R. STAHL 8530/1-MCB-STA102-C25-500-3 Line Protection Circuit Breaker
This document provides detailed technical information for the R. STAHL 8530/1-MCB-STA102-C25-500-3 line protection circuit breaker, identified by part number 267212.
Product Overview
The R. STAHL 8530 series line protection circuit breakers offer good current limitation during short circuits with a high switching capacity of 10, 15, or 25 kA. This ensures minimal load on lines and high selectivity with 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:
- Sectioning function according to EN 60947-2
- Energy limitation class 3
- Easy replacement or system extension due to modular design
- Simple mounting by clipping onto a DIN rail in Ex e enclosures
- Fixed magneto-thermal releases
- Ergonomic control lever for safe switching on and off
- Padlock protection (accessories) prevents restarting during maintenance operations
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 | Certificate of conformity (ATEX), China (CCC) |
Electrical Characteristics
| Characteristic | Value |
|---|---|
| Rated operational voltage AC | 230/400 V |
| Rated service 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 | Auxiliary contact: 1 changeover contact + 1 signal contact: 1 changeover contact |
| Voltage 1st auxiliary function AC | 230 V |
| Max. current 1st auxiliary function | 2 A |
| 2nd auxiliary function | None |
| Max. voltage 2nd auxiliary function DC | - |
| 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, on request |
Mechanical Characteristics
| Characteristic | Value |
|---|---|
| Degree of protection (IP) (IEC 60529) | IP2X |
| Enclosure 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. | 0.5 mm² |
| Auxiliary contact connection max. | 4 mm² |
| Auxiliary contact connection min. AWG | 18 (unece.unit.AWG) |
| Auxiliary contact connection max. AWG | 14 (unece.unit.AWG) |
| Torque min. | 2 N·m |
| Torque max. | 3 N·m |
| Connection terminal Note | Connection for 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 combination possibilities for connection terminals are indicated in the user manual. | |
| Width | 83 mm |
| Width in inches | 3.27 in |
| Length | 165 mm |
| Length in inches | 6.5 in |
| Mounting depth | 138.3 mm |
| Mounting depth in inches | 5.44 in |
| Weight | 1.3 kg |
| Weight | 2.867 lb |
Mounting / Installation
| Characteristic | Value |
|---|---|
| Torque | 2–3 N·m |
| Torque in lbf·in | 17.7 ... 26.6 lbf·in |
| Torque auxiliary contact | 0.4–0.6 Nm |
| Torque auxiliary contact lbf·in | 3.5 ... 5.3 lbf·in |
Technical Drawings
Technical drawings are provided, subject to modification.
- Diagram showing 2 poles with auxiliary contacts and error signal contact.
- Tripping characteristic curve for Type C, showing the relationship between multiple of rated current (I/In) and tripping time.
- Dimensional drawing (enclosure plan) with all dimensions in mm [inches].
Accessories
Quadruple Locking Device
A locking/unlocking system that allows individual locking of the component using up to 4 cylinder locks.
| Accessory | Part No. |
|---|---|
| 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 DIN rail mounting plate.
| Accessory | Part No. |
|---|---|
| Fixing kit for mounting the component onto a DIN rail mounting plate without DIN rail. | 276618 |
Cylinder Lock
For locking (shackle Ø 3)
| Accessory | Part No. |
|---|---|
| For locking (shackle Ø 3) | 107115 |
Technical characteristics, dimensions, weight, construction types, and delivery possibilities are subject to change. Figures are for illustrative purposes only.
For further information, contact R. STAHL Schaltgeräte GmbH, Am Bahnhof 30, 74638 WALDENBURG. Tel: +49 7942 943 1700, Email: sales.de@r-stahl.com, Website: r-stahl.com.
