R. STAHL 8146/5-V27 Molded Case Circuit Breaker for Motor Protection
Art. No. 249234
Product Description
R. STAHL Series 8146/5-V27 molded case circuit breakers are designed for motor protection in Ex e and Ex d environments, as well as for associated conductors and systems. The standard versions are equipped with an adjustable, phase-sensitive thermal overcurrent release or an electromagnetic quick release, which must be specified during the ordering process. These features cannot be retrofitted.
Key features include:
- Conductor and system protection for Ex e and Ex d motors.
- Robust enclosure made of glass fibre reinforced polyester resin.
- Optional features: Undervoltage release, shunt trip, ammeter, auxiliary contact.
Technical Data
Explosion Protection
| Area of application | European Union (ATEX), IECEx |
|---|---|
| Application range (zones) | 1, 2, 22, 22 |
| IECEX gas certificate | IECEx PTB 06.0090 |
| IECEx gas explosion protection | Ex db eb IIC T5 Gb |
| IECEx dust certificate | IECEx PTB 06.0090 |
| IECEx dust explosion protection | Ex tb IIIC T95 °C Db |
| ATEX gas certificate | PTB 01 ATEX 1024 |
| ATEX gas explosion protection | II 2 G Ex db eb IIC T5 Gb |
| ATEX dust certificate | PTB 01 ATEX 1024 |
| ATEX dust explosion protection | II 2 D Ex tb IIIC T95 °C Db |
| Certificates | ATEX (PTB), Canada (FM), China (NEPSI), IECEx (PTB), India (PESO) |
| Declaration of conformity | ATEX (EUK), China (CCC) |
Electrical Data
| Switching capacity | 16 kW |
| AC release voltage | 500 V |
| Current-setting range | 16 – 20 A |
| Ammeter present | No |
| Auxiliary contacts | 1 NC, 1 NO |
| Release | Undervoltage release |
| No. of poles | 3 |
| Frequency range | 50 – 60 Hz |
Ambient Conditions
| Ambient temperature | -20°C ... +40°C |
| Ambient temperature | -4 °F ... +104 °F |
Mechanical Data
| Degree of protection (IP) | IP66 |
| Degree of protection note | according to EN/IEC 60529 |
| Enclosure material | Polyester resin, Glass fibre reinforced |
| Min. solid conn. cr.-sect. AWG | AWG 20 |
| Max. solid conn. cr.-sect. AWG | AWG 8 |
| Min. f.stra. con. cr.-sec. AWG | AWG 20 |
| Type of screw connection | 8161 |
| Width | 170 mm (6.69 in) |
| Height | 340.5 mm (13.41 in) |
| Depth | 131 mm (5.16 in) |
| Handle colour | Black |
| Protective collar colour | Black |
| Rotary actuator labelling | 0 – 1 |
| Seal | Silicone, foamed |
| Lockable in | Three times in 0 position |
| Weight | 4.4 kg (9.7 lb) |
Components
Cable glands and entries
- 2 x M32 Ø9 – 21 mm
- 1 x M25 Ø 7 – 17 mm
Dimensional Drawings
All dimensions in mm [inches] – Subject to Alterations
Diagram showing dimensions: Width 170 mm [6.69 in], Height 340.5 mm [13.41 in], Depth 131 mm [5.16 in]. Includes details on cable entry sizes.
Cable entries
| Version | Auxiliary contacts | Cable glands Series 8161 | Stopping plugs Series 8290 |
|---|---|---|---|
| Current-setting range up to 16 A | without | M25 x 1.5 | M25 x 1.5 |
| Current-setting range 16 to 20 A, 20 to 22.5 A | with | A, B | C |
| Current-setting range up to 16 A | without | A, B, C | – |
| Current-setting range 16 to 20 A, 20 to 22.5 A | with | A, B | C |
We reserve the right to make alterations to the technical data, dimensions, weights, designs and products available without notice. The illustrations cannot be considered binding.
