R. STAHL Circuit Breaker 8530/1-MCB-STA103-B40-000-3
Article No. 272167
Product Overview
The R. STAHL 8530 series circuit breakers are designed for systems in hazardous areas. They offer good current limitation in case of short circuits and high breaking capacity (10, 15, or 25 kA), leading to reduced stress on electrical lines and improved selectivity with connected fuses. These modules feature a modular design, are available in 1 to 4 pole configurations, and support 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
- Simple replacement or expansion of installations due to modular design
- Easy mounting via DIN rail clip in Ex e enclosures
- Fixed thermal and magnetic trip adjustment
- Ergonomic operating lever for safe connection and disconnection
- Protection against re-energization during maintenance using padlocks (Accessories)
Technical Data
Explosion Protection
| Applications (zones) | 1, 2 |
|---|---|
| Applications (zones) Note | Can be used in zones 21/22 with Ex tb/tc enclosure protection |
| 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), China (CCC) |
Electrical Data
| Rated operating voltage AC | 230/400 V |
|---|---|
| Rated operating current | 40 A |
| Frequency | 50/60 Hz |
| Rated switching capacity | 10 kA |
| Electrical service life | 104 |
| Mechanical service life | 2 x 104 |
| 1st auxiliary function | none |
| 1st auxiliary function voltage AC | - |
| Max. current 1st auxiliary function | - |
| 2nd auxiliary function | none |
| Max. voltage 2nd auxiliary function DC | - |
| Trip characteristic | B |
| Number of poles | 3-pole |
Environmental 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 Note | Divergent ambient temperatures based on valid certificates upon request |
Mechanical Data
| Degree of protection (IP) (IEC 60529) | IP2X |
|---|---|
| Enclosure material | Thermoplastic |
| Connection terminal minimum cross-section | 1.5 mm² |
| Connection terminal maximum cross-section | 25 mm² |
| Connection terminal AWG min. | 16 AWG |
| Connection terminal AWG max. | 4 AWG |
| Connection 2 terminal minimum cross-section | 1.5 mm² |
| Connection 2 terminal maximum cross-section | 10 mm² |
| Connection 2 AWG min. | 16 AWG |
| Connection 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 one cross-section difference between the upper and lower chamber can be fitted). Permitted connection cross-section combinations are shown in the user manual. |
| Width | 83 mm |
| Mounting width in inches | 3.27 in |
| Length | 165 mm |
| Length in inches | 6.5 in |
| Installation depth | 138.3 mm |
| Installation depth in inches | 5.44 in |
| Weight | 1.4 kg |
| Weight in lbs | 3.087 lb |
Mounting / Installation
| 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
Trip Time Characteristic Curve
A graph shows the trip time in seconds and minutes against the current in Amperes. The curve is labeled 'Characteristic B' and 'Limit from cold state'. It indicates trip times for AC and DC currents.
Dimensional Drawings
Diagrams illustrate the dimensions of the circuit breaker. One diagram shows the overall dimensions with width, height, and depth measurements, including inch equivalents. Another diagram shows the terminal connections and mounting details.
Accessories
Cylinder Lock
Item: Padlock / tag for individual component lockout using up to 4 cylinder locks.
Article No.: 107115
Quadruple Immobilization Device
Item: Lockout / Tagout scissors for individual component lockout using up to 4 cylinder locks.
Article No.: 227232
Fixing Kit
Item: A set of fixings for mounting the component on the mounting plate without a top-hat rail.
Article No.: 276618
R. STAHL reserves the right to modify technical data, dimensions, weights, constructions, and delivery options.
