Interrupted Uninterrupted Thermal Current Rating ('th) V 100A Intermittent Current Rating: Rated Fault Current Breaking Capacity (^cn) 5ms Time Constant: Maximum Recommended Contact Voltages (Ue): Typical Voltage Drop per pole across New Contacts at 100A: Normally Open Normally Closed 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 Intermittently Rated types Prolonged Operation Continuously Rated Types Drop-Out Voltage Range Typical Pull-In Time Typical Drop-Out Time (N/O Contacts to Open): Without Suppression With Diode Suppression (Subject to resistance value) Main Contact Change over time (milliseconds): Normally Closed to Normally Open W Normally Open to Normally Closed W Typical Contact Bounce Period W Operating Ambient Temperature W Guideline Contactor Weight: Auxiliary Details Auxiliary Thermal Current Rating Auxiliary Contact Switching Capabilities (Resistive Load): Advised Connection Sizes for Maximum Continuous Current SW88 - 2 x SW84 on Common Bracket for Motor Reversing The SW88 has been designed for direct current loads, particularly motors as used on electric vehicles such as industrial trucks. Developed for both interrupted and uninterrupted loads, the SW88 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 SW88 features single pole double breaking main contacts with silver alloy tips, which are weld resistant, hard wearing and have excellent conductivity. The SW88 main contact circuit, designed for motor reversing, is such that it has a built in failsafe, so that if both coils are energised simultaneously the contact arrangement is open circuits. The SW88 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. OPTIONAL CLOSED CONTACT HOUSING OPTIONAL MICROSWITCH AUXILIARY CONTACTS FITTED HERE SPADE TERMINALS Auxiliary Contacts Magnetic Blowouts - High Powered1" Mounting Brackets Magnetic Latching1" (Not fail safe) Closed Contact Housing* EE Type (Steel Shroud) Current (Amperes) Large Tips Textured Tips Silver Plating Cable ^Rated suitable for Application^ Note: Where applicable values shown are at 20°C * Please check our web site for product UL status § Normally Open contacts only - normally closed contacts are not designed to make and break current • Performance data provided should be used as a guide only. Some de- rating/variation from figures may be necessary according to application. • Thermal current ratings stated are dependant upon size of conductor used • For further technical advice email: [email protected] • Albright reserve the right to change data without prior notice Connection Diagram AUXILIARY CONTACT AUXILIARY CONTACT AC Rectifier Board (Fitted) o Manual Override Operation o Key: Optional o Standard • Not Available X T Connections become polarity sensitive * Open Housing Available Albright International Ltd, Evingar Trading Estate, Ardglen Road, Whitchurch, Hampshire, RG28 7BB, UK E-mail: [email protected] [email protected] Web Site: www.albrightinternational.com SW88 Copyright ©2013 Albright International LTD