TEMPERATURE and TIME CONTROL
Tel: 1-866-829-4253
info@keracontrols.com
Tel: 1-866-829-4253
info@keracontrols.com
Model series SD-4PB
With external temperature sensor
Models for 120Vac, 208-250Vac,
12V and 24V AC/DC
Output load : up to 60 Amp / 250Vac.
Optional Remote Control + Display Panel
Temperature range: -40F (-40C ) to 255F ( 124C )
Higher ranges available up to 960F ( 515C )
Timer range: Seconds, Hours, Minutes or Days
Heating and/or Cooling modes
Up to 9 push-buttons:
1. CONTROL ON/OFF
2. TIME UP
3. TIME DOWN
4. TEMPERATURE UP
5. TEMPERATURE DOWN
6. USER PRESET or FAN ( optional relay contact )
7. LIGHT ON / OFF ( optional relay contact )
8. RADIO / CD ON / OFF ( optional relay contact )
9. Preheat or DELAY-BEFORE-START up to 100 hrs
Example Installation
in 3-gang wiring box
Black, White or Custom
labels available
Metal Face
Dim's: 6.5" x 4.5" x 0.3"
165mm x 115mm x 8mm
NO POWER BOX needed for most applications
MULTIPLE APPLICATIONS:
Optional Plate-Guard
for standard sensor probes.
Plastic model PPP-4
and SS model PPS-4
Optional Plastic Guard
for standard sensor probes.
Model PG-5
Extended SD-4PB Sauna Control wiring
with contactor
for very high loads
Simple SD-4PB Sauna Control wiring
for up to 30 Amps load
SD-4PB Sauna Control wiring
with additional
light or fan control
Extended SD-4PB Sauna Control wiring
for up to 60 Amps
loads in two banks
Download Controller Specifications Sheet
SD-4PB is a digital temperature and time controller designed for Heating and/or Cooling.
It has an internal, accurate, programmable thermostat processor, that is self-calibrating and does not require any maintenance or adjustments.
The internal, programmable timer allows the user to set the thermostat to operate for a preset period of time, depending upon the model; in seconds, minutes, hours or days.
While the timer is running, the thermostat controls the on-board relays.
Standard models have two on-board, high power relays with contacts rated for up to 30Amp, 250Vac load max. each. Optionally an internal alarm buzzer or up to two additional relays can be ordered for special applications to control loads of up to 10Amp, 250Vac max. each.
The high power and the optional relays' contacts can be wired up to control Heaters, HVAC and other loads like a Fan, Motor, Pump, etc...
All relays' contacts can be wired up as completely isolated from the controller's supply, so the supply voltage can be different than the voltages on the loads.
In order to switch very high loads, the relays' contacts can be wired up to control the coils of external contactors.
An additional, dry contact input can be ordered for external Start/Stop control switch or other applications, like for instance a water level sensor switch.
Also, an additional, low voltage output can be ordered for max. load of up to 30mA, 5Vdc, for instance to connect to an external LED indicator lamp.
The controller is operated and the temperature and timer are preset by pressing the corresponding keys
on the control panel face. The preset values are stored in internal memory.
A variety of the controller's operating configurations, temperature and timer ranges and limits are also programmable via the face plate keys.
In customized face plates the controller can have up to 9 push-buttons.
The 6-digit LED display shows the temperature and timer preset values, the
current temperature, the timer count, and other indications of operation. The LED display can be ordered in RED, GREEN or BLUE color.
Another option is an external Remote Control and Display Panel ( SDR-4PB ) that can be connected to the main panel via a 4- or 2-conductor cable up to 500 ft ( 150M ) away.
Note, that the SD-4PB controllers are designed to eliminate almost completely the EMF ( Electro Magnetic Field ) radiation.
