JRS2 series of thermal relay electrical contactors and relays electronic overload relay

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JRS2-80/Z Thermal Relay

Product Details
Brand Name	Shaman	Item No.	JRS2-80/Z
Color	Black	MOQ	100 pcs
Packing	30 pcs in one carton based on the items of products.
Important Information
Send sample	Yes
Delivery time	Within 30 days.
Payment terms	T/T 30% deposit, the balance before the shipment.

Introduction:

JRS2 thermal relay is suitable for AC 50/60Hz, voltage up to 660V and current up to 630A,general AC motor of long or discontinuous long operation, used as overload protection and has the functions of breaking phase protection, temperature compensation, and trip indication.
It can automatically and manually get back. It can be fixed with contactor CJX1 together, also be independently fixed.
The product conforms to IEC60947-4-1 standard.

Motion Characteristic:

(Three-phase Balance Motion Time)

No	Times of the setting current	Motion time			Start condition	Ambient temperature
1	1.05	>2h			Cold state	20±5℃
2	1.2	<2h< span="">			Heat state(Following the No.1 test)
3	1.5	<4min< span="">
4	7.2	10A	2s< Tp≤10s	≤63A	Cold state
		10	4s< Tp≤10s	>63A

Phase-losing Motion Characteristic:

No	Times of the setting current		Motion time	Start condition	Ambienttemperature
	Any two phases	Another phase
1	1	0.9	>2h	Cold state	20±5℃
2	1.15	0	<2h< span="">	Heat state(Following the No.1 test)

Specification:

JRS2 series of thermal relay electrical contactors and relays electronic overload relay

Outline and Mounting Dimension:

Accessories:

Detailed Images:

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Q: See the Omron relay (G6K-2F-Y) manual on the "non-latching" (non-latch) and "terminal spacing" these two terms, do not know what the meaning, please enlighten me, the best point: Is the "self-locking" contactor, in the contactor "self-locking" circuit, such as the simplest two-button "open" and "off", the contactor coil a connector, according to the coil voltage requirements, connected to a fire line Or zero line. When the button is turned on, the other connector of the coil is turned on by the button, providing the coil voltage, the contactor sucking and. When the button is broken, the button of this line of fire, through the contactor auxiliary contacts, continue to provide voltage for the coil, the contactor can also be connected to the state, which is the contactor "self-locking." If you want to disconnect the contactor, press the push button switch "stop", contactor power failure, disconnect the circuit. Contactor "interlock", such as the use of two contactors to control the motor anyway, the two contactors can not smoke at the same time, so the control of the two contactor coil is connected to each other by another, and in Three-button switch on the wiring is also cross-controlled. This double interlock, is to put an end to rely on the operation of the manual movement. There is no circuit, that do not understand, you can find a typical circuit diagram, you can understand this "self-locking" and "interlock."

Q: Electromagnetic relay switching frequency can reach 100HZ or so?: Reed relays may be able to reach. But the contact capacity is very small.

Q: The intermediate relay only 24V how to control the AC contactor through what connection: The intermediate relay controls the contactor, which is not related to the voltage level of the relay itself, only to the voltage level of the relay contact.

Q: C61F-GP CKC water level relay 1.E3 is input common? 2. Is E1 E2 at the same time there is an electrical input water level relay coil to pull? still is?: E1, E2, E3 then 3,4,1 terminal, E1, E2, E3 is placed inside the probe inside the water (no special probe, with three copper, high school low into the water inside the different locations). 2,7 is the product power supply. 5,6,7 is in the open and close a group of relay output, then control the contactor. Water level relay coil to meet what conditions to pull? Depends on whether the product is drained or water supply, and the drainage water supply probe will be different at the water level.

Q: OMRON PLC with computer software programming time relay and counter how to compile: HR (Hold Register) to maintain the type of relay, PLC power and then restart, as long as there is no reset, it off the state before power can be reproduced again, that is, to maintain the state before the power. In practice, many need to maintain, according to the specific circumstances of choice.

Q: Relay instructions to write a group of normally open, a group of conversion, "a group of conversion" What is the meaning of the meaning of normally closed it?: A group of normally open; is in an open state, in fact, is a single-pole single-throw switch: A group of switches; that is, this group of switches have three contacts, Z, A, B, Z known as the knife, A, B called throw. That is, this set of switches single pole double throw; knife Z, throw A, throw B. That is, from A to B.

Q: Relay mainly used in what occasions: For how to select a relay: 1. Load voltage conditions: Relay application load is 125 to 270 up to 400VAC, DC is usually the largest switching 30VDC 2. Load current situation: dozens of milliampere A to 200A AC 3. Medium pressure requirements: up to about 5000VAC and then consider the addition of a relay. 4. Electrical life requirements. Usually 100,000 times. According to the commitment of the manufacturers. 5. Design installation volume requirements 6. Design and installation requirements. These conditions are considered full, choose the kind of relay, but it has those properties, weigh the pros and cons like.

Q: How does the return factor of the voltage relay understand: Voltage relay return coefficient concept: (assuming the action voltage is 100V) When the voltage gradually increased from 0, the relay does not move. When the voltage reaches 100V, the coil pulls the armature and the contact closes. At this time 100V called "action voltage". If the voltage is maintained at 100V, the relay will always catch. When the voltage from 100V slow down, 99V, 98V, 97V, the relay will remain in the state of the pull, in the fall 96V, 95V ... ..., perhaps down to 80V, the relay suddenly released. At this time 80V is called "return voltage". The return voltage divided by the operating voltage is the "return factor".

Q: How the synchronous relays work: When any of the input voltage (or current) is zero or very low, the situation and the two voltage (or current) are the same phase, the relay should also immediately action. The secondary output voltage is related to the phase difference and amplitude of the two inputs (or currents). When the amplitude is constant, the larger the phase difference is, the larger the secondary output voltage is, and vice versa. The setting of the relay action angle is achieved by using the potentiometer R2.

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