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NHG MCCBs TECHNICAL SPECIFICATION 107


NHGMCCB SPECIFICATION • Specification


• Current Range 46 I2 t 105 106


• Ue Rated Operation Voltage • Ui Rated Insulation Voltage • Rated Frequency • Release


• Adjustment


• Ambient Range • Humidity Range • Weight


104 1,000 10,000 PROSPECTIVE CURRENT


SHORT CIRCUIT BREAKING CAPACITY Type


Ue


220 V 380 V 415 V


Ics = 50% Icu


INSTANTANEOUS TRIP BANDS SP


25 – 32A 40 – 80A


500A 800A


100 – 125A 1250A


TERMINALS Front-connected clamps – 25A to 125A – 70mm2 cable – 10mm strip


MAXIMUM EARTH LOOP IMPEDANCES FOR TRIPLE POLE MCCBS Zs (ohms) for Uo = 240V~ Current Rating (A)


0.4 Seconds Disconnection Time


16/25 0.17Ω


5.00 Seconds Disconnection Time 0.96Ω 0.4 Seconds Disconnection Time


16/25 0.43Ω


32


0.17Ω 0.75Ω


32 5.00 Seconds Disconnection Time 0.96Ω


0.43Ω 0.75Ω


40


0.13Ω 0.60Ω


40


0.27Ω 0.60Ω


Phase Ctrs Phase Ctrs 78.50


26.25 26.00


Use M3 Fasteners


I T 26.25 50


0.13Ω 0.48Ω


50


0.27Ω 0.48Ω


MAXIMUM EARTH LOOP IMPEDANCES FOR SINGLE POLE MCCBS Zs (ohms) for Uo = 240V~ Current Rating (A)


TP


400A 600A 600A


Non-adjustable ±10%


GB Icu


SP/TP 30 16 16


GN Icu TP 30 25 25


AUXILIARY EQUIPMENT


NHG MCCBs Auxiliary Contact Ratings (A) Voltage Resistive Tungsten Load Inductive


AC 125 250


DC 30 50


125


Load (A) 3


3 3


1 0.5


NC (A) NO (A) 0.5


0.5 3


0.7 0.4


0.5 0.5


0.5 0.7 0.4


Load (A) 3


3 3


1 0.05 100,000 • Mechanical Duration


BSEN60947-2 16 – 125A


240V SP 415V TP 500V AC 50/60Hz


Thermal Magnetic None


-20°C to 55°C 0 – 90%


SP - 0.4kg TP - 0.95kg 8000 operations


63


0.13Ω 0.38Ω


63


0.27Ω 0.38Ω


80


0.13Ω 0.30Ω


80


0.27Ω 0.30Ω


100


0.13Ω 0.24Ω


100


0.17Ω 0.24Ω


Interphase Barriers 33.50


Terminals Suitable for 10mm Strip or 70mm2


Cable


125


0.13Ω 0.19Ω


125


0.17Ω 0.19Ω


O R


Use M4 Fasteners


19.50 Fixing Ctrs


26.25 Fixing Ctrs


70.50 77.50 83.50


97.00 max


Operating Lever Positions 'I' Breaker Closed 'O' Breaker Open 'T' Breaker Tripped by Release 'R' Reset Positions from Tripped


NHG Panelboard MCCBs 120.00


74.00 Fixing Ctrs


120.00


30.00


94.00 Fixing Ctrs


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