R. STAHL 8530/1-MCB-STA103N-B32-000-4 Circuit Breaker

This document provides detailed technical specifications for the R. STAHL 8530/1-MCB-STA103N-B32-000-4 circuit breaker, part number 293849.

Key Features

Function as a separator according to EN 60947-2
Energy limitation class 3
Easy replacement or expansion of installations due to modular design
Simple mounting via DIN rail snap-on in Ex e enclosures
Fixed thermal and magnetic tripping adjustment
Ergonomic operating lever for secure connection and disconnection
Protection against reconnection during maintenance using padlocks (accessories)

Technical Data

Explosion Protection

Applications (zones): 1, 2
Applications (zones) Note: Can be used in zones 21/22 with Ex tb/tc enclosure protection
Homologation IECEx gas: IECEx FMG 19.0029U
IECEx Gas Explosion Protection: Ex db eb IIC Gb
Homologation ATEX gas: FM19ATEX0191U
ATEX Gas Explosion Protection: II 2 G Ex db eb IIC Gb
Certifications: ATEX (FM), Brazil (ULB), China (CQST), IECEx (FM)
Certificate of Conformity: Certificate of Conformity (ATEX)

Electrical Data

Rated operating voltage AC: 230/400 V
Rated operating current: 32 A
Frequency: 50/60 Hz
Rated switching capacity: 10 kA
Electrical service life: 2 x 10⁴
Mechanical service life: 2 x 10⁵
1st auxiliary function: none
Rated voltage 1st auxiliary function AC: -
Max. current 1st auxiliary function: -
2nd auxiliary function: none
Max. voltage 2nd aux. function DC: -
Trip characteristic: B
Number of poles: 3 pole + N

Environmental Conditions

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

Mechanical Data

Degree of protection (IP) (IEC 60529): IP2X
Enclosure material: Thermoplastic
Minimum connection cross-section: 1.5 mm²
Maximum connection cross-section: 25 mm²
Minimum AWG connection cross-section: 16 AWG
Maximum AWG connection cross-section: 4 AWG
Minimum connection cross-section 2: 1.5 mm²
Maximum connection cross-section 2: 10 mm²
Minimum AWG connection cross-section 2: 16 AWG
Maximum AWG connection cross-section 2: 8 AWG
Minimum tightening torque: 2 N·m
Maximum tightening torque: 3 N·m
Connection cross-section Note: 2 conductor connections (upper and lower chamber simultaneously): max. lower and upper chamber 16 / 10 mm² (only a maximum difference in cross-section between the upper and lower chamber can be connected). Permitted connection cross-section combinations are shown in the user manual.
Width: 110 mm (4.33 in)
Length: 165 mm (6.5 in)
Installation depth: 138.3 mm (5.44 in)
Weight: 1.8 kg (3.969 lb)

Mounting / Installation

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 Diagrams

Trip Time Characteristic

A graph shows the trip time characteristic for type B, for AC and DC, indicating the time in seconds and minutes against the current multiple of the rated current. The characteristic is shown for a cold state limit.

Measurement Diagram

Diagrams illustrate the dimensions of the circuit breaker in millimeters and inches. The main unit is 8530/1, designed for 4 division units. Key dimensions include width (110 mm / 4.33 in), length (165 mm / 6.50 in), and installation depth (138.3 mm / 5.44 in).

Accessories

Cylinder lock: For locking (shackle Ø 3), Part No. 107115
Quadruple immobilization device: Locking/tagging tongs for individual component locking using up to 4 cylinder locks, Part No. 227232
Fixing kit: A fixing set for mounting the component on the mounting plate without a top-hat rail, Part No. 276618

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

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