Brochure
Mechanical Time Switches
Mechanical Time Switches
34
7-Day
T50000B Series
7-Day Mechanical
These mechanical time switches enable dusk-to-dawn operations as
well as dusk ON and xed time OFF operations. These units come in
either 2 or 3-circuit congurations and provide a carry-over of at least
16 hours in case of power outages, reducing maintenance. These time
switches can handle up to 15 A of electrical loads per circuit, have
separate terminals for powering the clock motor, and come equipped
with a photocontrol.
Applications
• Exterior sign lighting • Façade lighting • Exterior lighting
• Other types of outdoor lighting
Features
• Includes photocontrol initiated/time switch terminated control
• Enable different ON/OFF programs each day of the week
• Recommended for applications needing to turn a load ON at dusk
and OFF at a preset time
• Minimum of 16-hour carry-over for maintaining preset schedules
during power failures
• Carry-over automatically rewinds when power resumes
• Only one hour of rewinding time required for every two hours of
power outage
• Light level adjustment
• Single pole double throw switches and manual circuit
bypass switches
• Controls the contactor coil circuit only
• Type 1 rated indoor metal enclosure
T51311BC
Includes K4121
Photocontrol
Model # Circuits Input Voltage
T51211BC
2 120 VAC, 60 Hz
T51311BC
3 120 VAC, 60 Hz
Note: All models have separate clock motor terminals for switching circuits
not on line voltage. They may be used with 24 V systems if wired in
accordance with NEC regulations.
Recommended to control the coil of a lighting contactor.
Accessories/Replacement
Extra/replacement trippers, set of 7 ON/OFF 156T2548A
12 7/8"
8 15/16"
1 5/8"
4"
9 3/4"
(2) KNOCKOUT
1/2" & 3/4"
Dimensions
Ratings
Resistive 15 A, 120-250 VAC
Tungsten 150 W, 120 VAC
Pilot Duty 420 VA, 120 VAC
Motor
1
⁄2 HP, 125-250 VAC
Max Power Consumption 3 W
Operating Temperature -40º F to 130º F (-40º C to 54º C)
Enclosure Dimensions
H x W x D
12
7
⁄8" x 8
15
⁄16" x 4"
(327 mm x 227 mm x 101.6 mm)
Knockout Dimensions
Side/Back (1) ½" and ¾" combination
Bottom (2) ½", ¾" and 1" combination
Wire Size #10 - #18 AWG
Warranty 1-year