6730S MK (ELECTRIC), 6730S Datasheet - Page 4

• Manufacturer Part Number: 6730S
• Description: RCD, 32A
• Manufacturer: MK (ELECTRIC)
• Series: SENTRYr

Specifications of 6730S

• No. Of Poles: 2
• Voltage Rating Vac: 230V
• Svhc: No SVHC (18-Jun-2010)
• Approval Bodies: BS EN61008, IEE
• Cross-section Area Max: 35mm2
• Current Rating: 32A
• External Depth: 76mm
• External Length / Height: 81mm
• External Width: 36mm

TECHNICAL DATA SHEET
Sentry
Residual Current Devices
(RCDs)
4:5
©2001 MK Electric Limited The Arnold Centre, Paycocke Road, Basildon, Essex SS14 3EA, United Kingdom Tel: [phone] Fax: [phone] email: [e-mail] www.mkelectric.co.uk
12
3 phase, 3 wire systems
Sentry 4 pole RCDs may be used to provide
earth fault protection on 3 phase, 3 wire
systems, as the current balance mechanism
does not require a neutral to be connected in
order to operate effectively.
However, Sentry 4 pole RCDs do, ideally,
require a neutral connector to be provided on
the supply side of the RCD in order to ensure
that the test circuit operates satisfactorily.
Testing
If an RCD is installed for additional protection
against indirect contact, it is a requirement
of the IEE Regulations that the effectiveness
of the RCD be verified. This must be achieved
by a test simulating an appropriate fault
condition and be independent of any test
facility incorporated in the RCD. The test
currents to be applied are as follows:
Test current Condition
0.5 x l
1.0 x l
5.0 x l
N
N
R
n
n
n
1
2
18
RCD must not trip
RCD must trip within 300mS
RCD must trip within 40mS
3
4
5
6
OUT
IN
36
N
N
R
1
2
Where connection of a neutral supply is not
possible, then an alternative method of
ensuring that the test button is operational is
to fit a suitable power resistor (rating 4W)
between the load side neutral pole and a
phase pole not associated with the normal
test button operation
See below for details.
Where l n is the RCD’s rated tripping current
in accordance with wiring regulations and
product standard BS EN 61008.
Sentry 4 pole RCD on three wire system
l
(ma)
30
100
300
(R not provided)
3
4
n
5
6
OUT
IN
R
( )
2200
680
220
Edition 07-01