Product Overview
Altech 50NH00GL NH 00 C Knife-Blade Fuse Link, 50 A gL/gG, 500 V AC, 120 kA Breaking Capacity
Condition
Unused, new old stock (NOS). Markings legible: ernst, NH 00 C, 120 kA, 50 A gL/gG, ~500V, DIN VDE 0636/201, IEC 60269, DIN 43620, with VDE and CE marks. Sold each.
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Product Overview
Altech 50NH00GL is a size NH 00 C fuse link rated 50 A, operating class gL/gG, 500 V AC, with 120 kA breaking capacity. 50NH00GL is Altech's catalog number; the fuse body itself is marked ernst. Its knife-blade contacts follow DIN 43620, so it seats in NH size 00 fuse bases and NH00 fuse switch-disconnectors in low-voltage distribution panels and machine control cabinets.
Key Features
- Altech catalog number 50NH00GL, body marked ernst
- Size NH 00 C, knife-blade contacts to DIN 43620
- Rated current 50 A
- Operating class gL/gG, the IEC general-purpose full-range class for cable and line protection
- Rated voltage 500 V AC
- Breaking capacity 120 kA
- Red indicator on the front face
- Knurled metal end plates with lugs for an NH fuse handle
- Marked to DIN VDE 0636/201 and IEC 60269, VDE and CE marks
Applications
- Replacing a blown 50 A link in an NH00 fuse base on a low-voltage distribution board
- Line and cable protection for a sub-panel or machine feeder behind an NH00 fuse switch-disconnector
- Keeping a matched spare on hand for European-built machinery that came with NH fuse protection
Frequently Asked Questions
What does it fit?
NH size 00 fuse bases and NH00 fuse switch-disconnectors with DIN 43620 knife contacts. It goes in and comes out with an NH fuse handle that grips the lugs on the end plates.
The fuse says ernst, not Altech. Is it the right part?
Yes. 50NH00GL is Altech's catalog number for this link, and the body carries its ratings: NH 00 C, 50 A gL/gG, 500 V AC, 120 kA.
What does the 120 kA on the body mean?
It is the breaking capacity, the largest prospective short-circuit current the link is rated to clear. The link belongs where the available fault current at its base is at or below that figure.
A fuse link does its real work exactly once, opening the circuit so the cable behind it does not have to burn. This one goes in the switch-room spares drawer, where it waits for that one job.
