Description

Impulse relays, also known as Bistable Switches, are a form of latch relays, used to switch various electrical loads. When the switch is not initiated electrically or actuated manually, it remains stable in its operating position and will change its operating position on initiation or actuation. Such as a lighting circuit, or a conveyor.

Application

The impulse relays are used to control, by means of pushbuttons, lighting circuits consisting of:

1. Incandescent lamps, low-voltage halogen lamps, etc. (Resistive loads)

2. Fluorescent lamps, discharge lamps, etc. (Inductive loads)

3. Closing of the impulse relay pole(s) is triggered by an impulse on the coil.

4. Having two stable mechanical positions, the pole(s) will be opened by the next impulse. Each impulse received by the coil reverses the position of the pole(s).

5. Can be controlled by an unlimited number of pushbuttons.

6. Zero energy consumption.

Technical Data

Technical Data
Control circuit
Dissipated power (during the impulse)		1, 2P:19VA
Illuminated PB control		Max.current 3mA(if>use an ATLz)
Operating threshold		Min.85% of Un in conformance with IEC/EN60669-2-2
Duration of the control order		50 ms to1s (200ms recommended)
Response time
Power circuit
Voltage rating (Ue)	1P,2P	24...250VAC
Frequency		50Hz or 60Hz
Maximum number of operations per minute		5
Maximum number of switching operations a day		100
Additional characteristics to IEC/EN60947-3
Insulation voltage (Ui)		440VAC
Pollution degree		3
Rated impulse withstands voltage (Uimp)		6kV
Endurance(O-C)
Electrical to IEC/EN60947-3		200,000 cycles (AC21)
		100,000 cycles (AC22)
Overvoltage category		IV
Other characteristics
Degree of protection (IEC60529)	Device only	IP20
	Device in modular enclosure	IP40 Insulation class II
Operating temperature		-20°C to +50°C
Storage temperature		-40°C to +70°C
Tropicalization (IEC60068-1)		Treatment 2 (relative humidity 95% at 55°C
Security
Accessories	Yellow clips	Spacer
Function
	Ensure the mechanical and/or electrical link between impulse relays and their auxiliaries.	Required to reduce temperature rise of modular devices installed side by side. Recommended to separate electronic devices (thermostat, programmable clock, etc.) from electromechanical devices (relays, contactors).
Specifications
Width in 9mm modules	-	1

Dimensions

Connection
	Type	Rating	Circuit	Tightening torque	Copper cables
					Rigid or ferrule	Flexible or ferrule
				DB122945
	EKLR16	16 A	Control	1 N.m	0.5 to 4 mm2	1 to 4 mm2
			Power		1.5 to 4 mm2	1.5 to 4 mm2

Operation

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