© 2016 Littelfuse Protection Relays & Controls Rev: 1-A-062216
Time Delay Relays
Dedicated - Delay-on-Make
www.littelfuse.com/prlm
PRLM SERIES
Description
The PRLM Series is designed for use in non-critical timing
applications. It offers low cost, knob adjustable timing control,
full 10A relay output, and onboard LED indication. The knob
adjustment provides a guaranteed time range of up to 10
minutes in 6 ranges. The onboard LED indicates whether or
not the unit is timing (flashing LED) as well as the status of
the output.
Operation (Delay-on-Make)
The time delay is initiated when input voltage is applied. LED
flashes during timing. At the end of the delay period, the output
contacts energize. LED is on steady after the unit times out.
Reset: Reset is accomplished by removal of input voltage. There
is no false output when reset during timing.
Features & Benefits
FEATURES BENEFITS
Electronic circuitry with
electromechanical relay
Repeat Accuracy + / - 2%
Knob adjustable
time delay
Guaranteed time range of up to 10 mins in 6 ranges
Isolated 10A, DPDT
output contacts
Allows control of loads for AC or DC voltages
LED indication Provides relay status both during and after timing
Industry standard octal
plug connection
Eliminates need for special connectors
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. Surface
mounted with two #6 screws or snaps onto a
35 mm DIN rail. Uses PSC8 hold-down clips.
PSC8 Hold-down Clips
Securely mounts plug-in controls in any position.
Provides protection against vibration. Use with
NDS-8 Octal Socket. Sold in pairs.
C103PM (AL) DIN Rail
35 mm aluminum DIN rail available in a 36 in.
(91.4 cm) length.
L1 N/L2
8-pin octal DPDT
Ordering Information
MODEL INPUT VOLTAGE ADJUSTMENT TIME DELAY
PRLM41180
120VAC
Fixed 180s
PRLM423
120VAC
Adjustable 1 - 60s
If you don’t find the part you need, call us for a custom product 800-843-8848
Wiring Diagram
8-PIN
