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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
11-PIN
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.
Wiring Diagram
Features & Benefits
8-pin octal DPDT
L1
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.
N/L2
FEATURES
BENEFITS
Electronic circuitry with
electromechanical relay
Repeat Accuracy + / - 2%
Isolated 10A, SPDT or
DPDT output contacts
Allows control of loads for AC or DC voltages.
Accessories
8-pin octal SPDT
V = Voltage
L1
RT is used when
external adjustment
is ordered. Relay
contacts are isolated.
N/L2
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
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.
N/L2
Ordering Information
MODEL
INPUT VOLTAGE
ADJUSTMENT
OUTPUT
TIME TOLERANCE
TIME DELAY
TRM120A2X30
120VAC
Knob
Octal, DPDT
+/- 20%
1 - 30s
TRM120A2Y120
120VAC
Knob
Octal, DPDT
+/- 10%
2 - 120s
TRM120A2Y180
120VAC
Knob
Octal, DPDT
+/- 10%
2 - 180s
TRM24A8Y5
24VAC
External
Octal, SPDT without potentiometer
+/- 10%
0.1 - 5s
TRM24D1X10
24VDC/28VDC
Fixed
Octal, DPDT
+/- 20%
10s
TRM24D1X2
24VDC/28VDC
Fixed
Octal, DPDT
+/- 20%
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
Specifications
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.
Selection Guides
External RT 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)
© 2016 Littelfuse Protection Relays & Controls
www.littelfuse.com/trm
V = Voltage
NO = Normally
Open Contact
NC = Normally
Closed Contact
TD = Time Delay
R = Reset
= Undefined
Time
Time Delay
Type
Analog circuitry
Range
50ms - 10m in 15 adjustable ranges or fixed
Repeat Accuracy
±2% or 20 ms, whichever is greater
Fixed Time Tolerance &
Setting Accuracy
±5, 10, or 20%
Reset Time
≤ 50ms
Recycle Time
After timing: ≤ 20ms
During timing: 0.1% of max. time delay or 75ms, whichever is greater
Time Delay vs Temp.
& Voltage≤±10%
Input
Voltage
24 or 110VDC; 24, 120, or 230VAC
Tolerance
24VDC/AC
-15% - 20%
110 to 230VAC/DC
-20% - 10%
AC Line Frequency
50/60 Hz
Power Consumption
≤ 2.25W
Output
Type
Electromechanical relay
Form
Isolated DPDT or SPDT
Rating
10A resistive @ 120/240VAC & 28VDC;
1/3 hp @ 120/240VAC
Life
Mechanical - 1 x 107; Electrical - 1 x 10 6
Protection
Isolation Voltage
≥ 1500V RMS between input &
output terminals
Insulation Resistance ≥ 100 MΩ
Polarity
DC units are reverse polarity protected
Mechanical
Mounting Plug-in socket
DimensionsH 91.6 mm (3.62”); W 60.7 mm (2.39”);
D 45.2 mm (1.78”)
Termination
Octal 8-pin or 11-pin plug-in
Environmental
Operating/Storage
Temperature
-20° to 65°C / -30° to 85°C
Weight
≅ 6 oz (170 g)
Rev: 1-A-062216
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