R. STAHL 8530/1-MCB-STA102-C20-000-2 Circuit Breaker
Article Number: 293972
Product Overview
The R. STAHL 8530/1-MCB-STA102-C20-000-2 circuit breaker is part of the System Technology Components series. It offers good current limitation in case of short circuits and a high breaking capacity of 10, 15, or 25 kA, leading to reduced electrical line load and improved selectivity with upstream fuses.
Key features include:
- Disconnector function according to EN 60947-2
- Energy limitation class 3
- Simple replacement or expansion of installations due to modular design
- Easy mounting via plug-in connection on DIN mounting rails in Ex e enclosures
- Adjustable thermal and magnetic trip
- Ergonomic operating lever for secure connection and disconnection
- Protection against re-closing during maintenance using padlocks (accessories)
The circuit breakers are available in 1 to 4-pole models with nominal currents from 0.5–63 A. The maximum mounting capacity is 4.5 division units.
Technical Data
Explosion Protection
| Parameter | Value |
|---|---|
| Applications (zones) | 1, 2 |
| Applications (zones) Note | Can be used in zones 21/22 with protective enclosure Ex tb/tc |
| 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 | 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 endurance | 2 x 10⁴ |
| Mechanical endurance | 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 func. CC | - |
| Tripping 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 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 |
| Minimum tightening torque | 2 N·m |
| Maximum tightening torque | 3 N·m |
| Connection terminal Note | 2 conductor connections (upper and lower chamber simultaneously): Lower and upper chamber max. 16 / 10 mm² (only a maximum cross-sectional difference between the upper and lower chamber can be connected.) Permitted connection cross-section combinations are shown in the user instructions. |
| Width | 65 mm |
| Mounting width in inches | 2.56 in |
| Length | 165 mm |
| Length in inches | 6.5 in |
| Installation depth | 138.3 mm |
| Installation depth inches | 5.44 in |
| Weight | 1 kg |
| Weight in lbs | 2.205 lb |
Mounting / Installation
| Parameter | Value |
|---|---|
| Tightening torque | 2-3 N·m |
| Tightening torque Ibf 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
Tripping Characteristic Curve: A graph illustrating the tripping time in seconds against multiples of the rated current (I/In) for tripping characteristic C. It shows the relationship between current and time for tripping under different conditions, including a limit curve from a cold state.
Diagram showing tripping time vs. multiples of rated current for characteristic C.
Measurement Diagram: A diagram with dimensions provided in both millimeters and inches, illustrating the physical layout and key measurements of the circuit breaker. This includes width, depth, and height details.
Diagram showing overall dimensions and mounting details.
Accessories
| Accessory | Article Number |
|---|---|
| Cylinder lock for blocking (shackle Ø 3) | 107115 |
| Quadruple immobilization device: Locking/tagging tool for individual component locking with up to 4 cylinder locks. | 227232 |
| Fixing kit: A set of fixings for mounting the component on the mounting plate without a top-hat rail. | 276618 |
R. STAHL reserves the right to modify technical data, dimensions, weights, designs, and delivery options.
