Time Delay Relays DELAY-ON-MAKE * TRM Series Description The TRM series is a combination of digital electronic circuitry and electromechanical relay output. It provides input to output isolation with a wide variety of input voltages and time ranges. Standard plug-in base wiring, fast reset, rugged enclosure, and good repeat accuracy make the TRM a select choice in any OEM application. Operation (Delay-on-Make) Upon application of input voltage, the time delay begins. The output is de-energized before and during the time delay. At the end of the time delay, the output relay energizes and remains energized until input voltage is removed. Reset: Removing input voltage resets the time delay and Wiring Diagram output. 8-pin octal DPDT Features & Benefits FEATURES BENEFITS Electronic circuitry with Repeat Accuracy +/- 2 % electromechanical relay Isolated 8 A, SPDT or Allows control of loads with independent L1 N/L2 DPDT output contacts voltage sources. 8-pin octal SPDT V = Voltage R is used when T external adjustment is ordered. Relay contacts are isolated. L1 N/L2 Ordering Information INPUT TIME MODEL ADJUSTMENT OUTPUT TIME DELAY VOLTAGE TOLERANCE TRM120A2X30 120 V ac Knob Octal, DPDT +/- 20% 130 s L1 N/L2 TRM120A2Y120 120 V ac Knob Octal, DPDT +/- 10% 2120 s TRM120A2Y180 120 V ac Knob Octal, DPDT +/- 10% 2180 s Octal, SPDT without TRM24A8Y5 24 V ac External +/- 10% 0.15 s potentiometer TRM24D1X10 24 V dc/28 V dc Fixed Octal, DPDT +/- 20% 10 s TRM24D1X2 24 V dc/28 V dc Fixed Octal, DPDT +/- 20% 2 s Littelfuse.com 2021 Littelfuse, Inc. 1 of 2 Rev: 1-B-030121Time Delay Relays DELAY-ON-MAKE Specifications Accessories Time Delay Type Digital circuitry OT08PC 8-pin Octal Socket for UL listing* Range SeeOrdering Informatio table 8-pin 35 mm DIN-rail or surface mount. Rated Repeat Accuracy 2 % at 10 A 600 V ac. Surface mounted with two Fixed Time Tolerance & 6 screws or snaps onto a 35 mm DIN rail. Setting Accuracy 5, 10, or 20 % OT11PC Octal Socket for UL listing* Reset Time 50 ms 11-pin surface & DIN rail mountable. Rated for Recycle Time After timing: 20 ms 10 A 300 V ac During timing: 0.1 % of max. time delay or 75 ms, whichever is greater Time Delay vs Temp. P1011-6 Octal Socket for UL listing* & Voltage 5 % 8-pin surface mount socket with binder head Indicator LED glows after time delay relay is screw terminals. Rated 10 A 600 V ac. energized Input P1004-95, P1004-95-X Versa-Pot Voltage 24 V dc 24, 120 V ac Panel mountable, industrial potentiometer Tolerance recommended for remote time delay 24 V dc/ac -15 %20 % adjustment. 120 V ac -20 %10 % AC Line Frequency 50/60 Hz P0700-7 Versa-Knob Designed for 0.25 in (6.35 mm) shaft of Power Consumption 3.25W Versa-Pot. Semi-gloss industrial black finish. Output Type Electromechanical relay C103PM (AL) DIN Rail Form Isolated DPDT or SPDT 35 mm aluminum DIN rail available in a 36 in. Rating 8 A resistive 120/240 V ac (91.4 cm) length. 1/3 hp 120/240 V ac 7 6 Life Mechanical - 1 x 10 Electrical - 1 x 10 Protection Isolation Voltage 1500 V rms between input & Selection Guide output terminals Insulation Resistance 100 M External R P/N Selection Table T Polarity Dc units are reverse polarity protected VALUE PART NUMBER** Mechanical 100K ohm P1004-95 Mounting Plug-in socket Dimensions H 44.45 mm (1.75) W 60.33 mm (2.38) 100K ohm P1004-95-X D (with socket) 104.78 mm (4.13) **Externally adjustable potentiometers. Numbers with additional- include Termination Octal 8-pin or 11-pin plug-in two pre-soldered 8 wire leads with 1/4 female quick-connect terminals (for Environmental clockwise increase). Operating/Storage Temperature -20 C to 65 C / -30 C to 85 C Weight 4 oz (113 g) Safety Marks Function Diagram UL (socket required)* UL 508 (E57310) DELAY-ON-MAKE (ON-DELAY) V = Voltage NO = Normally *UL Listed when used with Part Number OT08-PC or RB08-PC manufactured by Open Contact Custom Connector Corp. NC = Normally Closed Contact Note: Manufacturer s recommended screw terminal torque for the OT series TD = Time Delay R = Reset sockets is 12 in-lbs. = Undened Time 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. Littelfuse.com 2021 Littelfuse, Inc. 2 of 2 Rev: 1-B-030121