Fusible overtemperature protection and tripping devices

Fail-safe overtemperature protection of heater coils and tubular elements

Fusible overtemperature protection and tripping devices
Fail-safe overtemperature protection of heater coils and tubular elements

Schaltbau fusible overtemperature protection and tripping devices ensure fail-safe thermal cutout protection against overheating of electric air heaters as used in rail vehicles and stationary heating systems. The devices are a prerequisite for fire protection and operate totally independent of the heater controls.

  • Fail-safe overtemperature protection of heater coils and tubular elements
  • Tripping function independent of control voltage
  • Replacement fusible link necessary after tripping operation
  • Optional auxiliary contact for version ZH437
  • Applicable standards: IEC 60077, IEC 50124-1

Available series

ZH037 Exxx – Fusible linksZH037 Exxx – Fusible links

For use with the overtemperature protection devices and tripping devices

What can we do for you?*ZH037 Exxx – Fusible links
2076
ZH437 Exxx – Fusible linksZH437 Exxx – Fusible links

For use with the overtemperature protection devices and tripping devices

What can we do for you?*ZH437 Exxx – Fusible links
2077
ZH437 K VA – Fusible tripping devices made from stainless steel, standardZH437 K VA – Fusible tripping devices made from stainless steel, standard

3000 V nominal voltage, 4000 V rated insulation voltage

What can we do for you?*ZH437 K VA – Fusible tripping devices made from stainless steel, standard
2865
ZH437 K-H – Tripping device with auxiliary switch, standardZH437 K-H – Tripping device with auxiliary switch, standard

3000 V nominal voltage, 4000 V rated insulation voltage, snap-action switch S870

What can we do for you?*ZH437 K-H – Tripping device with auxiliary switch, standard
2068
ZH437 K-HK – Tripping device with auxiliary switch, shortZH437 K-HK – Tripping device with auxiliary switch, short

1800 V nominal voltage, 4000 V rated insulation voltage, snap-action switch S870

What can we do for you?*ZH437 K-HK – Tripping device with auxiliary switch, short
2079
ZH437 K – Tripping device, standardZH437 K – Tripping device, standard

3000 V nominal voltage, 4000 V rated insulation voltage

What can we do for you?*ZH437 K – Tripping device, standard
2081
ZH437 K-K – Tripping device, shortZH437 K-K – Tripping device, short

1800 V nominal voltage, 4000 V rated insulation voltage

What can we do for you?*ZH437 K-K – Tripping device, short
2083
ZH037 K – Tripping device, shortZH037 K – Tripping device, short

1500 V nominal voltage, 1800 V rated insulation voltage

What can we do for you?*ZH037 K – Tripping device, short
2087
ZH437 K-KG – Overtemperature protection device, shortZH437 K-KG – Overtemperature protection device, short

1800 V nominal voltage, 4000 V rated insulation voltage

What can we do for you?*ZH437 K-KG – Overtemperature protection device, short
2089
ZH437 – Overtemperature protection device, mediumZH437 – Overtemperature protection device, medium

1800 V nominal voltage, 4000 V rated insulation voltage

What can we do for you?*ZH437 – Overtemperature protection device, medium
2091

Media library

Brochure Electrics for Rolling StockBrochure Electrics for Rolling StockBrochure Electrics for Rolling Stock

Electric equipment and subsystems in passenger coaches, locomotives, multiple units, light rail vehicles, trams and buses

Do you have questions on this topic?Brochure Electrics for Rolling Stockmarketing@schaltbau.deMedia library
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Fusible overtemperature protection and tripping devices