Low-voltage Brief Catalogue Control Relay
Protection Relay
087 Low-voltage Brief Catalogue
088
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P -
NJYB3 Relay
NJS1-H Time Delay Relay
• NJYB3 relay is used to provide overvoltage, undervoltage, phase failure, phase sequence and three-phase unbalance control in three-phase three-wire 380V circuits and three- phase four- wire 220V circuits with a frequency of AC 50Hz(or 60Hz). For example, it is used for power control systems, air conditioning systems and motors.
• NJS1-H series time delay relay (hereinafter referred to as relay) is used as a time control element in control circuits with an AC voltage of 240V or below and a frequency of 50Hz/60Hz and control circuits with a DC voltage of 240V or below to make and break the circuit according to the schedule.
NJS1-H
NJYB3
NJS1-M Time Delay Relay
• NJS1-M Series Time Relay is applicable for controlling circuit @ A.C. 50Hz/60Hz, up to 240V rated supply voltage and up to D.C. 240V rated supply voltage as delay element to make or break circuit according to preset time.
NJYB1 Voltage Protection Relay
• This product is used in AC 50Hz three-phase four wire 220V circuit. • It can detect fault state as overvoltage, undervoltage, phase-failure and phase- sequence through advanced electronic circuit check, and provide reliable protection.
NJS1-M
NJYB1
NJS1 Time Delay Relay
• NJS1 Series Time-Delay Relay is applicable for controlling circuit @ A.C. 50Hz/60Hz, up to 380V rated voltage or up to D.C.240V rated voltage as delay element to make or break circuit according to preset time.
NJS1
XJ3 Phase-Failure and Phase-Sequence Protective Relay
NTE8 Time Delay Relay
• XJ3 series phase failure and phase sequence protection relay is used to provide overvoltage, undervoltage and phase failure protection in three-phase AC circuits and phase sequence protection in irreversible transmission devices and features reliable performance, wide application and convenient use. • The protector starts to function when it is connected to the power control circuit in accordance with the drawing. • When the fuse of any phase of the three-phase circuit is open or when there is a phase failure in the power supply circuit, the XJ3 operates immediately to control the contact to cut off the power supply of the AC contactor coil of the main circuit so that the main contact of the AC contactor operates to provide the load with phase failure protection. • When the phases of a three-phase irreversible device with predetermined phase sequence are connected incorrectly due to maintenance or change of the power supply circuit, the XJ3 series will identify the phase sequence, stop supplying power to the power supply circuit and achieve the goal of protecting the device.
• NTE8 Series time delay relay is applicable for controlling circuit AC 50Hz/60Hz, up to 230V rated voltage or up to DC 24V rated voltage as delay element to make or break circuit according to preset time. • This product meets the requirements of IEC60947-5-1. • Rated control supply voltage: AC110V, AC220V, AC230V, AC240V, AC380V, AC400V, DC24V Delay range:1s~100h,7 adjustable gears • Delay function: on-delay, off-delay, interval delay, off-delay/interval delay, equal period cyclical delay (ON start), equal period cyclical delay (OFF start), Trigger/interval delay, 7 adjustable gears 7 adjustable gears
XJ3
NTE8
• Dual LED indicator (Power indicator and action indicator) • 18mm modularized design, can be installed to distribution box
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