R. STAHL 8530/1-MCB-STA103-C40-000-3 Line Protection Circuit Breaker
This document provides detailed technical specifications for the R. STAHL 8530/1-MCB-STA103-C40-000-3 line protection circuit breaker, part number 272182.
Product Overview
The R. STAHL 8530 series line protection circuit breakers offer robust current limitation for short circuits and high switching capacities of 10, 15, or 25 kA. These modular components are designed for minimal line load and high selectivity with upstream fuses. They are available in 1 to 4-pole versions with nominal currents from 0.5–63 A, supporting a maximum installation capacity of 4.5 partial units (UP).
Key Features
- Disconnecting function according to EN 60947-2
- Energy limitation class 3
- Easy replacement or extension of systems due to modular design
- Simple mounting via snap-on onto a DIN rail in Ex e enclosures
- Fixed magneto-thermal releases
- Ergonomic lever for safe switching on and off
- Padlock protection (accessories) prevents re-operation during maintenance
Technical Specifications
Explosion Protection
| Characteristic | Specification |
|---|
| Application Area (Zones) | 1, 2 |
| Application Area (Zones) Note | Usable in Zone 21 / 22 with Ex tb / tc enclosure protection |
| IECEx Certificate Gas | IECEx FMG 19.0029U |
| IECEx Explosion Protection Gas | Ex db eb IIC Gb |
| ATEX Certificate Gas | FM19ATEX0191U |
| ATEX Explosion Protection Gas | II 2 G Ex db eb IIC Gb |
| Certificates | ATEX (FM), Brazil (ULB), China (CQST), IECEx (FM) |
| Conformity Certificate | Conformity Certificate (ATEX), China (CCC) |
Electrical Characteristics
| Characteristic | Specification |
|---|
| Rated operational voltage AC | 230/400 V |
| Rated operational 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 |
| Voltage 1st auxiliary function AC | - |
| Max. current 1st auxiliary function | - |
| 2nd auxiliary function | None |
| Max. voltage 2nd auxiliary function DC | - |
| Tripping characteristic | C |
| Number of poles | 3-pole |
Mechanical Characteristics
| Characteristic | Specification |
|---|
| Degree of protection (IP) (IEC 60529) | IP2X |
| Housing 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 terminal 2 minimum cross-section | 1.5 mm² |
| Connection terminal 2 maximum cross-section | 10 mm² |
| Connection terminal 2 AWG min. | 16 AWG |
| Connection terminal 2 AWG max. | 8 AWG |
| Clamping torque min. | 2 N·m |
| Clamping torque max. | 3 N·m |
| Connection terminal Note | Connection of 2 conductors (upper and lower chamber simultaneously): Upper and lower chamber max. 16 / 10 mm² (Connection can be made with a maximum cross-section difference between the upper and lower chamber.) |
| Allowed combination possibilities for connection cross-sections are indicated in the operating manual. | |
Dimensions
| Dimension | Value |
|---|
| Width | 83 mm (3.27 in) |
| Length | 165 mm (6.5 in) |
| Mounting depth | 138.3 mm (5.44 in) |
Weight
| Item | Value |
|---|
| Weight | 1.4 kg (3.087 lb) |
Mounting / Installation
| Characteristic | Specification |
|---|
| Clamping torque | 2–3 N·m |
| Clamping torque in lbf·in | 17.7 ... 26.6 lbf·in |
| Auxiliary contact clamping torque | 0.4–0.6 N·m |
| Auxiliary contact clamping torque lbf·in | 3.5 ... 5.3 lbf·in |
Technical Drawings
Technical drawings are provided for reference, subject to modification.
