Type NH Square Body Fuses & Bases
DENCO Type NH square body fuses are knife-blade fuses in sizes NH000 to NH5, supplied to German, French and American standards and in press-pack form. Matching Type NH fuse bases are available from 2 to 2000A at 690V.
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Specifications
| Parameter | Value |
|---|---|
| AC voltages | 500V/660V, 690V/800V, 1000V/1300V, 1000V/1250V (AC) |
| Ampere range | 2A to 2000A |
| Interrupting rating | 80kA and 120kA |
| Sizes | NH000, NH00, NH0, NH1, NH2, NH3, NH4, NH5 |
| Design types | German Standard, French Standard, American Standard, Press-Pack |
| Fuse bases | Type NH, 2 to 2000A, 690V |
| Utilization categories | aR, gL/gG, aM, gTR, gB, gR |
Applications
- DC common bus and DC drives
- Power converters and rectifiers
- Reduced voltage starters
- Mining applications (gB)
Limits and boundaries
- Utilization category must match the duty — aR is semiconductor protection, not general purpose
Standards and testing
- Designed to DIN 43620
- Designed to IEC 60269
- Designed to DIN 43653
- Designed to VDE 0636
- Designed to BS 88
Wording reflects the evidence DENCO holds. “Designed to” a standard is not the same as certified or listed to it; where a certification exists we publish the certificate number.
Technical documents
Data sheets, dimensional drawings and time-current curves for this family are available on request. Ask for the documents you need.
What we need to quote
Voltage and whether the system is AC or DC, continuous current, required interrupting rating, physical dimensions and mounting, any indicator requirement, and the standard or approval you must meet. A photograph or drawing of the existing part is usually the fastest route.
Technical review
Specifications on this page are quoted from DENCO’s product catalog. Confirm any rating against DENCO engineering before specifying.