R. STAHL LS Miniature Circuit Breaker
Model: 8530/1-MCB-STA101-B16-500-2
Article No.: 293980
Key Features
- Disconnect function according to EN 60947-2
- Energy limiting class 3
- Easy replacement or expansion of your system with modular circuit breaker design
- Simple mounting by snapping onto top-hat rails in Ex e enclosures
- Fixed thermal and magnetic trip units
- Ergonomically shaped operating lever ensures secure switching on and off
- Protection against re-switching during maintenance using padlocks (accessories)
Product Overview
The R. STAHL 8530 series miniature circuit breakers offer excellent current limiting for short circuits and a high breaking capacity of 10, 15, or 25 kA. This results in reduced stress on conductors and high selectivity with upstream fuses. The components are modularly designed and available in 1- to 4-pole versions for rated currents from 0.5–63 A. The maximum installation capacity is 4.5 module widths (TE).
Technical Data
Explosion Protection
| Feature | Specification |
| Area of application (zones) | 1, 2 |
| Area of application (zones) note | Usable in Zone 21 / 22 with protection 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 | Conformity certification (ATEX) |
Electrical Data
| Feature | Specification |
| Rated operating voltage AC | 230 V |
| Rated operating current | 16 A |
| Frequency | 50/60 Hz |
| Rated breaking capacity | 10 kA |
| Electrical service life | 2 x 10⁴ |
| Mechanical service life | 2 x 10⁴ |
| Auxiliary function | 1 changeover auxiliary contact + 1 fault signal changeover contact |
| Rated voltage 1st auxiliary function AC | 230 V |
| Max. rated current 1st auxiliary function | 2 A |
| 2nd auxiliary function | - |
| Max. voltage 2nd auxiliary function DC | - |
| Trip characteristic | B |
| Number of poles | 1-pole |
Environmental Conditions
| Feature | Specification |
| Ambient temperature | -40 °C ... 70 °C |
| Ambient temperature (Fahrenheit) | -40 °F ... 158 °F |
| Ambient temperature note | Deviating ambient temperatures available upon request based on current certificates. |
Mechanical Data
| Feature | Specification |
| Protection type (IP) (IEC 60529) | IP2X |
| Housing material | Thermoplast |
| Conductor cross-section min. | 1.5 mm² |
| Conductor cross-section max. | 25 mm² |
| Conductor cross-section AWG min. | 16 AWG |
| Conductor cross-section AWG max. | 4 AWG |
| Conductor cross-section 2 min. | 1.5 mm² |
| Conductor cross-section 2 max. | 10 mm² |
| Conductor cross-section 2 AWG min. | 16 AWG |
| Conductor cross-section 2 AWG max. | 8 AWG |
| Conductor cross-section HIKO min. | 0.5 mm² |
| Conductor cross-section HIKO max. | 4 mm² |
| Conductor cross-section HIKO AWG min. | 18 AWG |
| Conductor cross-section HIKO AWG max. | 14 AWG |
| Tightening torque min. | 2 N·m |
| Tightening torque max. | 3 N·m |
| Conductor 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 may be clamped.) The permitted combinations of conductor cross-sections can be found in the operating manual. |
| Width | 65 mm [2.56 in] |
| Length | 165 mm [6.5 in] |
| Installation depth | 138.3 mm [5.44 in] |
| Weight | 1 kg [2.205 lb] |
Mounting / Installation
| Feature | Specification |
| Tightening torque | 2-3 N·m |
| Tightening torque lbf·in | 17.7 ... 26.6 lbf·in |
| Tightening torque auxiliary contact | 0.4-0.6 Nm |
| Tightening torque auxiliary contact lbf·in | 3.5 ... 5.3 lbf·in |
Technical Drawings and Dimensions
Diagrams illustrating the tripping characteristic (Type B) and dimensional drawings of the device are provided. The tripping characteristic shows the relationship between the multiple of the rated current and the tripping time, indicating the device's response to overcurrents. The dimensional drawings provide precise measurements for installation, including width, length, and depth, in both millimeters and inches.