7

characteristics

Severe Duty Limit Switches

0

9007T Mill and 9007FT Foundry Switches

Conforming to NEMA A600 and UL508

Environment characteristics

Conforming to standards

UL508

Product certifications

UL Listed, CSA Certified, CE Marked

Protective treatment

Corrosion resistant gray paint

Ambient air temperature

- 10

Vibration resistance

10G (10 - 55 Hz)

Shock resistance

30G

Electric shock protection

Class O

Degree of protection

NEMA Type 1, 2, 4, 12, 13, IP65, 66, 67

Cable entry or connector

0.5" NPT (metric available)

Materials

Cast zinc n

Contact block characteristics

Rated operational

characteristics hard contacts

AC Voltage

NEMA A600 Ithe = 20 A

20 A Resistive and continuous

Rated operational

characteristics hard contacts

DC Voltage

NEMA P 600 Ithe = 20 A

20 A Resistive and continuous

Rated insulation voltage

600 V

Rated impulse withstand voltage

2,500 Vac for 1 minute for CE, 2,200 Vac for 1 minute for UL, and

2,640 Vac for 1 minute for CSA

Positive opening

No

Short circuit protection

20 A Bussmann Class CC KTK-R-20 fuse, non time delay

Terminal wire sizes

(Cabling/Screw Clamp)

Maximum actuation speed

15.2 mpm / 27.4 mpm (50 fpm / 90 fpm) with 45

Electrical durability

N/A (future availability)

Maximum current ratings for control circuit contacts

Contacts

Volts

AC

Volts

DC

Inductive

35% Power Factor

Resistive

75% Power Factor

Inductive

and Resistive

Make

Break

Con-

tinuous

Carrying

Amperes

Make, Break and

Continuous Carrying

Amperes

Make and Break

Amperes

Con-

tinuous

Carrying

Amperes

Amperes

VA

Amperes

VA

Single

Throw

Double

Throw

SPDT

Quick Make

and Break

120

240

480

600

150

75

37.5

30

18,000

18,000

18,000

18,000

20

12.5

6.25

5

2400

3000

3000

3000

20

20

20

20

20

20

20

20

120

250

600

5.0

1.0

0.2

º

º

º

20

20

20

All Slow

Make

and Break

120

240

480

600

60

30

15

12

7200

7200

7200

7200

6

3

1.5

1.2

720

720

720

720

20

20

20

20

10

10

10

10

20

20

20

20

…

…

…

…

…

…

…

…

…

…

…

…

…

…

…

…

Characteristics for material and ratings comparisons — standard switches n

9007 Type T/FT

Type L (R. B. Denison Lox Switch)

Body material

Cast zinc

Cast aluminum

Cover material

Cast zinc

Aluminum

Base plate material

Steel with zinc plating

Steel with chromate plating

Shaft seal material

Nitrile

PVC

Contact block material

Phenolic

Glass filled nylon

Moveable contact material

Fine silver on copper backing

Coin Silver on steel backing

Stationary contact material

Fine silver on copper backing

90/10 AgCdO on copper backing

Low ambient temperature rating

-10° F

0° F

High ambient temperature at full rating f

180° F

200° F

Enclosure rating

NEMA Types 1, 2, 4, 12 and 13

NEMA Types 1, 4 and 13

Vibration resistance

10G (10 - 150 Hz)

40G max (10-150 Hz)

f Many switches are available with higher or lower temperature limits by selecting special versions or special options. See page 29.