R. STAHL LS Leitungsschutzschalter 8530/1-MCB-STA103N-C20-000-4

Art. Nr. 293857

Product Overview

The R. STAHL 8530 series Miniature Circuit Breakers (MCBs) offer excellent 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 modular design allows for 1- to 4-pole configurations and nominal currents from 0.5–63 A. The maximum installation capacity is 4.5 module widths (TE).

Key features include:

Disconnector 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 for secure switching
Protection against re-closing during maintenance via padlock (accessory)

Technical Data

Explosion Protection

Parameter	Value
Einsatzbereich (Zonen)	1, 2
Einsatzbereich (Zonen) Hinweis	Usable in Zone 21 / 22 with protection 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 Declaration (ATEX)

Electrical Data

Parameter	Value
Bemessungsbetriebsspannung AC	230/400 V
Bemessungsbetriebsstrom	20 A
Frequenz	50/60 Hz
Bemessungsschaltvermögen	10 kA
Elektrische Lebensdauer	2 x 10⁴
Mechanische Lebensdauer	2 x 10⁴
Hilfsfunktion	None
Bemessungsspannung 1. Hilfsfunktion AC	-
Max. Bemessungsstrom 1. Hilfsfunktion	-
2. Hilfsfunktion	None
Max. Spannung 2. Hilfsfunktion DC	-
Auslösecharakteristik	C
Polzahl	3-pole+N

Umgebungsbedingungen

Parameter	Value
Umgebungstemperatur	-40 °C ... 70 °C
Umgebungstemperatur Hinweis	Deviating ambient temperatures based on current certificates are available upon request.

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
Anzugsdrehmoment min.	2 N·m
Anzugsdrehmoment max.	3 N·m
Anschlussquerschnitt Hinweis	2-conductor connection (upper and lower chamber simultaneously): max. 16 / 10 mm² for upper and lower chambers (a maximum cross-section difference between the upper and lower chambers may be clamped.) The permitted combination possibilities of the connection cross-sections can be found in the operating instructions.
Breite	110 mm
Breite Zoll	4.33 in
Länge	165 mm
Länge Zoll	6.5 in
Einbautiefe	138.3 mm
Einbautiefe Zoll	5.44 in
Gewicht	1.8 kg
Gewicht	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 N·m
Anzugsdrehmoment Hilfskontakt Ibf·in	3.5 ... 5.3 lbf·in

Technical Drawings and Diagrams

Tripping Characteristic C: A graph illustrating the tripping time in seconds versus the multiple of the rated current (I/In) for the tripping characteristic C. It shows the limit characteristic from a cold state for AC and DC.

Dimensional Drawings:

Overall dimensions: 110 mm (4.33 in) width, 165 mm (6.50 in) length, 138.3 mm (5.44 in) depth.
The unit is 4 module widths (TE).

Accessories

Accessory	Description	Art. Nr.
Befestigungsset (Mounting Set)	A mounting set for attaching the component to the mounting plate without a top-hat rail.	276618
Zylinderschloss (Cylinder Lock)	For locking (Shackle Ø 3)	107115

Abschließvorrichtung vierfach (Four-way Locking Device)

A Lock-out / Tag-out shackle for individual locking of the component, usable with up to 4 cylinder locks.

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