© 2016 Littelfuse Protection Relays & Controls

Time Delay Relays

Dedicated - Delay-on-Make

www.littelfuse.com/th1

Rev: 1-A-062216

Selection Guide

Function Diagram

DELAY-ON-MAKE (ON-DELAY)

V = Voltage

NO = Normally

Open Contact

NC = Normally

Closed Contact

TD =Time Delay

R = Reset

= Undefined

Time

Specifications

Time Delay

Range

0.1 - 600s in 4 adjustable ranges or fixed

Repeat Accuracy

±2% or 20ms, whichever is greater

Tolerance

(Factory Calibration)

≤ ± 5%

Time Delay vs Temp.

& Voltage

≤ ±10%

Recycle Time

≤ 150ms

Input

Voltage

24, 120, or 230VAC

Tolerance

±15%

AC Line Frequency

50/60 Hz

Power Consumption

≤ 2VA

Output

Type

Solid state

Form

NO, open during timing

Maximum Load Currents

Output

Steady State

Inrush**

A

6A

60A

B

10A

100A

C

20A

200A

Minimum Load Current

100mA

Voltage Drop

≅ 2.5V at rated current

OFF State Leakage Current

≅ 5mA @ 230VAC

Protection

Circuitry

Encapsulated

Dielectric Breakdown

≥ 2000V RMS terminals to mounting surface

Insulation Resistance

≥ 100 MΩ

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 38.4 mm (1.51”)

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

≅ 3.9 oz (111 g)

**Must be bolted to a metal surface using the included heat sink compound. The maximum

mounting surface temperature is 90°C. Inrush: Non-repetitive for 16ms.

TH1 SERIES