Here comes our Electric Chain Hoist which is designed for heavy duty applications that require three phase power. ?Only suits for American 3Phase 220Voltage.For residential use, please call our customer service staffs or e-mail them? Housing and hooks is made of aluminium alloy which features high toughness and durability and normally is used to make parts bearing heavy loads. The UP button is for lowering the hoist and collecting the chain bag: press the UP button until the chain are totally in chain bag. The special cooling fin makes the hoist cooling more fast and effectively improves working efficiency. Safety Devices of Our Electric Chain Hoist 1?Side Magnetic Braking Device It is unique design which is characterized with the ability that the brake acts immediately as soon as the electric power is cut off 2?Hooks and Safety Latch The hook is hot forging with high tensile and heat treated to meet the demand on strength and hardness. The operation safety of the lower hook is ensured by 360? rotation and safety latch 3?Anti-phrase Protecting Device It is special design to control the circuit not to work and protect the electric motor from burned in case of wiring error in the power supply. 4?Limit Switch It is installed where the weights is lifted on and off to make the motor stop automatically so as to prohibit the chains from exceeding for safety. Specification? Model: HHBB02-02S Material: aluminium alloy, copper Capacity: 2 ton/4400lb lifting height: 3m/10ft Lifting speed: 3.4m/min Power of Lifting Motor: 1.5kw Voltage of Lifting Motor: 220V/50Hz/3 Phases?Only suits for American 3Phase 220Voltage.? Rotation Speed of Lifting Motor: 1440r/min Packing Dimension: 60x46x38cm/24x19x15inch Packing Weight: 75kg/165lb Package content? 1 x Electric Chain Hoist