Harmony™ Level, Pump, Speed, Frequency, Temp. Control Relays, and NFC Control Relays

Refer to Catalog DIA5ED2160501EN

Harmony™ Level Control Relays and Pump Control Relays

RM35LM33MW	RM35LV14MW







RM79696006

Harmony level control relays control one or two levels with fill or empty function. The settings are protected by a sealable cover, control status is indicated by an LED, and they are DIN rail mountable. RM35LM is designed to control levels of conductive liquid, and RM35LV is designed to control levels of other materials.

Application examples for RM35LM:	Application examples for RM35LV:
Detecting pump seal failures Spring, town, industrial and sea water Metallic salt, acid or base solutions Liquid fertilizers Non-concentrated alcohol (<40%)	Liquids in the food-processing industry: milk, beer, coffee, etc. Chemically pure water Fuels, liquid gasses (inflammable) Oil, concentrated alcohol (>40%) Ethylene, glycol, paraffin, varnish and paints

Level Control Relays

Time Delay on Crossing the Threshold	Function	Output Relay	Supply Voltage 50/60 Hz	Measurement Ranges	Catalog Number
0.1–5 seconds, 0 + 10%	Detection by resistive probes	2 C/O, 5 A	24–240 Vac/Vdc	250–5 k	RM35LM33MW
				5 k–100 k
				50 k–1 M
	Detection by discrete sensors	1 C/O, 5 A		—	RM35LV14MW

Electrode Holders

Description	Material	Catalog Number
Electrode for use up to 662°F (350°C)	Stainless steel isolated by ceramic	RM79696006

Pump Control Relay

Harmony pump control relay RM35BA10 can operate on a single-phase or 3-phase supply. It incorporates three functions in a signal unit:

Over and under current measurement	Single or three phase
Phase presence control

It has two operating modes which are designed to control a pump via two external signal inputs (Y1 Y2). These two signals are controlled by volt-free contacts. Control inputs Y1 and Y2 can be connected to:

Level sensor	Pressure sensor
Level relay	Push button

Pump Control Relay

Description	Current Range Controlled	Supply Voltage	Output	Catalog Number
Pump Control Relay	1–10 A	208–480 Vac, 3 phase	1 C/O 5 A	RM35BA10
Pump Control Relay	1–10 A	230, single-phase	1 C/O 5 A	RM35BA10

Approvals for Harmony Level Control and Pump Control Relays

File: E173076
CNN: NRNT, NRNT7

File: 248382
Class: 3211 07

CE 73/23/EEC and EMC 89/336/EEC

GL, C-Tick, GOST, RoHS

Approximate Dimensions (mm/in.)

RM35LM33MW, RM35LV14MW	RM35BA10

Harmony™ Speed, Frequency, Temperature, and NFC Control Relays

RM35S0MW

RM35HZ21FM

RM35AT•0MW

Harmony speed control relay RM35SOMW monitors underspeed and overspeed conditions, with or without memory, with inhibition by an external contact. It operates with either N.O. or N.C. sensors. Adjustable time between impulses is 0.05 s to 10 min. Power-on inhibition time is adjustable from 0.6 to 60 s. Inhibition is controlled by an external contact. Settings are protected by a sealable cover, control status is indicated by an LED, and it is DIN rail mountable.

Speed Control Relay

Function	Time Delay	Measurement Input	Supply	Output	Catalog Number
Underspeed	0.05 s to 10 min	3-wire PNP or NPN proximity sensor	24–240 Vac/Vdc	1 C/O 5A	RM35S0MW
Overspeed	0.05 s to 10 min	Namur type proximity sensor 0–30 V voltage Volt-free contact	24–240 Vac/Vdc	1 C/O 5A	RM35S0MW

Harmony frequency control relay RM35HZ monitors its own supply voltage. Settings are protected by a sealable cover, control status is indicated by an LED, and it is DIN rail mountable.

Frequency Control Relay

Function	Controlled	Supply Voltage	Output	Catalog Number
Over frequency and under frequency (50 or 60 Hz)	40–60 Hz (50 Hz) / 50–70 Hz (60 Hz)	120–277 Vac	1 C/O + 1 C/O 5 A	RM35HZ21FM

Harmony temperature control relays are designed for monitoring the temperature in elevator (lift) rooms, in compliance with directive EN81. For use with PT100 input (customer supplied). Features adjustable control, control status indicated by an LED, and is DIN rail mountable.

Temperature Control Relays

Function	Supply Voltage	Vac	Output	Catalog Number
Over temperature 93 to 114°F (34 to 46°C)	24–240 Vac/Vdc	—	1 C/O 5 A	RM35ATL0MW

Approvals for Harmony Speed, Frequency, and Temperature Control Relays

File: E173076
CNN: NRNT, NRNT7

File: 248382
Class: 3211 07

CE: 73/23/EEC and EMC 89/336/EEC