40A Latching Relay For Quick-connect and PCB Terminals

Model:NT91L

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● 40A switching capability
● Single coil and dual coil available
● Energy Saving
● Environmental friendly product
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Product Description

Features

Single and double coils magnet latching relay available.

Switching capacity up to 40A.

Energy saving and enviromental friendly product.

Ordering Information

1 Part number NT91L

2 Load 30A,40A/277VAC Resistive load
3000W 240VAC Incandescent Lamp
5A/280VAC Electronic ballast
2HP 250VAC Motor load

3 Contact arrangement A:1A B:1B C:1C

4 Enclosure S: Wash tight E: Flux proof

5 Coil rated voltage(V) 5,12,24,48

6 Coil power 0.9:0.9W

7 Coil NIL:Single coil; D: Double coils

8 High H:Standard L:Low profile type

Contact Data

Contact Arrangement		1A(SPSTNO) 1B(SPSTNC) 1C(SPDT(B-M))
Contact Material		AgSnO₂
Contact Rating (Resistive)		30A/277VAC 40A/277VAC Incandescent Lamp :3000W 240VAC Electronic Ballast:5A/280VAC Motor Load:2HP 250VAC
Max. Switching Power		11000VA
Max. Switching Voltage		440VAC	Max. Switching Current :20A
Contact Resistance		≤20mΩ	Item 4.12 of IEC 61810-7
Operation	Electrical	5×10⁴	Item 4.30 of IEC 61810-7
Life	Mechanical	1×10⁶	Item 4.31 of IEC 61810-7

Coil Parameter

1 Coil
Dash numbers	Rated voltage VDC	Coil resistanceΩ±10%	Set/Reset voltage VDC (80%of rated voltage)	Operating voltage range VDC	Plus duration ms	Coil power W	Set time ms	Reset time ms
005-900	5	28	4.0	5~6	≥50	0.9	≤15	≤15
012-900	12	160	9.6	12~14.4
024-900	24	640	19.2	24~28.8
048-900	48	2560	38.4	48~57.6
2 Coils
Dash numbers	Rated voltage VDC	Coil resistance Ω±10%	Set/Reset voltage VDC ( 80%of rated voltage)	Operating voltage range VDC	Plus duration ms	Coil power W	Operate time ms	Reset time ms
005-1800	5	2×14	4.0	5~6	≥50	2×1.8	≤15	≤15
012-1800	12	2×80	9.6	12~14.4
024-1800	24	2×320	19.2	24~28.8
048-1800	48	2×1280	38.4	48~57.6

CAUTION:

1. When latching relays are installed in equipment, the latch and reset coil should not be powered simultaneously. Coil should not be pulsed with less than the nominal coil voltage and pulse width should be a minimum of three times the specified operate time of the relay. If these conditions are not followed, it is possible for the relay to in be the magnetically neutral position .

2. Switching voltage is for test purpose only and are no to be used as design criteria.

Characteristics

Insulation Resistance	1000MΩ min (at 500VDC)	Item 4.11 of IEC 61810-7
Dielectric Strength
Between Contacts	50Hz 1500VAC	Item 4.9 of IEC 61810-7
Between Contact and Coil	50Hz 2500V 4000V(Without Pin 6) 1min	Item 4.9 of IEC 61810-7
Creepage Distance	8.4mm
Shock Resistance	196m/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	31g Low profile type 35g	Item 4.7 of IEC 61810-7

Safety Approvals

Safety approval	UL&CUR	CQC
Load	30A 40A/277VAC	30A 40A/277VAC

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.

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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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