XJ3-D Series Phase-Failure And Phase-Sequence Protection Relay
Over/Under-Voltage 3 Phase Protector
Product Description:
The XJ3 series phase failure and phase sequence protection relay is
designed for over-voltage, under-voltage, and phase failure
protection in three-phase AC circuits, as well as phase sequence
protection in irreversible drive systems. It features reliable
performance, wide application range, ease of use and so on.
When the protection device is connected into the power control
circuit, it can perform the protection function. In a three-phase
circuit, if any one phase fuse opens or there is a phase failure in
the power supply line, the XJ3 relay will immediately activate, and
the control contacts will cut off the main circuit AC contactor
coil power, thereby causing the AC contactor main contacts to
actuate and protect the load from phase failure.
For three-phase irreversible equipment, if it is incorrectly
connected with the original phase sequence due to the maintenance
or change of power supply line after phase sequence identification,
the XJ3 series can detect the incorrect phase sequence and work
reliably, stop supplying power to the circuit, achieving the
purpose of protecting the equipment.
Product Feature:
■ Small size, light weight and compact structure.
■ High delay precision and reliable.
■ Long performance.
■ This product is mainly composed of shell, main control circuit
and wiring base.
■ Equipped with running, phase fault indicator.
Product Specification:
| Type | XJ3-G | XJ3-G1 | XJ3-D |
| Protection Function | Phase-failure Phase-sequence error &
Three phase voltage unbalance≥8%~13% | Phase-failure Phase-sequence error | Overvoltage Undervoltage
Phase-failure Phase-sequence error |
| Overvoltage Protection(AG) | _ | 380V~460V 1.5s~4s(adjustable) |
| Undervoltage Protection(AC) | _ | 300V-380V 2s~9s(adjustable) |
| Rated Control Supply Voltage | AC380V, 50Hz | AC 380V 50Hz |
| Contact Number | 1 normally open & 1 normally close | 1 group changeover |
| Contact Capacity | Ue/le: AC-15 240V/0.75A,415V/0.47A Ith:5A | Ue/le: 415V/0.47A Ith:3A |
| Phase-failure And Phase-sequence Protection | Reacting time≤2s | Reacting time≤1s |
| Electrical Life | 1×105 |
| Mechanical Life | 1×106 |
| Ambient Temperature | -5℃~40℃ |
| Installation Mode | Equipment type or Track type | 35mm Track installation or punching installation |
FAQ:
Q: How to guarantee the quality of your products?
A: All goods are from original factory, and we provide Original
factory warranty for all goods from us.
Q: Is there any engineer can help for technical support?
A: We're in this field many year. we engineers help customers solve
any problems encountered in product use.
Q: What about the shipment?
A: We will choose the most suitable transportation method according
to the weight and quantity of the product, of course, customers can
also use their own freight forwarders.
Q: How about the terms of payment?
A: Generally through L/C, D/A, D/P, T/T and so on.
Q: Do you accept customized service?
A: We offer OEM/ODM service, can print your logo on product. our
professional technical and quotation team can provide a satisfied
project according to your drawing and parameters.
Q: What is your MOQ?
A: Our MOQ is 1 piece.
Q: How long is your delivery lead time?
A: It depends on your product requirement and quantity. Generally, 5 weeks is available.
