R. STAHL 8530/1-MCB-STA102-C2-500-3 Line Protection Circuit Breaker
Article Number: 272131
Product Overview
The R. STAHL 8530 series line protection circuit breakers, specifically the 8530/1-MCB-STA102-C2-500-3 model, offer excellent current limitation for short circuits with high switching capacities of 10, 15, or 25 kA. This ensures minimal load on lines and high selectivity to upstream fuses. The components are modular and available in 1 to 4 pole versions with nominal currents from 0.5–63 A. The maximum installation capacity is 4.5 partial units (UP).
Key features include:
- Disconnection according to EN 60947-2
- Energy limitation class 3
- Easy replacement or system extension due to modular design
- Simple snap-on mounting on a DIN rail in Ex e enclosures
- Fixed thermal-magnetic releases
- Ergonomic lever for safe operation and shutdown
- Padlock protection (accessories) prevents restarting during maintenance
Technical Characteristics
Explosion Protection
| Characteristic | Value |
|---|---|
| Application Area (Zones) | 1, 2 |
| Application Area (Zones) Note | Usable in Zone 21 / 22 with protection by Ex tb / tc enclosure |
| IECEx Gas Certificate | IECEx FMG 19.0029U |
| IECEx Gas Explosion Protection | Ex db eb IIC Gb |
| ATEX Gas Certificate | FM19ATEX0191U |
| ATEX Gas Explosion Protection | II 2 G Ex db eb IIC Gb |
| Certificates | ATEX (FM), Brazil (ULB), China (CQST), IECEx (FM) |
| Certificate of Conformity | ATEX (FM), China (CCC) |
Electrical Characteristics
| Characteristic | Value |
|---|---|
| Rated Operational Voltage AC | 230/400 V |
| Rated Service Current | 2 A |
| Frequency | 50/60 Hz |
| Rated Switching Capacity | 10 kA |
| Electrical Service Life | 2 x 104 |
| Mechanical Service Life | 2 x 104 |
| 1st Auxiliary Function | Auxiliary contact 1 changeover + signal contact 1 changeover |
| Voltage 1st Auxiliary Function AC | 230 V |
| Max. Current 1st Auxiliary Function | 2 A |
| 2nd Auxiliary Function | None |
| Max. Voltage 2nd Auxiliary Function DC | C |
| Tripping Characteristic | C |
| Number of Poles | 2-pole |
Ambient Conditions
| Characteristic | Value |
|---|---|
| Ambient Temperature | -40 °C ... 70 °C |
| Ambient Temperature | -40 °F ... 158 °F |
| Ambient Temperature Note | Ambient temperatures differing based on current certificates, upon request |
Mechanical Characteristics
| Characteristic | Value |
|---|---|
| Degree of Protection (IP) (IEC 60529) | IP2X |
| Enclosure Material | Thermoplastic |
| Minimum Connection Terminal Size | 1.5 mm² |
| Maximum Connection Terminal Size | 25 mm² |
| Minimum AWG Connection Terminal Size | 16 AWG |
| Maximum AWG Connection Terminal Size | 4 AWG |
| Minimum Connection Terminal Size 2 | 1.5 mm² |
| Maximum Connection Terminal Size 2 | 10 mm² |
| Minimum AWG Connection Terminal Size 2 | 16 AWG |
| Maximum AWG Connection Terminal Size 2 | 8 AWG |
| Min. Connection Terminal Size (Auxiliary) | 0.5 mm² |
| Max. Connection Terminal Size (Auxiliary) | 4 mm² |
| Min. AWG Connection Terminal Size (Auxiliary) | 18 (unece.unit.AWG) |
| Max. AWG Connection Terminal Size (Auxiliary) | 14 (unece.unit.AWG) |
| Minimum Tightening Torque | 2 N·m |
| Maximum Tightening Torque | 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 section difference between the upper and lower chamber.) |
| Allowed connection terminal combinations are indicated in the operating manual. | |
| Width | 83 mm |
| Width (inches) | 3.27 in |
| Length | 165 mm |
| Length (inches) | 6.5 in |
| Mounting Depth | 138.3 mm |
| Mounting Depth (inches) | 5.44 in |
| Weight | 1.3 kg |
| Weight (lbs) | 2.867 lb |
Mounting / Installation
| Characteristic | 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
Diagram 1: Shows the dimensions of the circuit breaker, including width, length, and mounting depth. The overall dimensions are 83 mm width, 165 mm length, and 138.3 mm mounting depth.
Diagram 2: Illustrates the tripping characteristic curve for the circuit breaker. The curve shows the relationship between the multiple of the rated current (I/In) and the tripping time in seconds for both AC and DC circuits, with a 'C' tripping characteristic.
Diagram 3: Provides a footprint plan with dimensions for the 8530/1 unit, indicating it occupies 3 division units.
Accessories
Quadruple Locking Device
A locking/unlocking system that allows individual component locking using up to 4 cylinder locks.
| Description | Article Number |
|---|---|
| Quadruple locking/unlocking system for individual component locking with up to 4 cylinder locks. | 227232 |
Fixing Kit
A fixing kit for mounting the component onto a mounting plate without a DIN rail.
| Description | Article Number |
|---|---|
| Fixing kit for mounting the component onto a mounting plate without a DIN rail. | 276618 |
Cylinder Lock
For locking (shackle Ø 3).
| Description | Article Number |
|---|---|
| For locking (shackle Ø 3) | 107115 |
Note: Technical characteristics, dimensions, weight, construction types, and delivery possibilities are subject to change. Figures are for illustrative purposes only.
