Default product image

Siemens EH1B040 - Molded Case Circuit Breaker 40A 277V

Siemens
Price
Save $-145.40
/
Condition
  • In stock, ready to ship
  • Backordered, shipping soon
Call for Price
Siemens EH1B040 is a molded case circuit breaker from the EH Series, designed for dependable overcurrent protection in electrical distribution systems. This single-pole unit is rated for 40A at 277V AC and utilizes a thermal magnetic trip mechanism with LI (Long-Time and Instantaneous) functions to safeguard against overloads and short circuits. The compact bolt-on construction weighs 1 lb and is built for secure panel installation in commercial and industrial environments. It complies with industry standards for molded case breakers, delivering a 10kA interrupting capacity at 277V for reliable fault interruption. Typical applications include branch circuit protection in lighting panels, power distribution boards, and other 277/120V AC systems.

Key Features & Specifications
  • Manufacturer: Siemens
  • Model: EH1B040
  • Type: Molded Case Circuit Breaker
  • Series/Frame: EH
  • Amperage: 40 Amps
  • Voltage Rating: 277 Volts AC
  • Number of Poles: 1
  • Phase: 1
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • AIC Rating: 10kA@277V
  • Weight: 1 lb