Subminiature Intermediate Power Relay

Model:NT72

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● 12A switching capability
● Plastic sealed and flux proofed types available
● RoHS Compliant
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Product Description

Features

Small size, light weight.

Reliable quality.

PC board mounting.

Suitable for household electrical appliances, automation system, electronic equipment, instrument, meter, telecommunication facilities and remote control facilities.

Ordering Information

1 Part number: NT72, NT72-2

2 Contact arrangement: A:1A B:1B C:1C

3 Enclosure: S:Wash tight NIL:Flux proof

4 Contact current: 3A,5A,6A,10A,12A

5 Coil rated voltage(V): DC:3,5,6,9,12,18,24,48

6 Coil power: 0.36:0.36W 0.45:0.45W 0.51:0.51W

Contact Data

Contact Arrangement		1A(SPSTNO) 1B(SPSTNC) 1C(SPDT(B-M))
Contact Material		AgSnO₂ AgCdO
Contact Rating(Resistive)		5A,10A,12A/125VAC,28VDC; 6A/300VAC,28VDC 3A,5A,10A/240VAC,250VAC
		Motor Load : 1/3HP 120VAC 1/3HP 240VAC
Max. Switching Power		336W 2500VA
Max. Switching Voltage		30VDC 300VAC	Max. Switching Current:15A
Contact Resistance		≤50mΩ	Item4.12 of IEC61810-7
Operational Life	Electrical	1×10⁵	Item 4.30 of IEC 61810 -7
	Mechanical	1×10⁷	Item 4.31 of IEC 61810-7

CAUTION:

1) For the intermediate current, it only applies to the room temperature.

Coil Parameter

Dash numbers	Coil voltage VDC		Coil resistance Ω±10%	Pick-up voltage VDC(max) (75%of rated voltage )	Drop-out voltage VDC(min) (10% of rated voltage)	Coil power W	Operate time ms	Release time ms
Dash numbers	Rated	Max.	Coil resistance Ω±10%	Pick-up voltage VDC(max) (75%of rated voltage )	Drop-out voltage VDC(min) (10% of rated voltage)	Coil power W	Operate time ms	Release time ms
003-360	3	3.9	25	2.25	0.3	0.36	≤7	≤4
005-360	5	6.5	69	3.75	0.5
006-360	6	7.8	100	4.50	0.6
009-360	9	11.7	225	6.75	0.9
012-360	12	15.6	400	9.00	1.2
018-360	18	23.4	900	13.5	1.8
024-360	24	31.2	1600	18.0	2.4
003-450	3	3.9	20	2.25	0.3	0.45	≤7	≤4
005-450	5	6.5	56	3.75	0.5
006-450	6	7.8	80	4.50	0.6
009-450	9	11.7	180	6.75	0.9
012-450	12	15.6	320	9.00	1.2
018-450	18	23.4	720	13.5	1.8
024-450	24	31.2	1280	18.0	2.4
048-510	48	62.4	4518	36.0	4.8	0.51

CAUTION:

1.The use of any coil voltage less than the rated coil voltage will compromise the operation of the relay.

2.Pickup and release voltage are for test purposes only and are not to be used as design criteria.

Characteristics

Insulation Resistance	500MΩ min (at 500VDC)	Item 4.11 of IEC 61810-7
Dielectric Strength
Between Contacts	50Hz 1500V	Item 4.9 of IEC 61810-7
Between Contact and Coil	50Hz 2500V 4000V(NT72-2)	Item 4.9 of IEC 61810-7
Shock Resistance	98m/s² 11ms	Item 4.26 of IEC 61810-7
Vibration Resistance	10Hz~55Hz Double amplitude 1.5mm	Item 4.28 of IEC 61810-7
Terminals Strength	10N	Item 4.24 of IEC 61810-7
Ambient Temperature	-40℃~85℃
Relative Humidity	5% to 85%	Item 4.16 of IEC 61810-7
Mass	11g	Item 4.7 of IEC 61810-7

Safety Approvals

Safety approval	UL&CUR	TüV	CQC
Load	12A/125VAC, 28VDC 10A/240VAC ; 6A/300VAC 1/3HP 120VAC 240VAC	10A/250VAC 28VDC	5A/250VAC

Dimensions(mm)

CAUTION

In case of no tolerance shown in outline dimension: outline dimension ≤1mm tolerance should be ±0.2mm outline dimension >1mm and ≤5mm, tolerance should be ±0.3mm; outline dimension >5mm, tolerance should be ±0.4mm.

Reference Data

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Contact Info

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Address

NO.11, 125 Lane, Qi-Wen Road, Haishu District, Ningbo, Zhejiang, China, 315012
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Tel

+86-574-87483123
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E-mail

sales@forward-relays.com

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