KXR28 thermal overload relay series

10.0 USD

Min. Order:	100 Piece/Pieces
Trade Term:	FOB
Payment Terms:	L/C, T/T, WU
Supply Ability:	100000PCS/PER MONTH
Place of Origin:	Zhejiang

Company Profile

JINAN STAR ELECTRIC EQUIPMENT CO., LTD

Location:	Wenzhou, Zhejiang, China (Mainland)
Business Type:	Manufacturer, Trading Company, Agent
Main Products:	Distribution Box, Low Voltage Switchgear Cabinet

Product Detail

Model No.:	KXR28-25/36/93
Means of Transport:	Ocean, Air, Land
Type:	Others
Poles Number:	3
Brand Name:	CHKX
Rated working current Ie(AC-3 (380V)):	9-95
Rated working current Ie(AC-3 (6600V)):	6.6-49
Rated working voltage(Ue)V:	690,380
Rated isolating voltage(Ui)V:	690
Auxiliary contact conventional free air heating current Ith (A):	10
Action mechanic:	directing acting type
Installation altitude:	can't exceed 2000m
Pullution degree:	III
Installation degree:	III
Power supply frequency:	50,60
Production Capacity:	100000PCS/PER MONTH
Packing:	Neutral or customized
Delivery Date:	30 days or customized

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Product Description

KXR28 thermal overload relay series

◎Summarization

◆KXR28 series thermal overload relay (hereinafter referred tor as thermal relay) apply to AC 50Hz/60Hz, rated voltage till 660V, current 0.1-93A AC electric motor permanent working or discontinuous permanent working for overload or open-phase protection.

◆Thermal relay have open-phase protection, temperature compensation, operation indication, auto and manual reset and stop function, reliable action. Can plug-in install with contactor, also can install it independently and combined with relative AC contactor to consist of electromagnet starter.

◆According to GB14048.4, GB14048.5, IEC60947-4-1 etc standard,

◎Model and meaning:

◎Structure feature:

◆Three phase sheet metal type, trip type 10A

◆Have open-phase and overload protection

◆Have setting current continuous adjustable device

◆Temperature compensation

◆Operating indication

◆Test mechanism

◆With stop button

◆With auto and manual reset button

◆On the device have separable one normally open and one normally close contact

◆Installation method: plug-in install with contactor or install independently

◎Normal working criteria

◆Altitude: not exceed 2000m

◆Surrounding air temperature: -5℃～40℃, and 24h's average temperature should lower than +35℃

◆atmospheric conditions: Atmospheric relative humidity should lower than 50% when the temperature is +40℃, higher relative humidity is acceptable when the temperature lower than +40℃, max relative humidity can reach 90% when the temperature at +20℃, should have special policy in condensation condition which may caused by temperature changing.

◆Pollution degree: III

◆Installation surface vertical gradient can't exceed 5°

◆The place should without explosion dangerous media/neurogen, and the media should without corrosive goods to metal and damage goods to isolator and no conducting dust

◆The place should have anti snow and rain device and shouldn't full of vapour

◆ The place shouldn't have obvious shake, shock and impact

◎Main technical parameter

◆Protection characteristic

Item	No.	Rated current multiple		Action time	Testing criteria
	1	1.05		Non action in 2h	Cold start
Overload protection	2	1.2		Action in 2h	Hot(after No. 1) start
Overload protection	3	1.5		Action in 2m	Hot(after No. 1) start
	4	7.2		2s﹤Tp≤40s	Cold start
Open-phase protection	5	Any two phase	Third phase	Non action in 2h	Cold start
	5	1.0	0.9	Non action in 2h	Cold start
	6	1.15	2	Action in 2h	Hot(after No. 1) start

◆Trip characteristic:

This current-time curve indicate from cold to trip time and real current and setting current multiple relationship. While running current is 1.0Xle, trip time shortened to 25%. Trip curve 3 suit for 3P load, trip curve 2 suit to 2P load, for single phase load, trip curve is between 2 and 3. For general running condition, thermal trip mechanism 3PCS bimetal need to be heated. While thermal relay used for protect single phase or DC load should in series three main contact, this moment is suitable for curve 3. Three phase to load trip current is 105%-120% to setting current.

◎Curve drawing

◆model selection and order data:

Model No.	Rated current (A) In	IEC60947-4(A)		Matched contactor model
Model No.	Rated current (A) In	aM	gG	Matched contactor model
KXR28-25	0.1-0.16	.25	2	KXX2-09 KXX2-12 KXX2-18 KXX2-25 KXX2-32
	0.16-0.25	0.5	2
	0.25-0.4	1	2
	0.4-0.63	1	2
	0.63-1	2	4
	1-1.6	2	4
	1.25-2	4	6
	1.6-2.5	4	6
	2.5-4	6	10
	4-6	8	16
	5.5-8	12	20
	7-10	12	20
	9-13	16	25
	12-18	20	35
	17-25	25	50
KXR28-36	23-32	40	63	KXX2-32
KXR28-36	28-36	40	80	KXX2-32
KXR28-93	23-32	40	63	KXX2-40 KXX2-50 KXX2-65 KXX2-80 KXX2-95
	30-40	40	100
	37-50	63	100
	48-65	63	100
	55-70	80	125
	63-80	80	125
	80-930.25	100	160

◆Main technical data:

Item	KXR28-25	KXR28-36	KXR28-93
Current degree	25	36	93
Rated isolating voltage(V)	660	660	660
Open-phase protection	with	with	with
Auto and manual reset	with	with	with
Temperature compensation	with	with	with
Trip indication	with	with	with
Testing button	with	with	with
Stop button	with	with	with
Installation method	Plug in type, independently type	Plug in type, independently type	Plug in type, independently type
Auxiliary contact	1 NO+ 2 NC	1 NO+ 2 NC	1 NO+ 2 NC

◎Overall installation size

◆Accessory instruction

Name	Usage
KXR28-25 installation base	KXR28-25 as independent installation product
KXR28-36 installation base	KXR28-36 as independent installation product
KXR28-93 installation base	KXR28-93 as independent installation product