R. STAHL LS Miniature Circuit Breaker
Model: 8530/1-MCB-STA103-C16-500-4 | Article No.: 293900
Product Overview
The R. STAHL LS Miniature Circuit Breakers of the 8530 series offer excellent current limitation for short circuits and high breaking capacity (10, 15, or 25 kA). This results in reduced stress on conductors and higher selectivity with upstream fuses. The modular design allows for 1- to 4-pole configurations and nominal currents from 0.5–63 A. The maximum installation capacity is 4.5 module widths (TE).
Key features include:
- Trennerfunktion according to EN 60947-2
- Energy limitation class 3
- Easy replacement or expansion of installations due to modular design
- Simple mounting by snapping onto a top-hat rail in Ex e enclosures
- Fixed thermal and magnetic trip units
- Ergonomically shaped operating lever for secure switching
- Protection against re-energization during maintenance via padlocks (accessory)
Technical Data
Explosion Protection
| Parameter | Value |
|---|---|
| Einsatzbereich (Zonen) | 1, 2 |
| Einsatzbereich (Zonen) Hinweis | Usable in Zone 21 / 22 with protection via enclosure Ex tb / tc |
| IECEx Bescheinigung Gas | IECEx FMG 19.0029U |
| IECEx Gasexplosionsschutz | Ex db eb IIC Gb |
| ATEX Bescheinigung Gas | FM19ATEX0191U |
| ATEX Gasexplosionsschutz | II 2 G Ex db eb IIC Gb |
| Bescheinigungen | ATEX (FM), Brazil (ULB), IECEx (FM), People's Republic of China (CQST) |
| Konformitätserklärungen | Conformity certification (ATEX) |
Electrical Data
| Parameter | Value |
|---|---|
| Bemessungsbetriebsspannung AC | 230/400 V |
| Bemessungsbetriebsstrom | 16 A |
| Frequenz | 50/60 Hz |
| Bemessungsschaltvermögen | 10 kA |
| Elektrische Lebensdauer | 2 x 104 |
| Mechanische Lebensdauer | 2 x 104 |
| Hilfsfunktion | 1 changeover auxiliary contact + 1 changeover fault signaling auxiliary contact |
| Bemessungsspannung 1. Hilfsfunktion AC | 230 V |
| Max. Bemessungsstrom 1. Hilfsfunktion | 2 A |
| 2. Hilfsfunktion | - |
| Max. Spannung 2. Hilfsfunktion DC | - |
| Auslösecharakteristik | C |
| Polzahl | 3-pole |
Umgebungsbedingungen
| Parameter | Value |
|---|---|
| Umgebungstemperatur | -40 °C ... 70 °C (-40 °F ... 158 °F) |
| Umgebungstemperatur Hinweis | Deviating ambient temperatures are available upon request based on current certificates. |
Mechanische Daten
| Parameter | Value |
|---|---|
| Schutzart (IP) (IEC 60529) | IP2X |
| Gehäusematerial | Thermoplast |
| Anschlussquerschnitt min. | 1.5 mm² |
| Anschlussquerschnitt max. | 25 mm² |
| Anschlussquerschnitt AWG min. | 16 AWG |
| Anschlussquerschnitt AWG max. | 4 AWG |
| Anschlussquerschnitt 2 min. | 1.5 mm² |
| Anschlussquerschnitt 2 max. | 10 mm² |
| Anschlussquerschnitt 2 AWG min. | 16 AWG |
| Anschlussquerschnitt 2 AWG max. | 8 AWG |
| Anschlussquerschnitt HIKO min. | 0.5 mm² |
| Anschlussquerschnitt HIKO max. | 4 mm² |
| Anschlussquerschnitt HIKO AWG min. | 18 AWG |
| Anschlussquerschnitt HIKO AWG max. | 14 AWG |
| Anzugsdrehmoment min. | 2 N·m |
| Anzugsdrehmoment max. | 3 N·m |
| Anschlussquerschnitt Hinweis | 2-conductor connection (upper and lower chamber simultaneously): Max. 16/10 mm² for upper and lower chamber (only one cross-section difference can be clamped between the upper and lower chamber). Permitted combinations of connection cross-sections can be found in the operating manual. |
| Breite | 110 mm |
| Breite Zoll | 4.33 in |
| Länge | 165 mm |
| Länge Zoll | 6.5 in |
| Einbautiefe | 138.3 mm |
| Einbautiefe Zoll | 5.44 in |
| Gewicht | 1.8 kg |
| Gewicht | 3.969 lb |
Montage / Installation
| Parameter | Value |
|---|---|
| Anzugsdrehmoment | 2-3 N·m |
| Anzugsdrehmoment Ibf in | 17.7 ... 26.6 lbf-in |
| Anzugsdrehmoment Hilfskontakt | 0.4-0.6 Nm |
| Anzugsdrehmoment Hilfskontakt Ibf in | 3.5 ... 5.3 lbf-in |
Technical Drawings and Characteristic Curves
Technical Drawing
Diagram showing the dimensions of the circuit breaker. Key dimensions include width (110 mm / 4.33 in), length (165 mm / 6.50 in), and depth (138.3 mm / 5.44 in). The unit is described as 8530/1; 4 module widths.
Tripping Characteristic Curve
A graph illustrating the tripping time versus multiples of the rated current (I/In) for characteristic C. The curve shows tripping times for both AC and DC, with a limit curve from a cold state.
Accessories
Abschließvorrichtung vierfach (Lock-out/Tag-out Device)
A lock-out/tag-out shear for individually locking the component, usable with up to 4 cylinder locks.
- Article No.: 227232
Befestigungsset (Mounting Set)
A mounting set for attaching the component to the mounting plate without a top-hat rail.
- Article No.: 276618
Zylinderschloss (Cylinder Lock)
For locking (shackle Ø 3).
- Article No.: 107115
Subject to technical changes, changes in dimensions, weights, constructions, and delivery options. Illustrations are non-binding.
