Time Delay Relays
Dedicated - Delay-on-Make
TRM SERIES
*
*8-pin models UL listed when used in
combination with P1011-6 socket only.
Description
8-PIN
The TRM Series is a combination of analog 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.
11-PIN
Wiring Diagram
8-pin octal DPDT
Features & Benefits
FEATURES
Electronic circuitry with
electromechanical relay
Isolated 10A, SPDT or
DPDT output contacts
BENEFITS
Repeat Accuracy + / - 2%
Allows control of loads for AC or DC voltages.
L1
N/L2
Accessories
8-pin octal SPDT
V = Voltage
RT is used when
external adjustment
is ordered. Relay
contacts are isolated.
11-pin DPDT
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. Surface
mounted with two #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. Surface
mounted with two #6 screws or snaps onto a
35 mm DIN rail. Uses PSC11 hold-down clips.
L1
N/L2
L1
N/L2
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 sets of two.
Ordering Information
MODEL
INPUT VOLTAGE
ADJUSTMENT
OUTPUT
TIME TOLERANCE
TIME DELAY
TRM120A2X30
TRM120A2Y120
TRM120A2Y180
TRM24A8Y5
TRM24D1X10
TRM24D1X2
120VAC
120VAC
120VAC
24VAC
24VDC/28VDC
24VDC/28VDC
Knob
Knob
Knob
External
Fixed
Fixed
Octal, DPDT
Octal, DPDT
Octal, DPDT
Octal, SPDT without potentiometer
Octal, DPDT
Octal, DPDT
+/- 20%
+/- 10%
+/- 10%
+/- 10%
+/- 20%
+/- 20%
1 - 30s
2 - 120s
2 - 180s
0.1 - 5s
10s
2s
If you don’t find the part you need, call us for a custom product 800-843-8848
© 2016 Littelfuse Protection Relays & Controls
www.littelfuse.com/trm
Rev: 1-A-062216
Time Delay Relays
Dedicated - Delay-on-Make
TRM SERIES
Accessories
P1011-6 Octal Socket for UL listing*
8-pin surface mount socket with binder head
screw terminals. Rated 10A @ 600VAC.
P1004-13, P1004-13-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.
Specifications
Time Delay
Type
Range
Repeat Accuracy
Fixed Time Tolerance &
Setting Accuracy
Reset Time
Recycle Time
Time Delay vs Temp.
& Voltage
Input
Voltage
Tolerance
24VDC/AC
110 to 230VAC/DC
AC Line Frequency
Power Consumption
Output
Type
Form
Rating
Life
Protection
Isolation Voltage
Insulation Resistance
Polarity
Mechanical
Mounting
Dimensions
Termination
Environmental
Operating/Storage
Temperature
Weight
Analog circuitry
50ms - 10m in 15 adjustable ranges or fixed
±2% or 20 ms, whichever is greater
±5, 10, or 20%
≤ 50ms
After timing: ≤ 20ms
During timing: 0.1% of max. time delay or
75ms, whichever is greater
≤±10%
24 or 110VDC; 24, 120, or 230VAC
-15% - 20%
-20% - 10%
50/60 Hz
≤ 2.25W
Electromechanical relay
Isolated DPDT or SPDT
10A resistive @ 120/240VAC & 28VDC;
1/3 hp @ 120/240VAC
Mechanical - 1 x 10
7
; Electrical - 1 x 10
6
≥ 1500V RMS between input &
output terminals
≥ 100 MΩ
DC units are reverse polarity protected
Plug-in socket
H
91.6 mm (3.62”);
W
60.7 mm (2.39”);
D
45.2 mm (1.78”)
Octal 8-pin or 11-pin plug-in
Selection Guides
External R
T
P/N Selection Table
VALUE
PART NUMBER
1M ohm
1.5M ohm
2M ohm
3M ohm
5M ohm
1M ohm
1.5M ohm
2M ohm
3M ohm
5M ohm
P1004-16
P1004-15
P1004-14
P1004-12
P1004-13
P1004-16-X
P1004-15-X
P1004-14-X
P1004-12-X
P1004-13-X
Function Diagram
DELAY-ON-MAKE (ON-DELAY)
V = Voltage
NO = Normally
Open Contact
NC = Normally
Closed Contact
TD = Time Delay
R = Reset
= Undefined
Time
-20° to 65°C / -30° to 85°C
≅
6 oz (170 g)
© 2016 Littelfuse Protection Relays & Controls
www.littelfuse.com/trm
Rev: 1-A-062216
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