Lr2-Series Thermal Overload Relay Protection Jr28 Motor Relay for AC Contactor

• Customization: Available
• Theory: Thermal Relay
• Usage: Car Relay, Household Appliances Relay, Communication Relay, Lathe Relay, Motor
• Phase: 3
• Electricity Type: Ac
• Number of Pole: 3
• Load: Weak Power Relay
• Protective Characteristics: Sealed Relay
• Action Principle: Electromagnetic Type
• Size: Miniature
• Type: Electric Parameter Relay
• Transport Package: Carton Packing
• Trademark: ZKELE
• Origin: Liushi Wenzhou Zhejiang China
• HS Code: 8536300000
• Production Capacity: 3000000PCS

Product Description

 

Product Description

1.Product Description:

This series of thermal overload relay can be used in the circuit of 50Hz or 60Hz,rated insulation voltage 660V,rated current 0.1-93A for protecting the phase break when the electric motor is overload.

The relay has different mechanism and temperature compensation & can be pluged in CJX1-D series AC contactor.It is the most advanced thermal relay in the nineties in the world.The products comply with IEC 60947-5.

2.Specifications:

Type	Rated working current of thermal relay		Thermal component
			Rated current(A)	Rated or scale of
				rated current (A)
LR2-D13	25	LR2-D1301	0.16	0.10-0.16
		LR2-D1302	0.25	0.16-0.25
		LR2-D1303	0.4	0.25-0.40
		LR2-D1304	0.63	0.40-0.63
		LR2-D1305	1	0.63-1.0
		LR2-D1306	1.6	1.0-1.6
		LR2-D13x6	2	1.25-2.0
		LR2-D1307	2.5	1.6-2.5
		LR2-D1308	4	2.5-4.0
		LR2-D1310	6	4.0-6.0
		LR2-D1312	8	5.5-8.0
		LR2-D1314	10	7.0-10.0
		LR2-D1316	13	9.0-13.0
		LR2-D1321	18	12.0-18.0
		LR2-D1322	25	17.0-25.0
LR2-D23	36	LR2-D2353	32	23.0-32.0
		LR2-D2355	36	28.0-36.0
LR2-D33	93	LR2-D3353	32	23.0-32.0
		LR2-D3355	40	30.0-40.0
		LR2-D3357	50	37.0-50.0
		LR2-D3359	65	48.0-65.0
		LR2-D3361	70	55.0-70.0
		LR2-D3363	90	63.0-80.0
		LR2-D3365	93	80.0-93.0

 

 

3.Characteristics:

      A.Fundamental parameter of the main circuit
(a).Rated insulation voltage 660V.
(b).Rated working current 25,36,93A separately.
(c).The regulator seal of rated setting current and setting.
(d).Current of the thermal component.

      B.Auxiliary Circuit
(a).There is one pair of NO/ and N/C contact with electric insulation.
(b).Rated insulation voltage 500V.
(c).Rated frequency 50-60Hz.
(d).Use group, rated working voltage ,appoint thermal current and rated  current.

 

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±5oC
2	1.2	<2h			Heat state(Following the No.1 test)
3	1.5	<4min
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	Ambient temperature
	Any two phases	Another phase
1	1	0.9	>2h	Cold state	20±5oC
2	1.15	0	<2h	Heat state(Following the No.1 test)

auxiliary contact technical parameters are shown in the table below

Rated insulation voltage (Ui) V	380
Conventional heating current (Ith) A	5
Rated working current at 380V (le)A	0.47

Serial number	Setting current multiple	Action time		Starting condition	Ambient air temperature
1	1.05	No action within 2h		Cold start
2	1.2	Action within 2h		Hot state (after the serial number 1 test) start	20ºC±5ºC
3	1.5	10A	2min
		10 10A	4min 2s<Tp≤10s
4	7.2			Cold start
		10	4s<Tp≤10s

Structural features
In addition to overload protection and phase loss protection, this relay also has the following structural features:
1. Temperature compensation structure;
2. Action flexibility check;
3. Convertible manual reset or automatic reset device;
4. Manual A device that disconnects normally closed contacts.

WORKING CONDITIONS 
1. Altitude: no more than 2000m;
2. Ambient temperature: -50°C~+40°C, the average value of 24h does not exceed 35°C;
3. Relative humidity: no more than 50% when the highest temperature is +40°C , The maximum relative humidity is 90% (20ºC). Special measures must be taken for condensation on the product due to temperature changes;
4. Pollution level: 3;
5. The installation tilt angle between the installation surface and the vertical surface should not exceed ±5°, and there should be no significant vibration and impact at the installation site ;
6, the main circuit using the basic categories AC-3, AC-15 auxiliary circuit or DC-13, the operating frequency (average) 15 / h.