TECHNICAL DATA SHEET
Metalclad Plus
Socket Outlets
1:3
Metalclad Plus™ Socket Outlets
PRODUCT RANGE
PRODUCT RANGE
1 gang
2 gang
Description
13A Unswitched
K848 ALM
13A Unswitched
K850 ALM
13A Switched
K2977 ALM
13A Switched, inboard rockers
K2946 ALM
13A Switched, without backbox
K2977 D5 ALM
13A Switched, red rocker
K2977 D6 ALM
13A Switched, inboard rockers
without backbox
K2946 D5 ALM
13A Switched, with neon
K2477 ALM
13A Switched, inboard red
rockers
K2946 D6 ALM
13A Switched, red rocker, neons
K2477 D6 ALM
13A Switched, non-standard,
clean earth switchsocket
13A Switched, with inboard
rockers and neons
K2446 ALM
K1247 ALM
13A Switched, non-standard,
clean earth, red rocker
13A Switched, with inboard
red rockers and neons
K2446 D6 ALM
K1247 D6 ALM
13A Switched, outboard rockers
K2945 ALM
13A Switched, outboard
rockers, without backbox
K2945 D5 ALM
13A Switched, outboard red
rockers
K2945 D6 ALM
13A Switched, non-standard,
clean earth, outboard rockers
K1248 ALM
13A Switched, non-standard,
clean earth, outboard red rockers
K1248 D6 ALM
13A Switched, non-standard,
clean earth, outboard red rockers
without backbox
K1248 D9 ALM
A range of socket outlets designed for ease of
installation and having all the advantageous
design features of the Metalclad Plus range.
The 2 gang sockets with outboard rockers are
of particular value for use by the infirm and
partially sighted.
Non-standard, clean earth sockets are for use
on installations where restricted access is
required and will only accept MK LN647 13A
non-standard plug with T-shaped earth pin.
The sockets have two independent earth
terminals so that they can also be used for
‘clean earth’ installations.
One gang switchsockets, two gang outboard
switchsockets and two gang unswitched
sockets are fitted with two earth terminals on
a common busbar to provide a double earth
facility for use when installations are to
comply with Regulation 607 of BS 7671, IEE
Wiring Regulations. These should be referred
to for guidance.
The products can be quickly installed as
replacement for existing 13 amp sockets or in
a new installation.
Round pin sockets
A range of round pin sockets is also available,
switched and unswitched.
Standards and approvals
All Metalclad Plus 13A socket outlets comply with
BS 1363: Part 2: 1995.
©2001 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 07-01
TECHNICAL DATA SHEET
Metalclad Plus
Socket Outlets
2:3
TECHNICAL SPECIFICATION
Features
■
Moulded ‘on’ indicator flash on
switches will not rub off – totally safe
■
Additional electrical safety from neutral
‘make first’, ‘break last’ feature
■
Optional neon indicators in the switch
rockers with 175° visibility in the
horizontal and vertical planes
■
Switch contacts with silver contacts on
both surfaces for good continuity
■
■
Unique 3 pin operated safety shutter
Only one size of screwdriver required
for installation
■
White terminal markings on grey rear
mouldings for clearer identification
■
■
Top access, angled terminals make
wiring easier and quicker
Dual earth terminals for high integrity
earthing on list Nos. K850 ALM,
K2977 ALM, K2477 ALM, K2945 ALM,
K2757 WHI
■
Minimum 3mm contact gap
■
Backed out and captive terminal screws
■
Double pole switching
■
Non-standard ‘clean earth’ sockets
available
■
Choice of inboard or outboard
positioned rockers
■
Socket inserts manufactured from a
specially formulated PC/ABS blend
■
Frontplates and backboxes
manufactured from heavy gauge steel
Box types
Flush
Flush (for extra
wiring space)
Surface Metal
1 gang
861 ZIC
866 ZIC
as supplied
2 gang
862 ZIC
886 ZIC
as supplied
Electrical
Voltage rating:
250V a.c.
Current rating:
13A per socket outlet
Terminal capacity:
Live, neutral & earth
3 x 2.5mm2
3 x 4mm2
3 x 6mm2 (stranded)
(Dual earth terminals on list Nos.
K850 ALM, K2977 ALM, K2477 ALM, K2945 ALM
Physical
Ambient operating temperature:
–5°C to +40°C
(not to exceed an average of more than 25°C in any
24 hour period)
IP rating:
IP4X
Installation
Metalclad Plus socket outlets can be wall or
bench mounted. Do not mount or use as a
trailing socket or where they may be subject
to excessive moisture or dampness.
