SPECIFICATION Series 1750 Metal Lever Properties Contact Rating 1750/1760/1770 16(4)A 250Vac 16A 20A 24V DC 1784 - 1789 5A Contact gap > 3.0mm insulation Class Il Flame Retardancy Switch Body UL 94V2 Endurance (mech) > 50,000 ops. (elec) > 10,000 ops. (at rated current) Contact Resistance in new condition <10mohm Insulation resistance > 1000 M ohm Dielectric strength: Across open contacts > 2KV Between live parts and accessible surfaces > 4KV Tracking resistance KB250 Humidity resistance at 91-95% relative humidity 48 Hours Materials Current carrying parts: Contact points Silver alloy Fixed Terminal Copper alloy, Silver plated with silver contact Centre Terminal Copper alloy, Silver plated Moving contact Copper alloy, Silver plated with silver contact Switch body Nylon 66 Switch lever Copper alloy, Nickel plated Top plate and neck Cast zinc ailoy Fixing nut Brass, chrome plated SOOOOCKHEDOO OWE Approvals applied for. __Aatcolectric SWITCHES PLC Approved metal lever switches suitable for Class Il applications 4 30.2 nom 15.6 | = 012.7 ' Ly Vii ZW sy on a | Keyslot 1.3 Up to 6.5 be-25.2 | 41.0 nom 19.6 C1750 OO ve) 6.3Tab terminals T1750 OO te Solder terminals $1750 OO Screw & Clamp terminals . . . 6 5 4 Switching Function cin Links not supplied 3 > ? db a Keysilot e we a C1750 OO On/Off e a ; e ale e C176000 3=Changeover e e e e C177000 =Changeover Centre Off C178400 A+B A OFF oe) Oa C1785 OO OFF A B C1786 OO A A+B B+C C1787 00 A B Cc C1788 OO A B B+C C1789 00 A A+B B Water resistant cover F0331MO provides panel sealing to IP66. Arcolectric Switches plc, Central Avenue,West Molesey, Surrey, England. KT8 2RF Tel: 081-979 3232 Fax: 081-979 2565