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

Article No. 249216

Product Description

The R. STAHL 8146/5-V27 motor protection circuit breakers are designed for the protection of Ex e and Ex d motors, as well as associated conductors and systems. They feature a robust glass-fiber reinforced polyester resin housing. Optional accessories include a undervoltage release, a series or shunt trip coil, and an ammeter. Standard versions are equipped with an adjustable thermal overload release and a phase-sensitive or instantaneous electromagnetic release, which must be specified at the time of order. Retrofitting is not possible.

Technical Characteristics

Protection Against Explosions

Application Field European Union (ATEX) IECEx
Application Zones 1, 2, 21, 22 IECEx
IECEx Certificate Gas IECEX PTB 06.0090
IECEx Protection Against Gas Explosion Ex db eb IIC T5 Gb
IECEx Certificate Dust IECEX PTB 06.0090
IECEx Protection Against Dust Explosion Ex tb IIIC T95 °C Db
ATEX Certificate Gas PTB 01 ATEX 1024
ATEX Protection Against Gas Explosion II 2 G Ex db eb IIC T5 Gb
ATEX Certificate Dust PTB 01 ATEX 1024
ATEX Protection Against Dust Explosion 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 7 kW
AC Release Voltage 230 V
Current Adjustment Range 4-6.3 A
Ammeter Present No
Auxiliary Contacts 1 NF, 1 NO
Release Undervoltage release
Number of Poles 3
Frequency Range 50-60 Hz

Mechanical Characteristics

Ambient Conditions

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

Mechanical Characteristics

Characteristic Value
Protection Rating (IP) IP66
Protection Rating Approval according to EN/CEI 60529
Housing Material Polyester resin, reinforced with glass fibers
Min. Conductor Cross-Section (Solid Wire) AWG 16
Max. Conductor Cross-Section (Solid Wire) AWG 8
Min. Conductor Cross-Section (Fine Wire) AWG 16
Connection Type Screw terminal 8161
Width 170 mm (6.69 in)
Height 227 mm (8.94 in)
Depth 131 mm (5.16 in)
Handle Color Black
Protection Cover Color Black
Rotary Handle Inscription 0-1
Seal Silicone, foamed
Lockable Triple in 0
Weight 2.8 kg (6.17 lb)

Components

Component Specification
Cable Glands 3 x M25 Ø 7-17 mm
Outline Drawing (All dimensions in mm [inches]) - Subject to modifications

Drawing Description: The drawing shows a rectangular device with dimensions labeled. Key dimensions include:

  • Overall Width: 170 [6.69]
  • Overall Height: 227 [8.94]
  • Overall Depth: 131 [5.16]
  • Internal depth: 161 [6.34]
  • Mounting hole diameter: 7 [0.28]
  • Cable entry detail showing M25 gland.

Cable Entries

Current Adjustment Range Cable Glands Series 8161 Blanking Plugs Series 8290
M25 x 1.5 M32 x 1.5
Without, up to 10 A A, B -- C
With, 16 ... 20 A, 20 ... 22.5 A A, B A, B C

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

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