590 / 759
mkelectric.co.uk
CIRCUIT PROTECTION
590
Standards and approvals
All Sentry RCDs are designed to fully comply
with the requirements of BS EN 61008:1995.
IEC 1008:1990
They all feature positive contact status indication
in accordance with the 17th Edition IEE Wiring
Regulations (537.2.2.1 and 537.3.2.2).
TECHNICAL SPECIFICATION
ELECTRICAL
RATED MAKING AND BREAKING CAPACITY /M
16 - 40A = 500A
63 - 80A = 800A
100A = 1000A
Type AC
RATED SHORT-CIRCUIT CURRENT / INC
16A - 40A = 10,000A (63A Fuse)
63A - 80A = 10,000A (100A Fuse)
100A = 10,000A (125A Fuse)
RATED RESIDUAL SHORT-CIRCUIT CURRENT /IΔM
16 - 100A = 10,000A
RATED VOLTAGES
2 pole devices, 110V and 230V
4 pole devices, 230V to 440V
OPERATING VOLTAGES
2 pole devices, 110V - 100V to 250V
230V - 100V to 250V
4 pole devices, 185V - 440V
TRIPPING TIME
1 x IΔn ≤300ms
5 x IΔn ≤40ms
Time delay version
1 x IΔn - 150 - 500ms
5 x IΔn - 50 - 150ms
PHYSICAL
AMBIENT OPERATING TEMPERATURE
–25°C to +40°C
IP RATING
Front face after installation of enclosure IP40
TERMINAL CAPACITY
Solid stranded - 1 x 1.5 - 50mm
2
Flexible with ferrule - 1 x 1.5 - 35mm
2
TIGHTENING TORQUE
3Nm
MAX. INSTALLATION ALTITUDE
2000 metres
FEATURES
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Meet BS EN and IEE Wiring Regulation
requirements
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Extensive range to suit all
specifications
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Protect against unwanted tripping
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Positive contact status indication
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Suitable for most residential,
commercial and light industrial
applications
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Offer a high degree of protection
against electrocution in accidental
shock hazard situations
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Two module, double pole units
available up to 100A
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Indication of earth fault, via central
dolly position
Sentry Technical
Industrial 10kA Residual Current Devices (RCDs)
Description
The Sentry range of RCDs offers a comprehensive selection of devices designed to
meet most residential, commercial and light industrial requirements.
The range includes two and four pole, a.c., d.c. fault current sensitive and time
delayed models and a selection of current ratings from 16 to 100A is available in a
variety of tripping sensitivities.
When in the OFF position a contact gap of 4mm is present, enabling Sentry RCDs
to be used as isolating switches where appropriate.
Positive indication of the opening of the contacts is only given when contact status
indicator shows green.
The operating dolly may be locked in either the ON or OFF position without affecting
the ability of the trip mechanism to operate, i.e. the RCD is ‘trip-free’. It is not
possible to hold the contacts closed when a fault condition exists.
All Sentry RCDs incorporate a filtering device to provide protection against transient
surges in the supply to the unit, thus reducing the occurrence of unwanted tripping.