URM
URM - NH1
Rated Breaking Test
Class Standard(s)
Rated Voltage
[U n ]
Capacity
Voltage aR
IEC 60269-4 IEC 60269-4 VDE 0636-4
690V AC - IEC 700V AC - UL
120kA 120kA
760V AC
500V DC /450V DC - IEC
30kA, L/R = 10ms, 550V DC 125A - 400A, 500V DC 450A - 700A
UL File E180276
Pre-arcing I 2 t
Total I 2 t @ 690V AC [A 2 s]
DC
Total
Power
W/ Combi-Indicator
W/ Combi-Indicator
Rating /
I 2 t *
microswitch and fitting for
rated
and fitting for microswitch
loss
voltage @ 500V DC
@ RC
[A] Rated current*
rec UL
UL rec
[A 2 s]
140 000 160 000 210 000 280 000 56 000 90 000 46 000 29 000 14 000 6 800 3 200 [A 2 s] 370 000
[W]
2021132.125RC75 2021132.160RC95 2021132.200RC120 2021132.250RC150 2021132.315RC190 2021132.350RC210 2021132.400RC240 Article Number
570
73 000 120 000 150 000 185 000 230 000 340 000 440 000 3 900 8 200 16 000 35 000 55 000
700RC380 200RC120 250RC150 315RC190 350RC210 400RC240 450RC270 500RC300 550RC330 630RC350 125RC75 160RC95
500 500 450 450 500 500 450 450 450 500 500 500
15 13 11 20 16 32 27 28 26 23 26 24
1 200 2 500 5 300 8 200
10 000 16 000 32 000 36 000 47 000 64 000 84 000
2021132.450RC270 2021132.500RC300 2021132.550RC330 2021132.630RC350 2021132.700RC380
*L/R =10ms
Weight [kg / 1]
0.43
* Rating and rated current will be shown in a kind of a double designation and are separated by "RC" ("RC" = rated current). The rating refers only to the to the time/current characteristics, whereas the rated current indicates the maximum continuous current under standard test conditions and takes the maximum power consumption of standard fuse holders according to IEC 60269-2 into account. By using the RC-value, the derating for cyclic loads "A2" = 1 can be applied.
** Cyclic load factor "A2=1" can only be in combination with the given "RC" value
Coefficients for Heavy Duty Applications
B1 max 1.25
a
Cf3 0.8
0.6 B2
A2**
1
130
Dimensions
[in / mm]
450A
e 2 e 1 e 4 b 1 a 1 a 5
2.56 / 65
2.56 / 65
5.32 / 135 5.32 / 135
2.03 / 51.5 1.65 / 42 0.55 / 14 1.57 / 40 0.79 / 20 0.24 / 6
0.79 / 20 0.24 / 6 1.97 / 50 1.97 / 50 0.55 / 14 1.57 / 40
f
c 1
Accessories
Article Number
Page
Page
Article Description
Article Description
Article Number
Fuse base, 3-Pole Fuse base, 1-Pole
2800204 2800202
2100301 2100303
Microswitch (red hammer)Standard level (UL File E309038) Low level
551
540
portal: www.siballc.net e-mail: info@sibafuse.com
423
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