DIN-rail fuse holder
1.6 A fuse holder for SMGw and control box – three connection types on the DIN rail
The DIINNO DIN-rail fuse holders (1.6 A) protect the smart meter gateway (SMGw) or the control box (Steuerbox) in the meter panel. All versions share the same design: pluggable fuse drawer for tool-free fuse replacement without removing the holder, mounting on TH35, 93 × 18 × 33 mm housing made of polycarbonate (UL94 V-0). The FNN-compliant device protection fuse (max. 1.6 A) is included in the scope of delivery.
The only difference is the connection type: NK-HSS-A with two pluggable outgoing connections, NK-HSS-B as a space-saving direct plug-in version and NK-HSK with spring-clamp terminals for direct connection of single-core wires (0.2–1.5 mm²). As a result, the NK-HSK also has different ratings – see the comparison table.
Request a quotePlaced on the EU market by: DIINNO GmbH, Brunsbütteler Damm 93, 13581 Berlin, Germany
We sell exclusively to businesses (entrepreneurs within the meaning of Section 14 of the German Civil Code, BGB), legal entities under public law and special funds under public law. No sales to consumers.
Product selection
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Versions compared
All three versions share the same design (1.6 A, pluggable fuse drawer, TH35, 93 × 18 × 33 mm) and differ in connection type and ratings – the rows highlighted in blue show the differences.
Features
- Pluggable fuse drawer for fast and safe fuse replacement – tool-free, without removing the holder
- Three connection types: two pluggable outgoing connections (-A), direct plug-in (-B) or spring-clamp terminals for single-core wires (NK-HSK)
- DIN-rail mounting for simple, standards-compliant installation in the meter cabinet
- Integrated FNN-compliant device protection fuse (max. 1.6 A; 6.3 × 32 mm; 500 V AC)
- Robust PC housing (UL94 V-0)
| Attribute | NK-HSS-A two pluggable outgoing connections | NK-HSS-B direct plug-in, space-saving | NK-HSK spring-clamp terminals for single-core wires |
|---|---|---|---|
| Connection type | pluggable connection terminals, 2 × pluggable outgoing connection | pluggable connection terminal, direct plug-in connection | spring-clamp terminals with lever (L, N) + pluggable terminal |
| Conductor cross-section | — | — | 0.2–1.5 mm² (28–16 AWG) |
| Stripping length | — | — | 8–9 mm |
| Rated voltage | 500 V | 500 V | 320 V |
| Rated impulse voltage | 6 kV | 6 kV | 4 kV |
| Typical choice | when two outgoing connections are needed | when space in the meter panel is limited | when single-core wires are connected directly |
| Rated current | 10 A | 10 A | 10 A |
| Fuse – type | miniature fuse 6.3 × 32 mm (IEC 60127-2) | miniature fuse 6.3 × 32 mm (IEC 60127-2) | miniature fuse 6.3 × 32 mm (IEC 60127-2) |
| Fuse – characteristic | F (fast-acting) | F (fast-acting) | F (fast-acting) |
| Fuse – rated current | 1.6 A (FNN-compliant: max. 1.6 A) | 1.6 A (FNN-compliant: max. 1.6 A) | 1.6 A (FNN-compliant: max. 1.6 A) |
| Fuse – rated voltage | AC 500 V | AC 500 V | AC 500 V |
| Fuse – breaking capacity | 50 kA at AC 500 V | 50 kA at AC 500 V | 50 kA at AC 500 V |
| Fuse – construction | ceramic tube with arc-quenching filling | ceramic tube with arc-quenching filling | ceramic tube with arc-quenching filling |
| Fuse replacement | pluggable fuse drawer, tool-free | pluggable fuse drawer, tool-free | pluggable fuse drawer, tool-free |
