R. STAHL 8530/1-MCB-STA102-C25-500-3 Circuit Breaker

Article No.: 267212

Product Overview

The R. STAHL 8530 series circuit breakers offer excellent current limitation in case of short circuits and high breaking capacities of 10, 15, or 25 kA. This results in reduced stress on electrical lines and high selectivity with respect to upstream fuses. The modules are designed with a modular structure, available in 1 to 4 pole versions, and for nominal currents from 0.5–63 A. The maximum mounting width is 4.5 division units.

Key features include:

Switch disconnector according to EN 60947-2
Energy limitation class 3
Simple replacement or expansion of installations thanks to the modular design of the protection switch.
Easy mounting by clipping onto a DIN mounting rail in Ex e enclosures.
Thermally and magnetically tripped with fixed settings.
Ergonomic operating lever ensures safe connection and disconnection.
Protection against reconnection during maintenance using padlocks (accessories).

Model: MY R. STAHL 8530A Certifications: Ex

Technical Data

Explosion Protection

Applications (zones)	Applications (zones) Note	IECEX gas	IECEx Protection against gas explosions	ATEX gas	ATEX protection against gas explosions
1, 2	Can be used in zones 21/22 with Ex tb/tc enclosure protection	IECEX FMG 19.0029U	Ex db eb IIC Gb	FM19ATEX0191U	II 2 G Ex db eb IIC Gb

Certifications

Certifications: ATEX (FM), Brazil (ULB), China (CQST), IECEX (FM)
Certificate of conformity: Certificate of conformity (ATEX), China (CCC)

Electrical Data

Rated operating voltage AC	Rated operating current	Frequency	Rated switching capacity	Electrical service life	Mechanical service life
230/400 V	25 A	50/60 Hz	10 kA	2 x 10⁴	2 x 10⁴

Auxiliary Functions

1st auxiliary function	Voltage 1st auxiliary function AC	Max. current 1st auxiliary function	2nd auxiliary function	Max. voltage 2nd aux. function CC
Auxiliary contact 1 changeover + Signal contact 1 changeover	230 V	2 A	(none)	(none)

Tripping Characteristic

Tripping characteristic: C

Number of poles

Number of poles: 2-pole

Environmental Conditions

Ambient temperature	Ambient temperature	Ambient temperature	Ambient temperature	Ambient temperature Note
-40 °C ... 70 °C	-40 °C ... 70 °C	-40 °F ... 158 °F	-40°F ... +158°F	Divergent ambient temperatures based on valid certificates upon request

Mechanical Data

Degree of protection (IP) (IEC 60529)	Enclosure material	Minimum connection cross-section	Maximum connection cross-section	Minimum AWG connection cross-section	Maximum AWG connection cross-section	Minimum connection cross-section 2	Maximum connection cross-section 2	Minimum AWG connection cross-section 2	Maximum AWG connection cross-section 2	Minimum HIKO connection cross-section	Maximum HIKO connection cross-section	Minimum HIKO AWG connection cross-section	Maximum HIKO AWG connection cross-section
IP2X	Thermoplastic	1.5 mm²	25 mm²	16 AWG	4 AWG	1.5 mm²	10 mm²	16 AWG	8 AWG	0.5 mm²	4 mm²	18 (unece.unit.AWG)	14 (unece.unit.AWG)

Torque Settings

Minimum tightening torque	Maximum tightening torque	Note on connection cross-section
2 N·m	3 N·m	2 conductor connections (upper and lower chamber simultaneously): upper and lower chamber max. 16 / 10 mm² (only one cross-section difference of the upper and lower chamber can be wired). Permitted connection cross-section combinations are listed in the operating instructions.

Dimensions

Width	Mounting width in inches	Length	Length in inches	Installation depth	Installation depth in inches	Weight	Weight
83 mm	3.27 in	165 mm	6.5 in	138.3 mm	5.44 in	1.3 kg	2.867 lb

Mounting / Installation

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

Technical Diagrams

Characteristic Curve: The document includes a tripping characteristic curve showing the relationship between multiples of the rated current (I/In) and time in seconds/minutes for different tripping characteristics (e.g., C). This curve illustrates the time delay before the circuit breaker trips under various overload conditions.

Dimensional Drawings: Detailed drawings show the physical dimensions of the circuit breaker, including width, height, depth, and mounting dimensions, with measurements provided in both millimeters and inches. These diagrams are crucial for installation planning and ensuring compatibility with existing systems.

Accessories

Cylinder Lock

Description: Padlock for individual component locking (up to Ø 3 mm shackle).

Article No.: 107115

Quadruple Immobilization Device

Description: Lockout/tagout tongs for individual component locking using up to 4 cylinder locks.

Article No.: 227232

Fixing Kit

Description: A set of fixings for mounting the component onto a mounting plate without a top hat rail.

Article No.: 276618

General Notes

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

	R. STAHL 8530/1-MCB-STA102-C25-500-3 Miniature Circuit Breaker Technical Data Technical specifications and features of the R. STAHL 8530/1-MCB-STA102-C25-500-3 miniature circuit breaker, including explosion protection, electrical data, mechanical data, and accessories.
	R. STAHL 8530/1-MCB-STA102-C25-500-3 Line Protection Circuit Breaker Technical specifications and features of the R. STAHL 8530/1-MCB-STA102-C25-500-3 line protection circuit breaker, including explosion protection, electrical characteristics, mechanical specifications, and accessories.
	R. STAHL 8530/1-MCB-STA102-C25-500-3 Miniature Circuit Breaker - Technical Specifications Detailed technical specifications for the R. STAHL 8530/1-MCB-STA102-C25-500-3 Miniature Circuit Breaker, including explosion protection, electrical data, mechanical data, and accessories. Suitable for Zone 21/22 hazardous areas.
	R. STAHL 8530/1-MCB-STA102-C2-500-3 Circuit Breaker Technical Data Technical specifications and features of the R. STAHL 8530/1-MCB-STA102-C2-500-3 circuit breaker, including explosion protection, electrical data, mechanical dimensions, and accessories. Suitable for use in Ex e enclosures.
	R. STAHL 8530/1-MCB-STA102-C25-000-2 Circuit Breaker - Technical Specifications and Features Detailed technical specifications, features, and accessories for the R. STAHL 8530/1-MCB-STA102-C25-000-2 circuit breaker, designed for systems in potentially explosive atmospheres.
	R. STAHL 8530/1-MCB-STA102-C1-500-3 Circuit Breaker Technical Data Technical specifications and features of the R. STAHL 8530/1-MCB-STA102-C1-500-3 circuit breaker, including explosion protection, electrical data, mechanical data, and accessories. Suitable for Ex zones.
	R. STAHL 8530/1-MCB-STA102-B25-500-3 Circuit Breaker - Technical Specifications Detailed technical specifications for the R. STAHL 8530/1-MCB-STA102-B25-500-3 circuit breaker, including electrical data, mechanical data, environmental conditions, and accessories. This product is designed for systems requiring explosion protection.
	R. STAHL 8530/1-MCB-STA102-B6-500-3 Circuit Breaker - Technical Specifications Detailed technical specifications for the R. STAHL 8530/1-MCB-STA102-B6-500-3 circuit breaker, including features, electrical data, mechanical data, environmental conditions, and accessories. This document provides comprehensive information for system integrators and engineers.