© 2016 Littelfuse Protection Relays & Controls

Time Delay Relays

Dedicated - Single Shot

www.littelfuse.com/prs65

Rev: 1-A-062716

PRS65

Single ShotTimer

Wiring Diagram

Description

The PRS65 is a single shot time delay relay for use on non-

critical timing applications. The knob adjustable time delay

carries a guaranteed time range of up to 8 minutes.

Operation

Power must be applied to the input at all times prior to and

during timing. Upon closure of the initiate switch (momentary

or maintained) the output contacts transfer and the time delay

is initiated. At the end of the delay interval, the output contacts

revert to their original position. If the initiate switch is reclosed

during timing, the time delay will not be affected.

Features & Benefits

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Electronic Circuit with Electromechanical Relay

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Popular Operating Voltages

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Octal Plug-in

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Hold Down Clamps Available

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 (M 3.5 x 0.6) screws or

snaps onto a 35 mm DIN rail. Uses PSC8 hold-

down clips.

3

INITIATE

INPUT

VOLTAGE

OCTAL, SPDT

4

5

6

7

8

1

2

Specifications

Time Delay

Type

Analog circuitry

Range

7 to 480 seconds

Repeat Accuracy

±2% under fixed conditions

Tolerance

Knob adjustable: guaranteed range

Reset Time

80ms max.

Recycle Time

After Timing

16ms max.

During Timing

0.1% of max. time delay or 75ms, whichever

is greater

Time Delay vs. Temp.

& Voltage

15% max.

Input

Voltage

230VAC, nominal

Tolerance

±15% of nominal

AC Line Frequency

50/60 Hz

Output

Type

Relay

Form

Single Pole, Double Throw

Rating

10 amperes resistive at 240VAC

Protection

Transient

±1500 volts for 150 microseconds

Dielectric Breakdown

≥1500 V rms min. at 60 Hz between input and

output terminals

Mechanical

Mounting

Plug in (hold-down clips for panel mounting

also available)

Termination

Standard Octal Plug-in

Dimensions

H 92.2 mm (3.63”); W 60.45 mm (2.38”);

D 44.45 mm (1.75”)

Environmental

Operating/Storage

Temperature

-20° to 65°C / -30° to 85°C

Humidity

95% relative, non-condensing

Weight

Approx. 6 oz (170 g)

8-PIN