R. STAHL 8530/1-MCB-STA102-B20-000-2 Circuit Breaker

Article Number: 293919

Product Description

The R. STAHL 8530/1-MCB-STA102-B20-000-2 is a line protection circuit breaker designed for system technology. It offers good current limitation during short circuits and high switching capacities of 10, 15, or 25 kA, ensuring minimal load on lines and high selectivity to upstream fuses.

These components are modularly designed 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

Disconnecting function according to EN 60947-2
Energy limitation class 3
Easy replacement or extension of existing systems due to modular design
Simple mounting by clipping onto a DIN rail in Ex e enclosures
Fixed thermal-magnetic trip units
Ergonomic operating lever for safe switching on and off
Padlock protection (accessories) prevents re-operation during maintenance

Technical Characteristics

Explosion Protection

Application Field (Zones): 1, 2
Application Field (Zones) Note: Usable in Zone 21 / 22 with Ex tb / tc enclosure protection
IECEx Certificate Gas: IECEx FMG 19.0029U
IECEx Gas Explosion Protection: Ex db eb IIC Gb
ATEX Certificate Gas: 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)

Electrical Characteristics

Rated Operational Voltage AC: 230/400 V
Rated Service Current: 20 A
Frequency: 50/60 Hz
Rated Service Breaking Capacity: 10 kA
Electrical Service Life: 2 x 10⁴
Mechanical Service Life: 2 x 10⁴
1st Auxiliary Function: None
Voltage 1st Auxiliary Function AC: -
Current Max. 1st Auxiliary Function: -
2nd Auxiliary Function: None
Max. Voltage 2nd Auxiliary Function DC: -

Tripping Characteristic

Tripping Characteristic: B
Number of Poles: 2 poles

Ambient Conditions

Ambient Temperature: -40 °C ... 70 °C
Ambient Temperature (Fahrenheit): -40 °F ... 158 °F
Ambient Temperature Note: Ambient temperatures differing based on current certificates, upon request

Mechanical Characteristics

Degree of Protection (IP) (IEC 60529): IP2X
Housing Material: Thermoplastic
Connection Terminal Minimum: 1.5 mm²
Connection Terminal 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: For 2-conductor connection (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 connection combinations: Refer to the operating manual for allowed connection terminal combinations.
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

Tightening Torque: 2–3 N·m
Tightening Torque (lbf-in): 17.7 ... 26.6 lbf-in
Tightening Torque Auxiliary Contact: 0.4–0.6 N·m
Tightening Torque Auxiliary Contact (lbf-in): 3.5 ... 5.3 lbf-in

Technical Drawings

Tripping Characteristic Curve: A graph displays the tripping characteristic curve, showing the multiple of the rated current (I/In) against time in seconds and minutes. It indicates the limit curve from a cold state for characteristic B.

Overall Dimensions: Diagrams show the overall dimensions of the circuit breaker in millimeters and inches. The unit is 65 mm (2.56 in) wide, corresponding to 2 division units. Other dimensions include height and depth.

Accessories

Quadruple Locking Device: A locking/unlocking system that allows individual locking of the component using up to 4 cylinder locks. (Article No. 227232)
Fixing Kit: A fixing kit for mounting the component onto a mounting plate without a DIN rail. (Article No. 276618)
Cylinder Lock: For locking (shackle Ø 3). (Article No. 107115)

Disclaimer

Subject to technical modifications, dimensions, weights, construction types, and delivery possibilities. Figures are for indicative purposes only.

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