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mkelectric.co.uk
CIRCUIT PROTECTION
576
Standards and approvals
All Sentry consumer units are designed to fully
comply with the requirements of
BS EN 61439-3.
TECHNICAL SPECIFICATION
ELECTRICAL
MAXIMUM CURRENT RATING
All Sentry consumer units have a maximum rating
of 100A except the 4 module range which is rated
at 63A
TERMINAL CAPACITY
16mm
2
earth and neutral
RATED FREQUENCY
50Hz
RATED OPERATIONAL VOLTAGE
Consumer unit:
220-250V
RATED INSULATION VOLTAGE
Consumer unit:
300V
SHORT CIRCUIT WITHSTAND
16kA rms (based on the use of a BS 1361 Type 2
fuse of rating not exceeding 100A)
EARTHING SYSTEM
Suitable for use with TN-S, TN-C-S and TT systems
SPLIT LOAD
Split load units are supplied with a pre-fitted switch,
RCD(s) and suitable cables
FEATURES
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Attractive styling
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Modular design
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Suitable for most residential,
commercial and light industrial
applications
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Single, dual and RCD consumer units
available for 17th Edition compliance
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Fully comply with British and
European Harmonised Standards
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Available as an empty enclosure or
prefitted with switch disconnector and
up to 2 RCDs
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Custom build options available
Sentry Technical
Metal Consumer Units and Enclosures
Description
Specific consumer unit configurations have been designed to provide flexible
solutions in meeting the requirements of the 17th Edition with regards to RCD
protection for circuits, cables and socket outlets. MK Sentry Metal Consumer units
allow for protected and unprotected ways with the circuits being split across up to
2 RCDs, whilst the labelling sheet allows for full identification of all circuits.
Sentry Metal Consumer units and enclosures are designed on a modular basis,
with 4 to 21 module enclosures in the range, to accommodate a wide variety of MK
modular protection and control products. Sentry Metal Consumer units provide a
housing with facility for earthing the metal box.
The enclosures are provided with ample wiring space and cable entry points.
Colours / finishes
All Sentry Metal Consumer units are colored in white (UV protected powder coated paint).
Certain models are provided with a pre-assembled split load arrangement with
switch and up to 2 RCDs. The range is complemented by a versatile selection of
small four module enclosures suitable for housing RCDs or other combinations of
Sentry products.
All Sentry Metal Consumer Units have neutral and earth terminal bars with 16mm
2
capacity for solid stranded copper cables.
For enquiries where large number of similarly designed consumer units i.e.
specified. MK can provide complete pre-assembled factory built units, subject to
certain conditions. For further information please contact the MK Electric Technical
Services Department (01268 563720).