LD SERIES
LD SERIES
ADD A WARNING BLINK TO ANY CONTROL
EXTENDED LIGHTING CONTROL LIGHTING DELAY TIME SWITCH
INPUT VOLTAGE: 120/208/240/277VAC, 50/60Hz. TERMINAL RANGE: #10 - #16AWG. OPERATING TEMPERATURE: -22° to 150°F (-30° to +65°C).
ASHRAE 90.1
APPLICATIONS
CONTACT RATINGS
SPECIFICATIONS
POWER CONSUMPTION: 5VA Maximum.
®
®
ENCLOSURE: Metal Indoor NEMA 1 with lockable hasp (see page 153 for dimensions).
®
®
Open offices Gymnasiums Warehouses Outdoor recreation courts User-activated lights with time limits Match with photocontrol and timer to limit hours of use
RATING
TYPE
VOLTAGE
General Purpose Ballast
24/240VAC 277VAC 120VAC 208-277VAC
Tungsten
120-277VAC
5A
3A
Pilot Duty
120-240VAC 27VAC
470VA 690VA
275VA
Resistive
28VDC
20A
10A
NO
NC
20A 20A 20A 10A
10A 3A 10A 3A
WIRING DIAGRAMS LDSH WIRING
LDS WIRING
TORK TIME SWITCH
TORK TIME SWITCH
OUTPUT TERMINALS
OUTPUT TERMINALS OFF
NO
C
OFF
NC
MOMENTARY PUSH-BUTTON SWITCH
C ON OFF DO NOT APPLY VOLTAGE
N
TIME SWITCH INPUT
120
208 240
H
REMOTE INPUT
277 VAC
H C ON OFF DO NOT APPLY
INPUT POWER
VOLTAGE
NO
N
N
C
277 VAC
INPUT POWER
AUX. OUTPUT TERMINALS NC
208 240
120
TIME SWITCH INPUT
MAIN LOAD OUTPUT TERMINALS NC
120 VAC
ON
ON
N
NC
N
N
H
C
MOMENTARY PUSH-BUTTON SWITCH
H
REMOTE INPUT
NO
MAIN LOAD OUTPUT TERMINALS
NO
C
NC
NO
C
H
H
H
AUX LOAD
ORDERING INFO
FEATURES MAINTAINED INPUT WITH LOAD WARNING BLINK: LDS Series controls output load contacts based on power applied to the time switch input contact. At removal of power from the time switch input, LDS Series provides 1 second blink then keeps load contacts closed for an extra 1 or 5 minutes (user selectable) before turn off. MAINTAINED INPUT WITH AUXILARY WARNING: LDSH Series controls output load contacts based on power applied to the time switch input contact. At removal of power from the time switch input, LDSH Series closes a second set of contacts for a user supplied audible or visual warning device. The warning circuit closes for a selected time of 4 seconds (best for audible device or continuous, then keeps load contacts closed for an extra 1 or 5 minutes (user selectable) before turn OFF.
CATALOG NO.
LDS-A LDS LDSH-A LDSH
UPC CODE
81026 81025 81031 81028
INPUT SUPPLY (VAC) 50/60 Hz
120/208-240/277 120/208-240/277 120/208-240/277 120/208-240/277
MOMENTARY INPUT: Provides timed override when time switch input contact is unpowered (timer OFF). When activated during the warning period, load contacts are kept closed and timing starts. Both series can accept momentary input contact closure for ON to start the timing and OFF to end the timing. TIMED OVERRIDE SETTINGS: User may select override times of 1⁄2, 1, 11⁄2, 2, 6, 9, or 12 hours. Warning before OFF is always active after override time.
