R. STAHL Circuit Breaker

Model: 8530/1-MCB-STA102-B16-000-2

Article Number: 293918

Product Description

The R. STAHL 8530/1-MCB-STA102-B16-000-2 circuit breaker is part of the system technology components. It features a modular design for easy installation and expansion, DIN rail mounting for Ex e enclosures, and fixed thermal and magnetic trip adjustments. The ergonomic operating lever ensures safe connection and disconnection, and it includes protection against reconnection during maintenance via padlocks (accessories).

These circuit breakers offer good current limitation in case of short circuits and high breaking capacities (10, 15, or 25 kA), leading to reduced electrical load on lines and improved selectivity with upstream fuses. They are available in 1 to 4-pole versions 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 protection by Ex tb/tc enclosure
IECEx gas certification	IECEX FMG 19.0029U
IECEx Gas Explosion Protection	Ex db eb IIC Gb
ATEX gas certification	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 operational voltage AC	230/400 V
Rated operational current	16 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	none
Rated voltage 1st auxiliary function AC	-
Maximum current 1st auxiliary function	-
2nd auxiliary function	none
Maximum voltage 2nd auxiliary function DC	-
Trip characteristic	B
Number of poles	2-pole

Environmental Conditions

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

Mechanical Data

Degree of protection (IP) (IEC 60529)	IP2X
Enclosure material	Thermoplastic
Connection terminal cross-section minimum	1.5 mm²
Connection terminal cross-section maximum	25 mm²
Connection terminal AWG min.	16 AWG
Connection terminal AWG max.	4 AWG
Connection terminal 2 minimum	1.5 mm²
Connection terminal 2 maximum	10 mm²
Connection terminal 2 AWG min.	16 AWG
Connection terminal 2 AWG max.	8 AWG
Tightening torque minimum	2 N·m
Tightening torque maximum	3 N·m
Connection terminal Note	2 conductor connections (upper and lower chamber simultaneously): lower and upper chamber max. 16 / 10 mm² (only a difference in cross-section between the upper and lower chamber can be connected). Permitted connection cross-section combinations are shown in the user instructions.
Width	65 mm
Mounting width in inches	2.56 in
Length	165 mm
Length inches	6.5 in
Installation depth	138.3 mm
Installation depth inches	5.44 in
Weight	1 kg
Weight	2.205 lb
Mounting / Installation
Tightening torque	2-3 N·m
Tightening torque lbf·in	17.7 ... 26.6 lbf·in
Tightening torque auxiliary contact	0.4–0.6 Nm
Tightening torque auxiliary contact lbf·in	3.5 ... 5.3 lbf·in

Technical Diagrams

Trip Curve: The document includes a graph illustrating the trip curve characteristic for the circuit breaker, showing the relationship between time and current for different trip characteristics (e.g., B curve for AC and DC). It details the time in seconds and minutes against current in Amperes.

Measurement Diagram: A dimensional drawing is provided, showing the overall dimensions of the circuit breaker in millimeters and inches. Key dimensions include width, length, installation depth, and mounting width.

Accessories

Accessory	Description	Article Number
Cylinder lock	Cylinder lock for blocking (shackle Ø 3)	107115
Quadruple immobilization device	Locking/tagging pliers for individual component locking using up to 4 cylinder locks.	227232
Fixing kit	A fixing kit for mounting the component on the mounting plate without a top-hat rail.	276618

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