Complementary
Maximum switching voltage	250 V AC
[Un] rated nominal voltage	24...240 V AC/DC 50/60 Hz, non self-powered
Supply voltage limits	20.4…264 V AC/DC
power consumption	1.5 W DC
Output contacts	2 C/O
nominal output current	8 A
delay at power up	2.5 s; 0.6 s
Maximum electrode voltage	12 V AC
Maximum electrode current	1 mA
Repeat accuracy	+/- 2 % for time delay
Measurement error	< 1 % over the whole range with voltage variation; 0.05 %/°C with temperature variation
Maximum cable distance between devices	100 m between probe and delay
Sensitivity scale	0.25...5 kOhm LS (Low Sensitivity); 5...100 kOhm St (Standard Sensitivity); 50...1000 kOhm HS (High Sensitivity)
Sensitivity adjustment	5…100 %
Maximum supply current for sensors	1 mA
Cable capacitance	1 nF at HS (High Sensitivity) for probe cable; 2.2 nF at St (Standard Sensitivity) for probe cable; 4.7 nF at LS (Low Sensitivity) for probe cable
Overvoltage category	III conforming to IEC 60664-1
Insulation	Between supply and measurement
Connections - terminals	Screw terminals, 2 x 0.5...2 x 2.5 mm² (20 AWG...14 AWG) solid without cable end; Screw terminals, 2 x 0.2...2 x 1.5 mm² (24 AWG...16 AWG) flexible with cable end; Screw terminals, 1 x 0.5...1 x 3.3 mm² (20 AWG...12 AWG) solid without cable end; Screw terminals, 1 x 0.2...1 x 2.5 mm² (24 AWG...14 AWG) flexible with cable end
Tightening torque	0.6…1 N.m conforming to IEC 60947-1
Housing material	Polycarbonate
Mounting support	35 mm DIN rail conforming to IEC 60715
Mounting position	Any position
Electrical durability	100000 cycles
Mechanical durability	10000000 cycles
Contacts material	Cadmium free
Measurement range	0.25...1000 kOhm
Safety reliability data	MTTFd = 182.6 years; B10d = 170000
Width	22.5 mm
Control type	With test button
Net weight	0.11 kg
Contractual warranty
Warranty (in months)	18
Environment
Immunity to microbreaks	100 ms DC; 90 ms AC
Standards	IEC 60255-1
Product certifications	UL; RCM; CSA; GL; CCC; CE; EAC
Ambient air temperature for storage	-40…70 °C
Relative humidity	93…97 % at 25…55 °C conforming to IEC 60068-2-30
Vibration resistance	0.075 mm (f= 10…58.1 Hz) not in operation conforming to IEC 60068-2-6; 1 gn (f= 10…58.1 Hz) not in operation conforming to IEC 60068-2-6; 0.035 mm (f= 58.1…150 Hz) in operation conforming to IEC 60068-2-6; 0.5 gn (f= 58.1…150 Hz) in operation conforming to IEC 60068-2-6
Shock resistance	15 gn (duration = 11 ms) for not in operation conforming to IEC 60068-2-27; 5 gn (duration = 11 ms) for in operation conforming to IEC 60068-2-27
IP degree of protection	IP20 (terminals) conforming to IEC 60529; IP40 (housing) conforming to IEC 60529; IP50 (front panel) conforming to IEC 60529
Pollution degree	3 conforming to IEC 60664-1
Dielectric test voltage	2.5 kV, 1 min AC 50 Hz conforming to IEC 60255-27
Logistical informations
Country of origin	ID
Main
Range of product	Harmony Control Relays
Relay type	Level control relay
Product or component type	Level control relay
Relay name	RM22L
Relay monitored parameters	Detection by resistive probes
time delay	Adjustable 0.1...30 s, +/- 10 % of the full scale value Tt- time delay upon fault
Switching capacity in VA	2000 VA
Minimum switching current	10 mA at 5 V DC
Maximum switching current	8 A AC
Utilisation category	AC-15 conforming to IEC 60947-5-1; DC-13 conforming to IEC 60947-5-1; AC-1 conforming to IEC 60947-4-1; DC-1 conforming to IEC 60947-4-1
Contacts type and composition	2 C/O
Packing Units
Unit Type of Package 1	PCE
Number of Units in Package 1	1
Package 1 Height	2.6 cm
Package 1 Width	8.2 cm
Package 1 Length	9.5 cm
Package 1 Weight	122.0 g
Unit Type of Package 2	S02
Number of Units in Package 2	40
Package 2 Height	15 cm
Package 2 Width	30 cm
Package 2 Length	40 cm
Package 2 Weight	5.492 kg
Unit Type of Package 3	P06
Number of Units in Package 3	640
Package 3 Height	60.0 cm
Package 3 Width	80.0 cm
Package 3 Length	60.0 cm
Package 3 Weight	95.14 kg

Harmony Control. This level relay monitors the level of conductive, non-flammable liquids (conductive measuring principle) as a limit switch. It can also be used to control liquid levels in a 2-point control system when filling and emptying. Conductive level electrodes are hung in the tank for this purpose. The measuring principle enables the distinction between liquid and foam. Two relay changeover switches are available for reporting, which can be loaded up to 8 A. The resistance value (250 Ohm-1 MOhm) can be set as a limit value and a response or switch-off delay can be set for the outputs. The settings are made using control elements on the front, which can be protected against changes under a transparent cover. With an illuminated scale arrow, the setting of the potentiometer can be clearly seen even from a distance. The diagnostic switch on the front enables the output relays to be switched off to test the entire application. When the transparent cover is closed, the diagnostic switch is automatically reset. Two LEDs show the status. The width is 22.5 mm and it is mounted on a top hat rail. The wide voltage power supply (24-240 VAC/DC) enables universal use. The cable connection is made via screw terminals.