Square D Digest 179

Control and Measurement Relays

RM17UB, RM35UB, RM17UAS, RM17UBE, RM35UA1•MW

Refer to Catalog DIA5ED2160501EN

www.se.com/us

Harmony™ Voltage Measurement Relays

Harmony Voltage Measurement Relays are DIN rail mountable and relay status is indicated by an LED. Single phase and DC voltage measurement and control relays RM17UAS•• and RM17UBE•• monitor: • Overvoltage • Overvoltage and undervoltage • Undervoltage • Nominal voltages Table 20.129: Single-phase and DC voltage control relays Supply Voltage Ranges Controlled Output 5A Width Catalog Number in. mm 12Vdc 9–15Vdc RM17UAS14 [2]

RM17UAS16 [2] RM17UAS15 [2] RM17UBE16 [3] RM17UBE15 [3]

24–48 Vac/Vdc

20–80 Vac/Vdc

RM17UB310

RM17UAS••

110–240 Vac/Vdc 65–260 Vac/Vdc

1C/O

0.69

17.50

24–48 Vac/Vdc

20–80 Vac/Vdc

110–240 Vac/Vdc 65–260 Vac/Vdc

Multifunction voltage control relays RM35UA1•MW monitor both AC and DC voltages. • Automatic Vdc or Vac recognition • Selection between overvoltage and undervoltage

Table 20.130: Multifunction voltage control relays Supply Voltage Measurement Range Output 5A Range [4] Terminals

Width

Catalog Number

in.

mm

0.05–0.5V

E1-M E2-M E3-M E1-M E2-M E3-M E1-M E2-M E3-M

0.3–3V 0.5–5V 1–10V 5–50V

RM35UA11MW

24–240 Vac/Vdc

2C/O

1.38

35.00

RM35UA12MW

10–100V 15–150V 30–300V 60–600V

RM35UA13MW

3-phase voltage control relays monitor: • Failure of one or more phases • Voltage between phases

RM35UA1•MW

• Voltage between phases and neutral • Overvoltage and undervoltage

• Absence of neutral

Table 20.131: Three-phase voltage control relays Rated 3-Phase Supply Voltage Vac Measurement Range Output 5A

Width

Catalog Number

in.

mm

1C/O+1C/O 1 per threshold

220–480 phase-phase 195–528 Vac

35.00 RM35UB330 [5] 17.50 RM17UB310 [5] 35.00 RM35UB3N30 [4]

1.38 0.69 1.38

120–277 phase-neutral 120–277 phase-neutral

183–528 Vac 114–329 Vac

1C/O

1C/O+1C/O 1 per threshold

Approvals for Harmony Voltage Measurement Relays

20 RELAYS AND TIMERS

CE 73/23/EEC andEMC89/ 336/EEC

File: E173076 CNN:NRNT, NRNT7

GL, C-Tick, GOST, RoHS

File: 248382 Class: 3211 07

RM35UB3•••

Approximate Dimensions

RM35•

RM17•

72/ 2.83

17.5 0.69

1C/O=

35/ 1.38

72/ 2.83

2C/O=

90/ 3.54

90/ 3.54

2.8

2.8

0.11

0.11

76/ 2.99 72.5/ 2.85

76/ 2.99 72.5/ 2.85

Dual Dime nsions: INCHES Millimeters

Provides overvoltage or undervoltage protection.

[2] [3]

Provides overvoltage and undervoltage protection in window mode.

[4] Provides overvoltage and undervoltage protection between phases and neutral and absence of neutral. [5] Provides overvoltage and undervoltage protection between phases.

20-54

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