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E-T-A Circuit Breakers 201 Single-Pole Thermal-Magnetic Circuit Breakers

E-T-A Circuit Breakers 201 Single-Pole Thermal-Magnetic Circuit Breakers are designed for precision overcurrent protection in demanding industrial environments. The 201 features a tease-free, trip-free, snap-action mechanism housed in a compact, narrow-profile design with recessed terminals and standard DIN rail mounting. Designed for intuitive use, this E-T-A device features a two-button operation: a black push button for switching on and resetting, and a separate red manual release button for safe, manual disconnection. By being fully resettable, the 201 provides significantly higher system availability than conventional blade fuses, following a trip due to overcurrent or a short circuit. This versatile circuit breaker supports a wide current rating range from 0.05A to 16A and carries worldwide approvals, including VDE, UL 1077, and CSA. With voltage ratings up to 250VAC and 80VDC, the 201 is an ideal solution for industrial automation and process control applications.

Features

  • Maximum uptime - The fully resettable design eliminates the need for fuse replacements, allowing for immediate power restoration after a fault.
  • Precision dual protection - Thermal-magnetic technology provides reliable, high-performance protection against sustained overloads and sudden short circuits.
  • Fail-safe safety - A tease-free, trip-free mechanism ensures the device will disconnect during a fault even if the reset button is held down.
  • Space efficiency - The narrow profile housing allows for high-density installations, saving valuable space in control cabinets.
  • Global compatibility - Worldwide approvals, including VDE, UL 1077, and CSA, simplify international compliance and equipment export.
  • Rugged reliability - The 201 is engineered to withstand vibration, shock, and corrosion, ensuring a long service life in demanding industrial environments.
  • Tailored ratings - A wide selection of current ratings from 0.05A to 16A provides exact protection for specific application needs.

Applications

  • Process control systems
  • Instrumentation
  • Rail vehicles

Specifications

  • Voltage ratings
    • 240VAC (50Hz/60Hz)
    • 65VDC
    • 250VAC and 80VDC (UL/CSA)
  • 0.05A to 16A current rating
  • Single pole
  • Interrupting capacity (Icn)
    • 0.05A to 0.8A (self-limiting)
    • 1A to 2A (200A)
    • 2.5A to 16A (400A)
  • 1000A at 250VAC or 80VDC UL 1077 interrupting capacity
  • 5000 operations typical life at 1x rated current (inductive) or 2x rated current (resistive)
  • -30°C to +60°C operating temperature range
  • Degree of protection
    • IP40 in the operating area
    • IP20 in the terminal area
  • Standard symmetrical rail EN 50022-35x7.5 mounting method
  • Screw terminal design with a 0.8Nm maximum tightening torque
  • Tested for vibration (5 g), shock (25 g), corrosion (96 hours salt mist), and humidity (240 hours at 95% RH).
  • 60g approximate weight
  • VDE (IEC/EN 60934), UL 1077, and CSA approvals

Installation Drawing

Mechanical Drawing - E-T-A Circuit Breakers 201 Single-Pole Thermal-Magnetic Circuit Breakers

Internal Connection Diagram

Schematic - E-T-A Circuit Breakers 201 Single-Pole Thermal-Magnetic Circuit Breakers

Dimensions

Mechanical Drawing - E-T-A Circuit Breakers 201 Single-Pole Thermal-Magnetic Circuit Breakers

Additional Resources

Accessories

Publié le: 2026-04-15 | Mis à jour le: 2026-05-18