Time Delay Relays
Dedicated - Recycle
RS SERIES
Description
The RS Series is a solid-state, encapsulated, recycling timer
designed for tough industrial environments. It is used by many
testing labs as a life cycle tester; by others as a cycle controller.
The RS Series has separate DIP switch adjustments for the
on delay and the off delay. These make accurate adjustment
possible the first time, every time. Time delays of 0.1 seconds
to 1023 hours are available in 4 ranges.
Operation (Recycling - ONTime First)
Upon application of input voltage, the output energizes and
theT1 ON time begins. At the end of the ON time, the output
de-energizes and theT2 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 ON time.
Wiring Diagram
Operation (Recycling - OFFTime First)
L1
N/L2
Upon application of input voltage, theT2 OFF time begins. At
the end of the OFF time, the output energizes and theT1 ON
time begins. At the end of the ON time, the output de-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 OFF time.
V = Voltage
L = Load
Features & Benefits
FEATURES
BENEFITS
Repeat Accuracy + / -0.1%,
Setting accuracy + / - 2%
Microcontroller based
1A steady, 10A inrush
solid-state output
Provides 100 million operations in typical conditions
No moving parts to arc and wear out over time and
encapsulated to protect against shock, vibration,
and humidity
Totally solid state
and encapsulated
ON and OFF time
delay settings
Independent adjustment provides greater
timing flexibility
DIP switch adjustment
Provides first time setting accuracy
Ordering Information
INPUT
FIRST
INPUT
MODEL
FIRST
MODEL
RS1A11
RS2B44
RS4A11
RS4A12
RS4A13
T1 ON TIME
T2 OFF TIME
T1 ON TIME
T2 OFF TIME
VOLTAGE
DELAY
VOLTAGE
DELAY
0.1 - 102.3s in
0.1s increments
0.1 - 102.3s in
0.1s increments
0.1 - 102.3m in
0.1 - 102.3m in
12VDC
24VAC
On time
Off time
On time
On time
On time
RS4A22
RS4A24
RS4A33
RS4B12
RS6A13
120VAC
120VAC
120VAC
120VAC
230VAC
On time
On time
On time
Off time
On time
0.1m increments 0.1m increments
1 - 1023h in
1h increments
1 - 1023h in
1h increments
0.1 - 102.3m in
1 - 1023h in
0.1m increments 1h increments
0.1 - 102.3s in
0.1s increments
0.1 - 102.3s in
0.1s increments
1 - 1023m in
1m increments
1 - 1023m in
1m increments
120VAC
120VAC
120VAC
0.1 - 102.3s in
0.1s increments
0.1 - 102.3m in
0.1m increments
0.1 - 102.3s in
0.1 - 102.3m in
0.1s increments 0.1m increments
0.1 - 102.3s in
0.1s increments
1 - 1023m in
1m increments
0.1 - 102.3s in
1 - 1023m in
0.1s increments 1m increments
If you don’t find the part you need, call us for a custom product 800-843-8848
© 2016 Littelfuse Protection Relays & Controls
www.littelfuse.com/rs
Rev: 1-A-061016