Watson-Marlow 730 U - Conductor Colour Coding; Wiring the US NEMA Module; Earth Screening of Control Cables on NEMA Module

11.1 Conductor colour coding
Conductor type European colour North American colour
Line Brown Black
Neutral Blue White
Ground Green/Yellow Green
11.2 Wiring the US NEMA module
The NEMA 4X modules fitted to 530, 630 and 730 Du, S, U and PROFIBUS cased pumps with part
numbers ending with an A (xxx.xxxx.xxA) have two pairs of wiring ports. Two M16 ports are provided,
together with glands to seal circular cross-section cables ranging in diameter from 4mm to 10mm (5/32in
to 13/32in; two M20 ports are provided, together with glands to seal circular cross-section cables ranging
in diameter from 10mm to 14mm (13/32in to 9/16in) rated for IP66 minimum.
Four adaptors are also supplied: two M16 male to 3/8in NPT female; and two M20 male to 1/2in NPT
female. These can be used to fit flexible conduit systems where NPT threads are required.
11.3 Earth screening of control cables on NEMAmodule
Optional EMC Cable Gland
(Part No. GR0075 M16 EMC
Cable Gland)
Control cable
Plastic cable gland with
bonding ‘pigtail’ wire to PCB
earth connection
PCB earth
connection
PCB earth
connection
PCB
Recommended method
Alternative method
20 m-730un-en-08.1