© 2016 Littelfuse Protection Relays & Controls
Protection Relays
Remote Indication and Monitoring
www.littelfuse.com/rm2000
Rev: 1-A-062716
RM2000 SERIES
Features
Displays:
Average current, individual line currents and current unbalance
Current to ground
Average voltage, line-line voltages and voltage unbalance
Instantaneous power
Power factor
Last four faults
All parameters programmed into 777 MotorSaver
®
Remaining restart delay times
Controls:
Start and stop buttons
Key lock input to prevent setpoint changes
Change 777 setpoints from keypad
The RM2000 is also equipped with a real-time clock, which
allows access to the following motor management information
(most readings can be reset):
Total motor run-time
Time and date of last four faults, along with voltage and
current at time of trip
Time and date of last 10 motor starts
Total number of motor restarts
Minimum time between any two starts with time and date
Run-time since last start
kWh consumed
kVARs consumed
Accessories
RS485-RS232 Converter with cable & plug
Allows RS485 devices to be connected to a PC
via the RS232 (serial) port. Provides convenient
terminal blocks for making signal and DC power
supply connections. Pre-wired.
RS485-USB
Converter with cable & plug/RS232:USB
Allows RS485 devices to be connected to a PC
via the USB port. Provides convenient terminal
blocks for making signal and DC power supply
connections. Pre-wired.
Solutions Software: Solutions-M
Software features include data logging, real-time
data monitoring and fault and event monitoring.
Specifications
Input Characteristics
Control Voltage 115VAC ±10%; 50/60Hz
Transient Protection
(Internal) 2500V for 10ms
Functional Characteristics
Communication Port #1 for 777 Port #2 for PC, PLC, etc.
Baud Rate 1200-28800 1200-28800
Setup Even Parity None, Odd, or Even Parity
1 Stop Bit 1 or 2 Stop Bits
Protocol Modbus RTU Modbus RTU
Serial Interface RS-485 RS-485
Available Addresses 01 A01-A99
Real-time Clock
Battery Back-up Life 10 years @ 25°C without external power
Last fault memory Stores up to 4 faults with time and date stamp,
includes voltages and currents at time of trip
Configuration Two independent electro-mechanical
Form C (SPDT)
Contact Material Silver/Tin Oxide
Output Characteristics
(RM2000-RTDW version only)
Pilot Duty Rating 240VA @ 120VAC
General Purpose Rating 5A @ 120VAC
General Characteristics
Ambient Temperature Range
Operating -20° to 70°C (-4° to 158°F)
Storage -30° to 70°C (-22° to 158°F)
Maximum Input Power 3 W
Class of Protection NEMA 3R and/or UL Type 12
Relative Humidity Up to 85%, non-condensing
Safety Marks
UL UL508 (File #E68520)
CSA C22.2 No. 14 (File #46510)
CE IEC 60947-6-2
Enclosure
Material Black polycarbonate
Display Liquid crystal with extended temp. range
Size 2 rows x 20 characters
Lighting LED Backlight
Keypad Eight 0.5” stainless steel dome buttons for
tactile feedback
Mechanical Life 100,000 actuations
Overlay Material Polyester
UV Exposure
w/o degradation 2000 hrs.
Terminal Torque
(depluggable terminal block) 3 in.-lbs.
Dimensions H 162.56 mm (6.4”); W 154.94 mm (6.1”);
D 27.94mm (1.1”)
Weight 1.2 lbs. (19.2 oz., 544.31 g)
Mounting Method Surface mountable on backplane using
4 screws
