Commercial Vehicle Product Datasheet TR SERIES DUAL POLE MASTER DISCONNECT SWITCH 500A DPST IP67/IP69k Integrated Lock-Out Tag-Out 880175 880175-0002 880175-0001 Description Specifications Overview Max Operating Voltage: 48V DC Cuts all battery power from vehicle electrical systems with applications needing switching of two circuits, or both Max Continuous Current: 5 00A per circuit, with 2 x 4/0 input and 2 x 4/0 output cables positive and negative. 500A continuous current rating for 350A per circuit, with 1 x 4/0 input and each of the two circuits (using 2 x 4/0 input and 2 x 4/0 1 x 4/0 output cables output cables). Can be used to switch two vehicle voltage Operating Temp: -50 to 85C, DC-Rated to 105C circuits simultaneously (24V and 12V). Disconnect a battery or multiple batteries, in either the positive or the negative line. Ingress Rating: IP67/IP69K Features and Benefits Web Resources Ingress protection to IP67 and IP69K means that the switch Download technical resources at: can be mounted in exposed locations on the vehicle. littelfuse.com/TR Drop-in replacement for competitive Master Disconnect Switches, with higher vibration and shock capabilities. Ordering Information Direct lockout/tagout capability in On or Off position, with padlock or hasp. PART NUMBER DESCRIPTION 880175 Master Disconnect Switch 880175-0001 Master Disconnect Switch TR Dual Red Knob 880175-0002 Master Disconnect SwitchTR Dual Yellow Knob 880302 Master Disconnect Switch TR 2 Pole (CB) Datasheet Replaces Hotfeed Number D-647 1 of 2 littelfuse.com 2018 Littelfuse Commercial Vehicle Products Rev: 120618Commercial Vehicle Product Datasheet TR SERIES DUAL POLE MASTER DISCONNECT SWITCH Specifications Max Operating Voltage 48V DC 500A per circuit, with 2 x 4/0 input and 2 x 4/0 output cables Max Continuous Current 350A per circuit, with 1 x 4/0 input and 1 x 4/0 output cables 2250A per circuit, with 2 x 4/0 input and 2 x 4/0 output cables Cranking Rating (30sec) 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 Recommended Terminal Torque 20 N-m (30 Nm Max) Temperature Range -50 to 85C, DC-Rated to 105C Humidity 0 95% RH Shock 30 G Vibration 8 G Ingress Protection IP67 & IP69K Recommended Mounting Torque 15 N-m (20Nm Max) Note: ambient temperature can reach 105C with appropriate current de-rating. Stud terminals must never exceed 125C under any condition. Dimensions 120 100 34 103 2X 8.50 FOR M8 OR 5/16 MOUNTING 37 85 NUT M12X1.75 SS 2 X LOCKOUT FEATURE FOR MOUNTING SERRATED HEX ACCEPTS HASP OR IN 80 HOLE FLANGE PADLOCK 37 25 Configurations DC LOADS Battery 3 4 3 4 2 1 2 1 DC LOADS Battery Battery STARTER OR OTHER LOAD Master Battery Disconnect Dual Pole Master Battery Disconnect Dual Pole Switching One Battery, Positive and Negative Switching Two Batteries (shown in ON state) (shown in ON state) Visit Littelfuse.com for the most up-to-date product information. Littelfuse products are designed for specific applications and should not be used for any purpose (including, without limitation, automotive applications) not expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse product documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse product documentation. 2 of 2 littelfuse.com 2018 Littelfuse Commercial Vehicle Products Rev: 120618