R. STAHL 8146/5-V27 Motor Protection Circuit Breaker
Article No. 249234
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 cables and installations. Standard variants are equipped with an adjustable thermal overload release and a quick-acting electromagnetic release. Additional options must be specified at the time of order.
Key features include:
- Protection for conduction and installation in Ex e and Ex d motors.
- Robust housing made of glass-fiber reinforced polyester resin.
- Optional: undervoltage release, shunt release for opening, ammeter, auxiliary contact.
Technical Data
Explosion Protection
| Validity Scope | Applications (zones) | Certifications |
|---|---|---|
| European Union (ATEX) | 1, 2, 21, 22 | ATEX (PTB), Canada (FM), China (NEPSI), IECEx (PTB), India (PESO) |
| IECEx | 1, 2, 21, 22 | ATEX (EUK), China (CCC) |
| IECEx gas approval | IECEx PTB 06.0090 | |
| IECEx gas explosion protection | Ex db eb IIC T5 Gb | |
| IECEx dust approval | IECEx PTB 06.0090 | |
| IECEx dust explosion protection | Ex tb IIIC T95 °C Db | |
| ATEX gas approval | PTB 01 ATEX 1024 | |
| ATEX gas explosion protection | II 2 G Ex db eb IIC T5 Gb | |
| ATEX dust approval | PTB 01 ATEX 1024 | |
| ATEX dust explosion protection | II 2 D Ex tb IIIC T95 °C Db |
Electrical Data
| Parameter | Value |
|---|---|
| Switching capacity | 16 kW |
| AC tripping voltage | 500 V |
| Current adjustment range | 16-20 A |
| Ammeter available | No |
| Auxiliary contacts | 1 NC |
| Release | Undervoltage release |
| Number of poles | 3 |
| Frequency range | 50-60 Hz |
Mechanical Data
| Parameter | Value |
|---|---|
| Ambient temperature | -20°C ... +40°C (-4 °F ... +104 °F) |
| Degree of protection (IP) | IP66 |
| Degree of protection note | According to EN/IEC 60529 |
| Enclosure material | Polyester resin, reinforced with fiberglass |
| Conductor cross-section, solid wire, min AWG | AWG 20 |
| Conductor cross-section, solid wire, max AWG | AWG 8 |
| Conductor cross-section, fine-stranded wire, min AWG | AWG 20 |
| Type of threaded connection | 8161 |
| Width | 170 mm (6.69 in) |
| Height | 340.5 mm (13.41 in) |
| Depth | 131 mm (5.16 in) |
| Handle color | Black |
| Protection collar color | Black |
| Rotary switch inscription | 0-1 |
| Gasket | Foamed silicone |
| Can be locked with a key | Triple mode in position 0 |
| Weight | 4.4 kg (9.7 lb) |
Components
| Component | Specification |
|---|---|
| Cable glands | 2 x M32 Ø9-21 mm 1 x M25 Ø 7-17 mm |
Diagram showing dimensions: Width 170 [6.69], Height 340.5 [13.41], Depth 131 [5.16]. Other dimensions indicated include 152 [5.98], 161 [6.34], 16 [0.63], 288.50 [11.36]. A circular detail shows Ø7 [Ø 0.28].
Note on current adjustment range: 16 ... 20 A and 20 ... 22.5 A; with / without auxiliary contacts.
Cable Entry
| Model | Auxiliary contacts | Cable glands series 8161 | Closure plug series 8290 | |
|---|---|---|---|---|
| Current adjustment range up to 16 A | without | A, B | M25 x 1.5 | |
| with | A, B, C | M25 x 1.5 | ||
| Current adjustment range 16 ... 20 A, 20 ... 22.5 A | without | C | A, B | M32 x 1.5 |
| with | C | A, B |
