R. STAHL 8530/1-MCB-STA103-C40-000-3 Circuit Breaker

Article Number: 272182

The R. STAHL 8530/1-MCB-STA103-C40-000-3 circuit breaker is designed for systems requiring high performance and safety, particularly in potentially explosive atmospheres (Ex e installations). It offers robust protection and reliable operation.

Key Features

Switch disconnector function according to EN 60947-2
Energy limitation class 3
Simple replacement or expansion of protection switch installations
Easy mounting via DIN rail clip in Ex e enclosures
Fixed thermal and magnetic trip settings
Ergonomic operating lever for secure connection and disconnection
Protection against reconnection during maintenance using padlocks (Accessories)

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 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), China (CCC)

Electrical Data

Rated operating voltage AC: 230/400 V
Rated operating current: 40 A
Frequency: 50/60 Hz
Rated switching capacity: 10 kA
Electrical service life: 10⁴
Mechanical service life: 2 x 10⁴
1st auxiliary function: None
Rated voltage 1st auxiliary function AC: -
Max. current 1st auxiliary function: -
2nd auxiliary function: None
Max. voltage 2nd auxiliary function DC: C
Trip characteristic: C
Number of poles: 3-pole

Environmental Conditions

Ambient temperature: -40 °C ... 70 °C
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
Minimum connection cross-section: 1.5 mm²
Maximum connection cross-section: 25 mm²
Minimum AWG connection cross-section: 16 AWG
Maximum AWG connection cross-section: 4 AWG
Minimum connection cross-section 2: 1.5 mm²
Maximum connection cross-section 2: 10 mm²
Minimum AWG connection cross-section 2: 16 AWG
Maximum AWG connection cross-section 2: 8 AWG
Minimum tightening torque: 2 N·m
Maximum tightening torque: 3 N·m
Connection cross-section Note: 2 conductor connections (upper and lower chamber simultaneously): lower and upper chamber max. 16 / 10 mm² (only a maximum cross-sectional difference between the upper and lower chamber can be connected). Permitted connection cross-section combinations are listed in the user instructions.
Width: 83 mm (3.27 in)
Length: 165 mm (6.5 in)
Installation depth: 138.3 mm (5.44 in)
Weight: 1.4 kg (3.087 lb)

Mounting / Installation

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

Technical Diagrams

Trip Time Characteristic Curve: The document includes a graph illustrating the tripping characteristic for the 'C' trip characteristic, showing time in seconds and minutes against multiples of the rated current (I/In). This curve indicates the device's response to overcurrents.

Dimensional Drawings: Schematics provide detailed measurements of the circuit breaker, including width, height, and depth, with dimensions provided in both millimeters and inches. These diagrams are essential for installation planning.

Accessories

Cylinder lock: For blocking (shackle Ø 3). Article No.: 107115
Quadruple immobilization device: Locking/tagging tool for individual component locking using up to 4 cylinder locks. Article No.: 227232
Fixing kit: A set of fixings for mounting the component on a mounting plate without a top-hat rail. Article No.: 276618

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

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