R. STAHL Motor Protection Circuit Breaker - Series 8146/5-V27
Article Number: 249174
Product Description
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, phase-sensitive thermal overload release and a quick-acting electromagnetic release. Additional options must be specified at the time of ordering as they cannot be modified later.
Key features include:
- Protection for Ex e and Ex d installations.
- Robust glass-fiber reinforced polyester enclosure.
- Optional: Undervoltage release, shunt trip release, ammeter, auxiliary contact.
Model: MY R. STAHL 8146N
Hazardous Area Classification: Ex
Technical Data
Explosion Protection
| Attribute | Value |
|---|---|
| Scope of validity | European Union (ATEX), IECEx |
| Applications (zones) | 1, 2, 21, 22 |
| IECEx gas certification | IECEx PTB 06.0090 |
| IECEx gas explosion protection | Ex db eb IIC T5 Gb |
| IECEx dust certification | IECEX PTB 06.0090 |
| IECEx dust explosion protection | Ex tb IIIC T95 °C Db |
| ATEX gas certification | PTB 01 ATEX 1024 |
| ATEX gas explosion protection | II 2 G Ex db eb IIC T5 Gb |
| ATEX dust certification | PTB 01 ATEX 1024 |
| ATEX dust explosion protection | II 2 D Ex tb IIIC T95 °C Db |
| Certifications | ATEX (PTB), Canada (FM), China (NEPSI), IECEx (PTB), India (PESO), ATEX (EUK), China (CCC) |
Electrical Data
| Attribute | Value |
|---|---|
| Switching capacity | 16 kW |
| AC tripping voltage | 500 V |
| Current adjustment range | 2.5-4 A |
| Ammeter available | No |
| Auxiliary contacts | None |
| Release | Undervoltage release |
| Number of poles | 3 |
| Frequency range | 50-60 Hz |
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 | Glass-fiber reinforced polyester resin |
| Conductor cross-section min. solid wire AWG | AWG 16 |
| Conductor cross-section max. solid wire AWG | AWG 8 |
| Conductor cross-section min. fine-strand wire 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 |
| Seal | Foamed silicone |
| Lockable | Triple mode in position 0 |
| Weight | 2.8 kg (6.17 lb) |
Components
Cable glands
| Attribute | Value |
|---|---|
| Cable glands | 3 x M25 Ø 7-17 mm |
Measurement Diagram
Measurement diagram (all measurements in inches) - Subject to modifications.
[Diagram showing dimensions: Width 4.43 in, Height 8.94 in, Depth 5.16 in, with various callouts for cable entry and mounting dimensions.]
Cable Entry
| Model | Auxiliary Contacts | Cable Glands Series 8161 | Blanking Plug 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 up to 16 A, with auxiliary contacts | A, B, C | - | C |
| Current adjustment range 16 ... 20 A, 20 ... 22.5 A | C | A, B | - |
| Current adjustment range 16 ... 20 A, 20 ... 22.5 A | - | A, B | C |
Disclaimer
R. STAHL reserves the right to modify technical data, dimensions, weights, constructions, and delivery options.
