DC88P Monoblock
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DC88P Monoblock, Single Pole Double Throw for Motor Reversing - IP66 (Part of the SW80 Series) The DC88P series of contactors has been designed for direct current loads, particularly motors as used on electric vehicles such as industrial trucks. The DC88P is a monoblock construction, resulting in a neat compact design which is compatible with modern electronic control systems. Developed for both interrupted and uninterrupted loads, the DC88P is suitable for switching Resistive, Capacitive and Inductive loads. The DC88P is sealed to IP66 thus offering greater protection against adverse environments such as water or dust. • 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 main contact circuit, designed for motor reversing, has a built in failsafe, so that if both coils are energised simultaneously the contact arrangement is open circuit. The DC88P has double breaking main contacts with silver alloy contact tips, which are weld resistant, hard wearing and have excellent conductivity. The DC88P M8 main stud terminals can be configured in a variety of ways in order to suit the application. Coil connections are by means of 6.3mm spades and mounting is via the supplied bracket and 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. Interrupted Uninterrupted Thermal Current Rating (^h) Intermittent Current Rating: 30% Duty 40% Duty 50% Duty 60% Duty 70% Duty Rated Fault Current Breaking Capacity (Icn) 5ms Time Constant: (in accordance with UL583*) Maximum Recommended Contact Voltages (Ue): 48V D.C Typical Voltage Drop per pole across New Contacts at 100A: Normally Open Normally Closed Mechanical M.T.B.F Coil Voltage Available (Us) 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 ^ Typical Drop-Out Time (N/O Contacts to Open): Without Suppression ^ With Diode Suppression ^ With Diode and Resistor r 8 20r (Subject to resistance value) " Typical Main Contact Changeover Time (milliseconds): Normally Closed to Normally Open Normally Open to Normally Closed Typical Contact Bounce Period Operating Ambient Temperature Guideline Contactor Weight Connection Conductor Sizes for Maximum Continuous Current Should be Rated Suitable for Application Key: = Interrupted ^ = Uninterrupted Note: Where applicable values shown are at 20'C * Please check our web site for product UL status • 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: technical@albrightinternational.com • Albright reserve the right to change data without prior notice Albright International LtR, Evingar Trading Estate, Ardglen Road, Weltchurch, Hampshire, RG28 7BB, UK Tel: s44 (0)12513 893060, Fax: +44 (0)1 256 893562, Dedicated Sales Tel: +-44 (0)1256 890030, Fax: -+44 (0)1256 890043 E-mail: sales@albrightinternational.com or technical@albrightinternational.com Web Site: www.albrightinternational.com Copyright © 2013 Albright International LTD