Delta-controls S21 Manual do Utilizador descarregar pdf (Página 2)

Low Voltage Directive (LVD) – 2006/95/AC. Switch products with enclosure codes ‘W’ and

‘A’ supplied CE-marked must be installed and used in accordance with the main instructions

and this addendum supplied with each product. Products rated lower than 50V ac and 75 V dc

are outside the scope of the LVD, and therefore, do not require CE-marking under this

directive. The LVD does not apply to products with enclosure codes ‘H’, ‘K’, ‘R’, ‘M’, ‘N’ for use

in hazardous areas. Switch products with enclosure codes ‘H’, ‘K’, ‘R’, ‘M’, ‘N’, are covered by

the Explosive Atmospheres Directive ATEX – 94/9/EC and when CE-marked will indicate

compliance with this directive alone. The following directives do not apply to switch products

manufactured by Delta Controls:

Electromagnetic Compatibility EMC – 2004/08/EC

Machinery Safety Directive MSD

–

2006/42/EC

WIRING

ENCLOSURE ‘W’

Cable Glands and adaptors – If enclosure ‘W’ is supplied with a through hole of 22 mm

blanked with a blind grommet. Discard the grommet and fit a suitable proprietary brass or

nylon M20 cable gland with thread length of 10 mm and locknut. Fit the nylon reducer provided

to the inside and a fibre washer to the outside. See diagram 1.

Alternately, the enclosure may be supplied from the factory with a threaded adaptor ready to

accept the customer’s gland or conduit system.

Alternatives:

i) a metal or nylon adaptor may be used to accommodate other sizes of gland eg NPT, or

conduit system. See diagram 2.

ii) an elbow kit may be supplied to enable the entry to be rotated axially through 90° and

radially through 360°. See diagram 3.

Earthing / grounding – The user must make suitable local earthing arrangements, if required,

to ensure that metal glands are earthed.

An earthing point is provided inside the enclosure. If this is disturbed in any way it must be

reassembled correctly to be an effective earth and prevent ingress. See diagram 4. When

removing the lid slacken the M4 nut first and ensure it is re tightened whenever the lid is

replaced. See diagram 4.1.

ENCLOSURE ‘A’

Cable Glands and adaptors – Enclosure ‘A’ is supplied with an M20 x 1.5 tapped hole. Use a

suitable stainless steel cable gland and sealing washer. Alternately the enclosure may be

supplied with a threaded adaptor fitted at the factory ready to accept the customer’s gland or

conduit system. See diagram 5.

Earthing / grounding – Bonding between the enclosure and gland / adaptor will be achieved

when both parts are screwed together. An earthing point is provided inside the enclosure. If

this is disturbed in any way it must be reassembled correctly to be an effective earth and

prevent ingress. See diagram 4.

EARTHING / GROUNDING OF PROCESS CONNECTION AND BACK PLATES – All the

internal dead metal work is bonded to the enclosure earthing point. Due to requirements of

sealing, the process connection and back plates may be isolated from the earthing point. Do

not, therefore, rely on either for earthing, instead always use the earthing point provided. If

required, the process connection and back plates may be bonded locally. Never use the

process connection or inlet pipe for locally grounding welding equipment unless it is separately

earth bonded.

WARNING- EXPLOZION HAZARD- SUBSTITUTION OF ANY COMPONENT MAY IMPAIR

SUITABILITY FOR CLASS I, DIVISION 2.

TABLE A

–

MICROSWITCH RATINGS

S W IT C H

C ODE

U L / C S A

M I C R O S W I T C H

R A T I N G

( R E S I S T I V E )

* S E E N O T E

IEC 947

1 / EN 60947

1 RATING

Uimp

D e s i g n a t i o n

U t i l i s a t i o n

C a t e g o r y

R A T I N G

( I e I U e )

Make

Bre ak

0 0

0 1

5 A @ 11 0 / 25 0

V A C

0 . 6 / 0 . 3 A @

1 2 0 / 2 4 0 V A C

A C 1 4 /

D 3 0 0

4 3 2

7 2

0 . 8 k V

2 5 0

0 . 2 2 / 0 . 1 A @

1 2 5 / 2 5 0 V D C

D C 1 3 /

R 3 0 0

D C

2 8

0 2

0 3

5 A @ 11 0 / 25 0

V A C

0 . 6 / 0 . 3 A @

1 2 0 / 2 4 0 V A C

A C 1 4 /

D 3 0 0

A C

4 3 2

7 2

0 . 8 k V

250

2 A @ 30 V D C

0 . 2 2 / 0 . 1 A @

1 2 5 / 2 5 0 V D C

D C 1 3 /

R 3 0 0

D C

2 8

0 4

0 5

1 A @ 12 5 V A C

1 A @ 12 5 V AC R E S I S TI V E ( IE C 1 05 8

1 /E N 61 0 58

1 )

