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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Cam-operated switching elements Fusible overtemperature protection and tripping devices | | | | | | | | | | Cam-operated switching elementsof Schaltbauarecommonlyoperated by Schaltbau fusibleovertemperatureprotection andtripping devicesensure cam discs, so both the operating position and the operating sequence can fail-safe thermal cutout protection against overheating ofelectric air be determined arbitrarily. heaters as used in rail vehicles and stationary heating systems. There are different styles for AC and DC applications. Cam-operated swit- The devices are a prerequisite for fire protection and operate totally inde- ching elements are typically used as auxiliary switches ofcontactors, and as pendent of the heater controls, constituents in camshaft gear, toggle switch assemblies, key switches, and applications with special requirements as to switching capacity. | | | | | | | | | | Features | | | | | | | | | | Suitable for DC and AC applications Current carrying capacity upto60A Solidcontacts,rugged design Longdesignlife Easymountingandreplacement Electromagneticand permanent-magnetic blowoutavailable | | Reliable overtemperature protection of HV heating registers: • Series ZH037, ZH437, ZH937 for electric air heaters • SeriesZH003forwatertanks Function independent of control voltage and electronic regulation devices Fusible link is an expendable replacement component Versions with auxiliary switch available | | | | | | | | | | | | | | ( Catalogue D30.en ) | | C Catalogue F196.en ) | | | | | | | | | | Specifications Series Conv. thermal current l,h #/Contact configuration Rated insulation voltage U, Pollution degree Overvoltage category Electrical switching rate Mechanical endurance Temperaturerange Standards | | | | | | | | | | | | | | | | | S005 | S007 | S008 | I ZH037 | ZH437 | ZH937 | | | | | | 60A | | 1,800V,3,000V | 3,000 V | | | | | | | DC,AC | DC,AC | DC,AC | | | | | 400 V | | | 4,000 V | 4,000 V | | | | | PD3 | | | PD3 | | | | | | OV3 | | | OV3 | | | | | | | | | | | | | | | | | | series NominalvoltageUN Kindofvoltage | | | | | | | | | | Pollution degree Overvoltage category Triptemperature Mechanical endurance | | | | | | | | | | 10... 60 op. cycles/min (depending on load)
| | | | | | | | | | >3,000,000 cycles | | >3,000,000 cycles | | | | | | cycles | | | | | | | | | | | | | | IEC60077,VDE0660 | | | | | | IEC60077,VDE0660 | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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