New Product Sales Sheet TR Series Dual Pole 500A Master Disconnect Switch Cuts all battery power from vehicle electrical systems with applications needing switching of two circuits, or both positive and negative. 500A continuous current rating for each of the two circuits (using 2 x 4/0 input and 2 x 4/0 output cables). Can be used to switch two vehicle voltage circuits simultaneously (24V and 12V). Disconnect a battery or multiple batteries, in either the positive or the negative line. Ordering Information Part No. Description 880175 Master Disconnect Switch TR Dual Features & Benefits Ingress protection to IP67 and IP69K means that the switch can be mounted in exposed locations on the vehicle. Drop-in replacement for competitive Master Disconnect Switches, with higher vibration and shock capabilities. Direct lockout/tagout capability in On or Off position, with padlock or hasp. Littelfuse Commercial Vehicle Products D-647 Rev C Dimensions 120 100 34 103 2X 8.50 FOR M8 OR 5/16 MOUNTING 37 85 2 X LOCKOUT FEATURE ACCEPTS HASP OR PADLOCK 37 25 NUT M12X1.75 SS SERRATED HEX FLANGE FOR MOUNTING IN 80 HOLE Configurations Master Battery Disconnect Dual Pole Switching One Battery, Positive and Negative (shown in ON state) Master Battery Disconnect Dual Pole Switching Two Batteries (shown in ON state) Specifications 880175 Max operating voltage 48V DC Max continuous current 500A per circuit, with 2 x 4/0 input and 2 x 4/0 output cables 350A per circuit, with 1 x 4/0 input and 1 x 4/0 output cables Cranking rating (30sec) 2250A per circuit, with 2 x 4/0 input and 2 x 4/0 output cables 1750A per circuit, with 1 x 4/0 input and 1 x 4/0 output cables Inrush rating (1 sec) 3000A per circuit with 2 x 4/0 + 1 x 2 AWG Terminal stud size M12 x 25mm - 30 Nm Maximum Torque Ambient temperature range -50° to 85°C at max continuous current Humidity 0 – 95% RH Shock 30 G Vibration 8G Ingress rating IP67 & IP69K Ambient temperature can reach 105°C with appropriate current de-ratng. Stud Terminals must never exceed 125°C under any condition. www.littelfuse.com