201389 Wall Mounting Socket
Instruction Manual

WebCode 8579A
R. STAHL Series 8579/ 31 sockets for Zone 1/ 21 in a 4- and 5- pole version have full AC- 3 switching capacity up to 63 A. The high degree of protection IP66 guarantees the highest level of protection against the penetration of dust and water in any application position. Self-cleaning lamellar contacts provide optimum contact and the plugs can be inserted and removed in the zero position quickly and easily. The load disconnect switch, with a mechanical locking device and a handle that can be locked in the 0 or I position, is an additional safety feature.
- Reliable load disconnect switch with easily visible, lockable handle and switching position display
- An integrated auxiliary contact for control and signaling purposes can optionally be enhanced with pluggable, easily retrofittable Ex e or Ex I auxiliary contacts
- Wide temperature range for use
- High mechanical impact and shock resistance
- Perfect protection against the ingress of liquids and dust
- 3D data available to download from the website
Technical Data
| Explosion Protection | |
| Scope of validity | European Union (ATEX) IECEx |
| 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 | G 112 G Ex db eb IIC T6 … T5 Gb |
| ATEX dust certificate | PTB 01 ATEX 1150 |
| ATEX dust explosion protection | © 112 D Ex tb IIIC T60 °C / T75 °C Db |
| Certificates | ATEX (PTB), Brazil (ULB), IECEx (PTB), Korea (KGS), Taiwan (ITRI) |
| Explosion protection note | The product labels may vary. Series devices have certification according to ATEX and IECEx. |
| Electrical Data | |
| Rated operational voltage AC | 380 to 415 V AC |
| Rated operational current | max. 63 A |
| Electrical service life | > 2×10° switching cycles |
| Mechanical service life | > 2×10° switching cycles |
| Type of voltage | Low voltage |
Installation Equipment
Wall-mounting socket 63 A
| Electrical Data | |
| 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 | |
| Back-up fuse with thermal protection | 80 A gG |
| Back-up fuse without thermal protection | 63 A gG |
| Ambient Conditions | |
| Ambient temperature | -30 °C … +40 °C (T6) -30 °C … +55 °C (T5) |
| Ambient temperature | -22 °F … +104 °F (T60 °C) -22 °F … +131 °F (T75 °C) |
| Mechanical Data | |
| IP degree of protection (IEC 60529) | IP66 |
| IP degree of protection (IEC 60079) | IP66 |
| Enclosure material | Polyester, Glass fiber reinforced |
| Silicone-free | No |
| Multiple conductor connection | 2 x 16 mm² |
| Finely stranded connection cross-section | 1 x 16 mm² … 1 x 50 mm² |
| Connection cross-section AWG finely stranded | 1 x AWG 6 … 1 x AWG 1/ 0 |
| Width | 180 mm |
| Width in inches | 7.09 in |
| Height | 212 mm |
| Height, inches | 8.36 in |
| Length | 413 mm |
| Length, inches | 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 |
| The detailed number of poles | 3 P + PE |
| Weight | 7.8 kg |
| Weight | 17.2 lb |
| Mounting / Installation | |
| Connection | Screw terminal |
| Components | |
| Cable entry note | Entry 1: Lower left Entry 2: Lower right |
| Entry 1 model | 8161/7-M50-3516 |
| Entry 1 type | Polyamide cable gland |
| Entry 1 | M50 x 1.5 |
| Entry 1 terminal area | 16 – 35 mm |
| Entry 1 clamping range, inch | 0.63 – 1.38 in |
| Metal entry possible 1 | No |
| Entry 2 model | 8290/3-M25 |
| Entry 2 type | Polyamide stopping plug |
| Entry 2 | M25 x 1.5 |
| Metal entry possible 2 | No |
Technical Drawings – Subject to Alterations

Marking of connections
Front view of socket 3 P + PE
Dimensional Drawings (All Dimensions in mm [inches]) – Subject to Alterations

Accessories
| Auxiliary contact | Art. No. | |
| 2 NC contacts (8080/1-3) 250 V AC/DC max. 6 A 1.5 … 2.5 mm² solid / finely stranded The switching function of the auxiliary contact depends on the installation slot used. Left and right: synchronizing | 168356 | |
![]() | 1 NC contact + 1 NO contact (8080/ 1- 1) 250 V AC/DC max. 6 A 1.5 … 2.5 mm² solid / finely stranded The switching function of the auxiliary contact depends on the installation slot used. Left: Delayed (ON), leading (OFF) Right: synchronizing | 168351 |
| 2 NO contacts (8080/1-4) 250 V AC/DC max. 6 A 1.5 … 2.5 mm² solid / finely stranded The switching function of the auxiliary contact depends on the installation slot used. Left and right: synchronizing | 168353 |
| Auxiliary contact key | Art. No. | |
![]() | for removing the mounted auxiliary contact | 201909 |
| Cable gland made of plastic | Art. No. | |
![]() | 8161/7-M25-1707, Ex e Plastic, M25 x 1.5, cable outer diameter 7 to 17 mm Lot size 50 pieces | 239157 |
| 8161/7-M50-3516, Ex e Plastic, M50 x 1.5, cable outer diameter 16 to 35 mm Batch size 4 pieces | 239160 |
| Ex I cover | Art. No. | |
![]() | Ex I cover auxiliary contacts for use in Ex I circuits | 168855 |
| Stopping plug | Art. No. | |
![]() | 8290/3-M25 Plastic, M25 x 1.5 Lot size 1 piece | 143524 |
| Switch insert | Art. No. | |
![]() | 8544/1-31L | 167239 |
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.
R. STAHL Schaltgeräte GmbH
Am Bahnhof 30
74638 WALDENBURG
Tel. +49 7942 943 1700
+49 7942 943 1777
Email: [email protected]
r-stahl.com
























