Basic parameters of B3 series circuit breaker
Maximum voltage: 480/277 VAC 50/60 Hz, 80VDC.
Current class: 1A to 100A.
Auxiliary switch: single-pole double throw switch, 10.1A 250VAC, 0.5A 80VDC, 1A 125VAC.
Insulation resistance: at 500VDC, minimally 100 mega Ω.
Dielectric strength: UL/CSA product, 1500V between the terminals, 1 minute under AC.
Service life: The mechanic service life under rated current and voltage is 10,000 cycles (6 cycles of operation per minute), and the electric service life is 6,000 cycles.
Free trip: when overloading happens, tripping has already been formed in the circuit breaker even if the handle of operating device is forced to be held on the position of ON.
Trip indication: when overloading happens, indicator of operating device handle shows the position of OFF. If it is half trip, the handle will be in the centre in the case of overloading.
Operating environment: - 40℃ to +85℃.
Installation requirements: during the product installation, the 0.8-1.0NM torque shall be applied on the panel mounting screws (#6-32 or M3). When connecting the terminals, do apply the torque of 1.7-2.3NM for #10-32 or M5 screws, 1.7-2.3NM for #10-32 or M5 screws and 3.4-4.0NM for #1/4-20 or M6 screws. As for the 2-pole or 3-pole circuit breakers with two or more handles, connecting rods, sleeves and spring retaining rings on the handles are in buck. Please put the axis and sleeve on the handle and snap the spring retaining rings on two ends after installing the product. Please install the product horizontally, and order the customized one if vertical installation is required.
Number of poles: 1 pole, 2 poles, 3 poles.
Weight: Approximate 110g/pole
Complying with: EN60934, UL1077, GB17701, UL489A and UL489
