LS Miniature Circuit Breaker
Model: 8530/1-MCB-STA103-C63-000-3
Article No.: 267213
Manufacturer: R. STAHL
Product Overview
The R. STAHL 8530 series of miniature circuit breakers offer excellent current limitation for short circuits and high breaking capacity of 10, 15, or 25 kA. This results in reduced stress on cables and higher selectivity with upstream fuses. These components are modularly designed and available in 1- to 4-pole versions for nominal currents from 0.5–63 A. The maximum installation capacity is 4.5 module widths (TE).
Key features include:
- Trip 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 top-hat rail in Ex e enclosures
- Fixed thermal and magnetic trip units
- Ergonomically shaped operating lever ensures safe switching on and off
- Protection against re-switching during maintenance using padlocks (accessory)
Technical Data
Explosion Protection
| Area of application (Zones) | 1, 2 |
| Area of application (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
| Rated operational voltage AC | 230/400 V |
| Rated operational current | 63 A |
| Frequency | 50/60 Hz |
| Rated short-circuit breaking capacity | 10 kA |
| Electrical endurance | 104 |
| Mechanical endurance | 2 x 104 |
| Auxiliary contact | 1. Auxiliary function: None |
| Rated voltage 1. Auxiliary function AC | - |
| Max. rated current 1. Auxiliary function | - |
| 2. Auxiliary function | None |
| Max. voltage 2. Auxiliary function DC | - |
| Trip characteristic | C |
| Number of poles | 3-pole |
Environmental Conditions
| Ambient temperature | -40 °C ... 70 °C (-40 °F ... 158 °F) |
| Ambient temperature note | Deviating ambient temperatures are available upon request based on current certificates. |
Mechanical Data
| Protection type (IP) (IEC 60529) | IP2X |
| Housing material | Thermoplastic |
| 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 |
| 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 can be clamped.) The permitted combination possibilities of conductor cross-sections can be found in the operating manual. |
| Width | 83 mm (3.27 in) |
| Length | 165 mm (6.5 in) |
| Depth | 138.3 mm (5.44 in) |
| Weight | 1.4 kg (3.087 lb) |
Mounting / Installation
| 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) |
Technical Drawings and Diagrams
Trip Time Characteristic: A graph illustrating the trip time in seconds versus multiples of the rated current (I/In) for trip characteristic C, showing the limit curve from a cold state for AC and DC.
Dimensional Drawings:
- Overall dimensions of the 3-pole miniature circuit breaker, including width, depth, and height, with measurements in millimeters and inches.
- Detailed views of the component, showing terminal connections and overall size.
Accessories
Locking Device (Quadruple)
A Lock-out / Tag-out device for individually locking the component using up to 4 cylinder locks.
| Description | A locking device for fastening the component to the mounting plate without a top-hat rail. | Art. No. | 276618 |
| Cylinder Lock | For locking (shackle Ø 3) | Art. No. | 107115 |
Note: Technical data, dimensions, weights, constructions, and delivery options are subject to change. Illustrations are non-binding.
