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Characteristics
●2 sets of 20A contact switching capability
●Coil control single or dual coil selectable
●Products with an operating temperature of 105°C are available.
●10mm height for low profile mounting
●4KV dielectric strength between coil and contacts
●Contacts can withstand 750A 10ms short-circuit inrush current.
●UL Insulation Class: Class F
●Environmentally friendly product (RoHS compliant)
●Exterior dimensions: (30.0×20.0×10.0)mm
●Main Application:Smart Home
Coil Specifications

Rated voltage	Action voltage	Reset voltage	Rated current (± 10%)	Coil resistance (± 10%)	Rated power	Maximum allowable voltage
					2000mW	150% rated voltage
DC12V	≤9 VDC	≤9 VDC	166.7/166.7mA	72/72Ω	2000mW	150% rated voltage

Safety Approvals

Certification type	Certification number	Contact form	Contact material	Certification load
ULC-UL	E340054	2A(NO)、2B(NC)	AgSnO₂	20A/16A 250VAC 85℃ TV-8 250VAC 85℃ 1.5HP 250VAC 85℃ 10A 250VAC(LED灯) 85℃
TUV	R 50406980	2A(NO)、2B(NC)	AgSnO₂	20A/16A 250VAC 85℃ 20A/16A 250VAC 85℃
CQC	CQC18002188986	2A(NO)、2B(NC)	AgSnO₂	20A/16A 250VAC 85℃

Performance Summary

Specifications	project
Contact parameters	Electric shock form		2A
	Contact resistance (initial value)		20mΩ（6VDC 1A）
	Contact material		AgSnO₂
rated load	Control load (resistive)		16A 250VAC 20A 250VAC
	Maximum switching voltage		277VAC
	Maximum switching current		20A
	Maximum switching capacity		12500VA
	Minimum allowable load		5VDC 100mA
Electrical performance	Insulation resistance (initial value)		1000MΩ（500VDC）
	Dielectric withstand voltage (initial value)	Between open contacts	2000VDC，1min
		Between contacts and coils	4000VDC，1min
	Action time		≤15ms
	Reversion time		≤15ms
Mechanical properties	Impact	stability	98m/s²（10g）
		strength	980m/s²（100g）
	vibration		10Hz--55Hz 1.5mm dual amplitude
Durability	mechanical		*110**⁶
	electrical		16A250VAC 1×10⁵(ON/OFF=1s/9s) 20A250VAC 5×10⁴(ON/OFF=1s/9s) 1.5HP 250VAC(motor) 5×10⁴(ON/OFF=1s/9s)
Usage conditions	ambient temperature		‘-40~85℃
	humidity		5%-85%
Outgoing end method			Printed board type
weight			About 12g
Packaging method			Anti welding flux type, plastic sealing type

Magnetic retention relay working principle introduction and ordinary relay difference in what?
Magnetic retention relay is a kind of electromagnetic relay with unique magnetic retention function, which generates a magnetic field when it is driven by the excitation current to make its switching parts close or break, and at the same time, it uses its own magnetism to keep the switching state and maintains the switching state with a smaller current.
This unique feature can eliminate the problem of relay tripping and frequent failures, greatly improving the reliability and stability of the circuit, but also saves power resources, so how does the magnetic retention relay work? What is the difference with ordinary relays? The following will answer these questions:

Magnetic Retention Relay Working Principle
Magnetic retention relay is a new type of relay developed in recent years, but also a kind of automatic switch, and other electromagnetic relays, the same as the circuit plays the role of automatic connection and cut off, the difference is that the magnetic retention relay is normally closed or normally open state is entirely dependent on the role of permanent magnets, the switching state of the switching state is triggered by a certain width of the pulse electrical signal and completed.
Magnetic retention relay contacts open and close state is usually generated by the permanent magnet steel to maintain the magnetic force, when the relay contacts need to open or close state (i.e., connect or cut off the load), just positive (reverse) DC pulse voltage excitation coil, the relay in an instant on the completion of the state of the open and close conversion.

The working principle can be briefly described as follows.
1, excitation coil: when there is a current flowing through the excitation coil, it will form a magnetic field on the chip of the relay, and this magnetic field causes the core of the relay (usually soft iron) to produce a magnetic attraction, which makes the core and the switching components suction.
2, disconnect the excitation current: when the excitation current is disconnected, the magnetic energy will cause the iron core to continue to maintain the magnetic state, so that the switching parts are still in the state of suction, that is, to maintain the switching state of the relay, known as the magnetic holding state. When the switch is to be switched off, it is only necessary to pass a current in the opposite direction again, so that the magnetic energy is reversed, and the iron core can be separated from the switching parts, i.e. the relay is switched off.
Since the contact state of a magnetically held relay is maintained by the magnetic force of the permanent magnets, the control of contact switching can be achieved by simply inputting forward or reverse DC pulses of a certain width at both ends of the coil to switch the magnetically held relay on or off.

Differences between magnetically held relays and ordinary relays
The main difference between magnetic retention relay and ordinary relay is that magnetic retention relay can keep its switching state through its own magnetic memory, while ordinary relay can not, this special function makes magnetic retention relay have great application in industrial automation control.

1、Different working principle
Ordinary relay is a kind of electromagnetic control switch, through the current line on the power supply, control relay open, closed two states, when the relay coil receives the current, will produce a magnetic field in the core of the relay, thus driving the contacts from open to closed, in the absence of power activation, the relay is in the open state.
The magnetic retention relay in the receipt of the activation signal, the contacts will only once open or close, and will not return to the open state after the current source is disconnected, because the permanent magnetic field in the iron core on the maintenance of Hall's threshold.

2, the function is different
Ordinary relays must maintain the activation current to maintain the switching state. Close the relay needs to disconnect the current on the power supply, and this will cause the relay contacts to pop up, perform multiple open/close operations, ordinary relays need to waste more power, at the same time, will flow a large amount of current to break the electrical contacts and speed up its damaged life.
Magnetic retention relays use manganese-copper alloys or aluminium-nickel-iron alloys for the core. These alloys have their own magnetic memory and can store most of the magnetic energy in the magnetic field, so the switching state of the retention relays is more reliable, which allows the industrial equipment to maintain the original working state without maintaining the activation current and reduces energy consumption.
3、Application Scenarios and Advantages and Disadvantages
Ordinary relays are suitable for short-time, low-frequency use, such as electrical appliances online, etc., while magnetic retention relays are usually used in remote control, regulation, shock triggering and counting circuits, etc., which require high stability and reliability, such as automation industry, electric power, metallurgy, petroleum and so on. Compared with ordinary relays, magnetic retention relays allow for the operation of more operating switches and have faster response times, which reduces costs while reducing maintenance requirements and improving efficiency and reliability.
With the continuous progress of technology, the application of magnetic retention relays is expanding, it is widely used in electric power, machinery, automation control and electronics, and has become one of the important components of modern industrial automation control.
Package Included:1/2/5/10/20PCS