R. STAHL 8530/1-MCB-STA102-B6-500-3 Circuit Breaker

Article Number: 272123

[Image of R. STAHL circuit breaker]

System Technology Components - Circuit Breaker

The R. STAHL 8530 series circuit breakers offer excellent short-circuit current limitation and high breaking capacity (10, 15, or 25 kA). This results in reduced stress on electrical lines and improved selectivity with respect to upstream fuses. The modules feature a modular design, available in 1 to 4-pole versions and for nominal currents from 0.5–63 A. The maximum mounting width is 4.5 division units.

Key Features:

Protective Separator Function: Complies with EN 60947-2.
Energy Limitation Class: Class 3.
Easy Installation: Simple replacement or expansion of installations due to modular design, suitable for DIN mounting rails in Ex e enclosures.
Fixed Trip Settings: Thermal and magnetic trip adjusted.
Ergonomic Lever: Ensures safe connection and disconnection.
Reconnection Protection: Protection against reconnection during maintenance using padlocks (accessories).

Technical Data

Explosion Protection

Applications (zones)	Applications (zones) Note	IECEX gas homologation	IECEx gas explosion protection	ATEX gas homologation	ATEX gas explosion protection
1, 2	Can be used in zones 21/22 with Ex tb/tc enclosure protection	IECEX FMG 19.0029U	Ex db eb IIC Gb	FM19ATEX0191U	II 2 G Ex db eb IIC Gb

Certifications

Certifications	Certificate of conformity
ATEX (FM), Brasil (ULB), China (CQST), IECEX (FM)	Certificate of conformity (ATEX), China (CCC)

Electrical Data

Operating voltage AC	Rated switching capacity	Frequency	Rated switching capacity	Electrical service life	Mechanical service life	1st auxiliary function	Voltage 1st auxiliary function AC	Max. current 1st auxiliary function	2nd auxiliary function	Max. voltage 2nd aux. CC	Trip characteristic	Number of poles
230/400 V	6 A	50/60 Hz	10 kA	2 x 10⁴	2 x 10⁴	Auxiliary contact 1 changeover + Error signal contact 1 changeover	230 V	2 A	none		B	2-pole

Environmental Conditions

Ambient temperature	Ambient temperature	Ambient temperature	Ambient temperature	Ambient temperature Note
-40 °C ... 70 °C	-40 °C ... 70 °C	-40 °F ... 158 °F	-40 °F ... 158 °F	Divergent ambient temperatures based on valid certificates upon request

Mechanical Data

Degree of protection (IP) (IEC 60529)	Enclosure material	Minimum connection cross-section	Maximum connection cross-section	Minimum AWG connection cross-section	Maximum AWG connection cross-section	Minimum connection cross-section 2	Maximum connection cross-section 2	Minimum AWG connection cross-section 2	Maximum AWG connection cross-section 2	Minimum HIKO connection cross-section	Maximum HIKO connection cross-section	Minimum HIKO connection cross-section AWG	Maximum HIKO connection cross-section AWG	Minimum tightening torque	Maximum tightening torque	Connection cross-section Note
IP2X	Thermoplastic	1.5 mm²	25 mm²	16 AWG	4 AWG	1.5 mm²	10 mm²	16 AWG	8 AWG	0.5 mm²	4 mm²	18 (unece.unit.AWG)	14 (unece.unit.AWG)	2 N·m	3 N·m	2 conductor connections (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 wired). Permitted connection cross-section combinations are shown in the instructions for use.

Dimensions

Width	Mounting width in inches	Length	Length in inches	Installation depth	Installation depth in inches	Weight	Weight in lb
83 mm	3.27 in	165 mm	6.5 in	138.3 mm	5.44 in	1.3 kg	2.867 lb

Mounting / Installation

Tightening torque	Tightening torque lbf in	Tightening torque auxiliary contact	Tightening torque auxiliary contact lbf in
2–3 N·m	17.7 ... 26.6 lbf-in	0.4–0.6 Nm	3.5 ... 5.3 lbf in

Accessories

Cylinder Lock

[Image of cylinder lock]

Cylinder lock / tagout device for individual component lockout using up to 4 cylinder locks.

Article No.: 107115

Quadruple Immobilization Device

[Image of lockout/tagout tool]

Lockout/tagout pliers for individual component lockout using up to 4 cylinder locks.

Article No.: 227232

Fixing Kit

[Image of fixing kit]

Set of fixings for mounting the component on the mounting plate without a top-hat rail.

Article No.: 276618

R. STAHL reserves the right to modify technical data, dimensions, weights, designs, and delivery options.

Document Version: V 0.106 ES

Date: 2025-06-27

Manufacturer: R. STAHL Schaltgeräte GmbH | Am Bahnhof 30 | 74638 WALDENBURG

Contact: Tel. +49 7942 943 1700 | +49 7942 943 1777 | Email: sales.de@r-stahl.com | r-stahl.com

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