5910S MK (ELECTRIC), 5910S Datasheet
5910S
Manufacturer Part Number
5910S
Description
CIRCUIT BREAKER, 10A
Manufacturer
MK (ELECTRIC)
Series
SENTRYr
Datasheet
1.5906S.pdf
(3 pages)
Specifications of 5910S
No. Of Poles
1
Voltage Rating Vac
240V
Mounting Type
DIN Rail
Svhc
No SVHC (18-Jun-2010)
Approval Bodies
BS EN60898, IEE
Breaking Capacity Current Ac
6kA
Breaking Capacity Current Dc
6kA
Current Rating
10A
TECHNICAL DATA SHEET
Sentry
Miniature Circuit Breakers
1:3
Standards and approvals
Sentry MCBs are designed to fully comply with the
relevant requirements of BS EN 60898: 1991.
The MCBs feature positive contact status indication in
accordance with 16th edition IEE Wiring regulations
(537-02-03 and 537-03-02).
©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
PRODUCT RANGE
Type B Single pole
5903s
5906s
5910s
5916s
5920s
5932s
5940s
5945s
5950s
Type C Single pole
8703s
8706s
8710s
8716s
8720s
8732s
8740s
8750s
Retrofit kit
5567s
Rating
3A
6A
10A
16A
20A
32A
40A
45A
50A
Rating
3A
6A
10A
16A
20A
32A
40A
50A
Description
Sentry MCBs are of the thermo-magnetic,
current limiting type and are available with
either Type B or Type C operating characteristics.
The operating dolly may be locked in either
the ON or OFF position without affecting the
ability of the trip mechanism to operate. The
contacts themselves are manufactured from
carefully chosen materials, selected specifically
for their low electrical resistance and low
propensity to weld under fault conditions.
Positive contact status indication
When the green portion of the dolly is visible,
then a contact gap of 4mm has been achieved.
Sentry MCBs may therefore be used as single
pole isolating switches where appropriate.
Terminals
The Sentry MCB features tunnel terminals of
generous capacity, with 25mm
to and including 20A, and 35mm
ratings 32A and above. The terminal screws
are touch proof to IP2X, captive and feature
combination heads.
Retrofit kit 5567s
The Sentry MCB/RCBO retrofit kit is designed
for use when installing MCB/RCBOs into
superceded Sentry Consumer Units. The kit
contains a busbar extension terminal (5562s),
a 100A rated cable and a 25mm
spade connector terminal with clamp screw.
It may be used to fit up to 3 Sentry
MCB/RCBOs. If more need to be installed,
then use the MK 5511s busbar with kit.
2
on ratings up
2
2
capacity
on all
Modes of operation
The mechanism of the Sentry MCB has been
carefully designed and engineered using ther-
mal and magnetic elements to detect over-
currents due to both overload and fault
currents. The MCB will operate and interrupt the
supply to prevent damage to the installation.
The thermal component is a carefully cali-
brated, thermally operated bi-metal element.
Larger overloads and fault current situations
are dealt with using the magnetic tripping
mode of the MCB. This acts very quickly,
overriding the thermal operation.
BS EN 60898 requires the tripping to occur
within 100 milliseconds and the design of the
Sentry MCB allows fault currents of up to
6000A (M6) to be safely interrupted well
within this time scale.
Operating characteristics
TYPE B
The magnetic operating limits are between 3
and 5 times the current rating of the MCB.
Under these conditions the mechanism of a
10A MCB will operate between 30A and 50A
in an overcurrent situation.
TYPE C
In the case of Type C MCBs, the magnetic
operating limits are between 5 and 10 times
the current rating of the MCB. Under these
conditions the mechanism of a 10A MCB will
operate between 70A and 100A in an over-
current situation.
Sentry
®
MCBs
Edition 09-02
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5910S Summary of contents
Page 1
... TECHNICAL DATA SHEET Sentry Miniature Circuit Breakers 1:3 PRODUCT RANGE Type B Single pole Rating 5903s 3A 5906s 6A 5910s 10A 5916s 16A 5920s 20A 5932s 32A 5940s 40A 5945s 45A 5950s 50A Type C Single pole Rating 8703s 3A 8706s 6A 8710s 10A 8716s 16A 8720s ...
Page 2
TECHNICAL DATA SHEET Sentry Miniature Circuit Breakers 2:3 TECHNICAL SPECIFICATION Electrical Voltage rating: 250V/415V a.c. Operating frequency: 50Hz Rated short circuit capacity Icn: 6000A Service short circuit capacity Ics: 6000A Energy limiting class: 3 Physical Ambient operating temperature: –25°C to ...
Page 3
TECHNICAL DATA SHEET Sentry Miniature Circuit Breakers 3:3 ©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 Dimensions (mm 5945 ...