R. STAHL 8530/1-MCB-STA103-B32-000-3 Line Protection Circuit Breaker
Article No. 272166
System Components for System Technology
Disjoncteur Disjonct. protection de ligne
The R. STAHL series 8530 line protection circuit breakers offer excellent current limitation for short circuits and high switching capacities of 10, 15, or 25 kA. This ensures minimal load on lines and high selectivity to upstream fuses. The components are modular and available in 1 to 4-pole versions with nominal currents from 0.5–63 A. The maximum installation capacity is 4.5 partial units (UP).
Key Features:
- Disconnecting function according to EN 60947-2
- Energy limitation class 3
- Easy replacement or extension of systems due to modular design
- Simple snap-on mounting on a DIN rail in Ex e enclosures
- Fixed thermal-magnetic releases
- Ergonomic lever for safe switching on and off
- Padlock protection (accessories) prevents restarting during maintenance
Technical Characteristics
Explosion Protection
| Domain of application (zones) | 1, 2 |
|---|---|
| Domain of application (zones) Note | Usable in zone 21 / 22 with Ex tb / tc enclosure protection |
| IECEx gas certificate | IECEx FMG 19.0029U |
| IECEx protection against gas explosion | Ex db eb IIC Gb |
| ATEX gas certificate | FM19ATEX0191U |
| ATEX protection against gas explosion | II 2G Ex db eb IIC Gb |
| Certificates | ATEX (FM), Brazil (ULB), China (CQST), IECEx (FM) |
| Certificate of conformity | Certificate of conformity (ATEX), China (CCC) |
Electrical Characteristics
sans sans| Rated operational voltage AC | 230/400 V |
|---|---|
| Rated service current | 32 A |
| Frequency | 50/60 Hz |
| Rated service breaking capacity | 10 kA |
| Electrical service life | 104 |
| Mechanical service life | 2 x 104 |
| 1. auxiliary function | |
| Voltage 1st auxiliary function AC | - |
| Max. current 1st auxiliary function | - |
| 2. auxiliary function | |
| Max. voltage 2nd auxiliary function DC | - |
| Tripping characteristic | B |
| Number of poles | 3 poles |
Ambient Conditions
| Ambient temperature | -40 °C ... 70 °C |
|---|---|
| Ambient temperature | -40 °C ... 70 °C |
| Ambient temperature | -40 °F ... 158 °F |
| Ambient temperature | -40°F ... +158°F |
| Ambient temperature Note | Different ambient temperatures based on current certificates, on request |
Mechanical Characteristics
| Degree of protection (IP) (IEC 60529) | IP2X |
|---|---|
| Housing material | Thermoplastic |
| Minimum connection terminal size | 1.5 mm² |
| Maximum connection terminal size | 25 mm² |
| AWG connection terminal min. | 16 AWG |
| AWG connection terminal max. | 4 AWG |
| Connection terminal 2 min. | 1.5 mm² |
| Connection terminal 2 max. | 10 mm² |
| Connection terminal 2 AWG min. | 16 AWG |
| Connection terminal 2 AWG max. | 8 AWG |
| Tightening torque min. | 2 N·m |
| Tightening torque max. | 3 N·m |
| Connection terminal Note | Connection of 2 conductors (upper and lower chamber simultaneously): Upper and lower chamber max. 16 / 10 mm² (Connection can be made with a maximum difference in cross-section between the upper and lower chamber.) |
| Width | 83 mm (3.27 in) |
| Length | 165 mm (6.5 in) |
| Mounting depth | 138.3 mm (5.44 in) |
| Weight | 1.4 kg (3.087 lb) |
Mounting / Installation
| Tightening torque | 2–3 N·m |
|---|---|
| Tightening torque in lbf in | 17.7 ... 26.6 lbf-in |
| Auxiliary contact tightening torque | 0.4–0.6 N·m |
| Auxiliary contact tightening torque lbf in | 3.5 ... 5.3 lbf in |
Technical Drawings
Tripping Characteristic Curve
The graph shows the tripping characteristic for a B-type circuit breaker, indicating the multiple of the rated current (I/In) versus the tripping time in seconds and minutes. The curve is plotted from a cold state.
Overall Dimensions
Diagrams showing the overall dimensions of the unit in millimeters and inches. The unit is identified as 8530/1, 3 division units.
Accessories
Quadruple Locking Device
A locking/unlocking system that allows individual locking of the component using up to 4 cylinder locks.
Article No.: 227232
Fixing Kit
A fixing kit to attach the component to a mounting plate without a DIN rail.
Article No.: 276618
Cylinder Lock
For locking (shackle Ø 3)
Article No.: 107115
Subject to modifications in technical characteristics, dimensions, weight, construction types, and delivery possibilities. Figures are for indicative purposes only.
