R. STAHL 8530/1-MCB-STA103-C32-000-3 Line Protection Circuit Breaker
Article No. 272181
Product Overview
The R. STAHL 8530 series line protection circuit breakers offer good current limitation for short circuits and high switching capacity (10, 15, or 25 kA). They provide minimal load on lines and high selectivity to upstream fuses. These modular components are available in 1 to 4 pole versions with nominal currents from 0.5–63 A. The maximum installation capacity is 4.5 modular units (UP).
Key features include:
- Disconnecting function according to EN 60947-2
- Energy limitation class 3
- Easy replacement or extension of systems due to modular design
- Simple plug-in mounting on a DIN rail in Ex e enclosures
- Fixed magneto-thermal trip units
- Ergonomic lever for safe switching on and off
- Padlock protection (accessories) prevents re-operation during maintenance
Technical Characteristics
Explosion Protection
| Domain of application (zones) | 1, 2 |
|---|---|
| Domain of application (zones) Note | Usable in Zone 21 / 22 with protection by Ex tb / tc enclosure |
| IECEx certificate gas | IECEx FMG 19.0029U |
| IECEx protection against gas explosion | Ex db eb IIC Gb |
| ATEX certificate gas | FM19ATEX0191U |
| ATEX protection against gas explosion | II 2G Ex db eb IIC Gb |
| Certificates | ATEX (FM), Brazil (ULB), China (CQST), IECEx (FM) |
| Certificate of conformity | Certificate of conformity (ATEX), China (CCC) |
Electrical Characteristics
sans sans| Rated operational voltage AC | 230/400 V |
|---|---|
| Rated operational current | 32 A |
| Frequency | 50/60 Hz |
| Rated switching capacity | 10 kA |
| Electrical service life | 104 |
| Mechanical service life | 2 x 104 |
| 1. auxiliary function | |
| Voltage 1st auxiliary function AC | - |
| Max. current 1st auxiliary function | - |
| 2. auxiliary function | |
| Max. voltage 2nd auxiliary function DC | - |
| Tripping characteristic | C |
| Number of poles | 3 poles |
Ambient Conditions
| Ambient temperature | -40 °C ... 70 °C |
|---|---|
| Ambient temperature | -40 °C ... 70 °C |
| Ambient temperature | -40 °F ... 158 °F |
| Ambient temperature Note | Different ambient temperatures based on current certificates, on request |
Mechanical Characteristics
| Degree of protection (IP) (CEI 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 |
| Tightening torque min. | 2 N·m |
| Tightening 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.) |
| Width | 83 mm [3.27 in] |
| Length | 165 mm [6.5 in] |
| Mounting depth | 138.3 mm [5.44 in] |
| Weight | 1.4 kg [3.087 lb] |
| 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
Diagram 1: Tripping Characteristic Curve C
This diagram illustrates the tripping characteristic for the circuit breaker, showing the relationship between time (in seconds) and multiples of the rated current (I/In) for AC and DC currents. It indicates the limit from the cold state.
Diagram 2: Overall Dimensions
This diagram provides the overall dimensions of the circuit breaker in millimeters and inches. It shows the width (83 mm / 3.27 in), length (165 mm / 6.50 in), and mounting depth (138.3 mm / 5.44 in). It also indicates the unit dimensions for a 3-pole unit (8530/1; 3 division units).
Accessories
| Item | Description | Article No. |
|---|---|---|
| Quadruple locking device | A locking/unlocking system that allows individual locking of the component using up to 4 cylinder locks. | 227232 |
| Fixing kit | A fixing kit to attach the component to the mounting plate without a DIN rail. | 276618 |
| Cylinder lock | For locking (stirrup Ø 3) | 107115 |
Note: Technical characteristics, dimensions, weight, construction types, and delivery possibilities are subject to change without notice. Figures are for indicative purposes only.
For further information, contact R. STAHL Schaltgeräte GmbH.
