Components for system solutions

MCB Miniature circuit breaker

8530/1-MCB-STA103N-C16-100-4 Art. No. 293876

Key Features

Isolation function in accordance with EN60947-2
Energy limitation class 3
Modular circuit breaker design for simple replacement or expansion
Simple installation: snaps onto the mounting rail in Ex e enclosures
Non-adjustable thermal and magnetic releases
Ergonomically shaped operating lever for safe switching
Padlocks (Accessories) provide protection against being switched on again during maintenance

Product Overview

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

Technical Data

Explosion Protection

Explosion Protection Details
Parameter	Value
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

Electrical Data
Parameter	Value
Rated operational voltage AC	230/400 V
Rated operational current	16 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
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	3-pole + N

Ambient Conditions

Ambient Conditions
Parameter	Value
Ambient temperature	-40 °C ... 70 °C
Ambient temperature	-40 °F ... 158 °F
Ambient temperature note	Deviating ambient temperatures based on current certificates available on request

Mechanical Data

Mechanical Data
Parameter	Value
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

Dimensions
Parameter	Value (mm)	Value (inches)
Width	110	4.33 in
Length	165	6.5 in
Mounting depth	138.3	5.44 in

Weight

Weight
Parameter	Value (kg)	Value (lb)
Weight	1.8	3.969 lb

Mounting / Installation

Mounting / Installation Torque Specifications
Parameter	Value (N·m)	Value (lbf·in)
Tightening torque	2-3	17.7 to 26.6 lbf·in
Tightening torque auxiliary contact	0.4–0.6	3.5 to 5.3 lbf·in

Technical Drawings

Subject to Alterations

Tripping Curve:

A graph displays tripping time in minutes and seconds against the multiple of rated current for tripping characteristic C. The curve shows tripping times from a cold state for AC and DC.

Dimensional Drawings:

Diagrams show the overall dimensions of the circuit breaker in mm and inches, including width, length, and mounting depth. It also illustrates the pitch for a 4-pole configuration.

Accessories

4-way locking device

4-way locking device
Description	Art. No.
A lock-out/tag-out hasp for individually locking the component using up to four cylinder locks.	227232

Cylinder lock

Cylinder lock
Description	Art. No.
for closing (bracket Ø 3)	107115

Fastening set

Fastening set
Description	Art. No.
A fastening set for fastening the component on the mounting plate without a DIN rail	276618

R. STAHL reserves the right to make alterations to the technical data, dimensions, weights, designs, and products available without notice. The illustrations cannot be considered binding.

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