Wöhner SLS-00 Strip-Line Fuse Disconnector

Teile-Nr.: 33234

Grundlegende Informationen

Marke: Wöhner, Deutschland

Vollständiger Produktname: Strip-Line Fuse Disconnector SLS-00

Teilenummer: 33234

Fuse Size: NH00

Nennstrom: 160 A

Nennspannung: Wechselstrom 690 V

Anwendbares System: 60Classic Busbar System (Strip Busbar / Cable Branch System)

Erklärung des Modellcodes

1. SLS = Strip-Line Switch
2. 00 = NH00 Fuse Size
3. 33234 = Unique order number for this variant

Struktur & Installation

Montagemethode: Direct clip-on installation onto Wöhner 60mm strip busbar (60Classic System)

Verkabelungsplan: Cable inlet/outlet at bottom; optional connection terminals available

Funktion: Isolierung + Kurzschlussschutz (via NH fuse); visible isolation contact to meet isolation requirements

Typische Anwendungen: Busbar power distribution, cable branch boxes, power branches in control cabinets, front-end protection for inverters

Reference Models of the Same Series (For Selection & Ersatz)

LTS-00 33200: Fixed-type NH00 fuse disconnector (different structure, not directly interchangeable)

SLS-1 / 33241: NH1 size, 250A strip-line switch

SLS-2 / 33248: NH2 size, 400A strip-line switch

Hinweise zur Schlüsselauswahl

1. SLS-00 (33234) is a single-pole unit. 3 units are required for a three-phase circuit;
2. Compatible exclusively with 60Classic strip busbar, not applicable to QCB flat busbar system;
3. NH00 fuses are not included, separat zu bestellen;
4. Brand replacement reminder: Verify busbar module pitch, mounting spacing and wiring space when switching to alternative brands.

Wöhner SLS-00 Bestell-Nr. 33234

1. Gesamtabmessungen (Single-pole Unit)

Modell: SLS-00 / 33234

Overall Dimension W × H × D: 49 × 455 × 136 mm

Nettogewicht: Ca. 1.4 kg per unit

Matching Busbar: 60Classic 60×10mm strip busbar

3-phase Layout: 3 units mounted side by side, center distance between phases 60 mm (busbar module pitch)

Mandatory Installation Rule: Vertical mounting with operating handle facing upward; horizontal or reversed installation is prohibited.

2. Verkabelungsspezifikation & Anzugsdrehmoment (Construction Standard)
3. Output terminal bolt: M8, Spanner SW13
4. Recommended tightening torque: 8～10 N·m
5. Compatible copper cable cross-section: 16～70 mm² (single-core copper cable / Kabelschuhe)
6. ⚠️ Critical Restriction: Direct connection of aluminum cables forbidden. Copper-aluminum transition terminals are mandatory.
7. Recommended cable stripping length: 12 mm
8. Supplementary Full Electrical Parameters

4. Reference Order Codes for Original Wöhner NH00 Fuses

Fuses not supplied with the switch, separate order required

NH00 63A：31063

NH00 100A：31100

NH00 125A：31125

NH00 160A：31160 (Maximum applicable rating)

gG characteristic for general distribution; aM motor-protection fuses available upon request.

5. Optionales Zubehör (Separate Order)
6. 33224 Rhombus connection terminal 16–70mm² (for direct cable connection)
7. 03727 Clamp terminal 1.5–70mm²
8. 01182 Multi-way plug terminal for branched cables
9. Fuse monitoring contact: Auxiliary signal contact available for remote fuse blow alarm
10. Primary Circuit Wiring Logic

Standard Wiring Scheme (Am häufigsten verwendet)

Top side → Clipped onto 60Classic busbar (Supply Side)

Bottom M8 terminals → Output cables (Load Side)

3-phase Circuit Configuration: 3 pieces of SLS-00 (33234) installed on L1/L2/L3 respectively

Neutral conductor N: Not routed through this switch; branched directly from neutral busbar. This device has no neutral pole.

Anwendung: Front-end isolation and protection for inverters, motors and power branches in control cabinets.

Text-based Primary Circuit Diagram (Directly usable for drawings)

60×10 Strip Busbar L1 → SLS-00(33234) → Cable → Load

60×10 Strip Busbar L2 → SLS-00(33234) → Cable → Load

60×10 Strip Busbar L3 → SLS-00(33234) → Cable → Load

7. Installation, Inbetriebnahme & Fehlerbehebung

Installationsverfahren

1. Clean busbar contact surface; remove oil stains and burrs;
2. Clip the unit onto 60Classic busbar from top down, confirm full locking of clips;
3. Insert NH00 fuse and close operating handle;
4. Crimp cable lugs on cables, tighten M8 bolts stepwise to specified torque;
5. Measure insulation resistance ≥20MΩ with 1000V megger before energization.

Häufige Fehler

1. Excessive Heating

Ursachen: Insufficient tightening torque, poor busbar contact, undersized cable cross-section

Abhilfe: Klemmen wieder festziehen, inspect busbar clamping position

2. Fehler beim Schließen / Loose closing position

NH fuse dimensional deviation, incomplete locking of switch clips on busbar

3. Frequent fuse blowing

Distinguish root cause: Short-circuit fault, undersized fuse rating, high starting inrush current of load

8. Ersatz & Migration Reminders
9. SLS-00 (33234) ≠ LTS-00 (33200)

SLS: Clip-on type for strip busbar (60Klassiker)

LTS: Fixed panel mounting type; not directly interchangeable

2. Not suitable for CrossBoard flat busbar system;
3. Environmental limits: Ambient temperature -5℃～+40℃; avoid condensation, heavy dust and corrosive gas.