LOAD
OUTPUT CONTACTS
ENCLOSURE TYPE
SPDT
Metal Indoor NEMA 1
SPDT SPDT SPDT
Mechanism Metal Indoor NEMA 1 Mechanism
N
TORK TIME SWITCH
TORK TIME SWITCH
OUTPUT TERMINALS
OUTPUT TERMINALS OFF
NO
C
OFF
NC
MOMENTARY PUSH-BUTTON SWITCH
VOLTAGE
N
TIME SWITCH INPUT
N
120
208 240
H 120 VAC
REMOTE INPUT
277 VAC
H C ON OFF DO NOT APPLY
INPUT POWER
VOLTAGE
NO
N
N
C
NO
277 VAC
INPUT POWER
AUX. OUTPUT TERMINALS NC
208 240
120
TIME SWITCH INPUT
MAIN LOAD OUTPUT TERMINALS NC
NC
ON
ON
H
C
N
N
C ON OFF DO NOT APPLY
NO
MOMENTARY PUSH-BUTTON SWITCH
H
REMOTE INPUT
N
LOAD
N
MAIN LOAD OUTPUT TERMINALS C
NC
NO
C
H
H
H ON OFF COMMON
AUX LOAD MECHANICALLY HELD CONTACTOR WITH COIL CLEARING CONTACTS
ON
N
MECHANICALLY HELD CONTACTOR WITH COIL CLEARING CONTACTS
OFF COMMON
PHOTOCONTROL
N
N
TORK TIME SWITCH OUTPUT TERMINALS
APPLICATION EXAMPLE
Lighting for a high school’s tennis courts turns on during normal class hours when natural light diminishes using a 7 day time switch and photocell. After 3pm, staff members sometimes use the courts (the time switch is then off). A momentary pushbutton activates the LDSH for timed override of HID lighting. Five minutes before the lights go out, an auxiliary contact flashes an incandescent warning beacon (HID lighting can not be made to blink). Additional timed override can be arranged for via the momentary pushbutton.
APPLICATION WIRING
NO
C
NC
FLASHING LIGHT
H
120V
N
C
ON
H
OFF
N
N
120 208/240277
REMOTE INPUT TIME SWITCH INPUT
MOMENTARY PUSHBUTTON SWITCH
AUXILLARY OUTPUT NO C
LDSH
NC
INPUT POWER N
MAIN LOAD OUTPUT NO C
NC
120V
OFF N ON
H 120V N OFF
SWITCHED CIRCUIT TO TENNIS COURT LIGHTS
ON
N
MECHANICALLY-HELD 4 POLE LIGHTING CONTACTOR
SWITCHED CIRCUIT TO TENNIS COURT LIGHTS
480V CIRCUITS FROM PANEL
DIGITAL CONTROLS TORK 83
A DIVISION OF NSi INDUSTRIES, LLC USA • 800.321.5847 • www.nsiindustries.com
TORK 84
ADD A WARNING BLINK TO ANY CONTROL
EXTENDED LIGHTING CONTROL LIGHTING DELAY TIME SWITCH
INPUT VOLTAGE: 120/208/240/277VAC, 50/60Hz. TERMINAL RANGE: #10 - #16AWG. OPERATING TEMPERATURE: -22° to 150°F (-30° to +65°C).
ASHRAE 90.1
APPLICATIONS
CONTACT RATINGS
SPECIFICATIONS
POWER CONSUMPTION: 5VA Maximum.
®
®
ENCLOSURE: Metal Indoor NEMA 1 with lockable hasp (see page 153 for dimensions).
®
®
Open offices Gymnasiums Warehouses Outdoor recreation courts User-activated lights with time limits Match with photocontrol and timer to limit hours of use
RATING
TYPE
VOLTAGE
General Purpose Ballast
24/240VAC 277VAC 120VAC 208-277VAC
Tungsten
120-277VAC
5A
3A
Pilot Duty
120-240VAC 27VAC
470VA 690VA
275VA
Resistive
28VDC
20A
10A
NO
NC
20A 20A 20A 10A
10A 3A 10A 3A
WIRING DIAGRAMS LDSH WIRING
LDS WIRING
TORK TIME SWITCH
TORK TIME SWITCH
OUTPUT TERMINALS
OUTPUT TERMINALS OFF
NO
C
OFF
NC
MOMENTARY PUSH-BUTTON SWITCH
C ON OFF DO NOT APPLY VOLTAGE
N
TIME SWITCH INPUT
120
208 240
H
REMOTE INPUT
277 VAC
H C ON OFF DO NOT APPLY
INPUT POWER
VOLTAGE
NO
N
N
C
277 VAC
INPUT POWER
AUX. OUTPUT TERMINALS NC
208 240
120
TIME SWITCH INPUT
MAIN LOAD OUTPUT TERMINALS NC
120 VAC
ON
ON
N
NC
N
N
H
C
MOMENTARY PUSH-BUTTON SWITCH
H
REMOTE INPUT
NO
MAIN LOAD OUTPUT TERMINALS
NO
C
NC
NO
C
H
H
H
AUX LOAD
ORDERING INFO
FEATURES MAINTAINED INPUT WITH LOAD WARNING BLINK: LDS Series controls output load contacts based on power applied to the time switch input contact. At removal of power from the time switch input, LDS Series provides 1 second blink then keeps load contacts closed for an extra 1 or 5 minutes (user selectable) before turn off. MAINTAINED INPUT WITH AUXILARY WARNING: LDSH Series controls output load contacts based on power applied to the time switch input contact. At removal of power from the time switch input, LDSH Series closes a second set of contacts for a user supplied audible or visual warning device. The warning circuit closes for a selected time of 4 seconds (best for audible device or continuous, then keeps load contacts closed for an extra 1 or 5 minutes (user selectable) before turn OFF.
