BQD125 - 25Amp Circuit Breaker

BQD125 - 25Amp Circuit Breaker

When dependable circuit protection is essential, the Siemens BQD125 circuit breaker delivers the performance needed to keep electrical systems operating safely and efficiently. Designed for commercial and industrial applications, this 25-amp, single-pole molded case circuit breaker helps protect wiring, equipment, and connected loads from potentially damaging overloads and short circuits before they become costly problems.

Built as part of Siemens' trusted BQD product line, the BQD125 is well suited for panelboard installations where space, reliability, and ease of maintenance are important. Its compact molded case design allows for efficient use of panel space, while its 277VAC rating makes it an excellent choice for commercial lighting systems, branch circuits, control panels, and other low-voltage power distribution applications. With a high interrupting capacity of 14 kAIC, this breaker is designed to safely interrupt fault currents and help minimize damage to electrical equipment when faults occur.

Whether you're upgrading existing electrical infrastructure, replacing a breaker, or installing new distribution equipment, the Siemens BQD125 offers dependable protection backed by one of the most recognized names in electrical power distribution.

Key Features and Benefits

• 25 Amp Continuous Current Rating: Provides reliable branch circuit protection for electrical systems operating within a 25-amp load requirement.
• Single-Pole Configuration: Designed specifically for 277VAC electrical systems commonly found in commercial and industrial applications.
• Thermal Magnetic Trip Unit: Protects against both overload conditions and short circuits for dependable electrical system protection.
• 14 kAIC Interrupting Capacity: Helps safely clear fault conditions and minimize potential damage to electrical equipment during short-circuit events.
• Compact Molded Case Construction: Saves valuable panel space while providing durable circuit protection performance.
• Panelboard Mounting Design: Supports straightforward installation in compatible panelboard applications.
• Low-Tab Connection Style: Provides secure electrical connections for dependable operation.
• Equipment Protection: Helps protect electrical equipment, conductors, and connected loads from damage.
• Commercial and Industrial Use: Suitable for commercial, industrial, and construction environments.
• Siemens Manufacturing Quality: Manufactured by Siemens for dependable long-term performance.
  

Technical Specifications

• Catalog Number: BQD125
  
• Manufacturer: Siemens
  
• Series: BQD
  
• Product Type: Molded Case Circuit Breaker
  
• Number of Poles: 1
  
• Ampere Rating: 25 Amps
  
• Voltage Rating: 277 VAC
  
• Frequency: 50/60 Hz
  
• Interrupting Capacity: 14 kAIC
  
• Trip Unit: Thermal Magnetic
  
• Mounting Style: Panelboard Mount
  
• Connection Type: Low Tab
  
• Frame Size: 100A
  
• Dimensions:
  • Width: 1 in.
  • Height: 5 in.
  • Depth: 3 in.
• Enclosure Material: Molded Case
  
• Maximum Operating Temperature: 40°C
  
• Net Weight: 0.586 lb
  

Material Compliance and Certifications

The Siemens BQD125 is manufactured to meet recognized industry standards for low-voltage circuit protection and electrical safety.

• UL 489 Listed
• CSA C22.2 Certified
• IEC 60947-2 Compliant
• RoHS Compliant
• WEEE Compliant
• REACH Information Available

Where It Works Best

• The Siemens BQD125 is commonly used in commercial buildings, office facilities, schools, healthcare facilities, retail locations, industrial plants, and other environments that require dependable branch circuit protection. It is especially well suited for panelboards, lighting distribution systems, control panels, feeder circuits, and low-voltage power distribution applications operating at 277VAC.