© 2016 Littelfuse Protection Relays & Controls

Time Delay Relays

Dedicated - Interval

www.littelfuse.com/erdi

Rev: 1-A-061016

ERDI SERIES

Description

Econo-Timers are a combination of digital electronics and

an electromechanical relay. DPDT relay output for relay

logic circuits, and isolation of input to output voltages. For

applications, such as interval on, pulse shaping, minimum run

time, etc. The ERD Series is encapsulated to protect the

circuitry from shock, vibration and humidity.

Operation (Interval)

Upon application of input voltage, time delay begins, and output

relay energizes. At the end of time delay, output de-energizes

until input voltage is removed.

Reset: Removing input voltage resets the time delay and

the output.

Operation (Single Shot)

Input voltage must be applied before and during timing. Upon

momentary or maintained closure of initiate switch, output

relay energizes for time delay. At the end of the delay, output

de-energizes. Opening or reclosing initiate switch during timing

has no affect on time delay. Output will energize if initiate switch

is closed when input voltage is applied.

Reset: Reset occurs when time delay is complete & initiate

switch is opened. Loss of input voltage resets time delay

and output.

Features & Benefits

FEATURES

BENEFITS

Digital integrated

circuitry

Repeat Accuracy + / - 0.5%,

Factory calibration +/ - 10%

Isolated, 10A, DPDT

output contacts

Allows control of loads for AC or DC voltages

Encapsulated

Protects against shock, vibration, and humidity

Accessories

P1004-16, P1004-16-X Versa-Pot

Panel mountable, industrial potentiometer

recommended for remote time delay adjustment.

P0700-7 Versa-Knob

Designed for 0.25 in (6.35 mm) shaft of

Versa-Pot. Semi-gloss industrial black finish.

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.

Ordering Information

MODEL

INPUT VOLTAGE

ADJUSTMENT

TIME DELAY

ERDI436

120VAC

External

0.6 - 60s

ERDI6210

230VAC

Onboard

1 - 100m

If you don’t find the part you need, call us for a custom product 800-843-8848

Wiring Diagram

2-3 & 7-6 are Normally Open Contacts (NO)

2-4 & 7-5 are Normally Closed Contacts (NC)

L1

N/L2

L1

N/L2

INTERVAL

SINGLE SHOT

L1

N/L2

L1

N/L2