
TECHNICAL DATA SHEET
Logic Plus
Plateswitches
1:3
Logic Plus™ Plateswitches
PRODUCT RANGE
10A, 1 gang, single pole, 2 way,
wide rocker plateswitch K4781 WHI
10A, 2 gang, single pole, 2 way,
wide rocker plateswitch K4782 WHI
10A, 3 gang, single pole, 2 way,
wide rocker plateswitch K4783 WHI
10A, 1 gang, single pole, intermediate
wide rocker plateswitch K4785 WHI
10A, 1 gang, single pole,
1 way plateswitch K4870 WHI
10A, 1 gang, single pole,
2 way plateswitch K4871 WHI
10A, 2 gang, single pole,
2 way plateswitch K4872 WHI
10A, 3 gang, single pole,
2 way plateswitch K4873 WHI
10A, 4 gang, single pole,
2 way plateswitch K4874 WHI
10A, 1 gang, intermediate,
plateswitch K4875 WHI
10A, 1 gang, double pole,
1 way plateswitch K4876 WHI
10A, 1 gang, single pole,
plateswitch bell symbol K4878 B WHI
10A, 1 gang, single pole,
push switch ‘press’ legend K4878 P WHI
10A, 6 gang, single pole,
2 way plateswitch K4879 WHI
10A, 1 gang, single pole,
2 way architrave switch K4841 WHI
10A, 2 gang, single pole,
2 way architrave switch K4842 WHI
10A, 1 gang, single pole,
architrave bell symbol K4848 B WHI
10A, 1 gang, single pole,
architrave ‘press’ legend K4848 P WHI
Neon locator K3041
PRODUCT RANGE
20A, 1 gang, single pole,
1 way, plateswitch K4870
20A, 1 gang, single pole,
2 way, plateswitch K4871
20A, 2 gang, single pole,
2 way, plateswitch K4872
20A, 3 gang, single pole,
2 way, plateswitch K4873
20A, 4 gang, single pole,
2 way, plateswitch K4874
20A, 1 gang, intermediate,
plateswitch K4875
20A, 1 gang, double pole,
1 way, plateswitch K4867 WHI
20A, 2 gang, double pole,
1 way, plateswitch K4868 WHI
20A, 1 gang, single pole,
2 way, wide rocker plateswitch K4781
20A, 2 gang, single pole,
2 way, wide rocker plateswitch K4782
20A, 3 gang, single pole,
2 way, wide rocker plateswitch K4783
20A, 1 gang, single pole, intermediate,
2 way, wide rocker plateswitch K4785
20A, dual switch K5208 WHI
20A, dual switch with neon K5207 WHI
D2 WHI
D2 WHI
D2 WHI
D2 WHI
D2 WHI
D2 WHI
D2 WHI
D2 WHI
D2 WHI
D2 WHI
Features
I Two way switches can be wired as one
or two way
I All products clearly printed with
BS Nos., ratings, etc
I Matching Grid switches available in
10 or 20A ratings
I 3mm contact gap
Description
Logic Plus plateswitches are designed to blend in
with the decor, whilst complementing a wide
range of other Logic Plus accessories. They are
designed for easy installation in plasterdepth
boxes and are suitable for controlling lighting
circuits in domestic, commercial and industrial
applications.
Neon locator
A textured, polycarbonate moulding allowing
the glow of the neon to be seen at almost any
angle. Designed to complement the Logic Plus 1,
2, or 3 gang plateswitches.
It is easy to install in existing locations. For 3
gang applications using a 25mm deep box
simplifies wiring.
I Positive switch action
I Top access, backed out and captive
terminal screws
I Neon locator available making switch
easy to find in darkened rooms
©2002 MK Electric Limited The Arnold Centre, Paycocke Road, Basildon, Essex SS14 3EA, United Kingdom Tel: +44 (0)1268 563720 Fax: +44 (0)1268 563064 email: more@mkelectric.co.uk www.mkelectric.co.uk Edition 06-02

TECHNICAL DATA SHEET
Logic Plus
Plateswitches
2:3
Dimensions (mm)
1 gang 2 gang 3 gang
85
85
85
TECHNICAL SPECIFICATION
Electrical
Voltage rating:
250V a.c. 50Hz
Current rating:
10 amps – no derating when used on fluorescent
or inductive loads
20 amps – no derating when used on fluorescent
or inductive loads
Terminal capacity:
All products –
2
4 x 1mm
2
4 x 1.5mm
2
3 x 2.5mm
2
2 x 4mm
2
1 x 6mm
Contact gap:
3mm nominal
Physical
Operating temperature:
–5°C to +40°C)
IP rating:
IP4X
Max. installation altitude:
2000 metres
Operational testing (all plateswitches):
tested to 100,000 operations for mechanical life
tested to 30,000 operations at 10 amp rating
tested to 10,000 operations at 20 amp rating
Standards and approvals
All Logic Plus plateswitches comply with
BS 3676: Part 1, 1989.
Neon locator, BS 5733: 1995.
85
60.3
85
85
60.3
85
85
60.3
85
60.3
85
60.3
85
85
60.3
4 gang 6 gang
85
architrave
1 gang
32
146
120.6
85
12
2 gang
architrave
32
146
120.6
Sectional drawings show
the furthest projections
from the back of the
frontplate (wall surface).
85
60.3
146
120.6
12
12
Box types
Flush Surface
All 1, 2 and 3 gang switches 3995 ZIC K2160 WHI
4 and 6 gang switches 862 ZIC K2161 WHI
1 gang architrave switch 3921 ZIC K2151 WHI
2 gang architrave switch 3922 ZIC K2152 WHI
12
12
12
Cable Management
Logic Plus plateswitches can be mounted in a
variety of MK trunking systems.
See MK catalogue for further details.
©2002 MK Electric Limited The Arnold Centre, Paycocke Road, Basildon, Essex SS14 3EA, United Kingdom Tel: +44 (0)1268 563720 Fax: +44 (0)1268 563064 email: more@mkelectric.co.uk www.mkelectric.co.uk Edition 06-02

TECHNICAL DATA SHEET
Logic Plus
Plateswitches
3:3
Wiring Diagrams
One-way switching
L
N
Common
L1
Lamp/s
Two-way switching
L
N
Two-way switching
3 wire control
SW.L
N
Two-way plus
intermediate switching
L
N
Common
Two-way switches
L1
L2
Dotted lines show alternative switch positions
Common
Two-way switches
L1
L2
L
Lamp/s
Dotted lines show alternative switch positions
Common
Two-way
switch
L1
L2
Lamp/s
Dotted lines show alternative switch positions
Common
L2
L1
Lamp/s
Common
L1
L2
L2
L1
Intermediate
switch
Common
Two-way
switch
L1
L2
Two-way plus
intermediate switching
3 wire control
SW.L
N
Lamp/s
©2002 MK Electric Limited The Arnold Centre, Paycocke Road, Basildon, Essex SS14 3EA, United Kingdom Tel: +44 (0)1268 563720 Fax: +44 (0)1268 563064 email: more@mkelectric.co.uk www.mkelectric.co.uk Edition 06-02
Common
Two-way
switch
L1
L2
L2
L1
Intermediate
switch
Common
Two-way
switch
L1
L2
L
Dotted lines show alternative switch positions