Time Delay Relays
Dedicated - Recycle
ERD3425A
Description
Econo-Timers are a combination of digital electronics and a
reliable electromechanical relay. DPDT relay output for relay logic
circuits, and isolation of input to output voltages. Cost effective
for OEM applications, such as duty cycling, drying, washing,
signaling, and flashing.
Operation (Recycling - ON Time First)
Upon application of input voltage, the output relay energizes and
the T1 ON time begins. At the end of the ON time, the output
de-energizes and the T2 OFF time begins. At the end of the OFF
time, the output relay 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.
Features & Benefits
FEATURES
Digital integrated
circuitry
Isolated, 10A, DPDT
output contacts
BENEFITS
Repeat Accuracy + / - 0.5%,
Factory calibration + / - 10%
Allows control of loads for AC or DC voltages
Protects against shock, vibration, and humidity
Wiring Diagram
L1
N/L2
Encapsulated
Accessories
P1004-16, P1004-16-X Versa-Pot
Panel mountable, industrial potentiometer
recommended for remote time delay adjustment.
A knob, or terminals 9 &10
are only included on
adjustable units.
Relay contacts are isolated.
R
T
is used when external
adjustment is ordered.
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.
© 2016 Littelfuse Protection Relays & Controls
www.littelfuse.com/erd3425A
Rev: 1-A-061016
Time Delay Relays
Dedicated - Recycle
ERD3425A
Selection Guides
Specifications
Time Delay
Type
Range
Adjustment
Repeat Accuracy
Tolerance
(Factory Calibration)
Reset Time
Time Delay vs Temp.
& Voltage
Input
Voltage
Tolerance
12VDC & 24VDC/AC
120VAC/DC & 230VAC
AC Line Frequency
Output
Type
Form
Rating
Life
Protection
Isolation Voltage
Insulation Resistance
Polarity
Mechanical
Mounting
Dimensions
Digital integrated circuitry
0.1s - 500m in 11 adjustable ranges
0.1s - 1000m fixed
Knob, external adjust, or fixed
±0.5%
≤ ±10%
≤ 150ms
≤ ±2%
12, 24, or 120VDC; 24, 120, or 230VAC
-15% - 20%
-20% - 10%
50/60 Hz
Isolated relay contacts
DPDT
10A resistive @ 120/240VAC & 28VDC;
1/3 hp @ 120/240VAC
Mechanical - 1 x 10
7
; Electrical - 1 x 10
6
≥ 1500V RMS input to output
≥ 100 MΩ
DC units are reverse polarity protected
Surface mount with two #6 (M3.5 x 0.6) screws
H
88.9 mm (3.5”);
W
63.5 mm (2.5”);
D
43.2 mm (1.7”)
0.25 in. (6.35 mm) male quick connect terminals
Function Diagram
RECYCLING (ON FIRST)
V = Voltage
NO = Normally
Open Contact
NC = Normally
Closed Contact
TD1, TD2 = Time Delay
R = Reset
Termination
Environmental
Operating/Storage
Temperature
Weight
-40° to 65°C / -40° to 85°C
≅
5.7 oz (162 g)
© 2016 Littelfuse Protection Relays & Controls
www.littelfuse.com/erd3425A
Rev: 1-A-061016
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
Littelfuse
:
ERD3425A
