Siemens CQD270 is a 70A, 480V, 2-pole molded-case circuit breaker crafted to safeguard branch circuits within panelboards and loadcenters. Designed for reliable overcurrent and short‑circuit protection, this unit provides a compact, space‑saving solution that integrates seamlessly with matching OEM panels in a wide range of commercial and light industrial environments. - Compact molded-case design: minimizes footprint in control panels and distribution boards, helping you maximize usable panel space without sacrificing protection.
- Thermal-magnetic trip unit: combines temperature-based overload sensing with fast magnetic trip action for stable, repeatable protection against both sustained overloads and sudden short circuits.
- 2-pole configuration: protects both conductors in two‑pole circuits, ensuring synchronized disconnection and safer power distribution in higher‑voltage applications up to 480V.
- OEM panel compatibility: engineered to pair with Siemens OEM loadcenters and panelboards for reliable fit, electrical contact, and easy installation.
- Versatile for various settings: suitable for residential, commercial, and light industrial electrical distribution, making it a practical choice for a broad spectrum of projects—from office renovations to equipment rooms and light manufacturing racks. Technical specifications at a glance:
- Manufacturer: Siemens
- Part Number: CQD270
- Type: Thermal-magnetic molded case circuit breaker
- Amperage Rating: 70 A
- Voltage Rating: 480 V
- Number of Poles: 2
- Application: Branch circuit overcurrent and short-circuit protection Ideal use scenarios:
- In commercial office buildings, where compact breakers free up panel space while providing reliable protection for lighting and power circuits.
- In industrial environments with 480V distribution needs, where dependable trip performance minimizes downtime from faults.
- During panel retrofits or new installs that require precise compatibility with existing Siemens panelboards for a clean, compliant electrical system. Why choose the CQD270:
- It delivers robust, predictable protection with a design focused on efficiency and reliability in demanding electrical environments.
- By pairing with matching Siemens panels, you reduce compatibility risk and simplify future maintenance or upgrades.
- The 70 A rating and 480V capability cover a broad range of circuits, balancing protection with operational flexibility. With the Siemens CQD270, you get a purpose-built solution that protects your electrical distribution efficiently, safely, and in a way that aligns with your existing Siemens panel ecosystem.