R. STAHL 8530/1-MCB-STA103-B16-500-4 Circuit Breaker
Article No. 293886
Product Overview
The R. STAHL 8530 series circuit breakers offer excellent current limitation in case of short circuits and high breaking capacity (10, 15, or 25 kA). This results in reduced load on electrical lines and improved selectivity with upstream fuses. The modules feature a modular design, available in 1 to 4-pole versions, with nominal currents from 0.5–63 A. The maximum mounting capacity is 4.5 division units.
Key features include:
- Circuit breaker function according to EN 60947-2
- Energy limitation class 3
- Easy replacement or expansion of installations due to modular design
- Simple mounting via DIN rail snap-in in Ex e enclosures
- Fixed thermal and magnetic trip settings
- Ergonomic operating lever for safe connection and disconnection
- Protection against reclosing during maintenance using padlocks (Accessories)
Technical Data
Explosion Protection
| Property | Value |
|---|---|
| Applications (zones) | 1, 2 |
| Applications (zones) Note | Can be used in zones 21/22 with Ex tb/tc enclosure protection |
| IECEx gas homologation | IECEx FMG 19.0029U |
| IECEx gas explosion protection | Ex db eb IIC Gb |
| ATEX gas homologation | FM19ATEX0191U |
| ATEX gas explosion protection | II 2 G Ex db eb IIC Gb |
| Certifications | ATEX (FM), Brazil (ULB), China (CQST), IECEx (FM) |
| Certificate of conformity | Certificate of conformity (ATEX) |
Electrical Data
| Property | Value |
|---|---|
| Rated operating voltage AC | 230/400 V |
| Rated operating current | 16 A |
| Frequency | 50/60 Hz |
| Rated switching capacity | 10 kA |
| Electrical service life | 2 x 10⁴ |
| Mechanical service life | 2 x 10⁴ |
| 1st auxiliary function | Auxiliary contact 1 changeover + Signal contact 1 changeover |
| Voltage 1st auxiliary function AC | 230 V |
| Max. current 1st auxiliary function | 2 A |
| 2nd auxiliary function | None |
| Max. voltage 2nd aux. function DC | 8 |
| Trip characteristic | B |
| Number of poles | 3-pole |
Mechanical Data
| Property | Value |
|---|---|
| Ambient temperature | -40 °C ... 70 °C |
| Ambient temperature | -40 °F ... 158 °F |
| IP protection rating (IEC 60529) | IP2X |
| Enclosure material | Thermoplastic |
| Connection cross-section min. | 1.5 mm² |
| Connection cross-section max. | 25 mm² |
| Connection AWG min. | 16 AWG |
| Connection AWG max. | 4 AWG |
| Connection 2 cross-section min. | 1.5 mm² |
| Connection 2 cross-section max. | 10 mm² |
| Connection 2 AWG min. | 16 AWG |
| Connection 2 AWG max. | 8 AWG |
| Connection HIKO cross-section min. | 0.5 mm² |
| Connection HIKO cross-section max. | 4 mm² |
| Connection HIKO AWG min. | 18 (unece.unit.AWG) |
| Connection HIKO AWG max. | 14 (unece.unit.AWG) |
| Tightening torque min. | 2 N·m |
| Tightening torque max. | 3 N·m |
| Connection cross-section note | 2 conductors (upper and lower chamber simultaneously): upper and lower chamber max. 16 / 10 mm² (only one cross-section difference between upper and lower chamber can be connected). Permitted connection cross-section combinations are listed in the user manual. |
| Width | 110 mm |
| Mounting width in inches | 4.33 in |
| Length | 165 mm |
| Length in inches | 6.5 in |
| Installation depth | 138.3 mm |
| Installation depth in inches | 5.44 in |
| Weight | 1.8 kg |
| Weight | 3.969 lb |
Mounting / Installation
| Property | 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 Diagrams
Trip Time Curve: A graph illustrating the trip time characteristics for the circuit breaker, showing time in seconds and minutes against current multiples.
Measurement Diagram: A diagram showing the dimensions of the circuit breaker, with measurements provided in both millimeters and inches. Key dimensions include width, length, and installation depth.
Accessories
Cylinder Lock
Cylinder lock for blocking (shackle Ø 3)
Article No.: 107115
Quadruple Immobilization Device
Locking/tagging pliers for individual component locking using up to 4 cylinder locks.
Article No.: 227232
Fixing Kit
A set of fixings for mounting the component on the mounting plate without a top hat rail.
Article No.: 276618
General Information
R. STAHL Schaltgeräte GmbH Am Bahnhof 30 | 74638 WALDENBURG Tel. +49 7942 943 1700 | +49 7942 943 1777 | Email: sales.de@r-stahl.com | r-stahl.com
Note: Technical data, dimensions, weights, constructions, and delivery options are subject to change.
