457
WIRING DEVICES
Technical Hotline
+44 (0)1268 563720
13A Connection Units, 20A Switches and Flex Outlets
Description
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 MK range of wiring devices.
Neon indicators
Products are available with Neon indicators included in the rockers of the switched
connection units. In the case of unswitched units, they are positioned centrally and
uppermost on the face plate. Neon indicators are integrally wired into the product
and do not require separate connection when installing. The design gives 175°
visibility in the horizontal and vertical planes.
Fuse carriers
These are captive and are opened by a fast acting, screwdriver operated worm
drive for ease of replacement. A tamper-proof version is also available.
Fuse carriers can be locked open using a padlock, List No. K2000.
Flex outlets
Bottom outlet types are supplied with blanking plug allowing use where the bottom
outlet is not required.
The products are equipped with very strong, push-fit nylon cord grips making
installation safe, quick and easy.
Flex outlet plate
An unfused flex outlet with cord grip and 3 pairs of terminals.
Installation
Wiring
Products must be installed in accordance with current IET Regulations.
Changing Fuses
1.
Unscrew the fuse carrier screw to partially eject the carrier.
2.
Carefully lever the carrier out further to remove the fuse.
Note: The carrier does not come fully out.
3.
Always replace with a BS 1362 type fuse (as used in 13A plugs) of the correct
rating.
4.
Consistent fuse blowing could mean a faulty appliance. If in doubt, consult a
qualified electrician.
5.
Push carrier back until engaging with jacking screw. Screw the carrier down until
flush with surface of the plate. Do not over tighten the screw.
Standards and approvals
All Connection Units comply with
BS 1363-4:1995.
All 20A DP Switches comply with
BS EN 60669-1:1999.
Flex Outlet complies with
BS EN 60670-22:2006.
Fuses comply with BS 1362:1973.
TECHNICAL SPECIFICATION
ELECTRICAL
VOLTAGE RATING
250V a.c.
CURRENT RATING
Connection Units:
13A
DP switches:
20A
Flex outlets:
20A
TERMINAL CAPACITY
Supply terminal:
2 x 6mm² stranded
2 x 4mm²
3 x 2.5mm²
Load terminals:
2 x 6mm² stranded
2 x 4mm²
3 x 2.5mm²
CORD GRIP CAPACITY
Connection units:
min: 2 core, 0.5mm
max: 3 core, 1.5mm
20A DP switches & flex outlet plate:
min: 3 core, 1.5mm
max: 3 core, 2.5mm
PHYSICAL
AMBIENT OPERATING TEMPERATURE
-5°C to +40°C
IP RATING
With flex outlet:
IP2XD
Without flex outlet:
IP4X
MAX. INSTALLATION ALTITUDE
2000 metres
Wiring Devices Technical