Application Scenarios of Wöhner SLS-00 (Part No.33234) NH00 Strip-Line Fuse Disconnector

Core Product Recap: Designed for 60Classic 60mm strip busbar system, einpolig, NH00 fuse, max.160A, AC690V, clip-on mounting, integrated isolation and short-circuit protection for modular quick branch power distribution.

Kernvorteil: No drilling required on busbar; direct clip-on installation enables flexible cabinet circuit expansion and convenient on-site modification, widely adopted for power branch circuits.

1. General Industrial Control Cabinets (Most Common Application)
2. Branch power distribution inside PLC control cabinets and low-voltage power cabinets

The cabinet main busbar adopts Wöhner 60Classic strip busbar; SLS-00 is deployed for branch protection of motors, Ventilatoren und Pumpen.

✅ Advantage: New loads can be added without power cut and modification of main busbar via direct installation of extra switches.

2. Front-end protection and isolation for inverters & soft starters

Installed at inverter incoming side to provide visible maintenance isolation and short-circuit protection;

⚠️ Selection Tip: Adopt aM characteristic NH00 fuses for motor circuits; gG fuses for general distribution circuits.

3. Power branch for air compressors, cooling water pumps and circulation fans

Branch protection for medium & small auxiliary motors (≤90kW 3-phase 380V).

2. Automatisierungsproduktionslinien & Machine Building Industry
3. Central power supply cabinets for packaging machines, injection moulding machines and machine tools

Multiple machines share one set of 60Classic strip busbar. Each machine is equipped with a set of 3-pole configuration (3 single-pole SLS-00). Single machine maintenance can be implemented independently without interrupting the whole production line.

2. Electrical cabinets for conveyor lines and automated warehouses

Modular power distribution for dispersed drive motor branches, facilitating production line expansion and workstation adjustment.

3. Main power branch switch for robot workstations

Power incoming isolation and short-circuit protection for robot workstations.

3. HVAC, Wasseraufbereitung & Energiewirtschaft
4. Electrical cabinets for water treatment pumping stations and sewage plants

Power branches for submersible sewage pumps, chemical dosing systems and aeration fans; Geeignet für Außenschränke (cabinet IP rating must prevent condensation).

2. Control cabinets for central air conditioning, HVAC equipment rooms

Power distribution branches for chillers, cooling tower fans and circulation pumps.

3. AC-side protection of distributed PV inverters (inverter power ≤110kW)

Strip busbar branch inside PV AC combiner cabinet; isolation function meets safety specifications for maintenance work.

4. Prefabricated Cabin, Rechenzentrum & Computer Room Power Distribution
5. Secondary branch distribution inside low-voltage prefabricated cabins

The combination of strip busbar and SLS modular solution saves wiring space inside compact prefabricated cabins.

2. Auxiliary power circuits for precision air conditioners and UPS bypass in IDC computer rooms

Isolation protection for critical auxiliary loads to enable independent power-off maintenance.

5. Maschinenbau, Mobile Equipment & Temporary Power Distribution (Fixed Installation Only; Not for Heavy Vibration Mobile Equipment)
6. Power distribution cabinets for fixed large test benches
7. Temporary main power distribution stations for exhibitions and factories (static installation)

❌ Forbidden Scenarios: Vehicle-mounted equipment and systems under continuous severe vibration (may cause loosening and overheating at busbar clamping positions).

6. Gebäude & Gewerbliche Einrichtungen
7. Power control cabinets for underground mechanical rooms and heat exchange stations in commercial complexes
8. Special power distribution cabinets for hospitals and laboratories

Independent branch isolation for multiple small power loads to ensure uninterrupted operation of other critical loads during maintenance.

🚫 Explicitly Unsuitable Scenarios (Critical Selection Pitfalls)

1. Not compatible with QCB CrossBoard flat busbar, only applicable to 60Classic strip busbar;
2. Not designed for frequent switching: This device serves as a disconnector. It cannot perform frequent load switching and shall not be used as a load switch to repeatedly break rated operating current;
3. Caution for environments with sustained temperature above 40℃, high humidity without anti-condensation measures and corrosive atmosphere;
4. Hochstromkreise: Not recommended when continuous load current exceeds 140A (reserve temperature rise margin; upgrade to SLS-1 NH1 series preferentially);
5. Strictly prohibited to disconnect neutral wire with single-pole switches for high-power single-phase 220V circuits. In three-phase systems, only phase conductors shall be disconnected; neutral wire shall be routed separately.

✅ Standard Typical Configuration (Engineering BOM Reference)

Three-phase load circuit:

3 × SLS-00 33234 (L1/L2/L3) + matched NH00 fuses + 33224 cable connection terminals

Busbar: Wöhner 60×10mm 60Classic strip busbar

Supplementary Comparison for Selection

Require flexible expansion and future circuit addition → SLS-00 (33234) clip-on strip busbar solution preferred

Fixed cabinet layout, non-expandable busbar, no future expansion demand → Select LTS-00 fixed fuse disconnector