R. STAHL 8146/5-V27 Motor Protection Circuit Breaker

Part Number: 249198

Product Overview

The R. STAHL 8146/5-V27 series motor protection circuit breakers are designed for the protection of Ex e and Ex d motors, as well as associated conductors and systems. Standard versions feature an adjustable, phase-sensitive thermal overcurrent release and a magnetic instantaneous release. Retrofitting is not possible.

Key features include:

Protection for conductors and systems for Ex e and Ex d motors.
Robust housing made of glass-fiber reinforced polyester resin.
Optional: undervoltage release, operating current release, ammeter, auxiliary contact.

Technical Specifications

Explosion Protection

Characteristic	Details
Application Area	European Union (ATEX), IECEx
Application Zones	1, 2, 21, 22
IECEx Gas Certificate	IECEx PTB 06.0090
IECEx Gas Explosion Protection	Ex db eb IIC T5 Gb
IECEx Dust Certificate	IECEx PTB 06.0090
IECEx Dust Explosion Protection	Ex tb IIIC T95 °C Db
ATEX Gas Certificate	PTB 01 ATEX 1024
ATEX Gas Explosion Protection	II 2 G Ex db eb IIC T5 Gb
ATEX Dust Certificate	PTB 01 ATEX 1024
ATEX Dust Explosion Protection	II 2 D Ex tb IIIC T95 °C Db
Certificates	ATEX (PTB), Canada (FM), China (NEPSI), IECEx (PTB), India (Peso)
Conformity Certificate	ATEX (EUK), China (CCC)

Electrical Characteristics

Characteristic	Details
Switching Capacity	7 kW
AC Release Voltage	230 V
Current Adjustment Range	0.25 – 0.4 A
Ammeter Present	No
Auxiliary Contacts	1 NO
Release Type	Undervoltage release
Number of Poles	3
Frequency Range	50-60 Hz

Mechanical Characteristics

Characteristic	Details
Ambient Temperature	-20°C ... +40°C (-4 °F ... +104 °F)
Degree of Protection (IP)	IP66
Degree of Protection Notice	According to EN/IEC 60529
Housing Material	Polyester resin, reinforced with glass fibers
Min. Single Wire Connection Section (AWG)	AWG 16
Max. Single Wire Connection Section (AWG)	AWG 8
Min. Fine Wire Connection Section (AWG)	AWG 16
Type of Screw Terminal	8161
Width	170 mm (6.69 in)
Height	227 mm (8.94 in)
Depth	131 mm (5.16 in)
Handle Color	Black
Protective Cover Color	Black
Rotary Knob Inscription	0-1
Seal	Silicone, foamed
Lockable	Triple lockable at 0
Weight	2.63 kg (5.8 lb)

Components

Cable Glands: 3 x M25 Ø 7-17 mm

Dimensional Drawing

A dimensional drawing is provided showing the overall dimensions of the unit. The drawing indicates measurements in millimeters and inches for width, height, and depth, along with details of cable entry points and internal components. Key dimensions include:

Overall Width: 170 mm [6.69 in]
Overall Height: 227 mm [8.94 in]
Overall Depth: 131 mm [5.16 in]
Internal dimensions and cable entry sizes (M25 x 1.5, M32 x 1.5) are also detailed.

Cable Entries

Version	Auxiliary Contacts Series 8161	Cable Glands	Blanking Plugs Series 8290
Current Adjustment Range up to 16 A	Without: A, B	M25 x 1.5	C
Current Adjustment Range up to 16 A	With: A, B, C	M32 x 1.5	C

Current Adjustment Ranges

Current Adjustment Range	Details
Without	A, B
With	A, B
16 ... 20 A, 20 - 22.5 A	C

	R. STAHL 8146/5-V27 Motor Protection Circuit Breaker Technical specifications and features of the R. STAHL 8146/5-V27 motor protection circuit breaker, designed for Ex e and Ex d motors and associated systems.
	R. STAHL 8146/5-V27 Motor Protection Circuit Breaker Technical specifications and features of the R. STAHL 8146/5-V27 motor protection circuit breaker, designed for Ex e and Ex d applications.
	R. STAHL 8146/5-V27 Motor Protection Circuit Breaker - Technical Data Detailed technical specifications and features of the R. STAHL 8146/5-V27 motor protection circuit breaker, including explosion protection, electrical characteristics, and mechanical specifications.
	R. STAHL 8146/5-V27 Motor Protection Circuit Breaker Datasheet Technical specifications and features of the R. STAHL 8146/5-V27 motor protection circuit breaker, designed for Ex e and Ex d applications.
	R. STAHL 8146/5-V27 Motor Protection Circuit Breaker - Technical Specifications Detailed technical specifications and features of the R. STAHL 8146/5-V27 motor protection circuit breaker, including ATEX and IECEx certifications, electrical characteristics, and mechanical dimensions.
	R. STAHL 8146/5-V27 Motor Protection Circuit Breaker - Technical Data Detailed technical specifications, features, and certifications for the R. STAHL 8146/5-V27 motor protection circuit breaker, designed for Ex e and Ex d applications.
	R. STAHL 8146/5-V27 Motor Protection Circuit Breaker - Technical Data Detailed technical specifications and features of the R. STAHL 8146/5-V27 motor protection circuit breaker, including explosion protection, electrical characteristics, and mechanical specifications.
	R. STAHL 8146/5-V27 Motor Protection Circuit Breaker Technical specifications and features of the R. STAHL 8146/5-V27 motor protection circuit breaker, designed for Ex e and Ex d motors, with detailed information on explosion protection and electrical characteristics.