R. STAHL 8146/5-V27 Motor Protection Circuit Breaker
Article No. 249234
Product Overview
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, which must be specified at the time of order. Retrofitting is not possible.
Key features include:
- Protection for conductors and systems for Ex e and Ex d motors.
- Robust housing made of glass fiber-reinforced polyester resin.
- Optional: undervoltage release, working current release, ammeter, auxiliary contact.
Technical Specifications
Explosion Protection
| Application Area | European Union (ATEX) | IECEx |
|---|---|---|
| Application Domain (Zones) | 1, 2, 21, 22 | 1, 2, 21, 22 |
| IECEx Gas Certificate | IECEx PTB 06.0090 | IECEx PTB 06.0090 |
| IECEx Protection Against Gas Explosion | Ex db eb IIC T5 Gb | Ex db eb IIC T5 Gb |
| IECEx Dust Certificate | IECEx PTB 06.0090 | IECEx PTB 06.0090 |
| IECEx Protection Against Dust Explosion | Ex tb IIIC T95 °C Db | Ex tb IIIC T95 °C Db |
| ATEX Gas Certificate | PTB 01 ATEX 1024 | PTB 01 ATEX 1024 |
| ATEX Protection Against Gas Explosion | II 2 G Ex db eb IIC T5 Gb | II 2 G Ex db eb IIC T5 Gb |
| ATEX Dust Certificate | PTB 01 ATEX 1024 | PTB 01 ATEX 1024 |
| ATEX Protection Against Dust Explosion | II 2 D Ex tb IIIC T95 °C Db | II 2 D Ex tb IIIC T95 °C Db |
| Certificates | ATEX (PTB), Canada (FM), China (NEPSI), IECEx (PTB), India (Peso) | |
| Certificate of Conformity | ATEX (ELK), China (CCC) |
Electrical Characteristics
| Characteristic | Value |
|---|---|
| Rated switching capacity | 16 kW |
| AC trigger voltage | 500 V |
| Current setting range | 16-20 A |
| Ammeter present | No |
| Auxiliary contacts | 1 NF, 1 NO |
| Release | Release for undervoltage |
| Number of poles | 3 |
| Frequency range | 50-60 Hz |
Ambient Conditions
| Condition | Value |
|---|---|
| Ambient temperature | -20°C ... +40°C (-4 °F ... +104 °F) |
Mechanical Characteristics
| Characteristic | Value |
|---|---|
| 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 wire, AWG | AWG 20 |
| Max. conductor cross-section, solid wire, AWG | AWG 8 |
| Min. conductor cross-section, fine-stranded wire, AWG | AWG 20 |
| Type of screw terminal | 8161 |
| Width | 170 mm (6.69 in) |
| Height | 340.5 mm (13.41 in) |
| Depth | 131 mm (5.16 in) |
| Handle color | Black |
| Protection cap color | Black |
| Rotary knob inscription | 0-1 |
| Seal | Silicone, foamed |
| Lockable | Triple lock in 0 position |
| Weight | 4.4 kg (9.7 lb) |
Components
| Component | Details |
|---|---|
| Cable glands | 2 x M32 Ø 9 ... 21 mm, 1 x M25 Ø 7 ... 17 mm |
Outline Drawing
Dimensions are in mm (inches). Subject to modifications.
Overall Dimensions:
- Width: 170 [6.69]
- Height: 340.5 [13.41]
- Depth: 131 [5.16]
Cable Entry Details:
- Cable glands: 2 x M32 (Ø 9 ... 21 mm), 1 x M25 (Ø 7 ... 17 mm)
Cable Entry Versions
| Current Setting Range | Without Auxiliary Contacts | With Auxiliary Contacts | Cable Glands Series 8161 | Blanking Plugs Series 8290 |
|---|---|---|---|---|
| Up to 16 A | A, B | A, B, C | M25 x 1.5 | M25 x 1.5 |
| 16 ... 20 A, 20 ... 22.5 A | C | A, B | M32 x 1.5 | - |
Subject to modifications in technical specifications, dimensions, weight, construction types, and delivery options. Figures are for indicative purposes only.
Contact Information:
R. STAHL Schaltgeräte GmbH | Am Bahnhof 30 | 74638 WALDENBURG
Tel. +49 7942 943 1700 | +49 7942 943 1777 | Email: sales.de@r-stahl.com | r-stahl.com
