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Schmersal WKTE521 Command and Signalling Devices
The Schmersal WKTE521 Command and Signalling Devices offers a 30.5 mm mounting diameter, 10 mmthickness of the front panel, maximum, IP65IP67 degree of protection, 400 V rated insulation voltage Ui. Manufactured by Schmersal under the Schmersal Command and Signalling Devices. category, this model belongs to the Schmersal WK Series.
| Brand | Schmersal |
| Product Type | Command and Signalling Devices |
| Model Number | WKTE521 |
Schmersal WKTE521 Command and Signalling Devices – Technical Specifications
| Specification | Value |
|---|---|
| Installation conditions (mechanical) | arbitrarily |
| Material of the front ring | Aluminium anodised |
| Material of the bellows | Rubber |
| Material thickness of the sealing bellows | 1 mm |
| Colour of the front ring | Silver |
| Colour of the bellows | Black |
| Gross weight | 270 g |
| Return to zero position | Yes |
| External applications | Yes |
| Galvanically separated contact bridges | Yes |
| Locking sleeve | Yes |
| Probing possible | Yes |
| Number of auxiliary contacts | 8 |
| Number of directions | 4 |
| Number of normally open (NO) per direction | 2 |
| Number of switch positions | 4 |
| Number of switching stages | 4 |
| Latching position | leftrightbottomabove |
| Mechanical life, minimum | 1,000,000 Operations |
| Actuating force, approx. | 11 N |
| Mounting | mounting flange |
| Termination | Screw terminals |
| Cable section, minimum | 0.5 mm² |
| Cable section, maximum | 2.5 mm² |
| Mounting depth | 91 mm |
| Length of the actuator | 90 mm |
| Mounting diameter | 30.5 mm |
| Thickness, of the front panel, minimum | 1.5 mm |
| Thickness of the front panel, maximum | 10 mm |
| Diameter for the Installation to EN 60947 1 | 30.5 + 0.5 mm |
| Spacing | 80 x 80 mm |
| Degree of protection | IP65IP67 |
| Ambient temperature | 25 ... +80 °C |
| Resistance to vibrations | 10 … 200 Hz, with 20 g |
| Restistance to shock | 110 g / 4 ms 30 g / 18 ms |
| Rated insulation voltage Ui | 400 V |
| Rated impulse withstand voltage Uimp | 4 kV |
| Degree of pollution | 3 |
| Thermal test current | 10:00 AM |
| Utilisation category AC 15 | 8:00 AM |
| Utilisation category DC 13 | 5:00 AM |
| Switching element | 2 NO contacts / 2 NO contacts / 2 NO contacts / 2 NO contacts |
| Switching principle | Slow action |
