R. STAHL 8146/5-V27 Motor Protection Circuit Breaker
Article No. 249188
Product Description
The R. STAHL 8146/5-V27 motor circuit breakers 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 when ordering. Retrofitting is not possible.
Key Features:
- Protection of conductors and systems for Ex e and Ex d motors.
- Robust housing made of glass-fiber reinforced polyester resin.
- Optional: undervoltage release, operating current release, ammeter, auxiliary contact.
Technical Specifications
Explosion Protection
| Application Area | Union européenne (ATEX), IECEx |
|---|---|
| Application Zones | 1, 2, 21, 22 |
| IECEx Certificate Gas | IECEx PTB 06.0090 |
| IECEx Protection Against Gas Explosion | Ex db eb IIC T4 Gb |
| IECEx Certificate Dust | IECEx PTB 06.0090 |
| IECEx Protection Against Dust Explosion | Ex tb IIIC T130 °C Db |
| ATEX Certificate Gas | PTB 01 ATEX 1024 |
| ATEX Protection Against Gas Explosion | II 2 G Ex db eb IIC T4 Gb |
| ATEX Certificate Dust | PTB 01 ATEX 1024 |
| ATEX Protection Against Dust Explosion | II 2 D Ex tb IIIC T130 °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 | 12.4 kW |
| Undervoltage Release Voltage AC | 400 V |
| Current Adjustment Range | 12.5 – 16 A |
| Ammeter Present | No |
| Auxiliary Contacts | None |
| Release | Undervoltage release |
| Number of Poles | 3 |
| Frequency Range | 50-60 Hz |
Mechanical Characteristics
| Characteristic | Value |
|---|---|
| Degree of Protection (IP) | IP66 |
| Degree of Protection Approval | according to EN/IEC 60529 |
| Housing Material | Polyester resin, reinforced with glass fibers |
| Min. Single Wire Connection Section AWG | AWG 16 |
| Max. Single Wire Connection Section AWG | AWG 8 |
| Min. Fine Wire Connection Section AWG | AWG 16 |
| Screw Connection Type | 8161 |
| Width | 112.5 mm (4.43 in) |
| Height | 227 mm (8.94 in) |
| Depth | 131 mm (5.16 in) |
| Handle Color | Black |
| Protection Cover Color | Black |
| Rotary Switch Inscription | 0-1 |
| Seal | Silicone, foamed |
| Lockable in position | Triple in 0 |
| Weight | 3.7 kg (8.16 lb) |
Components
Cable Glands: 3 x M25 Ø 7 17 mm
Outline Drawing
The dimensions shown are in mm [inches] and are subject to change.
Cable Entries
| Version | Auxiliary Contacts | Cable Glands Series 8161 | Blanking Plugs Series 8290 |
|---|---|---|---|
| Current Adjustment Range up to 16 A; without auxiliary contacts | None | M25 x 1.5 | M25 x 1.5 |
| Current Adjustment Range up to 16 A; with auxiliary contacts | A, B | M25 x 1.5 | M32 x 1.5 |
| Current Adjustment Range 16 ... 20 A, 20 22.5 A; without auxiliary contacts | C | A, B | C |
| Current Adjustment Range 16 ... 20 A, 20 22.5 A; with auxiliary contacts | C | A, B | C |
Ambient Conditions
| Condition | Value |
|---|---|
| Ambient Temperature | -20°C ... +40°C (-4 °F ... +104 °F) |
Subject to technical modifications, dimensions, weights, construction types and delivery possibilities. Figures are for indicative purposes only.
