Name: TRU Series - Knob Adjustable Universal Time Delay Relay
Brand: Littelfuse Inc.

TRU Series - Knob Adjustable Universal Time Delay Relay

Series: TRU

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Disclaimer Notice

Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those 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 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 documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

The TRU Series is a multifunction, knob adjustable, Universal Time Delay Relay. It includes six of the most popular timing functions selected by a slide switch. The time delay is knob adjustable and the time delay range is switch selectable. The repeat accuracy is + 0.1%. Both function and time range can be selected on the top face of the unit. In addition to multifunctioning and multiple time ranges, the TRU Series features universal input voltage; 19 to 264VAC and 19 to 30VDC and full 10A output relay. The TRU Series can directly replace up to 1000 competitive time delay relay models.

Operation
A six position slide switch selects delay-on-make, interval, single shot, recycling (ON time first, Equal Recycle Delays), delay-on-break, and retriggerable single shot. 8-pin DPDT base wiring is limited to delay-on-make, interval, and recycling functions. All six functions are available in the 8-pin SPDT and 11-pin DPDT versions.

Access specifications, certifications, check availability and order parts below

Catalog #	Input Voltage (V)	Output Form	Storage Temperature (F/C)	Time Delay Range	Dimensions	Stock	Samples

TRU1	19 or 264 V ac; 19 or 30 V dc	Isolated DPDT with 3 functions	-40° to 85°C (-40° to 185°F)	0.1 s - 1000 m in 6 ranges: 0.1 - 10 – 1 - 100 or 10 - 1000 s; 0.1 - 10 – 1 - 100 or 1000 m	3.44 H x 2.39 W in. (87.3 x 60.7 mm)	Check	Order
TRU2	19 or 264 V ac; 19 or 30 V dc	Isolated SPDT	-40° to 85°C (-40° to 185°F)	0.1 s - 1000 m in 6 ranges: 0.1 - 10 – 1 - 100 or 10 - 1000 s; 0.1 - 10 – 1 - 100 or 1000 m	3.44 H x 2.39 W in. (87.3 x 60.7 mm)	Check	Order
TRU3	19 or 264 V ac; 19 or 30 V dc	Isolated DPDT	-40° to 85°C (-40° to 185°F)	0.1 s - 1000 m in 6 ranges: 0.1 - 10 – 1 - 100 or 10 - 1000 s; 0.1 - 10 – 1 - 100 or 1000 m	3.44 H x 2.39 W in. (87.3 x 60.7 mm)	Check	Order