300A High-Voltage DC Relay

Model:NFGV300

●300A continuous current-carrying capacity at 85 °C
●Ceramic-sealed contacts, IP67-rated
●Insulation resistance: 1000 MΩ (at 1000 VDC); dielectric strength between contacts and coil of 3 kV; IEC 60664-1 compliant

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Product Description

Features

■ The contact part is ceramic-sealed and can meet the IP67 protection rating.

■ The insulation resistance is up to 1000 MΩ (1000 VDC), and the dielectric withstand voltage between the contact and the coil is up to 3 kV, IEC 60664-1 compliant.

■ Used for high-voltage DC switching circuits in new energy storage.

Ordering Information

1 Part number NFGV300

2 Load voltage(V)

450:450VDC 750:750VDC 1000:1000VDC

3 Coil voltage(V) DC:12,24

4 Contact arrangement : H:1 Form A

5 Coil connection : C:Connector6 Load connection : 5:Female thread

Contact data

Contact Arrangement	1H
Contact Material	Copper Alloy
Contact Rating	300A
Min. Applicable Load	1A/12VDC
Max. Breaking Current	2000A/300VDC( ≥ 1cycle)
Rated Load Voltage	450VDC, 750VDC, 1000VDC

Performance Specificating

Contact Resistance	≤0.5mΩ(300A)
Electrical Endurance (Breaking)	≥ 1 × 10³ (300A /450VDC, ON:OFF=0.6s:5.4s)
	≥ 5 × 10² (300A /750VDC, ON:OFF=0.6s:5.4s)
	≥ 2 × 10² (300A /1000VDC, ON:OFF=0.6s:5.4s)
Mechanical Endurance	≥ 2 × 10⁵

Coil Parameter

Coil voltage VDC	Coil resistance Ω ±10%	Pick-up voltage VDC	Drop-out voltage VDC	Max. Allowable voltage VDC	Coil power W	Operate time ms	Release time ms
12	24	≤9	≥ 1	18	6	≤30	≤ 10
24	96	≤ 18	≥2	36	6	≤30	≤ 10

Notes1. Standards test condition :

Temperature: (23±5)℃

Humidity: (25%~75%)RH

Direction of measurement: Terminalsup position is standard position

Characteristics

Insulation Resistance			1000MΩ (1000VDC)
Dielectric Strength Between Open Contacts Between Contact and Coil			3000VAC(50Hz,1min) Leak Current 1mA 3000VAC(50Hz,1min) Leak Current 1mA
Vibration Resistance			10Hz~500Hz 49m/s² (5G)
Shock Resistance	Stability	Application: Vehicle	ON: 196m/s² (20G), Half Sine 11ms, Testing Time:10μs OFF: 98m/s² (10G), Half Sine 11ms, Testing Time:10μs
	Durability	Application: Vehicle	490m/s² (50G), Half Sine 6ms
Operating Ambiance Temperature²			-40℃ ~ 85℃
Operating Ambiance Humidity			5%~85% (No ice or Frosting)
Pressure			86kPa ~ 106kPa
Weight (Approx.)			370g

Notes2. The product storage locationshall not be exposed to corrosive gas. Avoid direct sunlight on the products.

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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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