| Status indicator | none | none | none |
| Dimensions (L × W × H) | 93 × 18 × 33 mm | 93 × 18 × 33 mm | 93 × 18 × 33 mm |
| Mounting | DIN rail TH35 (DIN EN 60715) | DIN rail TH35 (DIN EN 60715) | DIN rail TH35 (DIN EN 60715) |
| Housing material / colour | PC, UL94 V-0 · blue | PC, UL94 V-0 · blue | PC, UL94 V-0 · blue |
| Operating temperature | −25 °C to +55 °C | −25 °C to +55 °C | −25 °C to +55 °C |
| Product standard | IEC 60947-7-3 · fuse link IEC 60127-2 | IEC 60947-7-3 · fuse link IEC 60127-2 | IEC 60947-7-3 · fuse link IEC 60127-2 |
| Conformity | CE · LVD 2014/35/EU · RoHS · REACH | CE · LVD 2014/35/EU · RoHS · REACH | CE · LVD 2014/35/EU · RoHS · REACH |
| Packaging unit | on request | on request | on request |
Height 33 mm including plugged-in terminals (housing alone 23 mm). Selection guide: NK-HSK if single-core wires are connected directly; NK-HSS-A if two pluggable outgoing connections are needed; NK-HSS-B if space in the meter panel is limited. Highlighted in blue = distinguishing feature.
Documents
NK-HSS (-A/-B) and NK-HSK each have their own datasheet. EU declaration of conformity and RoHS/REACH declaration on request.
- Datasheet NK-HSS (-A and -B) (German) Open
- Datasheet NK-HSK (German) Open
- EU declaration of conformity available on request on request
- RoHS & REACH declaration available on request on request
Tender text NK-HSS
Short text for use in bills of quantities – versions -A and -B.
NK-HSS – DIN-rail fuse holder with integrated FNN-compliant device protection fuse 1.6 A for protecting a smart meter gateway (SMGw) or control box in the meter panel. Rated voltage 500 V, rated current 10 A, rated impulse voltage 6 kV. Fuse link as miniature fuse 6.3 × 32 mm to IEC 60127-2, tripping characteristic F (fast-acting), 1.6 A / AC 500 V, breaking capacity 50 kA, ceramic tube with arc-quenching filling; tool-free fuse replacement via pluggable fuse drawer. Mounting on TH35 rail to DIN EN 60715, dimensions 93 × 18 × 33 mm, polycarbonate housing (UL94 V-0) in blue, operating temperature −25 °C to +55 °C. Two versions: NK-HSS-A with two pluggable outgoing connections and NK-HSS-B as space-saving direct plug-in version. Product standard IEC 60947-7-3, fuse link IEC 60127-2; marking CE, LVD 2014/35/EU, RoHS, REACH. Make: DIINNO GmbH or equivalent.
Tender text NK-HSK
Short text for use in bills of quantities – version with spring-clamp terminals.
NK-HSK – DIN-rail fuse holder with integrated FNN-compliant device protection fuse 1.6 A for protecting a smart meter gateway (SMGw) or control box in the meter panel, designed with conventional connection terminals for direct connection of single-core wires. Rated voltage 320 V, rated current 10 A, rated impulse voltage 4 kV. Fuse link as miniature fuse 6.3 × 32 mm to IEC 60127-2, tripping characteristic F (fast-acting), 1.6 A / AC 500 V, breaking capacity 50 kA, ceramic tube with arc-quenching filling; tool-free fuse replacement via pluggable fuse drawer. Connection via spring-clamp terminals with operating lever (L, N) for conductor cross-sections 0.2 to 1.5 mm² (28–16 AWG), stripping length 8 to 9 mm, plus a pluggable connection terminal. Mounting on TH35 rail to DIN EN 60715, dimensions 93 × 18 × 33 mm, polycarbonate housing (UL94 V-0) in blue, operating temperature −25 °C to +55 °C. Product standard IEC 60947-7-3, fuse link IEC 60127-2; marking CE, LVD 2014/35/EU, RoHS, REACH. Make: DIINNO GmbH or equivalent.
