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Ac Current Relay

◆ Dust-proof&Sealed type
◆ In accordance with RoHS-Directive
◆ Dimension: 32*27.2*20mm
◆ Support coil voltage 24V, 110V, 220V,240, 277V

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Description

1 Product Introduction of ac current relay

Product Features :

◆ High load switching capability: 40A

◆ 2500VAC&4000VAC is valid for isolating strength between contact and coil

◆ Coil insolation Rank Class F

◆ Contacts forms NO,NC&SPDT

◆ Dust-proof&Sealed type

◆ In accordance with RoHS-Directive

◆ Dimension: 32*27.2*20mm

◆ Support coil voltage 24V, 110V, 220V,240, 277V

Relay model Defining guide :

NB90 E -220 S -S -A 4 W 4KV L T-105℃ X

1 2 3 4 5 6 7 8 9 10 11 12

1: Relay Model 2: NO max load 30A, none: 40A 3: Coil rated voltage 4: package S: Sealed, D: dust proof.

5: Contact Material: S:AgSnO2 C:AgCdO 6: Contact Form: A:Normally Open B:Normally Close C:SPDT(NO&NC)

7: Pin Form: A4:Normally open(4 pins), A5:Normally open(5 pins); B4:Normally close(4 pins), B5:Normally colse(5 pins); C5:SPDT(5 pins), C6:SPDT(6 pins).

8: W: white None: black 9: 4KV: Dielectric Strength between contact and coil 4000VAC none: Dielectric Strength between contact and coil 2500VAC

10: L: coil power consumption 600mW, none: 900mW 11: T-105℃: ambient temperature 105℃ none: normal ambient temperature

12: X: customer used code

Overview

Every detail is designed carefully, focusing on quality, making products carefully and using them for a long time. Ac Current Relay is suitable for overload and open phase protection of AC 50Hz three-phase motor. The relay can protect the motor with a starting time of up to 90 seconds. The relay adopts LED nixie tube display, which has the obvious advantages of intuitive display, convenient use, small volume, simple installation and so on.

Our Ac Current Relay is applicable to production lines such as printing, packaging, plastics, food and metallurgy, and occasions requiring remote observation data and automatic control of production process. It is compact and easy to use and install. Reading is intuitive and clear without conversion. It is widely used and has won a good reputation.

2 Parameter form of ac current relay

Contact Rating
Contact Form	1A,1B,1C
Contact Material	AgCdO AgSnO2
Contact Load Capacity	NB90			NB90E
	40A 240VAC/30VDC 40A 277VAC 1.5HP 1HP 240VAC TV-5 TV-15			30A/20A 240VAC/30VDC 30A 277VAC 1HP 1/2HP 240VAC TV-5
Switching Power Max.		1200W 11000VA
Switching Voltage Max.		30VDC/277VAC
Switching Current Max.		40A
Contact Resistance Max.		50mΩ(1A ,24VDC)
Life expectancy		Electrical	40A: 2x104 30A: 2x104

		Machanical	10 7

Safety Certification
Approval	CQC	UL
Load	40A 240VAC 30VDC	40A 277VAC 1.5HP 240VAC, TV-5

Coil Rating
Coil Voltage		Coil Resistance Ω±10%	Pick up (VDC) Max. (75% of Rated Voltage)	Drop out (VDC) Min.(10% of Rated Voltage)
Rated	Max.
Rated	Max.
24	31.2	120	18	7
110	143	2360	83	33
120	156	3040	90	36
220	286	13490	165	66
240	312	13490	180	72
277	360	15000	208	83

Technical Rating
Insulation Resistance		Min.1000MΩ(500VDC)	IEC 60255-5
Dielectric Strength	Between Contacts	1500VAC, 50/60Hz 1min; Max 4000 VAC	IEC 60255-5
	Between Coil&Contact	2500VAC 50/60Hz Min; (4000VAC Min without Pin #6,when required)	IEC 60255-5
Operate Time		≤15ms
Release Time		≤10ms
Shock Resistance		Operation extremes 10G Damage limits 100G	IEC 68-2-27 test Ea
Vibration Resistance		10Hz～55Hz double amplitude 1.5mm	IEC 68-2-6 test Fc
Ambient Temperature		﹣55℃～85℃;﹣55℃～105℃
Relative Humidity		85% RH , 40℃	IEC 68-2-3 test Ca
Weight		Approx.26.0g
Package		Sealed;Dust-proof type