R. STAHL LS Miniature Circuit Breaker
Model: 8530/1-MCB-STA102-C25-500-3
Article No.: 267212
Product Overview
The R. STAHL 8530/1-MCB-STA102-C25-500-3 series of miniature circuit breakers offers excellent current limiting capabilities for short circuits, with high breaking capacities of 10, 15, or 25 kA. This results in reduced stress on cables 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 Limiting Class 3
- Easy replacement or expansion of installations due to modular design
- Simple mounting by snapping onto mounting rails in Ex e enclosures
- Fixed thermal and magnetic trip units
- Ergonomically shaped operating lever for secure switching
- Padlock (accessory) for preventing re-switching during maintenance
Technical Data
Explosion Protection
| Parameter | Value |
|---|---|
| Einsatzbereich (Zonen) | 1, 2 |
| Einsatzbereich (Zonen) Hinweis | Usable in Zone 21 / 22 with protection by 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 Certificate (ATEX), People's Republic of China (CCC) |
Electrical Data
| Parameter | Value |
|---|---|
| Bemessungsbetriebsspannung AC | 230/400 V |
| Bemessungsbetriebsstrom | 25 A |
| Frequenz | 50/60 Hz |
| Bemessungsschaltvermögen | 10 kA |
| Elektrische Lebensdauer | 2 x 10⁴ |
| Mechanische Lebensdauer | 2 x 10⁴ |
| Hilfsfunktion | Auxiliary contact 1 changeover + fault signal contact 1 changeover |
| Bemessungsspannung 1. Hilfsfunktion AC | 230 V |
| Max. Bemessungsstrom 1. Hilfsfunktion | 2 A |
| 2. Hilfsfunktion | - |
| Max. Spannung 2. Hilfsfunktion DC | - |
| Auslösecharakteristik | C |
| Polzahl | 2-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): Upper and lower chamber max. 16/10 mm² (A maximum cross-section difference between the upper and lower chamber can be clamped.) The permissible combination possibilities of the connection cross-sections can be found in the operating manual. |
| Breite | 83 mm (3.27 in) |
| Länge | 165 mm (6.5 in) |
| Einbautiefe | 138.3 mm (5.44 in) |
| Gewicht | 1.3 kg (2.867 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 |
Diagrams and Technical Drawings
Trip Curve: The document includes a diagram illustrating the trip characteristics (Auslösecharakteristik C) for AC and DC, showing the relationship between multiples of the rated current and tripping time in seconds and minutes. This curve indicates the time it takes for the circuit breaker to trip under various fault current conditions.
Dimensional Drawings: Detailed drawings provide measurements in millimeters and inches for the circuit breaker unit (8530/1, 3 module widths) and its components. Key dimensions include width, length, and installation depth.
Accessories
Abschließvorrichtung vierfach (Lock-out/Tag-out Device)
A lock-out/tag-out shear for individually locking the component using up to 4 cylinder locks.
| Description | Article No. |
|---|---|
| Lock-out/Tag-out shear for individual locking of the component using up to 4 cylinder locks. | 227232 |
Befestigungsset (Mounting Set)
A mounting set for attaching the component to the mounting plate without a top hat rail.
| Description | Article No. |
|---|---|
| Mounting set for attaching the component to the mounting plate without a top hat rail. | 276618 |
Zylinderschloss (Cylinder Lock)
For locking (shackle Ø 3).
| Description | Article No. |
|---|---|
| For locking (shackle Ø 3) | 107115 |
Note: Technical data, dimensions, weights, constructions, and delivery options are subject to change. Illustrations are non-binding.
