TRU LITTELFUSE | Alldatasheet

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Technical content

© 2018 Littelfuse Protection Relays & Controls www.littelfuse.com/ Rev: 1-A-032318 Time Delay Relays Multifunction www.littelfuse.com/www.littelfuse.com/ TRU SERIES www.littelfuse.com/tru Knob Adjustable Universal Time Delay Relay Wiring Diagram

Ordering Information

MODEL INPUT VOLTAGE BASE WIRING FUNCTIONS TRU1 19 to 264VAC; 19 to 30VDC 8-pin DPDT 3 TRU2 19 to 264VAC; 19 to 30VDC 8-pin SPDT 6 TRU3 19 to 264VAC; 19 to 30VDC 11-pin DPDT 6 If you don’t find the part you need, call us for a custom product 800-843-8848

Description

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. Features & Benefits FEATURES BENEFITS Microcontroller based Repeat Accuracy + / - 0.1% or + / - 20ms, whichever is greater 6 time ranges (0.1s to 1,000m) Broad range will satisfy most requirements Knob adjustable time delay Allows user to fine tune time delay based on application needs Universal input voltage Makes it versatile for use in most applications Multifunction Provides the most common standard timing functions LED Indicators Provide visual indication of input voltage and relay status 10A isolated output contacts Allows control of loads for AC or DC voltages L1 N/L2 L1 N/L2 L1 N/L2 8-PIN SPDT Delay-on-Make Interval Single Shot Recycling (ON Time First, Equal Recycle Delays) Delay-on-Break Retriggerable Single Shot 1 1-PIN DPDT Delay-on-Make Interval Single Shot Recycling (ON Time First, Equal Recycle Delays) Delay-on-Break Retriggerable Single Shot 8-PIN DPDT Delay-on-Make Interval Recycling V = Voltage S1 = Initiate Switch Relay contacts are isolated 8-PIN 11-PIN

© 2018 Littelfuse Protection Relays & Controls www.littelfuse.com/ Rev: 1-A-032318 Time Delay Relays Multifunction www.littelfuse.com/www.littelfuse.com/tru TRU SERIES Accessories BZ1 Front Panel Mount Kit Provides an easy method of through-the-panel mounting of 8- or 11-pin plug-in timers, flashers, and other controls. NDS-8 Octal 8-pin Socket 8-pin 35mm DIN rail or surface mount. Rated at 10A @ 300VAC. Surface mounted with two #6 (M 3.5 x 0.6) screws or snaps onto a 35 mm DIN rail. Uses PSC8 hold-down clips. NDS-11 11-pin Socket 11-pin 35mm DIN rail or surface mount. Rated at 10A @ 300VAC. Surface mounted with two #6 (M 3.5 x 0.6) screws or snaps onto a 35 mm DIN rail. Uses PSC11 hold-down clips. PSC8 or PSC11 Hold-down Clips Securely mounts plug-in controls in any position. Provides protection against vibration. Use PSC8 with NDS-8 Octal Socket or PSC11 with NDS-11 Socket. Sold in pairs. Function Diagram RETRIGGERABLE SINGLE SHOT (MOTION DETECTOR) (PSD) V = Voltage S1 = Initiate Switch NO = Normally Open Contact NC = Normally Closed Contact t = Incomplete Time Delay TD = Time Delay R = Reset Specifications Time Delay Type Digital integrated circuitry Range Switch Selectable 0.1s - 1000m in 6 ranges: 1) 0.1 - 10s 2) 1 - 100s 3) 10 - 1000s 4) 0.1 - 10m 5) 1 - 100m 6) 10 - 1000m Adjustments Multiplier 4 position DIP switch selects x0.1, x1, x10, and sec. or min. Time Setting Onboard knob adjustment with 1 - 100 reference dial Two LEDs indicate 1) Input voltage applied 2) Output relay status Repeat Accuracy ±0.1% or ±20ms, whichever is greater Reset Time ≤ 300ms Time Delay vs Temp. & Voltage ±2% Input Voltage - Universal Input Range 19 to 264VAC and 19 to 30VDC AC Line Frequency 50/60Hz Output Type Electromechanical relay Form SPDT or DPDT, isolated Rating 10A resistive @ 120/240VAC & 28VDC; 1/3 hp @ 120/240VAC Life Mechanical - 1 x 107; Electrical - 1 x 10 6 Protection Transient 38 joules Isolation Voltage ≥ 1500V RMS input to output Polarity DC units are reversed polarity protected Mechanical Mounting Plug-in socket Dimensions H 87.3 mm (3.44”); W 60.7 mm (2.39”); D 45.2 mm (1.78”) Termination Octal 8-pin plug-in or magnal 11-pin plug-in Environmental Operating/Storage Temperature -20° to 65°C / -30° to 85°C Weight ≅ 6 oz (170 g) Disclaimer Notice – Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at www.littelfuse.com/product-disclaimer.