R. STAHL 8530/1-MCB-STA103N-B63-000-4 Line Protection Circuit Breaker
This document provides detailed technical specifications for the R. STAHL 8530/1-MCB-STA103N-B63-000-4 line protection circuit breaker, part number 293852.
Product Overview
The R. STAHL 8530 series line protection circuit breakers offer robust current limitation for short circuits with high switching capacities of 10, 15, or 25 kA. They ensure minimal load on lines and high selectivity with upstream fuses. These modular components are available in 1 to 4-pole versions with nominal currents from 0.5–63 A, supporting a maximum installation capacity of 4.5 installation units (UP).
Key features include:
- Sectioning function according to EN 60947-2
- Energy limitation class 3
- Easy replacement or extension of systems due to modular design
- Simple plug-in mounting on a DIN rail in Ex e enclosures
- Fixed thermal-magnetic releases
- Ergonomic operating lever for safe switching on and off
- Padlock protection (accessories) prevents re-operation during maintenance
Technical Specifications
Explosion Protection
| Application Area (Zones) | Zone 1, 2 |
|---|---|
| Application Area (Zones) Notice | Usable in Zone 21 / 22 with protection by Ex tb / tc enclosure |
| IECEx Gas Certificate | IECEx FMG 19.0029U |
| IECEx Gas Explosion Protection | Ex db eb IIC Gb |
| ATEX Gas Certificate | FM19ATEX0191U |
| ATEX Gas Explosion Protection | II 2G Ex db eb IIC Gb |
| Certificates | ATEX (FM), Brazil (ULB), China (CQST), IECEx (FM) |
| Conformity Certificate | ATEX Conformity Certificate |
Electrical Characteristics
| Rated operational voltage AC | 230/400 V |
|---|---|
| Rated service current | 63 A |
| Frequency | 50/60 Hz |
| Rated switching capacity | 10 kA |
| Electrical service life | 104 |
| Mechanical service life | 2 x 104 |
| 1st auxiliary function | None |
| Voltage 1st auxiliary function AC | - |
| Max. current 1st auxiliary function | - |
| 2nd auxiliary function | None |
| Max. voltage 2nd auxiliary function DC | - |
| Tripping characteristic | B |
| Number of poles | 3 poles + N |
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 Notice | Different ambient temperatures based on current certificates, upon 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 |
| Minimum AWG connection terminal size | 16 AWG |
| Maximum AWG connection terminal size | 4 AWG |
| Connection terminal 2 minimum size | 1.5 mm² |
| Connection terminal 2 maximum size | 10 mm² |
| Connection terminal 2 AWG minimum size | 16 AWG |
| Connection terminal 2 AWG maximum size | 8 AWG |
| Minimum tightening torque | 2 N·m |
| Maximum tightening torque | 3 N·m |
| Connection terminal Notice | Connection of 2 conductors (upper and lower chamber simultaneously): Upper and lower chamber max. 16 / 10 mm² (Connection can be made with a maximum cross-section difference between the upper and lower chamber.) |
| Allowed combination of connection terminal sizes | Indicated in the operating manual. |
| Width | 110 mm |
| Width in inches | 4.33 in |
| Length | 165 mm |
| Length in inches | 6.5 in |
| Mounting depth | 138.3 mm |
| Mounting depth in inches | 5.44 in |
| Weight | 1.8 kg |
| Weight | 3.969 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 in lbf·in | 3.5 ... 5.3 lbf·in |
Technical Drawings
Diagrams illustrating dimensions and tripping characteristics are provided. The tripping characteristic curve shows the tripping behavior for different multiples of the rated current (I/In) for AC and DC, with a 'B' characteristic.
Dimensional Drawing:
Overall dimensions are provided in millimeters and inches, showing width, length, and mounting depth. The device occupies 4 division units on a DIN rail.
Tripping Characteristic Curve:
The curve illustrates the tripping time in seconds and minutes against multiples of the rated current (I/In) for the 'B' characteristic, for both AC and DC circuits. It indicates the tripping behavior from a cold state.
Accessories
The following accessories are available for the 8530 series circuit breakers:
Quadruple Locking Device
A locking/unlocking system that allows individual locking of the component using up to 4 cylinder locks. Part No. 227232.
Mounting Kit
A fixing kit for mounting the component onto a mounting plate without a DIN rail. Part No. 276618.
Cylinder Lock
For locking (shackle Ø 3). Part No. 107115.
General Information
All technical characteristics, dimensions, weights, construction types, and delivery possibilities are subject to change without notice. Figures are for illustrative purposes only.
