SE Digest 178

30 mm Push Buttons

Type K, SK and KX Electrical Components

Class 9001 / Refer to Catalog 9001CT1103

www.se.com/us

Square D Offering According to Class, Division, and Group Table 19.276: Square D Offering According to Class, Division, and Group For Use Class Division Group(s) I 1 A 1. Intrinsically Safe System I 1 B,C, D 1. 9001 BR station 2. Intrinsically Safe System I 2 A 1. 9001 K, SK, KX control stations with restrictions [128] [129] 2. Intrinsically Safe System

Hazardous locations do not always require the use of explosion-proof equipment like the Class 9001 Type BR control stations. Selecting the most appropriate device for the location can save you money. For more information on the types of hazardous locations, contact your local electrical inspector.

1. 2. 3. 1. 2. 1. 2. 3. 1. 2. 3. 1. 2. 3.

9001 BR station

9001 K, SK, KX control stations with restrictions [128] [129]

B,C, D

I

2

Table 19.275: Hazardous Locations Types K, SK File: E10054 (N) CCN:NOIV

Intrinsically Safe System

File: LR26817 Class: 3218 02

9001 BR station

E, F,G

II

1

Intrinsically Safe System

9001 BR station

9001 K, SK, KX control stations with restrictions [128] [129]

E, F

II

2

Intrinsically Safe System

9001 BR station

9001 K, SK, KX control stations with restrictions [130] [129]

II

2

G

Intrinsically Safe System

9001 BR Station

9001 K, SK, KX control stations with restrictions [130] [129]

1, 2

III

—

Intrinsically Safe System

Hermetically Sealed Logic Reed Contact Blocks Table 19.277: Hermetically Sealed Logic Reed Contact Blocks [131] [132] Suitable for use on low energy level circuits Description Symbol

Type [133]

KA41

The maximum number of logic and/or power reed contact blocks per operator is as indicated on individual selection tables for standard contact blocks, except : • On 3 position selector switches with cams C, D, E, F, G, L, or M, mount reed blockson one side only (either side), maximum 2 in tandem. • On 4 position selector switches, mount reed blocks on one side only (either side), maximum 2 in tandem. • On joysticks or on Type KR8 or SKR8 push-pull operators, mount reed blocks on one side only (either side), maximum 2 in tandem.

KA42

KA43

KA44

KA45

Maximum Load

Max. Vac/Vdc

Resistive

Inductive

Continuous

19 PUSH BUTTONS AND OPERATOR

32/30

.25A 8VA

.10A 3VA

.5A .5A

120/100

Hermetically Sealed Power Reed Contact Blocks Table 19.278: Hermetically Sealed Power Reed Contact Blocks [131] [132] [134] Description Symbol

Type [133]

KA51

The maximum number of logic and/or power reed contact blocks per operator is as indicated on individual selection tables for standard contact blocks, except : • On 3 position selector switches with cams C, D, E, F, G, L, or M, mount reed blockson one side only (either side), maximum 2 in tandem. • On 4 position selector switches, mount reed blocks on one side only (either side), maximum 2 in tandem. • On joysticks or on Type KR8 or SKR8 push-pull operators, mount reed blocks on one side only (either side), maximum 2 in tandem.

INTERFACE

KA52

KA53

KA54

KA55

Make

Break

Volts

Continuous

A

VA

A

VA

AC NEMA C300 [135] 120 DC NEMA Q150 [136] 115 240

10.00 5.00

1.000 .500

1200

120

3.0

.50

58

.50

58

3.0

[128] Any Class 9001 Type K, SK or KX operator can be used in an area classified as Class I, Division 2 hazardous locations, if: 1. Only logic (KA40 series) or power (KA50 series) reed contact blocks are used. 2. All Type K and SK illuminated operators are UL approved for use in Class I Division 2 areas. (Add Form Y243 to single lamp Push-To-Test pilot lights.) 3. Type KX illuminated operators do not use 4 lamp light modules, or 2 lamp light modules other than the transformer type. (Add Form Y243 to single lamp Push-To-Test pilot lights.) 4. The operators are mounted in any NEMA 4 & 13 enclosures. [129] UL Listed: File E10054(N), CCN NOIV. [130] Any Class 9001 Type K, SK, or KX operator mounted in a Class 9001 Type KY, KYSS, KYAF, SKY enclosure may be used, except potentiometer operators. [131] Not for use in pendant stations. [132] When ordering, add prefix 9001 to the catalog number. [133] All contact blocks listed below accept #12–18 solid or stranded wire. [134] The power reed contact blocks can be used with standard industrial relays and starters through NEMA Size 4. Minimum voltage is 5 V and the minimum current is 1 mA. [135] Inductive Rating—35% Power Factor. [136] Inductive and Resistive Ratings

19-92

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11/20/2019