JRS2 series of thermal relay electrical contactors and relays electronic overload relay
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- Loading Port:
- Ningbo
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 pc
- Supply Capability:
- 5000 pc/month
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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:
Outline and Mounting Dimension:
Accessories:
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- Q: Whether you can use the current relay to do motor overload protection
- Motor can use the temperature protection, voltage protection, current protection is commonly used in motor protection methods, over-current protection is relatively simple to use, the effect is also more satisfactory.
- Q: The relay is connected to the diode
- Relay diode function: the diode called "freewheeling diode" due to the role of the circuit in the role of the role of continuous flow, the general choice of fast recovery diode or Schottky diode as a "freewheeling diode", it is in the circuit Generally used to protect the components from the induced voltage breakdown or burnout, in parallel with the way to generate the induced electromotive force of the two ends of the device, and with the formation of the loop, so that the resulting high electromotive force in the circuit to continue the current consumption, The components in the protective circuit are not damaged
- Q: With the following instrument to do the relay action test, the experimental results out of a "action time = 0.112ms", I would like to ask the Secretary to collect action time principle is what kind of?
- Specifically, use a storage recorder (Japan Japan 8860-50, etc.) and two voltage probes. One probe is connected to the input of the relay and the other is connected to the output. This recorder can see the action time to compare two signals.
- Q: Time relay What is the meaning of instantaneous action, can not use an actual circuit example shows how the next momentary and ordinary delay, the difference in that
- Time relay generally has two sets of normally open, normally closed delay contact, there are individual models (AH3-3, JSZ3) time relay only a group of normally open, normally closed delay contact and a group of ordinary normally open, normally closed Contact (immediate action).
- Q: There is a fuse, why should the thermal relay
- Thermal relay function is to control the temperature, when the machine temperature rises to the thermal relay set the temperature limit, the automatic circuit breaker circuit breaker Fuse is to control the current, the machine load is greater than the rated value, the current will be too large, the fuse is broken and protected You may not really understand the place where the current is too large will produce heat, but the location is not the same installed ah One is the body of the temperature control, one is the circuit control
- Q: How is the relay repaired?
- Landlord, the relay is best not to open the. General relay bad is the contact is oxidized lead to the emergence of unable to pull (poor contact) and so on. If you really want to repair the black oxide contacts should be no problem. But once opened, the relay inside the rare gas environment is destroyed, it is easier to oxidation.
- Q: What is the difference between the relay and the contactor, what is the difference
- Contactor is the load capacity is much stronger than the relay, and its contacts through the current capacity of dozens to hundreds of Bian less, mainly with the load the main line of the implementation of the line with the overload protection thermal relay series used in combination, Big.
- Q: The principle of the relay I know. I found some information. Said it is often closed to protect the circuit. How to protect I do not understand this sentence. The relay is not a small current to control the high current thing. If a 12V control power is connected to the relay, keep the relay coil constant. As long as there is always a current, the relay should not be broken off normally open point. So the machine is a failure "such as: connected." Often closed point should not be broken into a very open point ah. what is the problem?
- You are not very clear about this problem, but on the question you asked I can say that the working principle of the relay. Not to say that normally closed than usual to open, depending on what circuit you want to switch, try to use the normal state access circuit, for example, you want to switch the circuit for a long time to pass the state, then use normally closed. The principle of the relay you know, mainly rely on the coil to produce a force to pull the coil to pull the spring or shrapnel force to open the contact open (this is often open to say). If you want to say just now, your circuit requires a long pass, if you use normally open, you need to always supply the relay coil (except magnetic latching relay). The spring (shrapnel) is always in the stretched state, the metal is also tired, long spring (shrapnel) may not play or other conditions. If the use of normally closed, through itself is his initial state, so the problem is very much reduced. Have nothing to ask
- Q: What is the use of thermal relay relay is the thermal relay?
- As the thermal relay action process takes a long time, it can not be used for short circuit protection, can only be overload protection. Thermal relay symbol; new standard (after 92 years): FR; old standard: RJ
- Q: Why is the relay called relay?Do not know the name of this relay and his working principle how to contact
- Relay is the successor of the link he is actually equivalent to the original loop off as a switch to use, but he is not a switch is a link only function. I can only explain that
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JRS2 series of thermal relay electrical contactors and relays electronic overload relay
- Ref Price:
-
- Loading Port:
- Ningbo
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 pc
- Supply Capability:
- 5000 pc/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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