5

DPST Form AA or BB DPDT FormZZ

3 1.5 0.75 0.6

3 1.5 0.75 0.6

0.2 0.1 — —

No

10

7.5 6

6 3

6 3

0.55 0.27 0.1 — 0.55 0.27 0.1 — 0.22 0.11

SPST FormY1561 Slowbreak

Yes

—

10/2.5

1.5 1.2

1.5 1.2

6 3

6 3

0.22 0.11

SPDT FormZ

9007C

No

10/2.5

1.5 1.2

1.5 1.2

— —

6 3

6 3

0.22 0.11

DPDT FormZZ SPDT FormC SPDT FormZ

No

10/1.0

1.5 1.2 6.0 3.0 6.0 3.0

1.5 1.2

— —

— — —

10 (AC) / 5 (Res. @ 28 Vdc) 10 (AC) / 5 (Res. @ 28 Vdc)

60.0 30.0 60.0 30.0 150 75 37.5 30

9007MS

No

—

— —

9007ML

No

—

— —

—

SPDT QuickMake andBreak FormZ All SlowMake andBreak FormZ

18000 18000 18000 18000

20 12.5 6.25 5

20 12.5 6.25 5.0

125 250 600 —

5.0 1.0 0.2 —

No

—

20

9007T and FT

720 720 720 720

6 3

7200 7200 7200 7200

6 3

60 30 15 12

No

— —

—

20

1.5 1.2

1.5 1.2

Electrical Symbols For Contacts

Form Za: the 2 contacts are the same polarity.

Form Zb: the 2 contacts are electrically separate.

Symbols for Direct Opening

Simplified Version

Complete symbol NOTE: Alternate Current Ratings—Several product lines offer special versions or options with alternate contact configurations or contact materials, which may result in current ratings that differ from those listed above. Refer to the respective product sections for further information.

21 LIMIT SWITCHES

21-5

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8/17/2020

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