Switch Disconnectors

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Switch Disconnectors
3NJ62 In-Line Switch Disconnectors with Fuses up to 630 A
Introduction
7/92 Siemens LV 10 · 2014
7
■ Technical specifications
Main devices of sizes 00 and 1
1) The fuse is available from Lawson Fuses (UK) and does not correspond to
BS 88.
Size 00 1
Switch disconnectors with fuses
type 3NJ62...
NH ...02-3
...02-4
...03-1
...04-1
...04-2
...03-3
...03-4
...12-3
...12-4
...13-1
...14-1
...14-2
...13-3
...13-4
BS ...43-3 ...53-3 ...62-3
...62-4
...63-3
...63-4
...72-3
...72-4
...74-1
...74-2
...73-3
...73-4
Breaking capacity H H H S H H S H
Rated insulation voltage Ui V 1000
Rated impulse withstand voltage Uimp V 8000
Rated operational current I e A 63 100 160 - 160 125 160 125 250
For LV HRC fuse links
acc. to IEC 60269
- - 00 and 000 1
For BS fuse links acc. to BS 88 A3 A3 00T1) B2
Rated operational voltage Ue
• At 50/60Hz rated frequency V 690 -- -- 500 690 500 690 690
• At DC V -- -- 230 440 -- -- -- -- 230 440 - -
Utilization category AC23B DC23B DC21B AC22B AC23B DC23B DC21B AC22B AC23B
Rated conditional short-circuit current
• Short-circuit strength (rms value) kA 100 60 100 100 60 100
• Short-circuit making capacity
(rms value)
kA 66 60 55 66 60 55 66
Rated making capacity
• p.f. = 0.65 A -- -- -- -- 480 375 -- -- -- -- 750 --
• p.f. = 0.45 A 630 1000 -- -- -- -- -- -- -- -- -- --
• p.f. = 0.35 A -- -- -- -- -- -- 1600 1250 -- -- -- 2500
Rated breaking capacity
• p.f. = 0.65 A -- -- -- -- 480 375 -- -- -- -- 750 --
• p.f. = 0.45 A 504 800 -- -- -- -- -- -- -- -- -- --
• p.f. = 0.35 A -- -- -- -- -- -- 1280 1000 -- -- -- 2000
Endurance
Operating cycles total 2000 1600 1600
• Electrical (690 V, p.f. = 0.65) 300 200 200
Power loss
(no fuse links)
W 7 17 43 78
Permissible ambient temperature °C -5...+55
Permissible mounting positions Horizontal and vertical with bottom connection
Degree of protection
(in operating state)
IP41
Connection type Main conductor connections
Cable lug connection
• Conductor cross-section
(Al/Cu, solid or stranded) according to
DIN 46235 (Cu) and DIN 46239 (Al)
mm2 1x 10-95
2x 16-70
1x 25-240
2x 25-70
• Screw size M8 M12
• Torque Nm 15 30
Terminal connection
• Conductor cross-section (Al/Cu), rm mm2 1x 10-50 1x 16-185
• Conductor cross-section (Al/Cu), re mm2 1x 10-50 1x 16-150
• Conductor cross-section (Al/Cu), sm mm2 1x 16-95 1x 35-240
• Conductor cross-section (Al/Cu), se mm2 1x 16-95 1x 35-300
• Required torque Nm 15 25
© Siemens AG 2014