R. STAHL 8530/1-MCB-STA103-C16-000-3 Line Protection Circuit Breaker
Article Number: 272178
Product Overview
The R. STAHL 8530 series line protection circuit breakers, specifically the 8530/1-MCB-STA103-C16-000-3 model, offer excellent current limitation for short circuits and high switching capacities of 10, 15, or 25 kA. These components ensure minimal load on lines and high selectivity to upstream fuses. They are modularly designed 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:
- Conformity to EN 60947-2 for circuit breakers.
- 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 magnetic-thermal releases.
- Ergonomic lever for safe operation and shutdown.
- Padlockable protection (accessories) to prevent re-operation during maintenance.
Technical Characteristics
Explosion Protection
| Parameter | Value |
|---|---|
| Application Area (Zones) | 1, 2 |
| Application Area (Zones) Note | Usable in Zone 21 / 22 with protection via 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), ATEX (FM), China (CCC) |
Electrical Characteristics
| Parameter | Value |
|---|---|
| Rated Operational Voltage AC | 230/400 V |
| Rated Service Current | 16 A |
| Frequency | 50/60 Hz |
| Rated Service Breaking Capacity | 10 kA |
| Electrical Service Life | 2 x 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
| Parameter | 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 |
| Minimum Tightening Torque | 2 N·m |
| Maximum Tightening Torque | 3 N·m |
| Connection Terminal Note | 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.) Combination possibilities of connection terminal sizes are indicated in the operating instructions. |
| 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) |
Mounting / Installation
| Parameter | Value |
|---|---|
| Tightening Torque | 2–3 N·m (17.7 ... 26.6 lbf-in) |
| Auxiliary Contact Tightening Torque | 0.4–0.6 Nm (3.5 ... 5.3 lbf-in) |
Technical Drawings and Dimensions
Tripping Characteristic Curve C:
A graph illustrating the tripping characteristic for the circuit breaker, showing time in seconds versus multiples of the rated current (I/In). The curve indicates the limit from a cold state for AC and DC.
Overall Dimensions (in mm [inches]):
- Width: 83 [3.27]
- Length: 165 [6.50]
- Height/Depth: 138.30 [5.44]
- Mounting rail width: 35 [1.38]
- Overall height: 169.60 [6.68]
- Overall width (with terminals): 91.50 [3.60]
- Overall depth (with terminals): 127.60 [5.02]
- Unit dimensions: 8530/1; 3 division units
Accessories
Quadruple Locking Device
A locking/unlocking system that allows individual locking of the component using up to 4 cylinder locks.
- Part Number: 227232
Fixing Kit
A fixing kit for mounting the component onto a mounting plate without a DIN rail.
- Part Number: 276618
Cylinder Lock
For locking (stirrup Ø 3)
- Part Number: 107115
General Notes
Subject to modifications in technical characteristics, dimensions, weight, construction types, and delivery possibilities. Figures are for indicative purposes only.