CATALOG NO.
LDS-A LDS LDSH-A LDSH
UPC CODE
81026 81025 81031 81028
INPUT SUPPLY (VAC) 50/60 Hz
120/208-240/277 120/208-240/277 120/208-240/277 120/208-240/277
MOMENTARY INPUT: Provides timed override when time switch input contact is unpowered (timer OFF). When activated during the warning period, load contacts are kept closed and timing starts. Both series can accept momentary input contact closure for ON to start the timing and OFF to end the timing. TIMED OVERRIDE SETTINGS: User may select override times of 1⁄2, 1, 11⁄2, 2, 6, 9, or 12 hours. Warning before OFF is always active after override time.
LOAD
OUTPUT CONTACTS
ENCLOSURE TYPE
SPDT
Metal Indoor NEMA 1
SPDT SPDT SPDT
Mechanism Metal Indoor NEMA 1 Mechanism
N
TORK TIME SWITCH
TORK TIME SWITCH
OUTPUT TERMINALS
OUTPUT TERMINALS OFF
NO
C
OFF
NC
MOMENTARY PUSH-BUTTON SWITCH
VOLTAGE
N
TIME SWITCH INPUT
N
120
208 240
H 120 VAC
REMOTE INPUT
277 VAC
H C ON OFF DO NOT APPLY
INPUT POWER
VOLTAGE
NO
N
N
C
NO
277 VAC
INPUT POWER
AUX. OUTPUT TERMINALS NC
208 240
120
TIME SWITCH INPUT
MAIN LOAD OUTPUT TERMINALS NC
NC
ON
ON
H
C
N
N
C ON OFF DO NOT APPLY
NO
MOMENTARY PUSH-BUTTON SWITCH
H
REMOTE INPUT
N
LOAD
N
MAIN LOAD OUTPUT TERMINALS C
NC
NO
C
H
H
H ON OFF COMMON
AUX LOAD MECHANICALLY HELD CONTACTOR WITH COIL CLEARING CONTACTS
ON
N
MECHANICALLY HELD CONTACTOR WITH COIL CLEARING CONTACTS
OFF COMMON
PHOTOCONTROL
N
N
TORK TIME SWITCH OUTPUT TERMINALS
APPLICATION EXAMPLE
Lighting for a high school’s tennis courts turns on during normal class hours when natural light diminishes using a 7 day time switch and photocell. After 3pm, staff members sometimes use the courts (the time switch is then off). A momentary pushbutton activates the LDSH for timed override of HID lighting. Five minutes before the lights go out, an auxiliary contact flashes an incandescent warning beacon (HID lighting can not be made to blink). Additional timed override can be arranged for via the momentary pushbutton.
APPLICATION WIRING
NO
C
NC
FLASHING LIGHT
H
120V
N
C
ON
H
OFF
N
N
120 208/240277
REMOTE INPUT TIME SWITCH INPUT
MOMENTARY PUSHBUTTON SWITCH
AUXILLARY OUTPUT NO C
LDSH
NC
INPUT POWER N
MAIN LOAD OUTPUT NO C
NC
120V
OFF N ON
H 120V N OFF
SWITCHED CIRCUIT TO TENNIS COURT LIGHTS
ON
N
MECHANICALLY-HELD 4 POLE LIGHTING CONTACTOR
SWITCHED CIRCUIT TO TENNIS COURT LIGHTS
480V CIRCUITS FROM PANEL
DIGITAL CONTROLS TORK 83
A DIVISION OF NSi INDUSTRIES, LLC USA • 800.321.5847 • www.nsiindustries.com
TORK 84
