R. STAHL Miniature Circuit Breaker

Model: 8530/1-MCB-STA101-C6-500-2

Art. No. 293994

Key Features

Isolation function in accordance with EN60947-2
Energy limitation class 3
Modular design for simple replacement or expansion
Easy installation on mounting rails in Ex e enclosures
Non-adjustable thermal and magnetic releases
Ergonomically shaped operating lever for safe operation
Padlocks (Accessories) for protection against unauthorized switching during maintenance

Product Overview

The R. STAHL 8530 series miniature circuit breakers are overcurrent protection devices with excellent current limiting capabilities for short circuits. They offer a high switching capacity of 10, 15, or 25 kA, resulting in reduced load on cables and high selectivity for upstream fuses. These components feature a modular design and are available in 1- to 4-pole versions for rated currents from 0.5-63 A. The maximum installation capacity is 4.5 subunits.

Technical Data

Explosion Protection

Application range (zones): 1, 2
Application range (Zone) note: For use in Zone 21/22 when protected by Ex tb/tc enclosure
IECEx gas certificate: IECEx FMG 19.0029U
IECEx gas explosion protection: Ex db eb IIC Gb
ATEX gas certificate: FM19ATEX0191U
ATEX gas explosion protection: II 2 G Ex db eb IIC Gb
Certificates: ATEX (FM), Brazil (ULB), China (CQST), IECEx (FM)
Declaration of conformity: Certificate of conformity (ATEX)

Electrical Data

Rated operational voltage AC: 230 V
Rated operational current: 6 A
Frequency: 50/60 Hz
Rated switching capacity: 10 kA
Electrical service life: 2 x 10⁴
Mechanical service life: 2 x 10⁴
1st auxiliary function: Auxiliary contact 1 change-over contact + fault signal contact 1 change-over contact
1st auxiliary function for AC rated voltage: 230 V
1st auxiliary function for rated current max.: 2 A
2nd auxiliary function: without
2nd auxiliary function voltage max. DC: -
Tripping characteristic: C
No. of poles: 1-pole

Ambient Conditions

Ambient temperature: -40 °C ... 70 °C
Ambient temperature (Fahrenheit): -40 °F ... 158 °F

Mechanical Data

Degree of protection (IP) (IEC 60529): IP2X
Enclosure 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
Min. aux. cont. con. cr.-sect.: 0.5 mm²
Max. aux. cont. conn. cr.-sec.: 4 mm²
Min. aux. co. con. cr.-se. AWG: 18 (unece.unit.AWG)
Connection cross-section of auxiliary contact AWG max.: 14 (unece.unit.AWG)
Min. tightening torque: 2 N·m
Max. tightening torque: 3 N·m
Connection cross-section note: 2-conductor connection (upper and lower chamber at the same time): upper and lower chamber max. 16/10 mm² (A maximum difference of one cross section may be clamped between the upper and lower chamber.) The permitted combinations of connection cross-sections can be found in the operating instructions.

Dimensions

Width: 65 mm (2.56 in)
Length: 165 mm (6.5 in)
Mounting depth: 138.3 mm (5.44 in)

Weight

Weight: 1 kg (2.205 lb)

Mounting / Installation

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

Technical Drawings

Tripping Characteristic C: A graph illustrates the tripping time in seconds versus the multiple of rated current for tripping characteristic C, showing curves for AC and DC, and indicating the function of the auxiliary contacts.

Dimensional Drawings: Detailed diagrams show the overall dimensions of the circuit breaker, including width, length, and mounting depth, with measurements in both millimeters and inches.

Accessories

4-way locking device

A lock-out/tag-out hasp for individually locking the component using up to four cylinder locks.

Art. No.: 227232

Cylinder lock

for closing (bracket Ø 3)
Art. No.: 107115

Fastening set

A fastening set for securing the component on the mounting plate without a DIN rail.

Art. No.: 276618

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