TECHNICAL DATA SHEET
Three Pole Fan Isolators
1:3
Logic Plus
Edge
Albany Plus
Chroma Plus
Three Pole Fan Isolators
PRODUCT RANGE
Logic Plus
10A With switchlock and padlock K4857 WHI
10A Without switchlock K4859 WHI
10A Switchlock for fan isolator K4858
Padlock K2000
Edge
10A Fan Isolator K14859*
Albany Plus
10A Fan Isolator K4860 MCO
K4860 SAB
Chroma Plus
10A Fan Isolator K4860 PCR
*Edge is available in a choice of
10 different finishes.
See MK catalogue for more details.
Standards and approvals
Comply with BS EN 60947: 1992
Description
The MK Three Pole Fan Isolator provides a safe
and simple method of isolating mechanical fan
units and is particularly useful in bathrooms,
toilets, storerooms and basements where there
is little or no natural light.
For example, timer controlled fans are often
linked into the lighting circuit for energy
saving and convenience. In such an
installation there is often a need for the
lighting circuit to remain live to provide light
whilst the fan unit is externally isolated so that
routine maintenance and repairs can be
carried out in complete safety.
Features
■ Switchlock list no. 4858 is available to
allow the isolator to be locked in the
disconnected position to facilitate fan
maintenance
The 4857 fan isolator can be used as a double
pole or triple pole isolator. In addition it
includes a clear on/off indicator and the
frontplate features a fan isolator symbol for
easy circuit identification.
©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
Three Pole Fan Isolators
2:3
Dimensions (mm)
Logic Plus
Edge
Albany Plus
Chroma Plus
TECHNICAL SPECIFICATION
Electrical
Voltage rating:
250V a.c. 50Hz
Current rating:
10 amps
Terminal capacity:
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
Classifications
Method of operation: Stored energy operation
Suitability for isolation: Suitable for isolation
Ratings
Utilisation category AC23B
Rated operational voltage (Ue) 250V
Conventional free air thermal
current (Ith) 10A
Rated frequency 50Hz
Rated making capacity 100A rms
Rated breaking capacity 80A rms
Rated conditional short-circuit
current 6000A rms
(with supply side protective device GEC NIT 16
BS88: part 2: 1988 16A 550VAC utilisation
category gG 80KA breaking capacity fuse links.)
Physical
Operating temperature:
–5°C to +40°C)
IP rating:
IP4X
Max. installation altitude:
2000 metres
85
on
85
off
isolator
60.3
Box types
Flush Surface
Logic Plus 3995 ZIC K2160 WHI
Albany/Chroma 3995 ZIC K2142 WHI
Edge 866 ZIC K2153 WHI
Installation
Edge Three Pole Fan Isolators are installed
with the front edge of the mounting box set
back 10mm from the mounting face.
12
19
Edge
©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