© 2016 Littelfuse Protection Relays & Controls

Time Delay Relays

Dedicated - Delay-on-Make

www.littelfuse.com/krdm

Rev: 1-A-062216

Accessories

P1015-13 (AWG 10/12), P1015-64 (AWG 14/16)

Female Quick Connect

These 0.25 in. (6.35 mm) female terminals are

constructed with an insulator barrel to provide

strain relief.

P1015-18 Quick Connect to Screw Adapter

Screw adapter terminal designed for use with

all modules with 0.25 in. (6.35 mm) male quick

connect terminals.

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.

External Resistance vs.Time Delay

Output Current/Ambient Temperature

Specifications

Time Delay

Range

0.1s - 100m in 5 adjustable ranges or fixed

Repeat Accuracy

±0.5% or 20ms, whichever is greater

Tolerance

Factory Calibration)

≤ ±5%

Recycle Time

≤ 150ms

Time Delay vs Temp.

& Voltage

≤ ±5%

Input

Voltage

12, 24 or 110VDC; 24, 120 or 230VAC

Tolerance

12VDC & 24VAC/DC

-15% - 20%

110VDC 120 & 230VAC

-20% - 10%

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

Power Consumption

AC ≤ 2VA; DC ≤ 2W

Output

Type

Isolated relay contacts

Form

SPDT

Rating (at 40°C)

10A resistive @ 125VAC;

5A resistive @ 230VAC & 28VDC;

1/4 hp @ 125VAC

Max. Switching Voltage

250VAC

Life (Operations)

Mechanical - 1 x 107; Electrical - 1 x 105

Protection

Circuitry

Encapsulated

Isolation Voltage

≥ 1500V RMS input to output

Insulation Resistance

≥ 100 MΩ

Polarity

DC units are reverse polarity protected

Mechanical

Mounting

Surface mount 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 connect terminals

Environmental

Operating/Storage

Temperature

-20° to 60°C / -40° to 85°C

Humidity

95% relative, non-condensing

Weight

≅ 2.6 oz (74 g)

Function Diagram

DELAY-ON-MAKE (ON-DELAY)

V = Voltage

NO = Normally

Open Contact

NC = Normally

Closed Contact

TD =Time Delay

R = Reset

= Undefined

Time

KRDM SERIES