R. STAHL LS Leitungsschutzschalter 8530/1-MCB-STA103-C25-000-3
Article No.: 272180
Product Overview
The R. STAHL 8530 series of miniature circuit breakers offer good short-circuit current limitation and high breaking capacity of 10, 15, or 25 kA. This results in low stress on the lines and high selectivity to upstream fuses. The components are modularly designed and available in 1- to 4-pole versions for nominal currents from 0.5–63 A. The maximum installation capacity is 4.5 modules (TE).
Key features include:
- Disconnector function according to EN 60947-2
- Energy limitation class 3
- Easy exchange or expansion of your system due to modular design
- Simple mounting by snapping onto the mounting rail in Ex e enclosures
- Fixed thermal and magnetic trip units
- Ergonomically shaped operating lever ensures safe switching on and off
- Protection against re-switching during maintenance using padlocks (accessory)
Technical Data
Explosion Protection
| Feature | Value |
|---|---|
| Explosive Atmosphere (Zones) | 1, 2 |
| Explosive Atmosphere (Zones) Note | Usable in Zone 21 / 22 when protected by enclosure Ex tb / tc |
| IECEx Certificate Gas | IECEx FMG 19.0029U |
| IECEx Gas Explosion Protection | Ex db eb IIC Gb |
| ATEX Certificate Gas | FM19ATEX0191U |
| ATEX Gas Explosion Protection | II 2 G Ex db eb IIC Gb |
| Certifications | ATEX (FM), Brazil (ULB), IECEx (FM), People's Republic of China (CQST) |
| Declarations of Conformity | Declaration of Conformity (ATEX), People's Republic of China (CCC) |
Electrical Data
| Feature | Value |
|---|---|
| Rated operational voltage AC | 230/400 V |
| Rated operational current | 25 A |
| Frequency | 50/60 Hz |
| Rated breaking capacity | 10 kA |
| Electrical service life | 2 x 104 |
| Mechanical service life | 2 x 104 |
| Auxiliary contact function | None |
| Rated voltage 1st auxiliary contact AC | - |
| Max. rated current 1st auxiliary contact | - |
| 2nd auxiliary contact function | None |
| Max. voltage 2nd auxiliary contact DC | - |
| Trip characteristic | C |
| Number of poles | 3-pole |
Environmental Conditions
| Feature | Value |
|---|---|
| Ambient temperature | -40 °C ... 70 °C |
| Ambient temperature (Fahrenheit) | -40 °F ... 158 °F |
| Ambient temperature note | Deviating ambient temperatures are available upon request based on current certificates. |
Mechanical Data
| Feature | Value |
|---|---|
| Protection type (IP) (IEC 60529) | IP2X |
| Housing material | Thermoplast |
| Connection cross-section min. | 1.5 mm² |
| Connection cross-section max. | 25 mm² |
| Connection cross-section AWG min. | 16 AWG |
| Connection cross-section AWG max. | 4 AWG |
| Connection cross-section 2 min. | 1.5 mm² |
| Connection cross-section 2 max. | 10 mm² |
| Connection cross-section 2 AWG min. | 16 AWG |
| Connection cross-section 2 AWG max. | 8 AWG |
| Tightening torque min. | 2 N·m |
| Tightening torque max. | 3 N·m |
| Connection cross-section note | 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 permitted combination possibilities of the connection cross-sections can be found in the operating instructions. |
| Width | 83 mm (3.27 in) |
| Length | 165 mm (6.5 in) |
| Depth | 138.3 mm (5.44 in) |
| Weight | 1.4 kg (3.087 lb) |
Mounting / Installation
| Feature | Value |
|---|---|
| Tightening torque | 2–3 N·m |
| Tightening torque lbf·in | 17.7 ... 26.6 lbf·in |
| Tightening torque auxiliary contact | 0.4–0.6 N·m |
| Tightening torque auxiliary contact lbf·in | 3.5 ... 5.3 lbf·in |
Technical Drawings and Diagrams
Trip Characteristic C Curve: The diagram shows the tripping time in seconds and minutes versus multiples of the rated current (I/In) for AC and DC. The curve indicates the response time for different current levels, with a limit curve for cold conditions.
Dimensional Drawings:
- Overall dimensions of the 8530/1 unit, showing width, length, and depth in both millimeters and inches. The unit is described as 3 modules wide.
- Detailed views of the connection terminals and the overall unit dimensions.
Accessories
Quadruple Locking Device
A Lock-out / Tag-out device for individually locking the component using up to 4 padlocks.
- Article No.: 227232
Mounting Set
A mounting set for attaching the component to the mounting plate without a top hat rail.
- Article No.: 276618
Cylinder Lock
For locking (shackle Ø 3)
- Article No.: 107115
Technical data, dimensions, weights, constructions, and delivery options are subject to change without notice. Illustrations are non-binding.
For more information, please visit www.r-stahl.com or contact R. STAHL Schaltgeräte GmbH.
