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Powerpact 4 panelboards
Introduction
Technical
Section 11
Dimensions
Section 12
NSX moulded case circuit breakers
Powerpact 4 panelboards have a unique interconnection system which
automatically gives the correct torque settings. 1, 2, 3, and 4 pole devices may be
mixed to suit the installation needs without loss of space.
Metering
n
A PowerLogic PM5000 series multi-function digital meter is fitted as standard
to monitor the incoming supply on style G and as an option on other styles.
It is also used for all outgoing metering. Readings available voltage, current,
frequency, power, energy, demand values and harmonic distortion. The meter
also provides a pulse output for kWh and kVArh.
n
A side extension cubicle may be fitted on styles D/E/G which has provision
for metering outgoing circuits, refer to metering on page 2/18. This cubicle also
acts as a cable extension box.
Technical data for circuit breakers
Manufactured and tested to BS EN 60947-2
Ics
100% Icu 16 - 630A, 75% Icu 800 - 1600A
Calibration temperature
40
0
C
Thermal adjustment
16 - 250A = 0.7 - 1 x In
(3 and 4 pole)
400 - 630A = 0.4 - 1 x In
800 – 1600A = 0.4 x In
MCCB Icu & terminal size
16 - 100A 36kA 6mm bolt
160 - 250A 36kA 8mm bolt
400 - 630A 50kA 10mm bolt
800 – 1600 50kA 2 x 12mm bolts
Earth fault protection
n
May be added to any 4 pole MCCB
n
Sensitivities 30, 300mA 1, 3, 10A
n
Time delay 0, 60, 150, 310 milli - seconds
800/1250/1600A breakers
800/1250/1600A breakers are fitted with Micrologic 5.0 control units to enable full
discrimination with the outgoing breakers to be obtained. Alternative control units
may be fitted if required.
250A panelboards
The main incoming device is side mounted at the bottom right hand side. If a 4
pole incomer is used the number of outgoing ways available is reduced by one
single pole way. The incoming terminal shroud can be positioned to suit a 3 or 4
pole incoming breaker.
250A powerboard
One 3 pole terminal shield for a 250A breaker is supplied as standard for the main
incoming terminals. Two adjacent 3 or 4 pole toggle operated breakers may be
mechanically interlocked using Part number LV429354.
400/630A panelboard
The line (supply) terminals on the incoming device must be suitably shrouded.
The board is supplied with 1 or 3 pole shroud for a 400/630A breaker. For other
breakers suitable terminal shields should be ordered separately:
250A 3 pole LV429323
250A 4 pole LV429324
400/630A 4 pole LV432595
These terminal shields are supplied singly.