R. STAHL 8530/1-MCB-STA103-B6-000-3 Circuit Breaker
Article No. 272160
Product Overview
The R. STAHL 8530/1-MCB-STA103-B6-000-3 circuit breaker is part of the system components for technical systems. It is designed for use in Ex e installations and offers excellent current limitation in case of short circuits with a high breaking capacity of 10, 15, or 25 kA. This results in reduced load on electrical lines and high selectivity with respect to upstream fuses. The modules feature a modular design, are available in 1 to 4-pole versions, and support nominal currents from 0.5–63 A. The maximum mounting capacity is 4.5 division units.
Image: A series of modular circuit breakers designed for Ex e installations, showcasing their compact and stackable design.
Key Features
- Separator function according to EN 60947-2
- Energy limitation class 3
- Simple replacement or expansion of installations due to modular design
- Simple mounting via DIN rail clip in Ex e enclosures
- Thermally and magnetically tripped with fixed settings
- Ergonomic operating lever ensures safe connection and disconnection
- Protection against re-energization during maintenance using padlocks (Accessories)
Technical Data
Explosion Protection
| Parameter | Value |
|---|---|
| Applications (zones) | 1, 2 |
| Applications (zones) Note | Can be used in zones 21/22 with Ex tb/tc enclosure protection |
| IECEX gas homologation | IECEx FMG 19.0029U |
| IECEx gas explosion protection | Ex db eb IIC Gb |
| ATEX gas homologation | FM19ATEX0191U |
| ATEX gas explosion protection | II 2 G Ex db eb IIC Gb |
| Certifications | ATEX (FM), Brazil (ULB), China (CQST), IECEX (FM) |
| Certificate of conformity | Certificate of conformity (ATEX), China (CCC) |
Electrical Data
| Parameter | Value |
|---|---|
| Rated operating voltage AC | 230/400 V |
| Rated operating current | 6 A |
| Frequency | 50/60 Hz |
| Rated switching capacity | 10 kA |
| Electrical service life | 2 x 10⁴ |
| Mechanical service life | 2 x 10⁵ |
| 1st auxiliary function | None |
| 1st auxiliary voltage AC | - |
| Max. current 1st auxiliary function | - |
| 2nd auxiliary function | None |
| Max. voltage 2nd auxiliary function DC | - |
| Tripping characteristic | B |
| Number of poles | 3-pole |
Environmental Conditions
| Parameter | Value |
|---|---|
| Ambient temperature | -40 °C ... 70 °C |
| Ambient temperature | -40 °F ... 158 °F |
| Ambient temperature Note | Divergent ambient temperatures based on valid certificates upon request |
Mechanical Data
| Parameter | Value |
|---|---|
| Degree of protection (IP) (IEC 60529) | IP2X |
| Enclosure material | Thermoplastic |
| Minimum connection cross-section | 1.5 mm² |
| Maximum connection cross-section | 25 mm² |
| Minimum AWG connection cross-section | 16 AWG |
| Maximum AWG connection cross-section | 4 AWG |
| Minimum 2nd connection cross-section | 1.5 mm² |
| Maximum 2nd connection cross-section | 10 mm² |
| Minimum 2nd AWG connection cross-section | 16 AWG |
| Maximum 2nd AWG connection cross-section | 8 AWG |
| Minimum tightening torque | 2 N·m |
| Maximum tightening torque | 3 N·m |
| Connection cross-section Note | 2 connections of conductors (upper and lower chamber simultaneously): lower and upper chamber max. 16 / 10 mm² (only one cross-sectional difference between the upper and lower chamber can be connected). Permitted connection cross-section combinations are listed in the user manual. |
| Width | 83 mm (3.27 in) |
| Width for mounting | 3.27 in |
| Length | 165 mm (6.5 in) |
| Length inches | 6.5 in |
| Installation depth | 138.3 mm (5.44 in) |
| Installation depth inches | 5.44 in |
| Weight | 1.4 kg (3.087 lb) |
| Weight lbs | 3.087 lb |
Mounting / Installation
| Parameter | Value |
|---|---|
| Tightening torque | 2-3 N·m (17.7 ... 26.6 lbf-in) |
| Tightening torque auxiliary contact | 0.4–0.6 N·m (3.5 ... 5.3 lbf·in) |
Technical Diagrams
Diagram 1: Shows the tripping characteristic curve for the circuit breaker, illustrating the relationship between current (multiple of rated current) and tripping time (seconds/minutes) for both AC and DC under different temperature conditions. The characteristic curve 'B' is indicated.
Diagram 2: Provides dimensional drawings of the circuit breaker, including width, height, and depth measurements in both millimeters and inches. It indicates the unit is 3 division units wide.
Accessories
| Accessory | Description | Article No. |
|---|---|---|
| Cylinder Lock | For locking (shackle Ø 3 mm) | 107115 |
| Quadruple immobilization device | Locking/tagging shears for individual component locking using up to 4 cylinder locks. | 227232 |
| Fixing Kit | A fixing set for mounting the component on the mounting plate without a top hat rail. | 276618 |
General Information
R. STAHL Schaltgeräte GmbH
Am Bahnhof 30 | 74638 WALDENBURG
Tel. +49 7942 943 1700 | +49 7942 943 1777 | Email: sales.de@r-stahl.com | r-stahl.com
Note: R. STAHL reserves the right to modify technical data, dimensions, weights, designs, and delivery options.
