R. STAHL LS Leitungsschutzschalter 8530/1-MCB-STA103-C25-500-4

Article No.: 293902

Product Overview

The R. STAHL 8530 series of miniature circuit breakers offer excellent current limitation for short circuits and high breaking capacity of 10, 15, or 25 kA. This results in reduced stress on conductors and higher selectivity to upstream fuses. The components are modularly designed and available in 1- to 4-pole versions for nominal currents from 0.5–63 A. The maximum installation capacity is 4.5 module widths (TE).

Key Features

Trennerfunktion according to EN 60947-2
Energy Limiting Class 3
Easy installation or expansion of your system due to modular design
Simple mounting by snapping onto mounting rails in Ex e enclosures
Fixed thermal and magnetic releases
Ergonomically shaped operating lever ensures safe switching on and off
Protection against re-closing during maintenance via padlocks (accessory)

Explosion Protection

Parameter	Value
Einsatzbereich (Zonen)	1, 2
Einsatzbereich (Zonen) Hinweis	Usable in Zone 21 / 22 when protected by enclosure Ex tb / tc
IECEx Bescheinigung Gas	IECEx FMG 19.0029U
IECEx Gasexplosionsschutz	Ex db eb IIC Gb
ATEX Bescheinigung Gas	FM19ATEX0191U
ATEX Gasexplosionsschutz	II 2 G Ex db eb IIC Gb
Bescheinigungen	ATEX (FM), Brazil (ULB), IECEx (FM), People's Republic of China (CQST)
Konformitätserklärungen	Conformity certification (ATEX)

Electrical Data

Parameter	Value
Bemessungsbetriebsspannung AC	230/400 V
Bemessungsbetriebsstrom	25 A
Frequenz	50/60 Hz
Bemessungsschaltvermögen	10 kA
Elektrische Lebensdauer	2 x 10⁴
Mechanische Lebensdauer	2 x 10⁴
Hilfsfunktion	1 changeover auxiliary contact + 1 changeover fault signal contact
Bemessungsspannung 1. Hilfsfunktion AC	230 V
Max. Bemessungsstrom 1. Hilfsfunktion	2 A
2. Hilfsfunktion	-
Max. Spannung 2. Hilfsfunktion DC	-
Auslösecharakteristik	C
Polzahl	3-pole

Umgebungsbedingungen

Parameter	Value
Umgebungstemperatur	-40 °C ... 70 °C (-40 °F ... 158 °F)

Mechanische Daten

Parameter	Value
Schutzart (IP) (IEC 60529)	IP2X
Gehäusematerial	Thermoplast
Anschlussquerschnitt min.	1.5 mm²
Anschlussquerschnitt max.	25 mm²
Anschlussquerschnitt AWG min.	16 AWG
Anschlussquerschnitt AWG max.	4 AWG
Anschlussquerschnitt 2 min.	1.5 mm²
Anschlussquerschnitt 2 max.	10 mm²
Anschlussquerschnitt 2 AWG min.	16 AWG
Anschlussquerschnitt 2 AWG max.	8 AWG
Anschlussquerschnitt HIKO min.	0.5 mm²
Anschlussquerschnitt HIKO max.	4 mm²
Anschlussquerschnitt HIKO AWG min.	18 AWG
Anschlussquerschnitt HIKO AWG max.	14 AWG
Anzugsdrehmoment min.	2 N·m
Anzugsdrehmoment max.	3 N·m
Anschlussquerschnitt Hinweis	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 combinations of connection cross-sections can be found in the operating instructions.
Breite	110 mm (4.33 in)
Länge	165 mm (6.5 in)
Einbautiefe	138.3 mm (5.44 in)
Gewicht	1.8 kg (3.969 lb)

Montage / Installation

Parameter	Value
Anzugsdrehmoment	2-3 N·m
Anzugsdrehmoment Ibf in	17.7 ... 26.6 lbf-in
Anzugsdrehmoment Hilfskontakt	0.4-0.6 Nm
Anzugsdrehmoment Hilfskontakt Ibf in	3.5 ... 5.3 lbf in

Accessories

Accessory	Description	Article No.
Befestigungsset	Mounting set for attaching the component to the mounting plate without a top hat rail.	276618
Zylinderschloss	For locking (shackle Ø 3)	107115
Abschließvorrichtung vierfach	A lock-out / tag-out shackle for individually locking the component using up to 4 cylinder locks.	227232

Technical Drawings and Diagrams

Auslösecharakteristik C (Tripping Characteristic C)

A graph showing tripping time in minutes and seconds versus multiples of the rated current (I/In) for both AC and DC, with a limit characteristic curve from a cold state.

Maßzeichnung (Dimensions)

Diagrams showing the dimensions of the circuit breaker in millimeters and inches. Includes overall width, length, and depth.

3-pole, Auxiliary contact 1 W + Fault signal contact 1 W

Diagram illustrating the configuration of a 3-pole circuit breaker with auxiliary and fault signal contacts.

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