RKF-LTS Magnetic Blow-out Power Relay

Features

The RKF Electromagnetic Fusible Power Relay is a reliable and efficient motor load application. The relay has a non-polar LED for easy coil identification, and a lockable test and inspection window. The relay also has good performance for long-term use.

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RKF Magnetic Blow-out Power Relay Details

Having good performance for motor load application.
With non-polarity LED.
Equipped with lockable test and inspection window.
Identification of coil through test button color.

RKF magnetic blow-out power relay consists of a Relay and socket. The control voltage range can be extended using a matching socket. It can be used with the following types of sockets: SKF08-E socket, SKF14-E socket, SKB08-E socket, SKB14-E socket, SKC08-E socket, SKC14-E socket, SKB08-E socket, SKB14-E socket, and etc.

RKF Magnetic Blow-out Power Relay Characteristics

Contact	Conﬁguration		2C
	Load	Resistance	15A/250VAC 30VDC (NO:15A, NC:7.5A); 10A 60VDC
		Motor load	1/3HP, 240VAC
	Switching capacity (resistive)		3750VA, 600W
	Switching capacity (perceptual)		2500VA, 90W
	Min. switching capacity		170mW(17V/10mA)
	Initial contact resistance		≤50mΩ
	Material		Ag alloy
	Electric durability(110%rated voltage, 55℃)		≥10 x 104Cycles NO:15A, NC:7.5A); ≥20 x 10 4 Cycles(NO/NC:12A)
	Mechanical durability		≥2000 x 10⁴ (18000 Ops/h)
Pick-up voltage (23℃) (Rated voltage)			DC:≤75%, AC:≤80% 50/60Hz
Drop-out voltage (23℃) (Rated voltage)			DC:≥10%, AC:≥30% 50/60Hz
Maximum voltage (23℃) (Rated voltage)			110%
Insulation resistance			≥1000MΩ (500VDC)
Coil operating power	DC (W)		approx. 0.9
	AC (VA)		approx. 1.2
Operate time&Release time (at nominal voltage)			≤20ms
Initial breakdown voltage	Between open contacts		1000VAC/1min (leakage current 1mA)
	Between poles		2000VAC/1min (leakage current 1mA)
	Between contacts and coil		4000VAC/1min (leakage current 1mA)
Insulation characteristics IEC 60664 UL840	Rated voltage		250VAC
	Pollution level		3
	Overvoltage level		III
Impulse withstand voltage (waveform: 1.2/50us)			4000V
Protection level			IP50
Storage temperature/ humidity			-55~+85℃/ ≤85%RH (18 months)
Working temperature/ humidity			-55~+70℃/ 5%~85%RH (No condensation) ★
Air pressure			86~106KPa
Shock resistance			10G (half-sine shock pulse: 11ms)
Vibration resistance			10~55Hz double-amplitude:1.0mm
Mounting			Plugin
Unit weight			Approx. 35g

Coil Speciﬁcations (23℃)

Nominal voltage V DC	6	12	24	48	110	/
Coil resistance Ω	40	180	640	2600	13000	/
Nominal voltage V AC	6	12	24	48	115	230
Coil resistance Ω	11.5	180	370	640	4430	16500
Remarks: Coil resistance: under coil voltage 110V is measured with a tolerance of ±10%Ω, above 110V with a tolerance of ±15%Ω.