R. STAHL 8530/1-MCB-STA101-C20-500-2 Line Protection Circuit Breaker
This document provides detailed technical information for the R. STAHL 8530/1-MCB-STA101-C20-500-2 line protection circuit breaker, part number 293999.
Product Overview
The R. STAHL 8530 series line protection circuit breakers offer excellent current limitation for short circuits and high switching capacity of 10, 15, or 25 kA. They ensure minimal load on lines and high selectivity with upstream fuses. These 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:
- Disconnecting function according to EN 60947-2
- Energy limitation class 3
- Easy replacement or system extension due to modular design
- Simple mounting via snap-on onto a DIN rail in Ex e enclosures
- Fixed thermal-magnetic releases
- Ergonomic control lever for safe operation
- Padlock protection prevents re-operation during maintenance
Technical Characteristics
Explosion Protection
| Characteristic | Specification |
|---|---|
| Area of application (zones) | 1, 2 |
| Area of application (zones) Note | Usable in Zone 21 / 22 with protection via Ex tb / tc enclosure |
| IECEx certificate gas | IECEx FMG 19.0029U |
| IECEx gas explosion protection | Ex db eb IIC Gb |
| Certificat ATEX gas | FM19ATEX0191U |
| ATEX gas explosion protection | II 2G Ex db eb IIC Gb |
| Certificates | ATEX (FM), Brazil (ULB), China (CQST), IECEX (FM) |
| Certificate of conformity | Certificate of conformity (ATEX) |
Electrical Characteristics
| Characteristic | Specification |
|---|---|
| Rated operational voltage AC | 230 V |
| Rated service current | 20 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 | - |
| Trip characteristic | C |
| Number of poles | 1 pole |
Mechanical Characteristics
| Characteristic | Specification |
|---|---|
| Ambient temperature | -40 °C ... 70 °C |
| Ambient temperature | -40 °F ... 158 °F |
| Ambient temperature Note | Ambient temperatures different from current certificates, on request |
| 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 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 |
| Auxiliary contact connection min. cross-section | 0.5 mm² |
| Auxiliary contact connection max. cross-section | 4 mm² |
| Auxiliary contact connection min. AWG | 18 (unece.unit.AWG) |
| Auxiliary contact connection max. AWG | 14 (unece.unit.AWG) |
| Clamping torque min. | 2 N·m |
| Clamping torque max. | 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 cross-section difference between the upper and lower chamber.) |
Dimensions and Installation
| Characteristic | Specification |
|---|---|
| Width | 65 mm (2.56 in) |
| Length | 165 mm (6.5 in) |
| Mounting depth | 138.3 mm (5.44 in) |
| Weight | 1 kg (2.205 lb) |
| Clamping torque | 2-3 N·m (17.7 ... 26.6 lbf·in) |
| Clamping torque auxiliary contact | 0.4–0.6 N·m (3.5 ... 5.3 lbf·in) |
Technical Drawings
Trip Characteristic C
Diagram showing tripping curves for AC and DC, with time in seconds and multiple of rated current.
Outline Drawing
Diagrams showing the dimensions of the circuit breaker in millimeters and inches.
Accessories
Quadruple Locking Device
A locking/unlocking system that allows individual locking of the component using up to 4 cylinder locks.
- Part No.: 227232
Fixing Kit
A fixing kit to attach the component to the mounting plate without a DIN rail.
- Part No.: 276618
Cylinder Lock
For locking (shackle Ø 3)
- Part No.: 107115
Subject to technical modifications, dimensions, weights, construction types, and delivery possibilities. Figures are for illustrative purposes only.