2 gang switchsocket – view from rear
Top-facing, angled, backed-out terminals
make wiring easier and quicker.
Max. installation altitude:
2000 metres
Box Knockouts
1 gang
6 x 20.5 dia
2 in one side
1 in each of the other 3 sides
1 in base
2 gang
8 x 20.5 dia
3 in top
2 in bottom
1 in each side
1 in base
©2001 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 07-01
TECHNICAL DATA SHEET
Metalclad Plus™
Dimensions (mm)
Socket Outlets
3:3
1 gang
86
30
51
86
17
60.3
47
2 gang
146
30
51
86
120.6
146
17
28
47
51
86
120.6
17
47
©2001 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 07-01
TECHNICAL DATA SHEET
Metalclad Plus
Connection Units &
20A DP Switches
1:2
Metalclad Plus™
Connection Units & 20A DP Switches
Description
PRODUCT RANGE
13A DP Connection unit,
switched
K942 ALM
with tamper-proof fuse screw
K942 KO ALM
with front flex outlet
K932 ALM
with neon indicator
K962 ALM
with neon indicator & red rocker
K962 D6 ALM
with front flex outlet
& neon indicator
K972 ALM
with front flex outlet
neon indicator & red rkr.
K972 D6 ALM
with secret key, neon
& tamper-proof screw
K963 KO ALM
13A Connection units,
unswitched
K954 ALM
with tamper-proof fuse screw
K954 KO ALM
with front flex outlet
K989 ALM
with front flex outlet,
fitted with 5 amp fuse
K989D1ALM
with neon indicator
K983 ALM
with front flex outlet
& neon indicator
K986 ALM
20A DP switches
K5212 ALM
with neon indicator
K5232 ALM
with front flex outlet
& neon indicator
A range of 13A fused connection units and
20A DP switches designed for the connection
of refrigerators, water heaters, central heating
boilers and other fixed appliances.
The ranges are designed for ease of installation
and have the advantageous design features of
the Metalclad Plus range.
Neon indicators
Neon indicators can be included in the
rockers of the switched connection units. In
the case of unswitched units, they are located
centrally and uppermost on the face plate.
Neon indicators are integrally wired into the
product and do not require separate
connection when installing.
A tamper-proof version is also available.
Fuse carriers can be locked open using a
padlock, List No. K2000.
Flex outlets
The products are equipped with very strong,
push-fit nylon cord grips making installation
safe, quick and easy.
Features
■
Optional indicators in the switch
rockers with 170° visibility in the
horizontal and vertical planes
■
Worm-drive operated fuse carriers for
additional security (tamper-proof
version available)
■
■
Angled, top mounted terminal screws
simplify wiring
■
Moulded ‘on’ indicator flash on
switches cannot rub off – totally safe
■
Captive fuse carrier
Fuse carrier lockable in open position
■
Additional electrical safety from neutral
‘make first’, ‘break last’ feature
■
All supply and load cables can be cut
and stripped to the same length
■
Secure cable and flexible cord
connection
■
Integrally wired indicators save
installation time
■
All terminal and fixing screws operated
by one-size (4mm) screwdriver
■
Push-fit cord grips, for safer, quicker
installation
■
Backed out and captive terminal screws
Connection units comply with BS 1363: Part 4: 1995.
20A DP switches comply with BS 3676: Part 1: 1989.
These are captive and are opened by a fast
acting, screwdriver operated worm drive for
ease of replacement.
The design gives 170° visibility in the horizontal and vertical planes.
K5242 ALM
Standards and approvals
Fuse carriers
Fuses are to BS 1362.
Note: These switches are not recommended for switching large banks of PCs
©2001 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 07-01
TECHNICAL DATA SHEET
Metalclad Plus
Dimensions (mm)
Connection Units &
86
20A DP Switches
49
2:2
86
fuse
11 dia
60.3
9
TECHNICAL SPECIFICATION
Box types
Electrical
Supplied with a box having 2 x 20 mm knockouts in one side, as well as 1 x 20 mm
knockouts in each of the other three sides and the bottom of the box.
Voltage rating:
250V a.c.
Spare boxes are available without side knockouts (K829 ALM).
Current rating:
Connection units – 13 amp
DP switches – 20 amp
All boxes have a knockout in the base.
