Specifications
Electrical
Input Voltage: 24 to 220V ±10%
Frequency: AC - 50/60Hz
DC - Filtered to Full Wave
Time Delays:
Type: Adjustable, Factory Fixed or Remote
Range: 100 Milliseconds to 5 Minutes
Repeat Accuracy: ±1% with Fixed Conditions
Control Contact Response Times:
During Timing: 135 Milliseconds,Typical
After Timing: 12 Milliseconds, Typical
Protection: Varistor and/or R-C Network
Power Consumption: 5VA
Output Ratings:
Type: Solid State
Form: One Normally Open (1NO, Form A)
Non-Isolated
Rating: 1 Amp Continuous @ 25°C
Resistive: 100%PF
Inductive: 75-80%PF
15 Amps Inrush, Non-repetitive
30 mA to ensure Turn-on
Ordering Information
MSS - 120A - 3 S -
R-K Model
Input Voltages
24D - 24VDC
24A - 24VAC
120A - 120VAC
220A - 220VAC
DIN Rail Bracket #DRB-2
Dimensions
2"
1.63"
5 6
1.2"
2.7"
One Shot
Solid State Timer
Physical
Mounting: Surface, #6 Screws
Termination:
Screw or .25" Push-On Tabs
Packaging: Epoxy Filled
Weight: 4 Oz.
Ambient Temperatures
Operating: 0°C to 65°C
Storage: -30°C to 85°C
Notes:
Remote Timing Resistors - multiples of
2.7 megohms will increase the time
delay by 1 minute ±20%.
For adjustment codes 3 & 4 a jumper or
resistor must be installed across
terminals 5 and 6 to allow the timer to
time out.
(Fixed Time)
Termination
S - Screw Terminals
T - .25" Push-OnTabs
Adjustments
1 - Fixed Internally (Specify time in sec.)
2 - Adjustable .1 to 45 sec. with internal pot.
3 - Adjustable .1 to 300 sec. with remote
resistor and internal pot
4 - Remote timing resistor
Connections
Remote
Timing
Adj.
MS = Load
(Motor
Starter)
C1 = Control
Contact
5 6
1 2 3 4
MSS
• 1 Amp Output, 1NO
• Indicating LED
• Fixed or Adjustable
Delays
• Screw Terminals or
Push-On Tabs
• Voltages from
24 to 220 Volts
• Epoxy Filled
Operation
One Shot
When input voltage is available,
closure of the customer supplied
contact (C1) will energize the load
and begin the timing cycle. At the
end of the timed period, the load will
be de-energized. Closure of the
contact supplying voltage to the MSS
may be maintained, momentary or
repeated. The load will only remain
energized for the time period initiated
by the initial closure of the contact.
The MSS resets when the timed
cycle is complete with the contact
open or the input voltage is removed.
Time
Delay
1 2 3 4
1.4"
–
C1
MS
Load
Input Voltage
+
Load
De-Energized
Contact Closure
(Maintained or Momentary)
4/00
E10
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