R. STAHL LS Miniature Circuit Breaker 8530/1-MCB-STA103-C10-000-3

Article No. 272176

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 with 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).

Trenner function according to EN 60947-2
Energy limitation class 3
Easy replacement or expansion of your system due to modular circuit breaker design
Simple mounting by snapping onto the mounting rail in Ex e enclosures
Fixed thermal and magnetic trip units
Ergonomically shaped operating lever ensures safe switching on and off
Protection against re-switching during maintenance using padlocks (accessory)

Technical Data

Explosion Protection

Feature	Value
Area of Use (Zones)	1, 2
Area of Use (Zones) Note	Usable in Zone 21 / 22 with protection 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)
Compliance Declarations	Compliance Certificate (ATEX), People's Republic of China (CCC)

Electrical Data

Feature	Value
Rated Operating Voltage AC	230/400 V
Rated Operating Current	10 A
Frequency	50/60 Hz
Rated Breaking Capacity	10 kA
Electrical Service Life	2 x 10⁴
Mechanical Service Life	2 x 10⁴
1. Auxiliary Function	-
Rated Voltage 1. Auxiliary Function AC	-
Max. Rated Current 1. Auxiliary Function	-
2. Auxiliary Function	-
Max. Voltage 2. Auxiliary Function DC	-
Trip Characteristic	C
Number of Poles	3-pole

Environmental Conditions

Feature	Value
Ambient Temperature	-40 °C ... 70 °C
Ambient Temperature (Fahrenheit)	-40 °F ... 158 °F
Ambient Temperature Note	Deviating ambient temperatures are available upon request based on current certificates.

Mechanical Data

Feature	Value
Protection 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.
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

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

Technical Drawings and Dimensions

Diagram showing tripping characteristics for Type C breakers. The graph displays time in seconds and minutes against multiples of the rated current (I/In). It includes a limit curve from a cold state for AC and DC.

Diagram showing dimensional drawings of the 3-pole circuit breaker, including width, length, and mounting depth in millimeters and inches.

Accessories

Lockable Device

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

Art. No.: 227232

Mounting Set

A mounting set for fastening the component to the mounting plate without a top-hat rail.

Art. No.: 276618

Cylinder Lock

For locking (shackle Ø 3)

Art. No.: 107115

Note: Technical data, dimensions, weights, designs, and delivery options are subject to change. Illustrations are non-binding.

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