Square D Digest 179

Control and Measurement Relays

RM17JC and RM35JA

Refer to Catalog DIA5ED2160501EN

www.se.com/us

Harmony™ Current Measurement Relays

Harmony Current Measurement Relays are designed to measure under and overcurrent conditions, without external sensors. Current measurement relays enable continuous monitoring of the operation of electrical and mechanical loads such as motors and heaters. They are DIN rail mountable and the control status is indicated by an LED. RM17JC Current Control Relay • Monitors AC currents

RM35JA Current Control Relays • Selection between overcurrent or undercurrent • Automatic DC or AC recognition • Selectable memory function

• Designed to monitor overcurrent • Equipped with an integrated current transfmormer

Table 20.121: Harmony Current Measurement Relays Supply Voltage Measurement Range Output 5A Range [1] Terminals

Width

Catalog Number

Inches

mm

2–20A 2–20mA

N/A

1C/O

0.69

17.50

RM17JC00MW

E1-M

RM17JC00MW

10–100 mA E2-M 50–500 mA E3-M 0.15–1.5 A E1-M

RM35JA31MW

24–240 Vac/dc

2C/O

1.38

35.00

0.5–5A 1.5–15A

E2-M

RM35JA32MW

E3-M Table 20.122: Output Characteristics and Measurement Circuit Characteristics Type of Relay RM17JC00MW RM35JA31MW RM35JA32MW Setting accuracy Plus or minus 10% of the full scale value Repeat accuracy (with constant parameters) Plus or minus 0.5% Hysteresis 15% of the threshold setting, fixed 5 to 50% of the threshold setting, adjustable Time delay accuracy (with constant parameters) N/A Plus or minus 2% Time delay on pick-up 500ms 300ms Conforming to standards NF EN 60255-6 Ambient air temperature around the device Storage -40 to 158 degrees F (-40 to +70°C) Opera tional -4 to 122 degrees F (-20 to +50°C) Approvals for Harmony Current Measurement Relays

RM35JA31MW

CE: 73/23/EEC andEMC89/ 336/EEC

File: E173076 CNN:NRNT, NRNT7

GL, C-Tick, GOST, RoHS

File: 248382 Class: 3211 07

Approximate Dimensions

RM35JA3•MW

RM17JC00MW

35/ 1.38

72/ 2.83

A1

A2 E3 E2 E1 M

17.5 0.69

97/ 3.82

RM35JA32MW

10/0 .39

20 RELAYS AND TIMERS

1C/O=

90/ 3.54

90/ 3.54

2C/O=

12 11 14 22 21 24

2.8

0.11

2.8

0.11

76/ 2.99 72.5/ 2.85

101/ 3.98 97.5/ 3.84

Dual Dime nsions: INCHES Millimeters

[1] Above 15 A, a current transformer can be connected (for RM35JA3•MW). See page 57 of catalog 8430CT0601 for suggested wiring.

20-52

© 2024 Schneider Electric All Rights Reserved