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

Article No. 249174

Product Description

The R. STAHL 8146/5-V27 series load disconnectors and motor starters are designed for the protection of Ex e and Ex d motors, as well as their associated lines and systems. The standard variants are equipped with an adjustable, phase-sensitive thermal overcurrent release or an electromagnetic instantaneous release, which must be specified at the time of ordering. Retrofitting is not possible.

Key Features:

Line and system protection for Ex e and Ex d motors
Robust housing made of glass-fiber reinforced polyester resin
Optional: undervoltage release, working current release, ammeter, auxiliary contact

Technical Data

Explosion Protection

Category (Zones)	1, 2, 21, 22
IECEx Certificate Gas	IECEx PTB 06.0090
IECEx Gas Explosion Protection	Ex db eb IIC T5 Gb
IECEx Certificate Dust	IECEx PTB 06.0090
IECEx Dust Explosion Protection	Ex tb IIIC T95 °C Db
ATEX Certificate Gas	PTB 01 ATEX 1024
ATEX Gas Explosion Protection	II 2 G Ex db eb IIC T5 Gb
ATEX Certificate Dust	PTB 01 ATEX 1024
ATEX Dust Explosion Protection	II 2 D Ex tb IIIC T95 °C Db
Certifications	ATEX (PTB), IECEx (PTB), India (PESO), Canada (FM), People's Republic of China (NEPSI)
Conformity Declarations	ATEX (EUK), People's Republic of China (CCC)

Electrical Data

Switching capacity	16 kW
Release voltage AC	500 V
Current setting range	2.5 - 4 A
Ammeter available	No
Auxiliary contacts	None
Release	Undervoltage release
Number of poles	3
Frequency range	50 - 60 Hz

Environmental Conditions

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

Mechanical Data

Protection type (IP)	IP66
Protection type note	according to EN/IEC 60529
Housing material	Polyester resin, glass-fiber reinforced
Conductor cross-section solid min. AWG	AWG 16
Conductor cross-section solid max. AWG	AWG 8
Conductor cross-section stranded min. AWG	AWG 16
Type of connection	8161
Width	112.5 mm (4.43 in)
Height	227 mm (8.94 in)
Depth	131 mm (5.16 in)
Handle color	Black
Protective collar color	Black
Labeling rotary handle	0-1
Seal	Silicone, foamed
Lockable in	3 positions in 0-setting
Weight	2.8 kg (6.17 lb)

Components

Cable glands

3 x M25 Ø 7-17 mm

Dimensional Drawing (all dimensions in mm [in]) – Technical changes reserved

[Diagram showing dimensions of the circuit breaker with labels for width, height, depth, and cable entry points. Key dimensions include 112.5 mm width, 227 mm height, 131 mm depth, and cable entry sizes like M25.]

Cable and Line Entries

Execution	Auxiliary contacts	Cable and line entries Series 8161	Blanking plug Series 8290
Current setting range up to 16 A; without auxiliary contacts	A, B	M32 x 1.5	M25 x 1.5
Current setting range up to 16 A; with auxiliary contacts	A, B, C	M32 x 1.5	M25 x 1.5
Current setting range 16 ... 20 A, 20 ... 22.5 A; without auxiliary contacts	C	A, B	C
Current setting range 16 ... 20 A, 20 ... 22.5 A; with auxiliary contacts	A, B	C	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, with detailed electrical and mechanical data.
	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 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 and specifications for the R. STAHL 8146/5-V27 series motor protection circuit breakers, designed for Ex e and Ex d motors.
	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. 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 Detailed technical specifications for the R. STAHL 8146/5-V27 motor protection circuit breaker, including features, electrical characteristics, and explosion protection details for Ex e and Ex d applications.