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NR500A DC Contactor

NR500A DC Contactor for the generator has silver alloy contacts, all-copper coils, and is compact in size. It is used in generators of electric vehicles. The main contact DC contactor is a normally open one.

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Ordering Notice

For example: NR500A/12V
The DC contactor of main contact is one NO, rated voltage not more than DC 80V, current 500A, coil

Basic Technical Parameters (at normal conditions)
Electric Parameters
Contact type	One pair of bridge type moving open (NO) contacts	Instantaneous maxi (closing) current	2000A, ≤1s
Rated voltage of contacts (DC)	≤80V	Insulation resistance(MΩ)	≥100
Rated current of contacts (A)	500	Dielectric withstand voltage	1500V,p.f. 1min, no breakdown
Voltage drop on contacts(mV)	≤80(at 100A)	Electric cycles (104)	≥2
Coil voltage specification(DC)	15V	Mechanical cycles (104)	≥30
DC power consumption of coil (W)	≤10.5	Temperature rise on outgoing terminal	≤65
Pickup voltage(DC)	≤70%Ue(Positive power up)	Temperature rise of coil(K)	≤85
Release voltage(DC)	≥5%Ue;≤40%Us	Insulation grade of enameled wire	Class B (130°C)
Pickup time(ms)	≤30	Material of contact	AgCuO(10)/Cu
Release time(ms)	≤50	Working duty	Continuous operating duty
Mechanical/Ambient Conditions
Torque of outgoing terminal on contact M8(N.m)	≯8.5N appropriate	Protection grade	IP50
Coil lead end thickness(mm)	≯1.2 appropriate	Mounting methods	Freely
Working temperature	(-25~+55)°C	Vibration	Sine shock: 2.5g, (5~50) Hz
Mounting altitude	≤2Km	Impact	50g,11ms(Half sine)
Conversion Table for Coil Specification(20°C)
Voltage(V)	Coil resistance(1±10%)Ω	Voltage(V)	Coil resistance(1±10%)Ω
12	14.1	36	136.5
15	22	48	235.5
24	60.5	72	516

Outline and Mounting Picture

Basic size(mm)	Tolerance size(mm)
0～30	±0.2
30～60	±0.3
60～100	±0.5
＞100	±0.1

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NR500A DC Contactor
ApplicationNR500A DC Contactor for the generator has silver alloy contacts, all-copper coils, and is compact in size. It is used in generators of electric vehicles. The main contact DC contactor is a normally open one.Ordering NoticeFor example: NR500A/12VThe DC contactor of main contact is one NO,

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