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

Article No. 249250

Product Description

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

Key features include:

Protection for conduction and installation in Ex e and Ex d motors.
Robust glass-fiber reinforced polyester enclosure.
Optional: undervoltage release, shunt opening release, ammeter, auxiliary contact.

Model: MY R. STAHL 8146N ®

Technical Data

Explosion Protection

Area of Validity: European Union (ATEX), IECEx
Applications (Zones): 1, 2, 21, 22
IECEx Gas Approval: IECEx PTB 06.0090
IECEx Gas Explosion Protection: Ex db eb IIC T5 Gb
IECEx Dust Approval: IECEx PTB 06.0090
IECEx Dust Explosion Protection: Ex tb IIIC T95 °C Db
ATEX Gas Approval: PTB 01 ATEX 1024
ATEX Gas Explosion Protection: II 2 G Ex db eb IIC T5 Gb
ATEX Dust Approval: PTB 01 ATEX 1024
ATEX Dust Explosion Protection: 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

Trip Voltage AC: 16 – 20 A
Adjustable Current Range: 16 – 20 A
Ammeter Available: No
Auxiliary Contacts: 1 NO, 1 NC
Release: None
Number of Poles: 3
Frequency Range: 50 – 60 Hz

Environmental Conditions

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

Mechanical Data

Degree of Protection (IP): IP66
Degree of Protection Note: According to EN/IEC 60529
Enclosure Material: Glass-fiber reinforced polyester resin
Connection Terminal Solid Wire Min AWG: AWG 20
Connection Terminal Solid Wire Max AWG: AWG 8
Connection Terminal Fine Wire Min AWG: AWG 20
Type of Threaded Connection: 8161
Width: 170 mm (6.69 in)
Height: 340.5 mm (13.41 in)
Depth: 131 mm (5.16 in)
Handle Color: Black
Protection Collar Color: Black
Rotary Actuator Inscription: 0-1
Seal: Foamed silicone
Can be Locked with Key: Triple mode in position 0
Weight: 4.25 kg (9.37 lb)

Components

Cable Glands: 2 x M32 Ø 9 – 21 mm, 1 x M25 Ø 7 ... 17 mm

Dimensional Diagram

A diagram shows the dimensions of the device in millimeters and inches. Key dimensions include width (170 mm / 6.69 in), height (340.5 mm / 13.41 in), and depth (131 mm / 5.16 in). It also indicates a connection terminal size of Ø7 mm (Ø 0.28 in).

Cable Entry

The table below details cable entry options based on the model, auxiliary contacts, and cable glands:

Model	Auxiliary Contacts	Cable Glands Series 8161	Cable Glands Series 8290	Closing Plug
Range of adjustment up to 16 A	Without	A, B	-	-
	With	A, B, C	M25 x 1.5	M32 x 1.5
Range of adjustment 16 ... 20 A, 20 ... 22.5 A	Without	C	A, B	-
	With	C	A, B, C	-

R. STAHL reserves the right to modify technical data, dimensions, weights, constructions, and delivery options.

	R. STAHL 8146/5-V27 Motor Protection Circuit Breaker - Technical Data Detailed technical specifications and features of the R. STAHL 8146/5-V27 molded case circuit breaker for motor protection, including explosion protection, electrical data, and mechanical data.
	R. STAHL 8146/5-V27 Motor Protection Circuit Breaker - Technical Specifications Detailed technical specifications for the R. STAHL 8146/5-V27 molded case circuit breaker, designed for motor protection in hazardous environments (Ex e, Ex d). Includes information on explosion protection, electrical data, mechanical data, and certifications.
	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 Data Technical specifications and features of the R. STAHL 8146/5-V27 molded case circuit breaker for motor protection, including explosion protection, electrical data, and mechanical data.
	R. STAHL 8146/5-V27 Motor Protection Circuit Breaker - Technical Specifications Detailed technical specifications for the R. STAHL 8146/5-V27 molded case circuit breaker for motor protection, including explosion protection, electrical data, and mechanical data.
	R. STAHL 8146/5-V27 Molded Case Circuit Breaker for Motor Protection Technical specifications and features of the R. STAHL 8146/5-V27 molded case circuit breaker for motor protection, designed for Ex e and Ex d motors.
	R. STAHL 8146/5-V27 Molded Case Circuit Breaker for Motor Protection Technical specifications and data for the R. STAHL 8146/5-V27 molded case circuit breaker, designed for motor protection in Ex e and Ex d environments. Includes details on explosion protection, electrical data, mechanical data, and cable entries.
	R. STAHL 8146/5-V27 Molded Case Circuit Breaker for Motor Protection Technical specifications and features of the R. STAHL Series 8146/5-V27 molded case circuit breaker for motor protection, designed for Ex e and Ex d motors and associated conductors and systems.