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E-T-A Circuit Breakers Rex12-T Electronic Circuit Breakers

E-T-A Circuit Breakers Rex12-T Electronic Circuit Breakers are compact, flexible, all-in-one solutions with several perfectly matched components that provide overcurrent protection for 24VDC systems. The circuit breakers pair with the EM12-T supply module for side-by-side mounting and require no special accessories to connect. This connection technology, plus a press release button, reduces installation time by 50% and offers added flexibility for future system upgrades. The push-in circuit breakers are available in single- or double-channel configurations, each 12.5mm wide. The Rex12-T circuit breakers feature a 24VDC voltage rating and include models with current ratings from 1A to 10A. The REX12-T electronic circuit protection solution is ideal for machine and panel builders and features UL 2367, UL508, and UL 60947 approvals.

Features

  • EM12-T01-001-DC24V-40A power supply required to power the REX circuit breakers
  • Combination of supply modules, overcurrent protection, and power distribution
  • Connection via push-in terminals including orange press release buttons
  • Single and double channel selective load protection by means of electronic trip curve
  • No accessories are required for connecting the components
  • Fixed and adjustable current ratings from 1A to 10A
  • Saves space with a width per channel of 12.5mm (1-channel) or 6.25mm (2-channel)
  • Integral fail-safe element, adjusted to the maximum current rating
  • Switching capacitive loads up to 20,000µF
  • Manual ON/OFF/reset momentary switch
  • Clear status indication by means of LED and signal contact Si
  • Saves time through innovative and flexible mounting and connection technology
  • Cost-effective as no further accessories are required
  • Provides design flexibility through the ease of mounting, disassembly, and modular design
  • RoHS and REACH compliant

Specifications

  • 1A to 10A current rating range
  • 24VDC rating
  • ≤10ms power failure buffering time
  • Pollution degree 2
  • 0.5kV insulation co-ordination
  • 30VDC maximum load circuit dielectric strength
  • <1mA typical leakage current (load circuit in OFF condition)
  • Temperature ranges
    • -25°C to +60°C operating
    • -40°C to +70°C storage
    • +5°C to +60°C mounting
  • Degree of protection
    • IP30 for the operating area
    • IP20 for the terminal area

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Additional Resources

Published: 2017-08-31 | Updated: 2022-05-25