Delta Three Phase 1342457 06-03-05 Service Manual download pdf (Page 187)

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185

XT IEC Power Control

June 2005

Reference Data

Index of Enclosure Ratings — IEC

Table 236. 1st Characteristic Numeral Table 237. 2nd Characteristic Numeral

NEMA Deﬁnitions Pertaining to Non-hazardous Locations —

NEMA Standard 250

Type 1

Enclosures are intended for indoor use, primarily to provide a degree of protection

against contact with the enclosed equipment.

Type 3

Enclosures are intended for outdoor use, primarily to provide a degree of protec-

tion against windblown dust, rain, sleet and external ice formation.

Type 3R

Enclosures are intended for outdoor use, primarily to provide a degree of

protection against falling rain, sleet and external ice formation.

Type 4

Enclosures are intended for indoor or outdoor use, primarily to provide a degree

of protection against windblown dust and rain, splashing water and hose-directed

water.

Type 4X

Enclosures are intended for indoor or outdoor use, primarily to provide a degree

of protection against corrosion, windblown dust and rain, splashing water and

hose-directed water.

Type 6

Enclosures are intended for indoor or outdoor use, primarily to provide a degree

of protection against the entry of water during occasional temporary submersion

at a limited depth.

Type 6P

Enclosures are intended for indoor or outdoor use, primarily to provide a degree

of protection against the entry of water during prolonged submersion at a limited

depth.

Type 12

Enclosures are intended for indoor use, primarily to provide a degree of protection

against dust, falling dirt, and dripping non-corrosive liquids.

Type 13

Enclosures are intended for indoor use, primarily to provide a degree of protection

against dust, spraying of water, oil and non-corrosive coolant.

Protected against contact and penetration of

solid bodies.

0 Not protected.

1 Protection against solid objects greater

than 50 mm.

2 Protection against solid objects greater

than 12 mm.

3 Protection against solid objects greater

than 2.5 mm.

4 Protection against solid objects greater

than 1.0 mm.

5 Dust protected.

6 Dust-tight.

0 Not protected.

1 Protection against dripping water.

2 Protection against dripping water when

tilted up to 15 degrees.

3 Protection against rain.

4 Protection against splashing water.

5 Protection against water jets.

6 Protection against heavy seas.

7 Protection against the effects of

immersion.

8 Protection against submersion.

NEC Deﬁnitions Pertaining to

Hazardous Locations —

Article 500

E51 Limit Switch Type Proximity

Switches are rated for use in the fol-

lowing locations:

Class I Division 2, Groups A, B, C or D —

Indoor Use

■ For the deﬁnition of a Class I

Division 2 location, see National

Electrical Code Article 500-5,

paragraph (b).

■ For the deﬁnitions of Class I Group

A, B, C, D Classiﬁcations, see the

National Electrical Code Article

500-3, paragraph (a).

Class II Division 2, Groups F or G — Indoor

Use

■ For the deﬁnition of a Class II

Division 2 location, see National

Electrical Code Article 500-6,

paragraph (b).

■ For the deﬁnitions of Class II Group

F and G Classiﬁcations, see the

National Electrical Code Article

500-3, paragraph (b).

Class III Division 2 — Indoor Use

■ For the deﬁnition of a Class III

Division 2 location, see National

Electrical Code Article 500-7,

paragraph (b).

■ For the deﬁnitions of Class III

Classiﬁcations, see the National

Electrical Code Article 500-7.

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