R. STAHL 8530/1-MCB-STA102-C25-000-2 Line Protection Circuit Breaker
Article Number: 293973
Product Overview
The R. STAHL 8530 series line protection circuit breakers, specifically the 8530/1-MCB-STA102-C25-000-2, offer excellent current limitation for short circuits and high switching capacities of 10, 15, or 25 kA. This ensures minimal stress on lines and high selectivity with upstream fuses. These components 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:
- Switch-disconnector function according to EN 60947-2
- Energy limitation class 3
- Easy replacement or expansion of systems due to modular design
- Simple plug-in mounting on a DIN rail in Ex e enclosures
- Fixed thermal-magnetic releases
- Ergonomic operating lever for safe switching on and off
- Padlock protection (accessories) prevents re-operation during maintenance
Technical Specifications
Explosion Protection
| Parameter | Specification |
|---|---|
| Application Area (Zones) | 1, 2 |
| Application Area (Zones) Note | Usable in Zone 21 / 22 with Ex tb / tc enclosure protection |
| 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 | Certificate of Conformity (ATEX) |
Electrical Characteristics
| Parameter | Specification |
|---|---|
| Rated Operational Voltage AC | 230/400 V |
| Rated Operational Current | 25 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 | 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 | 2 poles |
Ambient Conditions
| Parameter | Specification |
|---|---|
| Ambient Temperature | -40 °C ... 70 °C (-40 °F ... 158 °F) |
| Ambient Temperature Note | Different ambient temperatures based on current certificates, on request |
Mechanical Characteristics
| Parameter | 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 min. | 1.5 mm² |
| Connection Terminal 2 max. | 10 mm² |
| Connection Terminal 2 AWG min. | 16 AWG |
| Connection Terminal 2 AWG max. | 8 AWG |
| Torque min. | 2 N·m |
| Torque max. | 3 N·m |
| Connection Terminal Note | Connection terminal 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.) Combination possibilities of connection terminals are indicated in the operating manual. |
Dimensions
| Parameter | Specification |
|---|---|
| Width | 65 mm (2.56 in) |
| Length | 165 mm (6.5 in) |
| Mounting Depth | 138.3 mm (5.44 in) |
Weight
| Parameter | Specification |
|---|---|
| Weight | 1 kg (2.205 lb) |
Mounting / Installation
| Parameter | Specification |
|---|---|
| Torque | 2–3 N·m |
| Torque in lbf·in | 17.7 ... 26.6 lbf·in |
| Auxiliary Contact Torque | 0.4–0.6 N·m |
| Auxiliary Contact Torque lbf·in | 3.5 ... 5.3 lbf·in |
Technical Drawings
Technical Drawings - Subject to change
Tripping Characteristic Curve C
A graph showing the tripping characteristic for a Type C circuit breaker, illustrating the relationship between multiples of the rated current (I/In) and tripping time in seconds and minutes. The curve indicates the limit from the cold state.
Overall Dimensions (all dimensions in mm [inches]) – Subject to change
Diagrams showing the physical dimensions of the circuit breaker, including width, height, and depth, with callouts for different parts and the number of division units.
2-pole, without auxiliary contact
Accessories
Quadruple Locking Device
A locking/unlocking system that allows individual locking of the component 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 attaching the component to the mounting plate without a DIN rail.
| Description | Article Number |
|---|---|
| A fixing kit for attaching the component to the mounting plate without a DIN rail. | 276618 |
Cylinder Lock
For locking (stirrup Ø 3)
| Description | Article Number |
|---|---|
| For locking (stirrup Ø 3) | 107115 |
Subject to change regarding technical characteristics, dimensions, weight, construction types, and delivery possibilities. Figures are for indicative purposes only.
