Delta Controls GR2_4 User Manual

Page 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 – 2004/108/EC
Machinery Safety Directive MSD – 2006/42/EC

WIRING
Junction box cable glands and adaptors. Optional Junction box code ‘C’ and ‘D’ is supplied
with an M20 x 1.5 tapped hole blanked with a red plug. Discard the red plug and fit a
suitable proprietary brass or nylon M20 cable gland with thread length of 10 mm. Fit a fibre
washer to the outside. See diagram 1.
Alternately the junction box may be supplied from the factory with a threaded adaptor ready
to accept the customer’s gland or conduit system.
Alternatives:
1) A metal or nylon adaptor may be used to accommodate other sizes of gland eg NPT, or
conduit system. See diagram 2.

Earthing / grounding – Use earthing point provided inside the junction box (when fitted). The
user must make suitable local earthing arrangement, if required, to ensure that metal glands /
adaptors are earthed.

Pollution degree – all products are suitable for use in pollution degree 3.Ref EN60947-5-1

Electrical Isolation – these products are not suitable for electrical isolation. Always isolate
circuit separately to carry out any electrical work.

TABLE A – MICROSWITCH RATINGS

SWITCH

CODE

(type)

UL/CSA

MICROSWITCH

RATING

(Resistive)

*See Note

IEC 947-5-1/EN 60947-5-1 RATING

Designation

Utilization