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

Article No.: 249250

Product Overview

The R. STAHL Series 8146/5-V27 molded case circuit breakers are designed for motor protection in Ex e and Ex d environments, as well as for the protection of associated conductors and systems. Standard versions include an adjustable, phase-sensitive thermal overcurrent release or an electromagnetic quick release, which must be specified during the ordering process and cannot be retrofitted.

Key Features:

Conductor and system protection for Ex e and Ex d motors.
Robust enclosure made of glass fibre reinforced polyester resin.
Optional features include: Undervoltage release, shunt trip, ammeter, auxiliary contact.

Technical Data

Explosion Protection

Area of application: European Union (ATEX), IECEx
Application range (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)
Declaration of conformity: ATEX (EUK), China (CCC)

Electrical Data

AC release voltage: -
Current-setting range: 16 - 20 A
Ammeter present: No
Auxiliary contacts: 1 NO, 1 NC
Release: without
No. of poles: 3
Frequency range: 50 - 60 Hz

Ambient Conditions

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

Mechanical Data

Degree of protection (IP): IP66
Enclosure material: Polyester resin, Glass fibre reinforced
Min. solid conn. cr.-sect. AWG: AWG 20
Max. solid conn. cr.-sect. AWG: AWG 8
Min. f.stra. con. cr.-sec. AWG: AWG 20
Type of screw connection: 8161
Width: 170 mm (6.69 in)
Height: 340.5 mm (13.41 in)
Depth: 131 mm (5.16 in)
Handle colour: Black
Protective collar colour: Black
Rotary actuator labelling: 0-1
Seal: Silicone, foamed
Lockable in: Three times in 0 position
Weight: 4.25 kg (9.37 lb)

Components

Cable glands and entries

Standard configuration: 2 x M32 Ø 9 ... 21 mm, 1 x M25 Ø 7 ... 17 mm

Dimensional Drawings: All dimensions in mm [inches] – Subject to Alterations

Diagram Description: A technical drawing showing the dimensions of the circuit breaker. Key dimensions indicated are width (170 [6.69]), height (340.5 [13.41]), and depth (131 [5.16]). Specific connection points and cable entry sizes are also illustrated.

Cable entries

Current-setting range	Version	Cable glands Series 8161	Stopping plugs Series 8290
up to 16 A	without	M25 x 1.5	--
up to 16 A	with	A, B, C	C
16 to 20 A, 20 to 22.5 A	without	A, B	C
16 to 20 A, 20 to 22.5 A	with	A, B	C

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