ES-1966 Rev.5
L3PK
Power Transducer Series L-UNIT
TRIPLE AC VOLTAGE TRANSDUCER
Functions & Features
• Converting an alternating voltage from a potential (voltage) transformer into a standard process signal
• 3 transducers housed in one enclosure
• Minimum ripple
• Isolation up to 2000 V AC
• Highdensity mounting
Typical Applications
• Centralized monitoring and control of power line and power supply voltages measured at switch boards
• Monitoring abnormal voltage drops for detecting overload
MODEL: L3PK–[1][2]–[3][4]
ORDERING INFORMATION
• Code number: L3PK–[1][2]-[3][4]
Specify a code from below for each of [1] through [4].
(e.g. L3PK-5A-K3/Q)
• Special output range (For codes Z & 0)
• Specify the specification for option code /Q
(e.g. /C01/S01)
[1] INPUT
Voltage
5
: 0 – 150 V AC
6
:
0 - 300 V AC
[2] OUTPUT
Current
A:
4 – 20 mA DC (Load resistance 500 Ω max.)
D
: 0 – 20 mA DC(Load resistance 500 Ω max.)
E
: 0 – 16 mA DC (Load resistance 625 Ω max.)
F
: 0 – 10 mA DC (Load resistance 1000 Ω max.)
G
: 0 – 1 mA DC (Load resistance 10 kΩ max.)
J
: 0 – 5 mA DC (Load resistance 2000 Ω max.)
Z
: Specify current (See OUTPUT SPECIFICATIONS)
Voltage
1
: 0 – 10 mV DC (Load resistance 10 kΩ min.)
2
: 0 – 100 mV DC (Load resistance 100 kΩ min.)
3
: 0 – 1 V DC (Load resistance 1000 Ω min.)
4
: 0 – 10 V DC (Load resistance 10 kΩ min.)
5
: 0 – 5 V DC (Load resistance 5000 Ω min.)
6
: 1 – 5 V DC (Load resistance 5000 Ω min.)
0
: Specify voltage (See OUTPUT SPECIFICATIONS)
[3] AUXILIARY POWER SUPPLY
AC Power
K3
: 100 – 120V AC
(Operational voltage range 85 - 132 V, 47 - 66 Hz)
L3
: 200 – 240V AC
(Operational voltage range 170 - 264 V, 47 - 66 Hz)
DC Power
R
: 24 V DC
(Operational voltage range 24 V ±10 %, ripple 10 %p-p max.)
V:
48 V DC
(Operational voltage range 48 V ± 10 % , ripple 10 % p-p max.)
[4] OPTIONS
blank
: none
/Q
: With options (specify the specification)
SPECIFICATIONS OF OPTION: Q (multiple selections)
COATING (For the detail, refer to our web site.)
/C01
: Silicone coating
/C02
: Polyurethane coating
/C03
: Rubber coating
TERMINAL SCREW MATERIAL
/S01
: Stainless steel
GENERAL SPECIFICATIONS
Construction
: Stand-alone; terminal access at the front
Connection
: M3.5 screw terminals (torque 0.8 N·m)
Screw terminal
: Nickel-plated steel (standard) or stainless steel
Housing material
: Flame-resistant resin (black)
Isolation
: Input to output to auxiliary power, between the outputs
Input waveform
RMS sensing
: Up to 5 % of 3rd harmonic content
Overrange output
: 0 to 120 % at 1 – 5 V
Zero adjustment
: -5 to +5 % (front)
Span adjustment
: 95 to 105 % (front)
INPUT SPECIFICATIONS
Frequency
: 50 or 60 Hz
Input burden
: 0.3 VA per channel
Overload capacity
: 150 % of rating for 10 sec., 120 % continuous
Operational range
: 0 – 120 % of rating
OUTPUT SPECIFICATIONS
■ DC Current
: 0 – 20 mA DC
Minimum span
: 1 mA
Offset
: Max. 1.5 times span
Load resistance
: Output drive 10 V max.
■
DC Voltage
: 0 – 12 V DC
Minimum span
: 5 mV
Offset
: Max. 1.5 times span
Load resistance
: Output drive 1 mA max.; at ≥ 0.5 V
INSTALLATION
Power consumption
•
AC
: Approx. 3.5 VA
•
DC
: Approx. 3.5 W (146 mA at 24 V)
Operating temperature
: -10 to +55°C (14 to 131°F)
Operating humidity
: 30 to 85 %RH (non-condensing)
Mounting
: Surface or DIN rail
Weight
: 400 g (0.88 lb)
PERFORMANCE in percentage of span
Accuracy
: ±0.5 % (at 23°C ±10°C or 73.4°F ±18°F,
45 – 65 Hz)
Response time
: ≤ 1 sec. (0 – 100 % ±1 %)
Ripple
: 0.5 %p-p max.
Line voltage effect
: ±0.25 % over voltage range
Insulation resistance
: ≥ 100 MΩ with 500 V DC
Dielectric strength
: 2000 V AC @ 1 minute
(input to output to auxiliary power to ground, between the outputs)
Impulse withstand voltage
: 1.2 / 50 μsec., ±5 kV
(input to output or ground)
CONNECTION DIAGRAM
EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]
MOUNTING REQUIREMENTS unit: mm [inch]