R. STAHL Motor Protection Circuit Breaker

Model: 8146/5-V27-110-035-10-21-1

Article No.: 249159

Key Features

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

The R. STAHL 8146/5-V27 series motor circuit breakers protect Ex e and Ex d motors as well as associated conductors and systems. Standard versions are equipped with an adjustable, phase-sensitive thermal overcurrent release, or an instantaneous electromagnetic release, which must be specified when ordering. Subsequent retrofitting is not possible.

Technical Characteristics

Explosion Protection

Application Area	Details
Application Field	European Union (ATEX), IECEx
Application Field (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 (EUK), China (CCC)

Electrical Characteristics

Characteristic	Value
Switching capacity	16 kW
AC tripping voltage	500 V
Current adjustment range	0.25 - 0.4 A
Ammeter present	No
Auxiliary contacts	None
Release	Undervoltage release
Number of poles	3
Frequency range	50 - 60 Hz

Ambient Conditions

Condition	Value
Ambient temperature	-20°C ... +40°C
Ambient temperature	-4 °F ... +104 °F

Mechanical Characteristics

Characteristic	Value
Degree of protection (IP)	IP66
Degree of protection notice	according to EN/CEI 60529
Housing material	Polyester resin, reinforced with glass fibers
Min. conductor cross-section, single wire, AWG	AWG 16
Max. conductor cross-section, single wire, AWG	AWG 8
Min. fine-strand conductor cross-section, AWG	AWG 16
Screw connection 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 knob inscription	0-1
Seal	Silicone, foamed
Lockable in position	Triple in 0
Weight	2.63 kg (5.8 lb)

Components

Component	Details
Cable glands	3 x M25 Ø 7-17 mm

Outline Drawing (all dimensions in mm [inches]) - Subject to modifications

Diagram showing the dimensions of the circuit breaker. Key dimensions include:

Width: 112.5 mm [4.43 in]
Height: 227 mm [8.94 in]
Depth: 131 mm [5.16 in]
Various other measurements indicating mounting and connection points.

Cable Entries

Version	Auxiliary Contacts	Cable Glands Series 8161	Blanking Plugs Series 8290
Current adjustment range up to 16 A; without auxiliary contacts	-	M25 x 1.5	M25 x 1.5
Current adjustment range up to 16 A; with auxiliary contacts	A, B	M25 x 1.5	M32 x 1.5
Current adjustment range 16 ... 20 A, 20-22.5 A; without auxiliary contacts	-	A, B	C
Current adjustment range 16 ... 20 A, 20-22.5 A; with auxiliary contacts	A, B	C	-

Subject to modifications in technical characteristics, dimensions, weight, construction types, and delivery options. Figures are for indicative purposes only.

	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 Specifications Detailed technical specifications for the R. STAHL 8146/5-V27 motor protection circuit breaker, including explosion protection data, electrical specifications, and mechanical dimensions. Suitable for Ex e and Ex d applications.
	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. Includes details on explosion protection, electrical characteristics, mechanical specifications, and components.
	R. STAHL 8146/5-V27 Motor Protection Circuit Breaker - Technical Specifications Detailed technical specifications for the R. STAHL 8146/5-V27 motor protection circuit breaker, including explosion protection features, electrical characteristics, and dimensions. Suitable 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. Includes details on explosion protection, electrical characteristics, mechanical specifications, and components.
	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 electrical and mechanical data.
	R. STAHL 8146/5-V27 Motor Protection Circuit Breaker Technical data and specifications for the R. STAHL 8146/5-V27 motor protection circuit breaker, designed for Ex e and Ex d motors. Features include adjustable thermal overload and electromagnetic trip.
	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.