R. STAHL 8530/1-MCB-STA101-C20-500-2 Circuit Breaker

Article No. 293999

Product Description

The R. STAHL 8530/1-MCB-STA101-C20-500-2 circuit breaker is part of the system technique components. It features a separator function according to EN 60947-2, energy limitation class 3, and easy replacement or expansion of installations thanks to its modular design for DIN mounting in Ex e enclosures. It has a fixed thermal and magnetic trip adjustment and an ergonomic operating lever for secure connection and disconnection. It also offers protection against re-closing during maintenance using padlocks (accessories).

These circuit breakers offer good short-circuit current limitation and high breaking capacity (10, 15, or 25 kA), resulting in reduced load on electrical lines and improved selectivity with upstream fuses. The modules are designed with a modular structure and are available in 1 to 4-pole models for nominal currents from 0.5–63 A. The maximum mounting capacity is 4.5 division units.

Technical Data

Explosion Protection

Applications (zones)	1, 2
Applications (zones) Note	Can be used in zones 21/22 with Ex tb/tc enclosure protection
IECEX gas approval	IECEX FMG 19.0029U
IECEx Gas Explosion Protection	Ex db eb IIC Gb
ATEX gas approval	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)

Electrical Data

Rated operating voltage AC	230 V
Rated operating 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 + Error 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	-
Tripping characteristic	C
Number of poles	1 pole

Environmental Conditions

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

Mechanical Data

Degree of protection (IP) (IEC 60529)	IP2X
Enclosure material	Thermoplastic
Minimum connection cross-section	1.5 mm²
Maximum connection cross-section	25 mm²
AWG connection cross-section min.	16 AWG
AWG connection cross-section max.	4 AWG
Connection cross-section 2 min.	1.5 mm²
Connection cross-section 2 max.	10 mm²
Connection 2 AWG min.	16 AWG
Connection 2 AWG max.	8 AWG
HIKO connection cross-section min.	0.5 mm²
HIKO connection cross-section max.	4 mm²
HIKO connection cross-section min AWG	18 (unece.unit.AWG)
HIKO connection cross-section max AWG	14 (unece.unit.AWG)
Torque min.	2 N·m
Torque max.	3 N·m
Connection cross-section Note	2 conductor connections (upper and lower chamber simultaneously): lower and upper chamber max. 16 / 10 mm² (only one cross-section difference between the upper and lower chamber can be connected). Permitted connection cross-section combinations are shown in the instructions for use.

Dimensions

Width	65 mm [2.56 in]
Mounting width in inches	2.56 in
Length	165 mm [6.50 in]
Length inches	6.5 in
Installation depth	138.3 mm [5.44 in]
Installation depth inches	5.44 in
Weight	1 kg [2.205 lb]

Mounting / Installation

Torque	2-3 N·m
Torque 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 Diagrams

Tripping Characteristic Curve: The document includes a graph illustrating the tripping characteristic curve for the circuit breaker, showing time versus multiples of the rated current (I/In) for tripping characteristic C. It indicates the behavior from cold state.

Measurement Diagram: A detailed dimensional drawing of the circuit breaker is provided, showing all measurements in millimeters and inches. This includes width, length, installation depth, and mounting dimensions.

Accessories

Cylinder Lock

Cylinder lock for blocking (shackle Ø 3)

Art. No. 107115

Locking Device

Locking tongs / labeling device for individual component locking using up to 4 cylinder locks.

Art. No. 227232

Fixing Kit

A fixing set for mounting the component on the mounting plate without a top-hat rail.

Art. No. 276618

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