Transit & School Bus

Reliable components and intelligent systems for the use in city and school buses

Circuit protection and relays for reliable and efficient on-board electrical systems

Uptime, reliability and vehicle safety requirements are constantly increasing in transit and school buses. At the same time, electrification of drive train systems requirements are continuing to evolve. Electric mobility, new fuel efficiency standards and bus connectivity & digitization continue to drive innovation.

Your passengers rely on you to arrive on time

E-T-A's resettable automotive circuit breakers replace ATO® and MINI® blade-type fuses, allowing technicians to reduce the amount of time for trouble-shooting and avoid unnecessary vehicle downtimes.

Industry Leader in Transit and School bus Power Protection

E-T-A is the industry leader in power management design for both School and Transit bus. E-T-A innovations include standard Din-Rail, socket mount and smart PC based designs. We are the experts in power management and protection for the bus industry. Virtually all of the OEM's work with E-T-A for components and custom power management systems.

Compact, robust and energy-efficient

Limited installation space, reliability expectations and minimum energy requirements determine our customers’ designs. Our electro-mechanical power relays were designed specifically with this in mind and are tested in accordance with ISO 16750.

Featured Products:


Miniaturised thermal automotive circuit breaker
with colour-coded manual release

Typ 1610-21 von E-T-A: Einpoliger, thermischer Kfz-Sicherungsautomat in sehr schmaler Bauform.


Automotive thermal circuit breaker,
colour-coded housing,
standard fuseblock mounting

Typ 1620 von E-T-A: Einpoliger, thermischer Sicherungsautomat in Mini-Bauform, der speziell für den Kfz-Bereich geeignet ist.


Single pole, thermal miniaturised circuit breaker designed for automotive applications


Single pole, thermal miniaturised circuit breaker designed for automotive applications

Typ 127 von E-T-A: Einpoliger, thermischer Schutzschalter mit verschiedenen Befestigungsarten.


Thermal circuit breaker
with manual release button,
plug-in or snap in panel mounting

Typ MPR10 von E-T-A: Für das Schalten von Hochstromlasten und Trennen der Batterie vom Bordnetzsystem entwickelt worden.


Mechanical Power Relays

Typ EPR10 von E-T-A: Das elektronisches Power Relais EPR10 ist ein Halbleiterrelais für hohe Dauerströme.


The electronic power relay for high continuous currents

Typ ESR10 Micro 10 A / 17 A / 30 A von E-T-A: Halbleiterrelais für DC 12 V bzw. DC 24 V Fahrzeuganwendungen.

ESR10 Micro 10 A / 17 A / 30 A

Electronic Standard Relay ESR10 Micro

Typ ETR10 von E-T-A: Beinhaltet drei Hauptfunktionen: Zeitfunktionen, Relaisfunktion und Sicherungsfunktion.


ETR10 the Electronic Timer Relay

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