No products
Product successfully added to your shopping cart
Viewed products
-
PTDA 1,5/ 3-3,5...
PCB terminal block
-
7ML5728-3CB11-4EB0...
SITRANS LPS200 Switch. Rotary vane...
-
52010415 LAPP...
SKINDICHT SHVE PG 9/9/6/3,6
-
2056 28 FT 1160281 OBO...
Clamp clip , 22-28mm, Hot-dip...
-
57340 MURRELEKTRONIK...
CUBE20S DIGITAL OUTPUT MODULE DO4
-
DR-60-12 MEANWELL...
AC-DC Industrial DIN rail power...
Phase separation plate for power circuit breaker
Phase separation plates for power circuit breakers, also known as arc chute barriers or interphase barriers, are critical insulating components designed to isolate the poles (typically 3P or 4P) in molded case circuit breakers (MCCBs) and air circuit breakers (ACBs). These plates prevent phase-to-phase arcing and flashover during high-energy fau...
Phase separation plates for power circuit breakers, also known as arc chute barriers or interphase barriers, are critical insulating components designed to isolate the poles (typically 3P or 4P) in molded case circuit breakers (MCCBs) and air circuit breakers (ACBs). These plates prevent phase-to-phase arcing and flashover during high-energy fault interruptions, ensuring safe operation at rated voltages up to 690V AC and beyond. Constructed from high-grade thermoset materials like melamine or glass-reinforced polyester, they offer excellent dielectric strength, thermal resistance, and arc tracking resistance. They are essential for maintaining the short-circuit breaking capacity (Icu/Ics) of the breaker by containing the ionized gases within the arc chamber.
These plates are predominantly used in low-voltage switchgear and controlgear assemblies, including main distribution boards (MDBs), motor control centers (MCCs), and power factor correction panels. They are also critical in industrial automation environments where circuit breakers protect motors, transformers, and variable frequency drives (VFDs). In commercial buildings, they ensure compliance with IEC 61439 standards for arc fault containment in power distribution systems.
Key subcategories include phase barriers for specific MCCB series like ABB SACE Tmax, Schneider Compact NSX, and Siemens Sentron 3VL. Common article codes follow patterns such as "1SDA054668R1" for ABB or "LV429387" for Schneider, often indicating the breaker frame size and number of poles. These are not accessories but integral parts for retrofitting or replacing damaged barriers in existing installations.
We offer express worldwide shipping and specialized engineering support to help you select the correct phase separation plate for your circuit breaker model. Our engineers provide technical documentation and real-time pricing to ensure seamless integration into your power system.
All ratings we receive from the items we offer are real and verified. A small gesture, but a lot of value. That's why we thank you for that minute you invest in leaving us your opinion and qualification about the products, because it helps us to continue improving and to offer you a service of even higher quality.