Thermal Current Rating (Ith) Intermittent Current Rating: 30% Duty Rated Fault Current Breaking Capacity (Icn) 5ms Time Constant: (in accordance with UL583*) DC88 The DC88 motor reversing type of contactor has been designed for direct current loads, particularly motors as used on electric vehicles such as industrial trucks. The DC88 is a monoblock construction, resulting in a compact design which is compatible with modern electronic control systems. Developed for both interrupted and uninterrupted loads, the DC88 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). Maximum Recommended Contact Voltages (Ue): DC88 Typical Voltage Drop per pole across New Contacts at 100A: Normally Open Normally Closed Mechanical M.T.B.F DC88 Monoblock Single Pole Double Throw for Motor Reversing (Part of the SW80 Series) Coil Voltage Available (Us) (Rectifier board required for A.C.) DC88A (with integral bracket) 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 DC88 has double breaking main contacts with silver alloy contact tips, which are weld resistant, hard wearing and have excellent conductivity. The DC88 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. 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 DC88 (with optional tapped holes) With Diode Suppression With Diode and Resistor (Subject to resistance value) Normally Closed to Normally Open Normally Open to Normally Closed Guideline Contactor Weight: 990 gms + 20 gms + 50 gms Mounting Brackets (See overleaf) Magnetic Latching† (Not fail safe) Auxiliary Contact Switching Capabilities (Resistive Load): 5A at 24V D.C. 2A at 48V D.C. 0.5A at 240V D.C. Connection Conductor Sizes for Maximum Continuous Current Should be Rated Suitable for Application Key: Interrupted and Uninterrupted Current 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: [email protected] Albright reserve the right to change data without prior notice Current (Amperes) Closed Contact Housing‡ Environmentally Protected IP66 (see DC88P-1000 Catalogue sheet) Auxiliary Details Auxiliary Thermal Current Rating Magnetic Blowouts - High Powered† With Blowouts Magnetic Blowouts† Figures are for guideline purposes only Operating Ambient Temperature Auxiliary Contacts Typical Contact Bounce Period Time (Seconds) Typical Main Contact Changeover Time (milliseconds): EE Type (Steel Shroud) Contacts 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

DC88 Monoblock Single Pole Double Throw for Motor Reversing Normally Closed Contact Double Ended Polarity Orientation Main Terminal Options and Mounting Options Stud Male Post M4 Tapped Holes L Bracket2 Integrated Bracket1 Fitted as Standard 2 See Stud Range Catalogue for Details OPTIONAL PANEL MOUNTING VERSION FITTED HERE OPTIONAL CLOSED CONTACT | 5.2[0.20j PREVENT INGRESS OF DUST ETC Albright International Ltd, Evingar Trading Estate, Ardglen Road, Whitchurch, Hampshire, RG28 7BB, UK E-mail: [email protected] [email protected] Web Site: www.albrightinternational.com...