Thermal Current Rating (Ith) Intermittent Current Rating: 30% Duty Rated Fault Current Breaking Capacity (Icn) 5ms Time Constant: (in accordance with UL583*) SW822 Maximum Recommended Contact Voltages (Ue): SW822 SW822 Paired Double Pole Single Throw for Motor Reversing (Part of the SW80 Series) The SW822 has been designed for Motor Reversing applications with direct current loads, particularly motors as used on electric vehicles such as industrial trucks. Developed for both interrupted and uninterrupted loads, the SW822 is suitable for switching Resistive, Capacitive and Inductive loads. • Interrupted current - opening and closing on load with frequent switching (results in increased contact resistance). • Uninterrupted current - no or infrequent load switching requirements (maintains a lower contact resistance). The SW822 features single pole double breaking main contacts with silver alloy tips, which are weld resistant, hard wearing and have excellent conductivity. The SW822 has M8 stud main terminals and 6.3mm spade coil connections. Mounted using supplied brackets, mounting can be horizontal or vertical, when vertical the M8 contact studs should point upwards. If the requirement is for downwards orientation we can adjust the contactor to compensate for this. Typical Voltage Drop per pole across New Contacts at 100A Mechanical M.T.B.F Coil Voltage Available (Us) (Rectifier board required for A.C.) Coil Power Dissipation: Highly Intermittent Rated Types Intermittently Rated types Prolonged Rated Types Continuously Rated Types Maximum Pull-In Voltage (Coil at 20˚ C) Guideline: Highly Intermittent Rated types (Max 25% Duty Cycle) Intermittently Rated types (Max 70% Duty Cycle) Prolonged Operation (Max 90% Duty Cycle) Continuously Rated Types (100% Duty Cycle) Drop-Out Voltage Range Typical Pull-In Time (N/O contacts to close) Typical Drop-Out Time (N/O Contacts to Open) §: 5ms 50ms Note: Where applicable values shown are at 20˚C * Please check our web site for product UL status Magnetic Latching† (Not fail safe) Closed Contact Housing‡ Environmentally Protected IP66 (see SW822P Catalogue sheet) Current (Amperes) Contact Performance Key: Interrupted and Uninterrupted Current The SW822 has fast drop out times and relatively slow pull-in times. Motor direction changes can be undertaken without risk of all contacts being closed at the same time. Note, some coil suppression such as diodes substantially increase drop out times and care must be taken to ensure suitable suppression is used (e.g. diode and resistor in series). Performance data provided should be used as a guide only. Some de-rating or variation from figures may be necessary according to application. Thermal current ratings stated are dependant upon the size of conductor being used For further technical advice email: [email protected] Albright reserve the right to change data without prior notice 0 Rated suitable for Application Mounting Brackets Copper busbar Advised Connection Sizes for Maximum Continuous Current Magnetic Blowouts - High Powered† Magnetic Blowouts† Guideline Contactor Weight: Figures are for guideline purposes only Time (Seconds) Operating Ambient Temperature Auxiliary Contacts Typical Contact Bounce Period With Diode and Resistor (Subject to resistance value) With Diode Suppression Without Suppression EE Type (Steel Shroud) Large Tips Connection Diagram Textured Tips Silver Plating AC Rectifier Board (Fitted) Coil Suppression† Flying Leads Manual Override Operation M4 Stud Terminals Vacuum Impregnation Key: Optional Connections become polarity sensitive Open Housing Available Albright International Ltd, Evingar Trading Estate, Ardglen Road, Whitchurch, Hampshire, RG28 +44 UK Albright International, 125 Red Lion Road, Surbiton, Surrey KT6 7QS, England,Tel: +44 (0) 20 8390 5357, Fax:7BB,(0) 20 8390 1927 Tel: [email protected] or [email protected] Web 890030, Fax: +44 (0)1256 890043 E-mail: +44 (0)1256 893060, Fax: +44 (0)1256 893562, Dedicated Sales Tel: +44 (0)1256 Site: www.albrightinternational.com E-mail: [email protected] or [email protected] Web Site: www.albrightinternational.com Copyright © 2010 Albright International Ltd Copyright © 2013 Albright International LTD