Range

SIZE Un (V AC) In (A) REFERENCE
NH3 690V 355 371450
400 371455
450 371463
500 371465
630 371470

Technical data

Rated voltage 690V AC
550V DC (L/R=10ms)
Rated currents 355A...630A
Rated breaking capacity 100kA @690V AC
30kA @550V AC
Utilization category gS
Rated frequency 42...62Hz
Storage temperature -40°C ... 80°C
Operating temperature * -25°C ... 60°C
* For ambient temperatures higher than 25ºC it is necessary to apply a derating in maximum current.

Standards

IEC/EN 60269-1
IEC/EN 60269-4
RoHS Compliant

Dimensions

A B C D E F G H I J K L
68 62 73 150 32 10 9,5 6 70 60 75 87

Weight  1,02kg

t-I characteristics

Cut-off characteristics

Power dissipation

RATED CURRENT
(A)
REFERENCE POWER DISSIPATION
(W)
PREARCING I2t
(A2s)
TOTAL I2t
(A2s)
TOTAL I2t 690V
(A2s)
355 371450 39,6 22,76 54240 151700
400 371455 42,7 24,3 75760 211900
450 371463 46 26,3 114770 320970
500 371465 47,1 27,6 165270 309000
630 371470 60,4 34,3 303060 847570

Compatible

NH3 ST 690V/800V fuse base
U 690V
800V
In 630 A

Other sizes

U 690V AC 690V AC 690V AC 690V AC
IN 20A...100A 125A | 160A 125A...280A 250A...450A
Breaking capacity 100kA
30kA @440V DC
100kA
30kA @440V DC
100kA
30kA @550V DC
100kA
30kA @550V DC

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