OA-70 SELCO, OA-70 Datasheet - Page 52

• Manufacturer Part Number: OA-70
• Description: Disc Thermostat; 1/2 in; opens 70 degF; auto reset 50 degF; surface mt, sol tabs
• Manufacturer: SELCO

Specifications of OA-70

• Body Style: Disc
• Brand/series: OA
• Current Rating: 15⁄10 A
• Dielectric Rating: 1500 VAC per 1 Minute
• Dimensions: 1.18 in. L × 0.570 in. W × 0.395 in. H
• Function: Thermostat
• Mounting Style: Surface Mount
• Output: NC
• Primary Type: Thermostat
• Resistance, Insulation: 100 Megohms
• Standards: UL & cUL Listed, CSA Certified, VDE Approved
• Technology: Thermal Conductive
• Termination: Solder
• Thermostat Type: Disc
• Voltage, Supply: 250 VAC

BENEFITS
FEATURES
Model 2831 is a dual range timer and is also designed to be
a plug-in replacement for Model 2577 Teachme Timer. Both
timing ranges are programmed by example. For instance, if
you are filling a glass with liquid, just fill the glass once while
in program mode, and the time will be remembered (even if
power is removed) until it is reprogrammed. An optional panel
mount LED indicates that dispensing is in progress. The start
button can either be connected to the AC line for 110/220 VAC
activation or if low voltage is desired, the button can be
connected straight to the board.
Application examples: coffee brewing, cheese and chemical
dispensing
Optional flowmeter support for volume instead of time mode
Easy-to-use and program
Dual range programmable timer
Optional indicating panel mount LED
A variety of power inputs and outputs
Maintains memory (time is saved during power loss)
UL approved file #: E70766
Dual teachable time settings
Time setting is done by example
Ideal for timed food or liquid dispensing
Two different start modes, (Isolated) AC activation or panel
push button
[phone]
I t i s t h e c u s t o m e r ’s s o l e r e s p o n s i b i l i t y t o s p e c i f y a n d d e t e r m i n e t h e s u i ta b i l i t y o f a pa r t i c u l a r
c o n t r o l o r c o m p o n e n t b a s e d o n t h e i r u n i q u e i n d i v i d u a l a p p l i c a t i o n s a n d r e q u i r e m e n ts
[phone]
P r o g r a m m a b l e Ti m e r
www.selcoproducts.com
FAX [phone]
M o d e l 2 8 3 1
Input Power
Input/Output Power
Connections
Input Signals
Input Signal Connections
Outputs
Control Logic
Timing Range
Timing Resolution
Timing Repeatability
Mechanical
Maximum Operating
Environmental Temperature
Options
1 = 115VAC; 50/60Hz
2 = 230VAC; 50/60Hz
3 = 208VAC; 50/60Hz
4 = User Selectable - 115/230VAC; 50/60Hz
5 = 24VAC/VDC
0 = SSR output
1 = Relay output committed to input voltage connection
1 = 10 Amps Electromechanical (SPDT)*
4 = 1 Amp onboard SSR**
1 = Standard time
2 = Pulse - type flowmeter
** 6 Amps maximum or 1 Amp average current
* Maximum DC switching voltage 100VDC at 5 Amps
Control Type
Input Voltage Options
Output Type
Output Connection
E-mail: [e-mail]
MADE IN THE USA
SPECIFICATIONS
ORDERING MAP
Selection either by fixed factory setting or
jumper selectable field setting
Amp Part #: 770968-1, Type 4 pin PCB mount
connector (Amp Mating Plug #: 172167-1,
Pins #: 77098-1)
AC start, cycle select, program, alternate start
0.1” Molex IDC type 4 pin connector
Connects up to 10A load to input power
Two separately teachable timers with one start
switch and one timing select switch
0.050 seconds to 54 minutes
Other timing ranges available
0.050 seconds
1%
Overall dimensions: 2.35” W x 3.6” L x 1.5” D
Four standoffs are included to mount in 0.156”
mounting holes. Mounting footprint is for
1.75” x 3.0” mounting dimensions.
+30ºF to 158ºF; 0 to 90%RH, non-condensing
Conformal coating
2831 - X X X X