Terminal capacity:
Supply terminal: 2 x 6mm2 stranded
2 x 4mm2
3 x 2.5mm2
Load terminals: 2 x 6mm2 stranded
(1 x 6mm2 on earth terminal)
2 x 4mm2
3 x 2.5mm2
Flex outlet/cord grip capacities:
Connection units: min: 2 core, 0.5mm
max: 3 core, 1.5mm
20 amp DP
switches:
min: 3 core, 1.5mm
max: 3 core, 2.5mm
Physical
Ambient operating temperature:
–5°C to +40°C
(not to exceed an average of more than 25°C
in any 24 hour period)
IP rating:
IP4X
Max. installation altitude:
2000 metres
Front outlet cord grip
Lockable fuse carrier
Installation
Metalclad Plus connection units and 20A
cable outlets and switches can be wall or
bench mounted. Do not use on a trailing lead.
Wiring
Products must be installed in accordance with
current IEE Regulations.
©2001 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 07-01
TECHNICAL DATA SHEET
Metalclad Plus
Plateswitches
1:3
Metalclad Plus™ Plateswitches
Description
PRODUCT RANGE
10A, 1 gang, single pole, 2 way,
plateswitch
K3591 ALM
10A, 2 gang, single pole, 2 way,
plateswitch
K3592 ALM
10A, 3 gang, single pole, 2 way,
plateswitch
K3593 ALM
10A, 1 gang, single pole, 2 way,
wide rocker plateswitch
K3781 ALM
10A, 2 gang, single pole, 2 way,
wide rocker plateswitch
K3782 ALM
A comprehensive range of tough, impact
resistant, surface mounted plateswitches. They
have been designed to suit a wide variety of
applications in factories, workshops, plant
rooms, warehouses, schools and hospitals.
The frontplate has smooth chamfered edges
engineered to fit flush with the backbox.
Backboxes with or without side knockouts are
available and all have a central knockout in
the base.
Wide rocker switches are also available.
Features
I
Two way switches can be wired as one
or two way
I
Top access, backed out and captive
terminal screws
I
All products clearly printed with
BS Nos., ratings, etc
I
Metalclad Plus is supplied with white
inserts only
I
Matching Grid switches available in
10 or 20A ratings
I
I
3mm contact gap
An earth terminal is provided attached
to rear of product and in base of
mounting box
I
Positive switch action
I
1 & 2 gang wide rocker versions
©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
Metalclad Plus
Dimensions (mm)
Plateswitches
1 gang
2:3
86
2 gang
3 gang
86
86
86
86
86
60.3
60.3
60.3
Wide rocker
86
86
86
51
60.3
47
7
86
60.3
12
TECHNICAL SPECIFICATION
Electrical
Voltage rating:
250V a.c. 50Hz
Current rating:
10 amps – no derating when used on fluorescent
or inductive loads
Terminal capacity:
All products –
4 x 1mm2
4 x 1.5mm2
3 x 2.5mm2
2 x 4mm2
1 x 6mm2
Box types
All 1, 2 and 3 gang switches
Flush
Surface
3995 ZIC
K2160 WHI
All these products are designed primarily for surface mounting and are supplied complete with
mounting box. If flush mounting is required then recommended box is 3995 ZIC 16mm deep.
Contact gap:
3mm nominal
Physical
Operating temperature:
–5°C to +40°C)
IP rating:
IP4X
Max. installation altitude:
2000 metres
Operational testing (all plate switches):
tested to 100,000 operations for mechanical life
tested to 30,000 operations at 10 amp rating
Standards and approvals
All Metalclad Plus plateswitches comply with BS 3676:
Part 1, 1989 and with CENELEC PREN 60669-1.
©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
Metalclad Plus™
Wiring Diagrams
Plateswitches
3:3
One-way switching
Common
L1
L
N
Lamp/s
Two-way switching
Common
L2 Two-way switches L2
L1
L
N
Common
L1
Lamp/s
Dotted lines show alternative switch positions
Two-way switching
3 wire control
Common
SW.L
N
L1
Common
L2 Two-way switches L1
L2
L
Lamp/s
Dotted lines show alternative switch positions
Two-way plus
intermediate switching
Common
L1
L
N
Two-way
L2 switch
Common
L1
L2
Intermediate
switch
L1
Two-way
L2 switch
Lamp/s
Dotted lines show alternative switch positions
Two-way plus
intermediate switching
3 wire control
SW.L
N
Common
Common
L1
L1
Two-way
L2 switch
L2
Intermediate
switch
L1
Two-way
L2 switch
L
Lamp/s
Dotted lines show alternative switch positions
©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