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

Article Number: 249174

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. They feature a robust housing made of glass-fiber reinforced polyester resin. Optional accessories include a undervoltage release, a thermal overload release, an ammeter, and an auxiliary contact. Standard versions are equipped with an adjustable, phase-sensitive thermal maximum release or an instantaneous electromagnetic release, which must be specified at the time of order. Retrofitting is not possible.

Technical Characteristics

Explosion Protection

Area of Application	European Union (ATEX), IECEx
Application Areas (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)
Certificate of Conformity	ATEX (ELK), China (CCC)

Electrical Characteristics

Switching Capacity	16 kW
AC Tripping Voltage	500 V
Current Adjustment Range	2.5-4 A
Ammeter Present	No
Auxiliary Contacts	None
Release	Undervoltage release
Number of Poles	3
Frequency Range	50-60 Hz

Ambient Conditions

Ambient Temperature	-20°C ... +40°C (-4 °F ... +104 °F)

Mechanical Characteristics

Degree of Protection (IP)	IP66
Degree of Protection Approval	According to EN/IECI 60529
Housing Material	Polyester resin, reinforced with glass fibers
Connection Section Solid Conductor Min. AWG	AWG 16
Connection Section Solid Conductor Max. AWG	AWG 8
Connection Section Fine-Stranded Conductor Min. AWG	AWG 16
Screw Terminal Type	8161
Width	112.5 mm (4.43 in)
Height	227 mm (8.94 in)
Depth	131 mm (5.16 in)
Handle Color	Black
Protection Cap Color	Black
Rotary Handle Inscription	0-1
Seal	Silicone, foamed
Lockable	Triple lock at 0
Weight	2.8 kg (6.17 lb)

Components

Cable Glands	3 x M25 Ø 7 17 mm

Outline Drawing (Dimensions in mm [inches])

A detailed outline drawing shows the physical dimensions of the unit. Key dimensions include:

Width: 112.5 mm [4.43 in]
Height: 227 mm [8.94 in]
Depth: 131 mm [5.16 in]
Overall height including handle: 175 mm [6.89 in]
Mounting hole diameter: Ø7 [Ø 0.28 in]

Cable Entries

Current Adjustment Range	Version	Auxiliary Contacts	Cable Glands Series 8161	Blanking Plugs Series 8290
Up to 16 A	Without	A, B	M25 x 1.5	M25 x 1.5
Up to 16 A	With	A, B, C	M32 x 1.5	C
16 ... 20 A, 20 22.5 A	Without	C	A, B	-
	With	A, B	C	-

	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 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 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 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 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 Data Detailed technical specifications and features of the R. STAHL 8146/5-V27 motor protection circuit breaker, including explosion protection, electrical data, mechanical data, and component information.
	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 data, 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.