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

Article Number: 249216

Product Description

The R. STAHL 8146/5-V27 series motor protection circuit breakers are designed to protect Ex e and Ex d motors, as well as their associated cables and installations. Standard variants are equipped with an adjustable thermal overload release and a quick-acting electromagnetic release. Additional options must be specified at the time of ordering as they cannot be modified later.

Key Features

Protection for motors in Ex e and Ex d environments.
Robust enclosure made of glass-fiber reinforced polyester resin.
Optional features include: undervoltage release, shunt opening release, ammeter, auxiliary contact.

Technical Data

Explosion Protection

Parameter	Value
Scope of validity	European Union (ATEX), IECEX
Applications (zones)	1, 2, 21, 22
Homologation IECEX gas	IECEX PTB 06.0090
IECEx protection against gas explosions	Ex db eb IIC T5 Gb
Homologation IECEx dust	IECEX PTB 06.0090
IECEx protection against dust explosions	Ex tb IIIC T95 °C Db
Homologation ATEX gas	PTB 01 ATEX 1024
ATEX protection against gas explosions	II 2 G Ex db eb IIC T5 Gb
Homologation ATEX dust	PTB 01 ATEX 1024
ATEX protection against dust explosions	II 2 D Ex tb IIIC T95 °C Db
Certifications	ATEX (PTB), Canada (FM), China (NEPSI), IECEx (PTB), India (PESO)
Certificate of conformity	ATEX (EUK), China (CCC)

Electrical Data

Parameter	Value
Switching capacity	7 kW
Trigger voltage AC	230 V
Current adjustment range	4-6.3 A
Ammeter available	No
Auxiliary contacts	1 NC, 1 NA
Release	Undervoltage release
Number of poles	3
Frequency range	50-60 Hz

Environmental Conditions

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

Mechanical Data

Parameter	Value
Degree of protection (IP)	IP66
Degree of protection note	According to EN/IEC 60529
Enclosure material	Glass-fiber reinforced polyester resin
Conductor cross-section, solid min AWG	AWG 16
Conductor cross-section, solid max AWG	AWG 8
Conductor cross-section, fine-stranded min AWG	AWG 16
Type of threaded connection	8161
Width	170 mm (6.69 in)
Height	227 mm (8.94 in)
Depth	131 mm (5.16 in)
Handle color	Black
Protection collar color	Black
Rotary switch inscription	0-1
Gasket	Foamed silicone
Can be locked with key	In triple mode in position 0
Weight	2.8 kg (6.17 lb)

Components

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

Dimensions Diagram

Diagram showing the external dimensions of the unit. Key dimensions include width (170 mm / 6.69 in), height (227 mm / 8.94 in), and depth (131 mm / 5.16 in). Other indicated dimensions are 152 mm [5.98 in], 161 mm [6.34 in], 16 mm [0.63 in], 175 mm [6.89 in], and a diameter of 7 mm [0.28 in] for cable entry.

Cable Entry and Auxiliary Contacts

Current Adjustment Range up to 16 A	Cable Entry	Auxiliary Contacts	Cable Glands	Sealing Plug
Without	A, B	-	M25 x 1.5	M25 x 1.5
With	A, B, C	C	M32 x 1.5	M25 x 1.5

Current Adjustment Range

Range	Current Adjustment
Without	A, B
With	A, B, C
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, with detailed data on explosion protection, electrical and mechanical characteristics, and cable entries.
	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 for the R. STAHL 8146/5-V27 motor protection circuit breaker, including ATEX and IECEx certifications, electrical data, mechanical dimensions, and environmental conditions.
	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 - 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 and features of the R. STAHL 8146/5-V27 motor protection circuit breaker, including explosion protection, electrical data, mechanical data, and components 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 data, electrical specifications, and mechanical dimensions.
	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.