ABB ST200M Miniature Circuit Breakers

ABB ST200M Miniature Circuit Breakers provide supplementary protection according to UL 1077 of up to 10kA at 480Y/277VAC and 125VDC. These devices are ideal for multiple applications and markets and feature an updated switching mechanism and assembly for increased triggering reliability, even under tough conditions. The robust thermoplastic housing material includes durable laser-printed product information for easy identification, and the information remains visible after installation. The contact design uses trip-free snap-action mechanism for improved arc movement and safe, optimized switching. The ST200M series provides easy and safe handling and a profile that matches other modular DIN-rail components. ABB ST200M Miniature Circuit Breakers are halogen free and use materials that comply with EU (RoHS, REACH) standards for sustainability.

Features

  • Suitable for multiple applications and markets
  • Visible durability
    • Robust thermoplastic housing material for better protection against external influences
    • Durable laser-printed product information for easy identification
    • Most important product information visible even when installed
  • Terminals
    • Extended size with insulation for IP20 protection
    • Pressure plate for improved conductor connection
    • Easier to handle, safer to use
  • Switching mechanism offers updated design and assembly to increase triggering reliability, including in tough conditions
  • Contact design with trip-free snap-action mechanism for improved arc movement and safe, optimized switching
  • Tripping device offers optimized arc extinguishing system for improved safety
  • Functional continuity
    • Compatible with current ABB UL 1077 accessories
    • Profile matches other modular DIN-rail components
  • Short-circuit current rating (SC) U2 enables continuous high-level short-circuit protection
  • Clear faults in less than half a cycle, making them current limiting
  • Units inspected 3x before leaving ABB facilities
  • Fully compatible with System pro M compact® accessories
  • Reduction in SKUs by replacing 2 existing product lines

Specifications

  • 1 to 4 poles
  • Up to 10kA at 480Y/277VAC and 125VDC
  • Increased reference temperature of +40°C for reduced derating in ICP applications
  • DC rated for 60V single pole, 125V multi-pole
  • 5 trip curves with extended range of ampacities
  • Clear contact position indication in red/green ("real CPI")
  • Patented twin terminal for wiring up to 35mm2 with captive screws
  • Field wiring available for most types
  • Global markings, approvals according to UL, CSA, and IEC
  • Certified for AC and DC use according to UL 1077 and CSA 22.2 No. 235
  • Complies with EU (RoHS, REACH) standards, halogen free

Product Overview

Infographic - ABB ST200M Miniature Circuit Breakers

Dimensions

Mechanical Drawing - ABB ST200M Miniature Circuit Breakers
Publicado: 2025-08-22 | Actualizado: 2025-12-11