R. STAHL 8146/5-V27 Motor Protection Circuit Breaker
Article Number: 147191
Product Description
The R. STAHL 8146/5-V27 motor protection circuit breakers are designed to protect Ex e and Ex d motors, as well as associated conductors and systems. Standard versions are equipped with an adjustable and phase-sensitive thermal overcurrent release, or an instantaneous electromagnetic release. These must be specified at the time of order, as retrofitting is not possible.
Key Features:
- Protection for motors in Ex e and Ex d environments.
- Robust housing made of glass-fiber reinforced polyester resin.
- Optional: undervoltage release, operating current release, ammeter, auxiliary contact.
Technical Characteristics
Explosion Protection
| Application Area | Application Domain (Zones) | IECEx Gas Certificate | IECEx Gas Explosion Protection | IECEx Dust Certificate | IECEx Dust Explosion Protection | ATEX Gas Certificate | ATEX Gas Explosion Protection | ATEX Dust Certificate | ATEX Dust Explosion Protection | Certificates | Conformity Certificate |
|---|---|---|---|---|---|---|---|---|---|---|---|
| European Union (ATEX) IECEx | 1, 2, 21, 22 | IECEX PTB 06.0090 | Ex db eb IIC T5 Gb | IECEX PTB 06.0090 | Ex tb IIIC T95 °C Db | PTB 01 ATEX 1024 | II 2 G Ex db eb IIC T5 Gb | PTB 01 ATEX 1024 | II 2 D Ex tb IIIC T95 °C Db | ATEX (PTB), Canada (FM), China (NEPSI), IECEx (PTB), India (Peso) | ATEX (EUK), China (CCC) |
Electrical Characteristics
- Release Voltage AC: Not specified
- Current Setting Range: 6.3 – 9 A
- Ammeter Present: No
- Auxiliary Contacts: None
- Number of Poles: 3
- Frequency Range: 50 – 60 Hz
Ambient Conditions
- Ambient Temperature: -20°C ... +40°C (-4°F ... +104°F)
Mechanical Characteristics
- Degree of Protection (IP): IP66
- Degree of Protection Notice: According to EN/IEC 60529
- Housing Material: Polyester resin, reinforced with glass fibers
- Min. Conductor Cross-section (solid): AWG 16
- Max. Conductor Cross-section (solid): AWG 8
- Min. Conductor Cross-section (fine-stranded): AWG 16
- Shutter Type: 8290
- Screw Terminal Type: 8161
Dimensions
- Width: 112.5 mm (4.43 in)
- Height: 227 mm (8.94 in)
- Depth: 131 mm (5.16 in)
- Handle Color: Black
- Cover Color: Black
- Rotary Handle Inscription: 0-1
- Seal: Silicone, foamed
- Lockable: Triple lock at 0
Weight
- Weight: 2.85 kg (6.28 lb)
Components
- Cable Glands: 2 x M25 Ø 7 – 17 mm
- Blanking Plug: 1 x M25
Outline Drawing
A diagram shows the dimensions of the unit. Key dimensions include: Width 112.5 mm [4.43 in], Height 227 mm [8.94 in], Depth 131 mm [5.16 in]. Other indicated dimensions are 94 mm [3.70 in], 175 mm [6.89 in], 161 mm [6.34 in], 16 mm [0.63 in], and a Ø7 [Ø 0.28 in] opening for cable entry.
Cable Entries
| Version | Auxiliary Contacts | Cable Glands Series 8161 | Blanking Plugs Series 8290 |
|---|---|---|---|
| Without auxiliary contacts | A, B | M25 x 1.5 | M25 x 1.5 |
| With auxiliary contacts (up to 16 A) | A, B, C | M32 x 1.5 | – |
Current Setting Range
| Current Setting Range | Without | With | |
|---|---|---|---|
| 16 ... 20 A, 20 – 22.5 A | C | A, B | C |
Modifications to technical characteristics, dimensions, weight, construction types, and delivery possibilities are subject to change. Figures are for indicative purposes only.
