R. STAHL Circuit Breaker 8530/1-MCB-STA103N-C20-000-4
Article Number: 293857
Product Overview
The R. STAHL 8530 series circuit breakers offer excellent current limitation in case of short circuits and high breaking capacities of 10, 15, or 25 kA. This results in reduced stress on electrical lines and improved selectivity with upstream fuses. The modules feature a modular design, available in 1 to 4 pole configurations, with nominal currents from 0.5–63 A. The maximum mounting capacity is 4.5 division units.
Key Features:
- 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-on in Ex e enclosures
- Fixed thermal and magnetic tripping adjustment
- Ergonomic operating lever for secure connection and disconnection
- Protection against re-energization during maintenance using padlocks (Accessories)
Technical Data
Explosion Protection
| Parameter | Value |
|---|---|
| Applications (zones) | 1, 2 |
| Applications (zones) Note | Can be used in zones 21/22 with protection by enclosure Ex tb/tc |
| IECEX gas certification | IECEX FMG 19.0029U |
| IECEx gas explosion protection | Ex db eb IIC Gb |
| ATEX gas certification | 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
| Parameter | Value |
|---|---|
| Rated operating voltage AC | 230/400 V |
| Rated operating current | 20 A |
| Frequency | 50/60 Hz |
| Rated switching capacity | 10 kA |
| Electrical service life | 2 x 10⁴ |
| Mechanical service life | 2 x 10⁵ |
| 1st auxiliary function | none |
| 1st auxiliary function voltage AC | - |
| Max. current 1st auxiliary function | - |
| 2nd auxiliary function | none |
| Max. voltage 2nd auxiliary function DC | - |
| Tripping characteristic | C |
| Number of poles | 3 pole + N |
Environmental Conditions
| Parameter | Value |
|---|---|
| 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 | Divergent ambient temperatures based on valid certificates upon request |
Mechanical Data
| Parameter | Value |
|---|---|
| Degree of protection (IP) (IEC 60529) | IP2X |
| Enclosure material | Thermoplastic |
| Connection terminal cross-section min. | 1.5 mm² |
| Connection terminal cross-section max. | 25 mm² |
| Connection terminal AWG min. | 16 AWG |
| Connection terminal AWG max. | 4 AWG |
| Connection terminal 2 cross-section min. | 1.5 mm² |
| Connection terminal 2 cross-section 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 | 2 conductor connections (upper and lower chamber simultaneously): lower and upper chamber max. 16 / 10 mm² (a cross-sectional difference between the upper and lower chamber of max. one size 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 |
| Mounting depth | 138.3 mm |
| Mounting depth in inches | 5.44 in |
| Weight | 1.8 kg |
| Weight | 3.969 lb |
Mounting / Installation
| Parameter | Value |
|---|---|
| Tightening torque | 2-3 N·m |
| Tightening torque lbf in | 17.7 ... 26.6 lbf-in |
| Auxiliary contact tightening torque | 0.4–0.6 Nm |
| Auxiliary contact tightening torque lbf in | 3.5 ... 5.3 lbf in |
Technical Diagrams
Tripping Characteristic Curve C
Shows the tripping behavior of the circuit breaker for different multiples of the rated current (In) under AC and DC conditions.
Measurement Diagram
Provides dimensional information for the circuit breaker, including width, length, and mounting depth, with measurements in both millimeters and inches.
3-pole + N, without auxiliary contact
Illustrates the pole configuration of the circuit breaker.
Accessories
| Accessory | Description | Article Number |
|---|---|---|
| Cylinder lock | For locking (shackle Ø 3) | 107115 |
| Quadruple immobilization device | Locking/labeling pliers for individual component locking using up to 4 cylinder locks. | 227232 |
| Fixing kit | A fixing kit for mounting the component on the mounting plate without a top hat rail. | 276618 |
