Product Overview
Eaton’s IZM6 series air circuit breakers are a high-performance medium-voltage protection platform covering three frame sizes—IZM61 (up to 1600A), IZM65 (up to 2500A), and IZM67 (up to 4000A)—with switching capacities from 55kA to 85kA. Available in withdrawable, fixed, and manually operated configurations, the IZM6 is equipped with next-generation PT electronic trip units (PT10/PT20/PT25) offering LSI/LSIG protection, zone selective interlocking (ZSI), and advanced metering. Compliant with IEC/EN 60947 and certified CCC/CB/RoHS, the series delivers intelligent, reliable protection for demanding power distribution applications.
Product Features
● Three Frame Sizes：IZM61 (1600A), IZM65 (2500A), IZM67 (4000A) covering a wide current range in a single platform.
● High Breaking Capacity：Switching capacities of 55kA (B), 66kA (N), and 85kA (S) at 690V AC, with 12kV impulse withstand voltage.
● PT Electronic Trip Units：PT10 (LCD + rotary), PT20 (rotary, I²t/I⁴t), PT25 (LCD, power metering); all support LSI + optional LSIG protection.
● Zone Selective Interlocking (ZSI)：Achieved by simple cable connection between breakers without additional modules, minimizing fault clearance time.
● Making Current Release (MCR)：Prevents closing and latching on a faulted circuit, enhancing operational safety.
● Ground Fault Sensing：Three modes (Residual, Source Ground, Zero Sequence) for flexible ground fault detection.
● Unbalance Protection：Detects partial or complete phase current loss to protect downstream equipment.
● Rich Accessory Ecosystem：Motor operators, shunt/closing releases, under/over-voltage releases, mechanical interlocks, interphase partitions, auxiliary contacts, operation counters, and more.
● Multiple Configurations：Withdrawable (with cassette), fixed, and manually operated versions to suit diverse installation needs.
Product Advantages
● Intelligent Protection：PT trip units with LCD display and rotary switch options provide precise, adjustable protection settings and real-time status monitoring.
● Simplified Coordination：ZSI enables selective tripping through simple wiring, reducing unnecessary upstream outages and improving system reliability.
● Enhanced Safety：MCR function prevents fault-circuit energization; combined with comprehensive ground fault and unbalance protection, it safeguards personnel and equipment.
● Flexible Integration：Interchangeable trip units and extensive accessory options allow customization for specific application requirements without changing the base device.
● Easy Maintenance：Withdrawable design enables hot-swap replacement; PTM testing tool simplifies commissioning and reduces maintenance downtime.
● Global Compliance：IEC/EN 60947 standard, CCC/CB/RoHS certified, ensuring worldwide deployability across diverse regulatory markets.
Usage Scenarios
● Industrial Power Distribution：Main and sub-distribution protection in manufacturing plants, processing facilities, and heavy industry.
● Commercial Buildings & Data Centers：High-reliability circuit protection for critical infrastructure requiring selective coordination and smart monitoring.
● Infrastructure Projects：Transportation hubs, airports, and public utilities where arc flash safety and system reliability are paramount.
● Renewable Energy & EV Charging：Robust protection in variable climatic conditions with wide operating ranges and intelligent monitoring capabilities.
● Harsh Industrial Environments：Applications demanding high impulse withstand (12kV) and rugged construction for demanding electrical distribution needs.
