R. STAHL LS Miniature Circuit Breaker

Model: 8530/1-MCB-STA103-C16-000-3

Article No.: 272178

Product Overview

The R. STAHL LS Miniature Circuit Breakers of the 8530 series offer good current limitation for short circuits and high breaking capacity (10, 15, or 25 kA). This results in reduced stress on conductors and higher selectivity with upstream fuses. The modules are designed for modularity, available in 1- to 4-pole versions, and for nominal currents from 0.5–63 A. The maximum installation capacity is 4.5 modules (TE).

Key Features:

Tripping function according to EN 60947-2
Energy limitation class 3
Easy replacement or expansion of installations due to modular design
Simple mounting by snapping onto top-hat rails in Ex e enclosures
Fixed thermal and magnetic trip units
Ergonomically shaped operating lever ensures safe switching on and off
Protection against unintentional re-closing during maintenance using padlocks (accessories)

Technical Data

Explosion Protection

Explosion protection area (zones): 1, 2
Explosion protection area (zones) note: Usable in Zone 21 / 22 when protected by enclosure Ex tb / tc
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
Certifications: ATEX (FM), Brazil (ULB), IECEx (FM), People's Republic of China (CQST)
Declarations of conformity: Conformity certification (ATEX), People's Republic of China (CCC)

Electrical Data

Rated operating voltage AC: 230/400 V
Rated operating current: 16 A
Frequency: 50/60 Hz
Rated breaking capacity: 10 kA
Electrical service life: 2 x 10⁴
Mechanical service life: 2 x 10⁴
Auxiliary function 1: None
Auxiliary function 2: None

Tripping Characteristic

Type: C
Poles: 3-pole

Environmental Conditions

Ambient temperature: -40 °C ... 70 °C (-40 °F ... 158 °F)
Ambient temperature note: Deviating ambient temperatures are available upon request based on current certificates.

Mechanical Data

Enclosure type (IP) (IEC 60529): IP2X
Housing material: Thermoplast
Connection cross-section min.: 1.5 mm²
Connection cross-section max.: 25 mm²
Connection cross-section AWG min.: 16 AWG
Connection cross-section AWG max.: 4 AWG
Connection cross-section 2 min.: 1.5 mm²
Connection cross-section 2 max.: 10 mm²
Connection cross-section 2 AWG min.: 16 AWG
Connection cross-section 2 AWG max.: 8 AWG
Tightening torque min.: 2 N·m
Tightening torque max.: 3 N·m
Connection cross-section note: 2-conductor connection (upper and lower chamber simultaneously): upper and lower chamber max. 16 / 10 mm² (A maximum cross-section difference between the upper and lower chamber can be clamped.) The permitted combination possibilities of the connection cross-sections can be found in the operating manual.

Dimensions

Width: 83 mm (3.27 in)
Length: 165 mm (6.5 in)
Installation depth: 138.3 mm (5.44 in)

Weight

Weight: 1.4 kg (3.087 lb)

Mounting / Installation

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

Technical Drawings and Diagrams

Tripping Characteristic C: The document includes a graph illustrating the tripping time in seconds versus multiples of the rated current (I/In) for the C tripping characteristic. It shows curves for 'cold state limit characteristic' for AC and DC.

Dimensional Drawings: Detailed drawings show the dimensions of the 3-pole miniature circuit breaker without auxiliary contacts, with dimensions provided in millimeters and inches. The drawings indicate the overall width, length, and installation depth, as well as the module width (3 TE).

Accessories

Locking Device

Description: A four-way locking device for individually locking the component using up to 4 standard cylinder locks.
Article No.: 227232

Mounting Set

Description: A mounting set for attaching the component to the mounting plate without a top-hat rail.
Article No.: 276618

Cylinder Lock

Description: For locking (shackle Ø 3 mm)
Article No.: 107115

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