R. STAHL 8530/1-MCB-STA102-C2-500-3 Circuit Breaker
Article No. 272131
Product Overview
The R. STAHL 8530/1-MCB-STA102-C2-500-3 circuit breaker is part of the system technology components. It offers excellent current limitation in case of short circuits and high breaking capacities of 10, 15, or 25 kA, leading to reduced electrical line load and improved selectivity with upstream fuses.
Designed with a modular structure, these modules are available in 1 to 4-pole versions and for nominal currents from 0.5–63 A. The maximum mounting capacity is 4.5 division units.
Key Features:
- Separator function according to EN 60947-2
- Energy limitation class 3
- Simple replacement or expansion of installations due to modular design of the protection switch
- Easy mounting by clipping onto a DIN mounting rail in Ex e enclosures
- Fixed thermal and magnetic trip adjustment
- Ergonomic operating lever for secure connection and disconnection
- Protection against reconnection 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 Ex tb/tc enclosure |
| Homologation IECEX gas | IECEX FMG 19.0029U |
| IECEx Protection against gas explosions | Ex db eb IIC Gb |
| Homologation ATEX gas | FM19ATEX0191U |
| ATEX protection against gas explosions | II 2 G Ex db eb IIC Gb |
Certifications
| Parameter | Value |
|---|---|
| Certifications | ATEX (FM), Brazil (ULB), China (CQST), IECEX (FM) |
| Certificate of conformity | Certificate of conformity (ATEX), China (CCC) |
Electrical Data
| Parameter | Value |
|---|---|
| Rated operating voltage AC | 230/400 V |
| Rated operating current | 2 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 + Error 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 | - |
| Trip characteristic | C |
| Number of poles | 2-pole |
Environmental Conditions
| Parameter | Value |
|---|---|
| Ambient temperature | -40 °C ... 70 °C |
| 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 cross-section min. | 1.5 mm² |
| Connection cross-section max. | 25 mm² |
| Connection cross-section AWG min. | 16 AWG |
| Connection cross-section AWG max. | 4 AWG |
| Connection cross-section 2 min. | 1.5 mm² |
| Connection cross-section 2 max. | 10 mm² |
| Connection cross-section 2 AWG min. | 16 AWG |
| Connection cross-section 2 AWG max. | 8 AWG |
| Connection HIKO cross-section min. | 0.5 mm² |
| Connection HIKO cross-section max. | 4 mm² |
| Connection HIKO cross-section min AWG | 18 (unece.unit.AWG) |
| Connection HIKO cross-section max AWG | 14 (unece.unit.AWG) |
| Tightening torque min. | 2 N·m |
| Tightening torque max. | 3 N·m |
| Connection Note | 2 conductor connections (upper and lower chamber simultaneously): lower and upper chamber max. 16 / 10 mm² (only one cross-sectional difference of the upper and lower chamber can be connected). Permitted connection cross-section combinations are shown in the instructions for use. |
Dimensions
| Parameter | Value (mm) | Value (in) |
|---|---|---|
| Width | 83 | 3.27 |
| Mounting width | - | - |
| Length | 165 | 6.5 |
| Depth of installation | 138.3 | 5.44 |
| Weight | 1.3 kg | 2.867 lb |
Diagrams showing dimensions are available in the original document.
Mounting / Installation
| Parameter | 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 |
Accessories
Cylinder lock
For locking (stirrup Ø 3)
Article No.: 107115
Locking device
Locking/tagging pliers for individual component locking using up to 4 cylinder locks.
Article No.: 227232
Fixing kit
A fixing kit for mounting the component on the mounting plate without a top hat rail.
Article No.: 276618
Technical Drawings and Characteristic Curves
The document includes technical drawings illustrating dimensions and mounting, as well as characteristic curves showing tripping behavior based on current multiples. These are visual aids and are not fully transcribed here.
