R. STAHL 8146/5-V27 Motor Protection Circuit Breaker
Model: 8146/5-V27-108-125-10-21-1 | Article No.: 249188
Product Overview
The R. STAHL 8146/5-V27 series motor protection circuit breakers are designed to protect Ex e and Ex d motors, as well as associated cables and installations. Standard variants are equipped with an adjustable thermal overcurrent trip and a phase-sensitive, quick-acting electromagnetic trip. Additional options must be specified at the time of ordering.
Key Features:
- Protection for Ex e and Ex d installations.
- Robust fiberglass-reinforced polyester enclosure.
- Optional: Undervoltage release, shunt trip release, ammeter, auxiliary contact.
Technical Data
Explosion Protection
| Attribute | Value |
|---|---|
| Scope of validity | European Union (ATEX), IECEX |
| Applications (zones) | 1, 2, 21, 22 |
| IECEX gas homologation | IECEX PTB 06.0090 |
| IECEx protection against gas explosions | Ex db eb IIC T4 Gb |
| IECEx dust homologation | IECEX PTB 06.0090 |
| IECEx protection against dust explosions | Ex tb IIIC T130 °C Db |
| ATEX gas homologation | PTB 01 ATEX 1024 |
| ATEX protection against gas explosions | II 2 G Ex db eb IIC T4 Gb |
| ATEX dust homologation | PTB 01 ATEX 1024 |
| ATEX protection against dust explosions | II 2 D Ex tb IIIC T130 °C Db |
| Certifications | ATEX (PTB), Canada (FM), China (NEPSI), IECEx (PTB), India (PESO) |
| Certificate of conformity | ATEX (EUK), China (CCC) |
Electrical Data
| Attribute | Value |
|---|---|
| Switching capacity | 12.4 kW |
| Trigger voltage AC | 400 V |
| Current adjustment range | 12.5 – 16 A |
| Ammeter available | No |
| Auxiliary contacts | None |
| Trip type | Undervoltage release |
| Number of poles | 3 |
| Frequency range | 50 – 60 Hz |
Environmental and Mechanical Data
Environmental Conditions
| Attribute | Value |
|---|---|
| Ambient temperature | -20°C ... +40°C (-4 °F ... +104 °F) |
Mechanical Data
| Attribute | Value |
|---|---|
| Degree of protection (IP) | IP66 |
| Degree of protection note | According to EN/IEC 60529 |
| Enclosure material | Fiberglass-reinforced polyester resin |
| Conductor cross-section (solid) min AWG | AWG 16 |
| Conductor cross-section (solid) max AWG | AWG 8 |
| Conductor cross-section (fine-stranded) min AWG | AWG 16 |
| Type of threaded connection | 8161 |
| Width | 112.5 mm (4.43 in) |
| Height | 227 mm (8.94 in) |
| Depth | 131 mm (5.16 in) |
| Handle color | Black |
| Protection collar color | Black |
| Rotary actuator inscription | 0-1 |
| Gasket | Foamed silicone |
| Lockable with key | Triple mode in position 0 |
| Weight | 3.7 kg (8.16 lb) |
Components
Cable Glands
3 x M25 Ø 7-17 mm
Measurement Diagram
A diagram shows the dimensions of the device. Key dimensions include: Width 112.50 mm [4.43 in], Height 227 mm [8.94 in], Depth 131 mm [5.16 in]. Other dimensions indicated are 161 mm [6.34 in], 94 mm [3.70 in], 16 mm [0.63 in], 175 mm [6.89 in], and Ø7 mm [Ø 0.28 in].
Cable Entry
| Model | Auxiliary contacts | Cable Glands series 8161 | Cover Plug series 8290 |
|---|---|---|---|
| Current adjustment range up to 16 A, without auxiliary contact | None | M25 x 1.5 | M25 x 1.5 |
| Current adjustment range up to 16 A, with auxiliary contact | A, B | M25 x 1.5 | M32 x 1.5 |
| Current adjustment range 16 ... 20 A, 20 ... 22.5 A | C | A, B | C |
