MK Electric Catalogue No. 49

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492
Standards and approvals
3164WHI fully complies with the 17th Edition
Wiring Regulations (BS 7671:2008 with respect
to safety isolation for maintenance purpose.
Conforms to BS EN 60669-1:1999
3151WHI, 3190WHI, K3191WHI, K3192WHI,
K3131WHI, K2051WHI, K2056WHI, conform to
BS EN 60669‑1:1999
TECHNICAL SPECIFICATION
ELECTRICAL
VOLTAGE RATING
250V a.c.
MAXIMUM RATING
See range details
Note: Switches do not have to be derated when
used with resistive or fluorescent loads
TERMINAL CAPACITY
K3131, 3190, K3191, K3192
4 x 1.0mm²
3 x 1.5mm²
3151
4 x 2.5mm²
2 x 4.0mm²
1 x 6mm²
3164
4 x 4mm²
3 x 6mm²
1 x 10mm²
1 x 16mm²
K2051/K2056, Earth Terminal
6 x 1mm²
4 x 1.5mm²
2 x 2.5mm²
1 x 4mm²
1 x 6mm²
PHYSICAL
AMBIENT OPERATING TEMPERATURE
–5°C to +40°C
IP RATING
IP3X
MAX. INSTALLATION ALTITUDE
2000 metres
Installation
MK ceiling accessories are safe for use in all
normal lighting applications. Do not mount them
where they may be subjected to excessive
moisture or dampness.
Wiring
Products must be installed in accordance with
BS 7671:2008.
For a full range of corresponding products,
see pages 53-56 in the product selector.
Ceiling Switches
Description
A range of 6 and 16 Amp ceiling switch options plus a 50 Amp DP flush mounted
ceiling switch.
Features
l Mounting blocks have an earth
terminal rivetted into their bases
l 3190RCWHI has a retractive
(momentary) switch action and
can be wired as either pull to
make or pull to break
l 3190RCWHI has a red pull cord
l Ceiling switches with standard
white cords are 1.5m minimum
length, and with standard red
cords are 2m minimum length
l K3191, K3192 and K3131 have self
locating feature when used with
mounting block, to aid installation
l Ceiling switches with white cords
and bangles are 2m minimum
length, and with red cords and
bangles are 3m minimum length
l 3164WHI is fitted with mechanical
OFF indicator
l 3164 has a full 3 mm contact gap
l 3164 may be surface mounted
Dimensions (mm)
43
77
Fixing centres
50.8
68
17
Fixing centres
50.8
42
67
Fixing centres
50.8
27
77
27
84
K3191WHI/
K3192WHI
3190RCWHI K3131WHI
3151WHI
K2051WHI K2056WHI
86
46
60.3
OFF
Fixing centres
3164WHI
43
77
Fixing centres
50.8
WIRING DEVICESWHITE
Ceiling Accessories
Technical