© 2016 Littelfuse Protection Relays & Controls

www.littelfuse.com/

Rev: 1-A-062216

Time Delay Relays

Dedicated - Delay-on-Make

www.littelfuse.com/ksps

Accessories

C103PM (AL) DIN Rail

35 mm aluminum DIN rail available in a 36 in.

(91.4 cm) length.

P1023-20 DIN Rail Adapter

Allows module to be mounted on a 35 mm DIN

type rail with two #10 screws.

Specifications

Time Delay

Type

Microcontroller circuitry

Range

0.1s - 1000h in 9 adjustable ranges or fixed

Repeat Accuracy

±0.5% or 20ms, whichever is greater

Tolerance

(Factory Calibration)

≤ ±2%

Reset Time

≤ 150ms

Initiate Time

≤ 20ms; ≤ 1500 operations per minute

Time Delay vs Temp.

& Voltage

≤ ±2%

Input

Voltage

12 to 120VDC; 24 to 240VAC

Tolerance

≤ ±15%

AC Line Frequency/DC Ripple 50/60Hz / ≤ 10%

Power Consumption

AC ≤ 2VA; DC ≤ 1W

Output

Type

Solid-state output

Rating

1A steady, 10A inrush for 16ms

Voltage Drop

AC ≅ 2.5V @ 1A; DC ≅ 1V @ 1A

OFF State Leakage Current

AC ≅ 5mA @ 240VAC, DC≅ 1mA

Protection

Circuitry

Encapsulated

Dielectric Breakdown

≥ 2000V RMS terminals to mounting surface

Insulation Resistance

≥ 100 MΩ

Polarity

DC units are reverse polarity protected

Mechanical

Mounting

Surface mt. with one #10 (M5 x 0.8) screw

Dimensions

H 50.8 mm (2.0”); W 50.8 mm (2.0”);

D 30.7 mm (1.21”)

Termination

0.25 in. (6.35 mm) male quick connects

Environmental

Operating/Storage

Temperature

-40° to 60°C / -40° to 85°C

Humidity

95% relative, non-condensing

Weight

≅ 2.4 oz (68 g)

KSPS SERIES

Timer Functions

Operation (Delay-on-Make)

Upon application of the input voltage, the dime delay begins.

The output relay is de-energized before and during the time

delay. At the end of the time delay, the put energizes and

remains energized until input voltage is removed.

Reset: Removing input voltage resets the time delay and output.

Operation (Delay-on-Break)

Input voltage must be applied before and during timing. Upon

closure of the initiate switch, the output relay energizes. The

time delay begins when the initiate switch is opened. The output

remains energized during timing. At the end of the time delay,

the output de-energizes. The output will energize if the initiate

switch is closed when input voltage is applied.

Reset: Re-closing the initiate switch during timing resets the time

delay. Removing input voltage resets the time delay and output.

Operation (Recycling)

Upon application of input voltage, the output relay energizes

and the ON time begins. At the end of the ON time, the output

de-energizes and the OFF time begins. At the end of the OFF

time, the output energizes and the cycle repeats as long as

input voltage is applied.

Reset: Removing input voltage resets the output and time

delays, and returns the sequence to the first delay.

DELAY-ON-MAKE (ON-DELAY)

V = Voltage

NO = Normally

Open Contact

NC = Normally

Closed Contact

TD =Time Delay

R = Reset

= Undefined

Time

DELAY-ON-BREAK (OFF-DELAY)

V = Voltage

S1 = Initiate Switch

NO = Normally

Open Contact

NC = Normally

Closed Contact

TD =Time Delay

t = Incomplete

Time Delay

R = Reset

= Undefined

Time

RECYCLING (ON FIRST)

V = Voltage

NO = Normally

Open Contact

NC = Normally

Closed Contact

TD1,TD2 =Time Delay

R = Reset