© 2016 Littelfuse Protection Relays & Controls

Protection Relays

Remote Indication and Monitoring

www.littelfuse.com/rm2000

Rev: 1-A-062716

RM2000 SERIES

Features

Displays:

J

J

Average current, individual line currents and current unbalance

J

J

Current to ground

J

J

Average voltage, line-line voltages and voltage unbalance

J

J

Instantaneous power

J

J

Power factor

J

J

Last four faults

J

J

J

J

Remaining restart delay times

Controls:

J

J

Start and stop buttons

J

J

Key lock input to prevent setpoint changes

J

J

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):

J

J

Total motor run-time

J

J

Time and date of last four faults, along with voltage and

current at time of trip

J

J

Time and date of last 10 motor starts

J

J

Total number of motor restarts

J

J

Minimum time between any two starts with time and date

J

J

Run-time since last start

J

J

kWh consumed

J

J

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