OVERVIEW

Official designation: E-T-A ESS20-003-DC24V-6A (ESS20 Series, Electronic Circuit Breaker)

Role/Application: A single-pole electronic circuit breaker providing selective 24V DC overcurrent protection for loads in industrial automation systems, featuring active current limitation and physical isolation.

KEY SPECS SUMMARY

Power: DC 24 V (18-32 V), 6 A rated current

Interfaces / Ports: Blade terminals 6.3 mm, Plug-in mounting

Indicators: Bicolour LED (Green: ON, Orange: Overload/Short)

Operating Temp: 0 degrees C to plus 50 degrees C

Platform / Compatibility: Plug-in module for Module 17plus or SVSxx systems

Limit: Short-circuit current typically 1.8 x IN, Max load 6 A at 40 degrees C

Lifecycle: Obsolete, replacement is ESS30-S003-DC24V-6A

FREQUENTLY ASKED QUESTIONS

Technical Specifications:

Q: What is the typical voltage drop across the ESS20-003-DC24V-6A at full load?

A: The typical voltage drop at a 6 A load is 260 mV (Power-MOSFET output).

Wiring & Installation:

Q: What E-T-A power distribution systems are compatible with the ESS20-003?

A: The unit plugs into E-T-A power distribution modules like the Module 17plus or SVSxx.

Troubleshooting & Compatibility:

Q: How does the ESS20 provide physical isolation in the event of a persistent fault?

A: Physical isolation is achieved by the integral thermal circuit breaker tripping, moving the push-button to the OFF position.

Replacement & Upgrades:

Q: What is the recommended successor model for the obsolete ESS20-003-DC24V-6A?

A: The recommended successor model is the E-T-A ESS30-S003-DC24V-6A electronic circuit breaker.