R. STAHL LS Leitungsschutzschalter (Miniature Circuit Breaker)
Model: 8530/1-MCB-STA103-C50-000-3
Article Number: 272183
Product Overview
The R. STAHL 8530/1-MCB-STA103-C50-000-3 miniature circuit breakers offer good current limitation for short circuits and high breaking capacity of 10, 15, or 25 kA. This results in reduced stress on conductors and higher selectivity with upstream fuses. The modules are designed for modularity, available in 1- to 4-pole versions, and for nominal currents from 0.5–63 A. The maximum installation capacity is 4.5 module widths (TE).
Key features include:
- Disconnector function according to EN 60947-2
- Energy limitation class 3
- Easy replacement or expansion of installations due to modular design
- Simple mounting by snapping onto a mounting rail in Ex e enclosures
- Fixed set thermal and magnetic releases
- Ergonomically shaped operating lever for secure ON/OFF switching
- Protection against re-engagement during maintenance using padlocks (accessory)
Technical Data
Explosion Protection
| Feature | Specification |
|---|---|
| Explosive Atmosphere (Zones) | 1, 2 |
| Explosive Atmosphere (Zones) Note | Usable in Zone 21 / 22 when protected 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), People's Republic of China (CCC) |
Electrical Data
| Parameter | Value |
|---|---|
| Rated Operating Voltage AC | 230/400 V |
| Rated Operating Current | 50 A |
| Frequency | 50/60 Hz |
| Rated Breaking Capacity | 10 kA |
| Electrical Service Life | 104 |
| Mechanical Service Life | 2 x 104 |
| 1. Auxiliary Function | - |
| Rated Voltage 1. Auxiliary Function AC | - |
| Max. Rated Current 1. Auxiliary Function | - |
| 2. Auxiliary Function | - |
| Max. Voltage 2. Auxiliary Function DC | - |
| Tripping 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 based on current certificates are available upon request. |
Mechanical Data
| Parameter | Value |
|---|---|
| Protection Type (IP) (IEC 60529) | IP2X |
| Housing Material | Thermoplast |
| 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 |
| Tightening Torque min. | 2 N·m |
| Tightening Torque max. | 3 N·m |
| Connection Cross-section Note | 2-conductor connection (upper and lower chamber simultaneously): upper and lower chamber max. 16 / 10 mm² (A maximum cross-section difference between the upper and lower chamber can be clamped.) The permissible combination possibilities of the connection cross-sections can be found in the operating manual. |
| Width | 83 mm (3.27 in) |
| Length | 165 mm (6.5 in) |
| Installation Depth | 138.3 mm (5.44 in) |
| Weight | 1.4 kg (3.087 lb) |
Mounting / Installation
| Parameter | Value |
|---|---|
| Tightening Torque | 2-3 N·m (17.7 ... 26.6 lbf-in) |
| Tightening Torque Auxiliary Contact | 0.4-0.6 Nm (3.5 ... 5.3 lbf-in) |
Diagrams and Dimensions
Tripping Characteristic Curve: The graph shows the tripping time in seconds and minutes against multiples of the rated current (I/In) for tripping characteristic C. It includes a limit curve from a cold state for AC and DC.
Dimensional Drawing: The drawing illustrates the dimensions of the 8530/1 unit in millimeters and inches. It shows the width, length, and installation depth, indicating it occupies 3 module widths.
Accessories
Locking Device (Fourfold)
A Lock-out / Tag-out shackle for individually locking the component, usable with up to 4 padlocks.
| Description | Article Number |
|---|---|
| Locking device (shackle Ø 3) | 227232 |
Mounting Set
A mounting set for attaching the component to the mounting plate without a top-hat rail.
| Description | Article Number |
|---|---|
| Mounting set for attaching the component to the mounting plate without a top-hat rail. | 276618 |
Cylinder Lock
For locking (shackle Ø 3).
| Description | Article Number |
|---|---|
| For locking (shackle Ø 3) | 107115 |