* 1 0 0 m A @ 3 0

V D C

0 8

0 9

* 5 A @

1 1 0 / 2 5 0 V A C

0 . 6 / 0 . 3 A @

1 2 0 / 2 4 0 V A C

A C 1 4 /

D 3 0 0

4 3 2

7 2

0 . 5 k V

2 5 0 V

5 A @ 3 0 V D C

0 . 2 2 / 0 . 1 A @

1 2 5 / 2 5 0 V D C

D C 1 3 /

R 3 0 0

D C

2 8

0 G

0 H

* 1 A @ 3 0 V A C

A C 1 4 /

E 1 5 0

A C

2 1 6

3 6

0 . 5 k V

1 2 5 V

0 . 3 A @ 1 2 0

& 3 0 V D C

V A C

0 C

5 A @ 11 0 / 25 0

V A C

0 . 8 k V

2 5 0 V

0 . 6 / 0 . 3 A @

1 2 0 / 2 4 0

V A C

A C 1 4 /

D 3 0 0

A C

4 3 2

7 2

0 D

5 A @ 11 0 / 25 0

V A C

0 . 6 / 0 . 3 A @

1 2 0 / 2 4 0 V A C

A C 1 4 /

D 3 0 0

A C

4 3 2

7 2

0 . 8 k V

250V

2 A @ 30 V D C

0 . 2 2 / 0 . 1 A @

1 2 5 / 2 5 0 V D C

D C 1 3 /

R 3 0 0

D C

2 8

H 2

H 3

H 6

5 A @ 11 0 / 25 0

V A C

0 . 6 / 0 . 3 A @

1 2 0 / 2 4 0 V A C

A C 1 4 /

D 3 0 0

4 3 2

7 2

0 . 5 k V

250V

2 A @ 30 V D C

0 . 2 2 / 0 .

1 A @

1 2 5 / 2 5 0 V D C

D C 1 3 /

R 3 0 0

D C

2 8

The electrical rating is dependent on the microswitch fitted to

the instrument. The electrical rating is defined by each

approval that the microswitch complies with and is shown on

the product nameplate, ie UL / CSA, or IEC. It should be

noted that the switch must be used within the electrical rating

specified from the approval you require. Table A lists the

actual IEC ratings against the Designation & Utilisation

Category marked on the nameplate. In the absence of any

verification by UL / CSA the microswitch *manufacturer’s

rating is specified in bold italics. If in doubt, seek guidance

from factory.

ENCLOSURE WALL

LOCKNUT

NYLON 22/20

REDUCER

FIBRE WASHER

PROPRIETARY

GLAND

DIAG 1

‘W’ CABLE GLAND ASSY

CABLE GLAND /

CONDUIT ADAPTOR

DIAG 2

‘W’ ADAPTOR ASSY

GLAND

SCREW

FIBRE

WASHER

O RING

SEAL

½" NPT Pg 13.5

M20 X 1.5 ¾ ET

ENCLOSURE

WALL

DIAG 3

ELBOW ASSY

M4 PLAIN

WASHER

M4 SCREW

EARTH

STRAP

M4 STUD

M4 SINGLE

COIL W ASHER

M4 NUT

LID

BASE

GASKET

DIAG 4.1

EARTH STRAP

ENCLOSUREM20 x 1.5

FIBRE WASHER

ADAPTOR

DIAG 5

‘A’ ADAPTOR

EARTH LABEL

ENCLO SURE W ALL

(EXTERIOR)

SCR EW

BONDED SEAL

SINGLE

COIL

WASHER

PLAIN

WASHERS

STAR W ASHER

NUT

DIAG 4

EARTHING ASSY

Declaration of Conformity

We: Delta Controls Ltd

Island Farm Avenue

West Molesey

Surrey, UK

KT8 2UZ

As the manufacturers of the apparatus listed, declare under our sole responsibility that the products listed

below:

Pressure, Pressure Difference, Temperature & Flow switches series “W” or “A”:

201, 202, 203, 281, 204, 207, 208, 209, 231, 232, 233, 234, S21, S22, S24, GR2, GR4, VM2, VM4.

301, 303, 304, 381, 384, 306, 386, 310, 316, S31, S34, GR3, GR6.

721, 731, 771, 722, 732, 772, 723, 733, 773, 781, 734, 774, 741, 742, 743, 744, S71, GR7.

131.

To which this declaration relates are in conformity with the following relevant standards or parts thereof:

EN 60947-1 :1992 Low voltage switch gear and control-gear-general rules.

EN 60947-5-1:1992 Low voltage switch gear and control-gear-control circuit devices and switching

elements.

EN 60529: 1991 Specification for classification of degrees of protection provided by enclosures.

EN 60950:1992 Safety of information technology equipment including electrical business equipment:

section 2.5.

BS 6134:1991 Specification for pressure and vacuum switches.

And thereby conforms to the requirements of the Low Voltage Directive 73/23/EC amended by 93/68/EEC.

Signed:

………………….

R. Harrison

Managing Director

Original dated 22

June 2000

Rev. B dated 12

August 2009

1 2

PRODUCT CODE 1
‘W’ ADAPTOR ASSY 2

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