R. STAHL LS Miniature Circuit Breaker 8530/1-MCB-STA103-C63-500-4
Article No.: 293906
Product Overview
The R. STAHL 8530/1-MCB-STA103-C63-500-4 is an LS miniature circuit breaker designed for system technology applications. It offers good current limitation for short circuits and a high breaking capacity of 10, 15, or 25 kA, ensuring low load on cables and high selectivity with upstream fuses. The modular design allows for 1- to 4-pole configurations and nominal currents from 0.5–63 A. The maximum installation capacity is 4.5 modules (TE).
Key features include:
- Tripping function according to EN 60947-2
- Energy limiting class 3
- Easy replacement or expansion of installations due to modular design
- Simple mounting by snapping onto mounting rails in Ex e enclosures
- Fixed thermal and magnetic trip units
- Ergonomically shaped operating lever for secure switching
- Protection against re-closing during maintenance using padlocks (accessory)
Technical Data
Explosion Protection
| Parameter | Value |
|---|---|
| Area of application (zones) | 1, 2 |
| Area of application (zones) Note | Usable in Zone 21 / 22 with protection by enclosure Ex tb / tc |
| IECEx Certificate Gas | IECEx FMG 19.0029U |
| IECEx Gas Explosion Protection | Ex db eb IIC Gb |
| ATEX Certificate Gas | FM19ATEX0191U |
| ATEX Gas Explosion Protection | II 2 G Ex db eb IIC Gb |
| Certifications | ATEX (FM), Brazil (ULB), IECEx (FM), People's Republic of China (CQST) |
| Declarations of Conformity | Declaration of Conformity (ATEX) |
Electrical Data
| Parameter | Value |
|---|---|
| Rated operating voltage AC | 230/400 V |
| Rated operating current | 63 A |
| Frequency | 50/60 Hz |
| Rated breaking capacity | 10 kA |
| Electrical service life | 104 |
| Mechanical service life | 2 x 104 |
| 1. Auxiliary function | Auxiliary contact 1 changeover + fault signal contact 1 changeover |
| Rated voltage 1. Auxiliary function AC | 230 V |
| Max. rated current 1. Auxiliary function | 2 A |
| 2. Auxiliary function | - |
| Max. voltage 2. Auxiliary function DC | - |
| Trip characteristic | C |
| Number of poles | 3-pole |
Environmental Conditions
| Parameter | Value |
|---|---|
| Ambient temperature | -40 °C ... 70 °C (-40 °F ... 158 °F) |
| Ambient temperature note | Deviating ambient temperatures are available on request based on current certificates. |
Mechanical Data
| Parameter | Value |
|---|---|
| Protection type (IP) (IEC 60529) | IP2X |
| Housing material | Thermoplast |
| Conductor cross-section min. | 1.5 mm² |
| Conductor cross-section max. | 25 mm² |
| Conductor cross-section AWG min. | 16 AWG |
| Conductor cross-section AWG max. | 4 AWG |
| Conductor cross-section 2 min. | 1.5 mm² |
| Conductor cross-section 2 max. | 10 mm² |
| Conductor cross-section 2 AWG min. | 16 AWG |
| Conductor cross-section 2 AWG max. | 8 AWG |
| Conductor cross-section HIKO min. | 0.5 mm² |
| Conductor cross-section HIKO max. | 4 mm² |
| Conductor cross-section HIKO AWG min. | 18 AWG |
| Conductor cross-section HIKO AWG max. | 14 AWG |
| Tightening torque min. | 2 N·m |
| Tightening torque max. | 3 N·m |
| Conductor cross-section note | 2-conductor connection (upper and lower chamber simultaneously): Max. 16/10 mm² for upper and lower chamber (A maximum cross-section difference between the upper and lower chamber may be clamped.) Permitted combinations of conductor cross-sections can be found in the operating manual. |
| Dimension | Value |
|---|---|
| Width | 110 mm (4.33 in) |
| Length | 165 mm (6.5 in) |
| Installation depth | 138.3 mm (5.44 in) |
| Weight | 1.8 kg (3.969 lb) |
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 Nm |
| Tightening torque auxiliary contact lbf·in | 3.5 ... 5.3 lbf·in |
Technical Drawings
Diagrams showing dimensions and tripping characteristics are available.
Tripping Characteristic C: A graph illustrates the tripping time in seconds versus multiples of the rated current (I/In) for both AC and DC, with a cold state limit curve.
Dimensional Drawings: Schematics show the overall dimensions of the 3-pole unit with auxiliary and fault signal contacts, including width, depth, and height, with measurements in mm and inches.
Accessories
Locking Device (Fourfold)
A Lock-out / Tag-out shackle for individual locking of the component, usable with up to 4 cylinder locks.
- Article No.: 227232
Mounting Set
A mounting set for attaching the component to the mounting plate without a top-hat rail.
- Article No.: 276618
Cylinder Lock
For locking (shackle Ø 3)
- Article No.: 107115
Technical data, dimensions, weights, constructions, and delivery options are subject to change without notice. Illustrations are non-binding.
Manufacturer: R. STAHL Schaltgeräte GmbH | Am Bahnhof 30 | 74638 WALDENBURG
Contact: Tel. +49 7942 943 1700 | +49 7942 943 1777 | Email: sales.de@r-stahl.com | r-stahl.com
