TRM LITTELFUSE | Alldatasheet
Document overview
- Manufacturer or author: Provided By alldatasheet.com(free datasheet download site)
- PDF pages: 2
Technical content
Littelfuse.com © 2021 Littelfuse, Inc. Rev: 1-B-030121 1 of 2 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 output. Features & Benefits FEATURES BENEFITS Electronic circuitry with electromechanical relay Repeat Accuracy +/- 2 % Isolated 8 A, SPDT or DPDT output contacts Allows control of loads with independent voltage sources. L1 N/L2 L1 N/L2 L1 N/L2 8-pin octal DPDT 8-pin octal SPDT V = Voltage RT is used when external adjustment is ordered. Relay contacts are isolated. Wiring Diagram
Ordering Information
VOLTAGE ADJUSTMENT OUTPUT TIME TOLERANCE TIME DELAY TRM120A2X30 120 V ac Knob Octal, DPDT +/- 20% 1–30 s TRM120A2Y120 120 V ac Knob Octal, DPDT +/- 10% 2–120 s TRM120A2Y180 120 V ac Knob Octal, DPDT +/- 10% 2–180 s TRM24A8Y5 24 V ac External Octal, SPDT without potentiometer +/- 10% 0.1–5 s 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. Rev: 1-B-030121 2 of 2 Time Delay Relays DELAY-ON-MAKE OT08PC 8-pin Octal Socket for UL listing* 8-pin 35 mm DIN-rail or surface mount. Rated at 10 A @ 600 V ac. Surface mounted with two #6 screws or snaps onto a 35 mm DIN rail. OT11PC Octal Socket for UL listing* 11-pin surface & DIN rail mountable. Rated for
10 A @ 300 V ac
P1011-6 Octal Socket for UL listing* 8-pin surface mount socket with binder head screw terminals. Rated 10 A @ 600 V ac. P1004-95, P1004-95-X Versa-Pot Panel mountable, industrial potentiometer recommended for remote time delay adjustment. P0700-7 Versa-Knob Designed for 0.25 in (6.35 mm) shaft of Versa-Pot. Semi-gloss industrial black finish. C103PM (AL) DIN Rail 35 mm aluminum DIN rail available in a 36 in. (91 .4 cm) length. Selection Guide External RT P/N Selection T able VALUE PART NUMBER 100K ohm 100K ohm P1004-95 P1004-95-X Externally adjustable potentiometers. Numbers with additional "-X" include two pre-soldered 8" wire leads with 1/4" female quick-connect terminals (for clockwise increase). Function Diagram DELAY-ON-MAKE (ON-DELAY) V = Voltage NO = Normally Open Contact NC = Normally Closed Contact TD = Time Delay R = Reset = Undefined Time Specifications Time Delay Type Digital circuitry Range See "Ordering Information" table Repeat Accuracy ±2 % Fixed Time Tolerance & Setting Accuracy ±5, 10, or 20 % Reset Time ≤ 50 ms Recycle Time After timing: ≤ 20 ms During timing: 0.1 % of max. time delay or 75 ms, whichever is greater Time Delay vs Temp. & Voltage ≤±5 % Indicator LED glows after time delay; relay is energized Input Voltage 24 V dc; 24, 120 V ac Tolerance
24 V dc/ac -15 %–20 %
120 V ac -20 %–10 %
AC Line Frequency 50/60 Hz Power Consumption ≤ 3.25W Output Type Electromechanical relay Form Isolated DPDT or SPDT Rating 8 A resistive @ 120/240 V ac; 1/3 hp @ 120/240 V ac Life Mechanical - 1 x 107; Electrical - 1 x 10 6 Protection Isolation Voltage ≥ 1500 V rms between input & output terminals Insulation Resistance ≥ 100 MΩ Polarity Dc units are reverse polarity protected Mechanical Mounting Plug-in socket Dimensions H 44.45 mm (1.75”); W 60.33 mm (2.38”); D (with socket) 104.78 mm (4.13”) Termination Octal 8-pin or 11-pin plug-in Environmental Operating/Storage Temperature -20 °C to 65 °C / -30 °C to 85 °C Weight ≅ 4 oz (113 g) Safety Marks UL (socket required)* UL 508 (E57310) *UL Listed when used with Part Number OT08-PC or RB08-PC manufactured by Custom Connector Corp. Note: Manufacturer's recommended screw terminal torque for the OT series sockets is 12 in-lbs. Accessories 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.