R. STAHL 8530/1-MCB-STA103-C63-500-4 Circuit Breaker

Article Number: 293906

Product Overview

The R. STAHL 8530/1-MCB-STA103-C63-500-4 circuit breaker is part of the system components for technology. It offers excellent current limitation in case of short circuits and high breaking capacity (10, 15, or 25 kA), leading to reduced load on electrical lines and improved selectivity with upstream fuses. The modular design allows for 1 to 4 pole configurations and nominal currents from 0.5–63 A. The maximum mounting capacity is 4.5 division units.

Key Features:

Disconnector function according to EN 60947-2
Energy limitation class 3
Easy replacement or expansion of installations due to modular design
Simple mounting via DIN rail in Ex e enclosures
Fixed thermal and magnetic tripping adjustment
Ergonomic operating lever for safe connection and disconnection
Protection against re-closing 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: 63 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 changeover contact + Error signal contact 1 changeover contact
Voltage 1st auxiliary function AC: 230 V
Max. current 1st auxiliary function: 2 A
2nd auxiliary function: None
Max. voltage 2nd aux. function DC: Not specified

Tripping Characteristic

Type: C

Number of Poles

Poles: 3-pole

Environmental Conditions

Ambient temperature: -40 °C ... 70 °C
Ambient temperature (Fahrenheit): -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 terminal size: 1.5 mm²
Maximum connection terminal size: 25 mm²
Minimum AWG connection size: 16 AWG
Maximum AWG connection size: 4 AWG
Minimum connection size 2: 1.5 mm²
Maximum connection size 2: 10 mm²
Minimum AWG connection size 2: 16 AWG
Maximum AWG connection size 2: 8 AWG
Minimum HIKO connection size: 0.5 mm²
Maximum HIKO connection size: 4 mm²
Minimum HIKO AWG connection size: 18 (unece.unit.AWG)
Maximum HIKO AWG connection size: 14 (unece.unit.AWG)
Minimum torque: 2 N·m
Maximum torque: 3 N·m
Connection terminal note: 2 conductor connections (upper and lower chamber simultaneously): upper and lower chamber max. 16 / 10 mm² (only one cross-sectional difference can be connected in the upper and lower chamber). Permitted connection terminal combinations are listed in the operating instructions.

Dimensions

Width: 110 mm (4.33 in)
Mounting width: 110 mm (4.33 in)
Length: 165 mm (6.5 in)
Depth of installation: 138.3 mm (5.44 in)
Weight: 1.8 kg (3.969 lb)

Mounting / Installation

Torque: 2-3 N·m
Torque (lbf in): 17.7 ... 26.6 lbf-in
Torque auxiliary contact: 0.4-0.6 Nm
Torque auxiliary contact (lbf in): 3.5 ... 5.3 lbf in

Technical Diagrams

Tripping Characteristic Curve C: A graph shows the tripping time in seconds against the multiple of the rated current (I/In) for tripping characteristic C. The curve illustrates the time delay for overcurrent protection.

Measurement Diagram: A dimensional drawing shows the overall dimensions of the circuit breaker, including width, length, and installation depth, with measurements provided in both millimeters and inches.

Accessories

Cylinder Lock: For locking (shackle Ø 3). Article Number: 107115
Quadruple immobilization device: Locking/tagging tongs for individual component locking using up to 4 cylinder locks. Article Number: 227232
Fixing Kit: A set of fixings for mounting the component on a mounting plate without a top hat rail. Article Number: 276618

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

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