Altech 12A 2 Pole Thermal Magnetic Circuit Breaker, 480Y/277V UL. Terminal Contact Type: Box Clamp, Ring Tongue Terminal. Break Time: Time Delay. Overall Dimensions: 105.3 x 35 x 74.4mm. Mounting Style: DIN Rail Mount. Tripping Mechanism: Thermal-Magnetic. Tripping Characteristics: Type D. Breaking Capacity at Maximum Voltage Rating: 10 kA. Overall Length: 105.3mm. Application: Heaters and Reactive Loads, High Inrush Motors, Power Supplies, Transformers. Reset Actuator Type: Handle. Circuit Breaker Type: MCCB. MPN: 2D12UL