EATON
BZM1 | BZM2 | BZM3
- ISO 9001
- CE, CCC and RoHS 3.0 compliant
Introducing the Eaton BZM series: compact, reliable circuit breakers (BZM1 up to 125 A, BZM2 up to 250 A, BZM3 up to 400 A) designed for lower LV applications, offering factory-set tripping, easy handling, and a wide range of accessories. Protect your electrical systems with Eaton’s proven quality, innovative design, and compliance with global standards.
- BZM1: Up to 125 A
- BZM2: Up to 250 A
- BZM3: Up to 400 A
- Rated current range: 10–630 A
- Breaking capacity: D15KA, F18KA, B25KA, C36KA, N50KA
Discover the Eaton BZM Series
Compact Design
The BZM1, BZM2, and BZM3 circuit breakers are among the slimmest in their class, optimizing valuable distribution space. Perfect for energy sub-distribution or incoming power protection in residential and functional buildings, they deliver unmatched space efficiency.
Effortless Installation
With factory-set thermal and magnetic tripping values, the BZM series ensures quick and easy handling. Designed for fast installation, these circuit breakers streamline your projects, saving time without compromising reliability.
Trusted Safety
Eaton’s BZM series, covering 16 to 400 A, sets the standard for low-voltage power distribution. Offering robust protection against short-circuits and overloads, it safeguards people and assets with world-class quality and reliability.
Built to Global Standards
The BZM series complies with IEC/EN 60947-2 and meets pollution degree III (IEC/EN 60947), ensuring top-tier material and performance quality. Environmentally conscious, these circuit breakers adhere to RoHS directives and are highly recyclable.
Combining cutting-edge technology with Eaton’s signature sleek design, the BZM series is as visually appealing as it is technically advanced, making it the ideal choice for modern applications.
BZM1: Advanced Technology, Built to Last
The BZM1 delivers robust protection with rated currents up to 125 A and a breaking capacity of up to 36 kA. With a slim 25 mm per pole and lightweight design, it’s available in 1, 2, 3, or 4-pole configurations. Factory-set thermal and magnetic tripping values ensure quick setup, while its 10,000 mechanical operating cycles guarantee an exceptional lifespan. The BZM1 also features an IP10 degree of protection with its terminal cover.
Versatile Mounting Options
Mount the BZM1 upside-down or horizontally—your choice. Regardless of position or power supply side, it consistently delivers full protective functionality for maximum flexibility.
Seamless Cable Fixing
The BZM1 includes proven cable lug with M6 screws and box terminal technology (BZM1…-BT), enabling quick and secure mounting for efficient installations.
Tailored Solutions
From remote tripping to signaling switching status or undervoltage release for critical applications, the BZM1 adapts effortlessly. A wide range of accessories, including an optional rotary handle for direct mounting or door coupling, ensures it meets both standard and specialized needs.
Key Features
- Rated Current: 16 A to 125 A
- Breaking Capacity: 15, 18, 25, 36 kA
- Cable Fixing: Cable lug M6 or Box Terminal (BZM1…-BT)
- Available Poles: 1, 2, 3, 4
- Rated Voltage: Up to 400/415 V, 50/60 Hz
- 3-Position Lever: Off - Trip - ON
- Electrical Supply: Line or Load-Side
BZM2: Robust Protection, Compact Power
The BZM2 excels in monitoring rated currents from 125 A to 250 A with a breaking capacity of up to 36 kA. Its robust design and compact 3-pole format (105 x 91.5 x 165 mm) deliver powerful protection, boasting a lifespan of 8,000 mechanical operating cycles for lasting reliability.
Flexible Mounting
Choose standard, horizontal, or upside-down mounting for the BZM2. Regardless of the position or incoming power supply side, it ensures consistent and dependable performance.
Reliable Cable Connection
The BZM2 features a conventional cable lug with M8 screws, providing a secure and industry-standard connection for higher rated currents.
Smart Accessories
Enhance functionality with Eaton’s range of accessories, including auxiliary contacts, shunt trip releases, undervoltage releases, interlock devices, and terminal covers. The BZM2 is designed for reliability and ease in demanding applications.
Key Features
- Rated Current: 125 A to 250 A
- Breaking Capacity: 25, 36 kA
- Cable Fixing: Cable lug M8
- Available Poles: 3
- Rated Voltage: 400/415 V, 50/60 Hz
- 3-Position Lever: Off - Trip - ON
- Electrical Supply: Line or Load-Side
BZM3: Powerhouse for High-Amp Applications
The BZM3 is the most powerful in Eaton’s BZM range, handling rated currents from 250 A to 400 A with a maximum breaking capacity of 50 kA at 415 VAC and 36 kA at 440 VAC. Its compact design (140 x 149 x 255 mm) makes it the ideal solution for high-amp applications without sacrificing space.
Easy and Flexible Installation
Like the BZM1 and BZM2, the BZM3 supports standard, horizontal, or upside-down mounting. Choose your preferred feeding direction for seamless integration into any setup.
Simplified Cable Fixing
Connect cables or busbars effortlessly with the standard cable lug and M10 screw or opt for the tunnel terminal accessory, ensuring quick and secure installations.
Comprehensive Accessories
The BZM3 offers a robust accessory range, including shunt trip releases, undervoltage releases, auxiliary contacts, terminal covers, spreaders, tunnel terminals, phase barriers, and a rear connection kit, tailoring it to diverse application needs.
Key Features
- Rated Current: 250 A to 400 A
- Breaking Capacity: 25, 36, 50 kA at 415 VAC; 36 kA at 440 VAC
- Cable Fixing: Cable lug M10 or Tunnel Terminal (accessory)
- Rated Voltage: 440 V, 50/60 Hz
- 3-Position Lever: Off - Trip - ON
- Electrical Supply: Line or Load-Side
EATON
Download Eaton's BZM Circuit Breaker Brochure for compact, reliable protection solutions from 16 to 400 A.