R. STAHL 8530/1-MCB-STA101-B32-500-2 Line Protection Circuit Breaker

Article Number: 293985

Product Description

The R. STAHL 8530 series line protection circuit breakers offer reliable current limitation for short circuits with high switching capacities of 10, 15, or 25 kA. These components are designed for minimal line load and high selectivity with upstream fuses. They are modular, available in 1 to 4 pole versions, with nominal currents from 0.5–63 A, and a maximum installation capacity of 4.5 partial units (UP).

Key Features

Function of disconnection 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 operation and shutdown
Padlockable (accessories) to prevent restart during maintenance

Technical Characteristics

Explosion Protection

Application Domain (Zones)	1, 2
Application Domain (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 2G Ex db eb IIC Gb
Certificates	ATEX (FM), Brazil (ULB), China (CQST), IECEx (FM)
Certificate of Conformity	ATEX Conformity Certificate (ATEX)

Electrical Characteristics

Rated operational voltage AC	230 V
Rated service current	32 A
Frequency	50/60 Hz
Rated ultimate short-circuit breaking capacity	10 kA
Electrical service life	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	-
Tripping Characteristic	B
Number of poles	1 pole

Ambient Conditions

Ambient Temperature	-40 °C ... 70 °C (-40°F ... +158°F)
Ambient Temperature Note	Ambient temperatures different from the above based on current certificates, upon request.

Mechanical Characteristics

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
Conn. terminal aux. contact min.	0.5 mm²
Conn. terminal aux. contact max.	4 mm²
Conn. terminal aux. contact min. AWG	18 (unece.unit.AWG)
Conn. terminal aux. contact max. AWG	14 (unece.unit.AWG)
Clamping torque min.	2 N·m
Clamping torque max.	3 N·m
Connection Terminal Note	Connection of 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.) Permitted combination possibilities for connection cross-sections are indicated in the operating manual.

Dimensions

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)

Mounting / Installation

Clamping torque	2-3 N·m (17.7 ... 26.6 lbf-in)
Clamping torque auxiliary contact	0.4-0.6 Nm (3.5 ... 5.3 lbf-in)

Technical Drawings

Tripping Characteristic Curve

The graph shows the tripping characteristic for a cold state. The x-axis represents multiples of the rated current (I/In), and the y-axis represents the tripping time in seconds or minutes. Different curves are shown for AC and DC, with characteristic B indicated.

Overall Dimensions

Diagrams showing the overall dimensions of the circuit breaker unit (8530/1; 2 division units) are provided, with measurements in millimeters and inches. Key dimensions include width (65 mm / 2.56 in), length (165 mm / 6.50 in), mounting depth (138.3 mm / 5.44 in), and height (91.50 mm / 3.60 in).

Accessories

Quadruple Locking Device

A locking/unlocking system that allows individual locking of the component using up to 4 cylinder locks.

Description	Article Number
Quadruple locking/unlocking device for individual locking of the component using up to 4 cylinder locks.	227232

Fixing Kit

Description	Article Number
A fixing kit for mounting the component onto a mounting plate without a DIN rail.	276618

Cylinder Lock

Description	Article Number
For locking (shackle Ø 3)	107115

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