WZA/S - Emergency Stop Switch
Emergency Stop Switch type WZA was designed to be used in safety circuits of mining machines such as for example belt conveyors, lifts, etc. In case of emergency the serial safety circuit can be broken by the user by pulling the cord or pressing the button. Each switch has a LED status light (contracted / not contracted ). The manufacturer provides the device with or without the junction chamber - enabling possibility to connect to loudspeaking device. Additional built-in contacts enable sending a remote identification signal of the switch via a digital data network. Device is made as intrinsically safe, allowing their use in mining in areas with danger of explosion of methane and / or coal dust.
Technical data
Certificate Number functional Safety | OBAC/08/MD/SIL/325 |
ATEX certificate number | KDB 04ATEX270 |
Casing protection degree | Ip54 |
Device Group | I |
Device category | M1 |
Casing type | Ex ia I |
Supply voltage | U = 5 ÷ 15 VDC |
Power Consumption | I = 10mA N |
Total number of contacts | 3 changeover contacts |
Maximum supply voltage | 42 V for circuits ia lub Ib |
Width x Height x Depth | 330 x 218 x 98 mm (WZA/1) |
330 x 268 x 98 mm (WZA/2) | |
Number of outlets / cable connectors | 2 (WZA/1), 4 (WZA/2) |
Working temperature range | -20ºC ÷ 40ºC |
Weight | 3 kg |
Gallery
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