ABB ZEASM 500V Circuit Breaker, Shunt Trip | AmpState

Meet the ABB ZEASM 500V Circuit Breaker with Shunt Trip — a purpose-built protection solution engineered for reliable isolation and rapid response in modern electrical distribution systems.

Designed for panelboards, load centers, and general electrical distribution, ZEASM is ideal for replacement projects where you need to keep the BOM tightly aligned to the original ABB part number. This ensures compatibility, minimizes downtime, and simplifies stocking by matching your existing infrastructure.

• Shunt Trip capability: an external control option that enables immediate remote tripping, enhancing safety in emergency shutdown scenarios or integrated safety systems.
• 500V voltage rating: suitable for medium- and high-voltage distribution environments, delivering reliable interruption during faults or overloads.
• Part number ZEASM: ensures your replacement matches the original specification and installation footprint.
• Availability through AmpState: a trusted supplier for replacement parts, with support to confirm fit and compatibility.

Why ZEASM stands out for electrical protection

In practical terms, ZEASM helps protect critical infrastructure by preventing nuisance trips and enabling fast, remote control of the circuit. The shunt trip feature adds a safety layer for facilities with remote monitoring and control systems, such as data centers, manufacturing environments, and commercial buildings.

• Use cases:
  • Remote shutdown scenarios where an external command is needed to trip the breaker quickly
  • Spare stock for BOM-aligned replacements to minimize project downtime
  • Panelboard and load center upgrades where the original ZEASM part is specified

If you need help matching a part number or confirming compatibility, message AmpState and we’ll help you confirm fit.

Specifications at a glance

• Manufacturer: ABB
• Part Number: ZEASM
• Product Type: Circuit Breaker
• Voltage: 500V
• Shunt Trip: Yes
• Availability: AmpState