MODEL: LTRPN
2: 220 V AC
Power Transducer Series LT-UNIT
4: 220 V / 380 V AC (3-phase/4-wire only)
VAR TRANSDUCER
(self-powered)
[3] CT INPUT (unbalanced load)
Current
1: 1 A AC
2: 2 A AC
5: 5 A AC
Functions & Features
• Providing a DC output signal in proportion to AC reactive
power
• DC output containing little ripple is ideal for computer
input
• "Time division multiplication" method accepts distorted
waveforms
[4] OUTPUT SIGNAL POLARITY
P: Negative in lag, positive in lead
• Isolation up to 2000 V AC
• High-density mounting
M: Negative in lead, positive in lag
• Conforms to IEC 60688
[5] OUTPUT
• No auxiliary power supply required
Current
A: 4 – 20 mA DC (Load resistance 500 Ω max.)
FW: -10 – +10 mA DC (Load resistance 1000 Ω max.)
GW: -1 – +1 mA DC (Load resistance 10 kΩ max.)
JW: -5 – +5 mA DC (Load resistance 2000 Ω max.)
Z: Specify current (See OUTPUT SPECIFICATIONS)
Voltage
Typical Applications
• Centralized monitoring and control of power management
system in a manufacturing facility or building
72
(2.83)
6: 1 – 5 V DC (Load resistance 5000 Ω min.)
1W: -10 – +10 mV DC (Load resistance 10 kΩ min.)
2W: -100 – +100 mV DC (Load resistance 100 kΩ min.)
3W: -1 – +1 V DC (Load resistance 1000 Ω min.)
4W: -10 – +10 V DC (Load resistance 10 kΩ min.)
5W: -5 – +5 V DC (Load resistance 5000 Ω min.)
0: Specify voltage (See OUTPUT SPECIFICATIONS)
111
(4.37)
143 (5.63)
mm (inch)
[6] OPTIONS (multiple selections)
Terminal Cover
blank: Without
MODEL: LTRPN–[1][2][3][4][5][6]
/T: With
Other Options
ORDERING INFORMATION
• Code number: LTRPN–[1][2][3][4][5][6]
Specify a code from below for each of [1] through [6].
(e.g. LTRPN-115PA/T/Q)
blank: none
/Q: Option other than the above (specify the specification)
SPECIFICATIONS OF OPTION: Q
COATING (For the detail, refer to M-System's web site.)
/C01: Silicone coating
• Special output range (For codes Z & 0)
• Specify the specification for option code /Q
(e.g. /C01)
/C02: Polyurethane coating
• Use Ordering Information Sheet (No. ESU-3355).
/C03: Rubber coating
[1] CONFIGURATION
1: 3-phase / 3-wire
GENERAL SPECIFICATIONS
Connection: M4 screw terminals (torque 1.2 N·m)
4: 3-phase / 4-wire
Screw terminal: Chrome-plated steel
Housing material: Flame-resistant resin (black)
Isolation: Voltage input to current input to output
Computation: Time division multiplication
Overrange output: Approx. -10 to +120 % at 1 – 5 V
[2] VT INPUT (balanced load)
For 3-phase / 4-wire, phase voltages (e.g. 110 V / √3 ) are used.
1: 110 V AC
LTRPN SPECIFICATIONS
ES-3358 Rev.10 Page 1/3
https://www.m-system.co.jp/