R. STAHL 63 A Wall-Mounting Socket
Model: 8579/31-406-S011
Article No.: 203489
Product Overview
The R. STAHL Series 8579/31 sockets are designed for Zone 1/21 applications, offering full AC-3 switching capacity up to 63 A in 4- and 5-pole versions. The high degree of protection (IP66) ensures maximum protection against dust and water ingress in demanding environments.
Key Features:
- Reliable load disconnect switch with an easily visible, lockable handle and clear switching position display.
- Integrated auxiliary contact for control and signalling, with options for pluggable Ex e or Ex i auxiliary contacts.
- Wide operating temperature range.
- High mechanical impact and shock resistance.
- Perfect protection against penetration of liquids and dusts.
- 3D data available for download.
Self-cleaning lamellar contacts ensure optimal contact. Plugs can be inserted and removed quickly and easily in the zero position. The load disconnect switch incorporates a mechanical locking device and a handle that can be locked in the 0 or I position, enhancing safety.
[Image: R. STAHL Series 8579A 63 A wall-mounting socket, showing its robust construction and the visible load disconnect switch handle.]
Technical Data
Explosion Protection
| Parameter | Value |
|---|---|
| Area of application | European Union (ATEX) |
| Area of application Note | Other country markings available on request |
| Application range (zones) | 1, 2, 21, 22 |
| IECEx gas certificate | IECEx PTB 06.0020 |
| IECEx gas explosion protection | Ex db eb IIC T6... T5 Gb |
| IECEx dust certificate | IECEx PTB 06.0020 |
| IECEx dust explosion protection | Ex tb IIIC T60 °C / T75 °C Db |
| ATEX gas certificate | PTB 01 ATEX 1150 |
| ATEX gas explosion protection | II 2 G Ex db eb IIC T6 ... T5 Gb |
| ATEX dust certificate | PTB 01 ATEX 1150 |
| ATEX dust explosion protection | II 2 D Ex tb IIIC T60 °C / T75 °C Db |
| Certificates | ATEX (PTB), IECEx (PTB), Korea (KGS), Taiwan (ITRI) |
| Declaration of conformity | ATEX (EGK) |
Electrical Data
| Parameter | Value |
|---|---|
| Rated operational voltage AC | 380 ... 415 V AC |
| Rated operational current | max. 63 A |
| Electrical service life | > 2x10⁴ switching cycles |
| Mechanical service life | > 2x10⁴ switching cycles |
| Type of voltage | Low voltage |
| Switching capacity main contacts | AC-3 690 V, 63 A 18.5 kW: 220/230/240 V 30 kW: 380/400/415 V 37 kW: 500 V 55 kW: 690 V |
| Auxiliary contacts | 2 (1 NO + 1 NC) |
| Frequency range | 50 / 60 Hz |
Device Specific Data
| Parameter | Value |
|---|---|
| Back-up fuse with thermal protection | 80 A gG |
| Back-up fuse without thermal protection | 63 A gG |
Ambient Conditions
| Parameter | Value |
|---|---|
| Ambient temperature | -30 °C to +55 °C (-22 °F to +131 °F) |
Mechanical Data
| Parameter | Value |
|---|---|
| Degree of protection IP (IEC 60529) | IP66 |
| IP degree of protection (IEC 60079) | IP66 |
| Enclosure material | Polyester, Glass fibre reinforced |
| Silicone-free | No |
| Multiple conductor connection | 2 x 16 mm² |
| Multiple conductor connection AWG | 2 x AWG 6 |
| Finely stranded connection cross-section | 1 x 16 mm² ... 1 x 50 mm² |
| Finely stranded connection cross-section AWG | 1 x AWG 6 ... 1 x AWG 1/0 |
| Stranded connection cross-section | 1 x 16 mm² ... 1 x 50 mm² |
| Stranded connection cross-section AWG | 1 x AWG 6 ... 1 x AWG 1/0 |
| Width | 180 mm (7.09 in) |
| Height | 212 mm (8.36 in) |
| Length | 413 mm (16.27 in) |
| Impact strength (IEC 60079) | 7 J |
| Impact strength (IEC 62262) | IK10 |
| Colour code | Red |
| Coding (clock hour position) | 6 |
| Lockable in | in 0- and I-position |
| Series | SolConeX |
| Detailed number of poles | 3 P + PE |
| Weight | 7.8 kg (17.2 lb) |
Mounting and Installation
Connection: Screw terminal
Components and Accessories
Components
Cable entry note: Entry 1: Bottom left, Entry 2: Bottom right
| Entry | Model | Type | Metal entry possible |
|---|---|---|---|
| Entry 1 | 8290/3-M50 | Polyamide stopping plug | Yes |
| Entry 2 | 8290/3-M25 | Polyamide stopping plug | No |
Diagrams and Drawings
[Diagram: Clock hour position coding for the socket, with numbered positions from 1 to 12. Example shown is 6 h position.]
[Dimensional Drawings: Detailed drawings of the wall-mounting socket showing front, side, and top views. Key dimensions provided in millimeters [inches]: Overall width 180 [7.09], height 212 [8.36], depth ~413 [~16.27]. Mounting hole dimensions are also indicated.]
[Image: R. STAHL 8544/1-31L switch insert.]
Accessories
Auxiliary Contacts
- 2 NC (8080/1-3): 250 V AC/DC, Max. 6 A, for 1.5 to 2.5 mm² solid/finely stranded conductors. Switching function depends on installation slot (Left and right: Synchronising). Art. No. 168356.
- 1 NC + 1 NO (8080/1-1): 250 V AC/DC, Max. 6 A, for 1.5 to 2.5 mm² solid/finely stranded conductors. Switching function depends on installation slot (Left: Delayed ON, leading OFF; Right: Synchronising). Art. No. 168351.
- 2 NO (8080/1-4): 250 V AC/DC, Max. 6 A, for 1.5 to 2.5 mm² solid/finely stranded conductors. Switching function depends on installation slot (Left and right: Synchronising). Art. No. 168353.
Ex i cover: Ex i cover for auxiliary contacts for use in Ex i electrical circuits. Art. No. 168855.
Plastic cable gland:
- 8161/7-M25-1707, Ex e: Plastic, M25 x 1.5, cable outer diameter 7 to 17 mm. Lot size 50 pieces. Art. No. 239157.
- 8161/7-M50-3516, Ex e: Plastic, M50 x 1.5, cable outer diameter 16 to 35 mm. Lot size 4 pieces. Art. No. 239160.
Stopping plug: 8290/3-M25, Plastic, M25 x 1.5. Lot size 1 piece. Art. No. 143524.
Spare Parts
| Spare Part | Description | Art. No. |
|---|---|---|
| Auxiliary contact key | For removing installed auxiliary contacts | 201909 |
| Repair set for Series 8579 sockets | Repair set 8579 hinged cover, red | 275508 |
R. STAHL | Explosion protected Systems | Industrial Explosion Protection
