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DC Contactor ZJ50D NO-SP-ST

The ZJ50D contactor is rated at 50 amperes with a normally open single pole single throw configuration.  The ZJ50D is suitable for applications including UPS and Telecom Power Systems, Electric Vehicles and Frequency Converters.

The ZJ50D features single pole double breaking main contacts with silver alloy tips, which are weld resistant, hard wearing and have excellent conductivity.  The ZJ50D has M5 main stud terminals and coil connections are by means of M4 terminals.  Silver plating is provided as standard and Coil driver options include Standard,coil suppression and bracket options available.

  • Product Detail
InterruptedRating ( Ith )Uninterrupted
Thermal Current Rating - 50A
Intermittent Current Rating:
30% Duty - 90A
40% Duty - 80A
50% Duty - 70A
60% Duty - 65A
70% Duty - 60A
Rated Fault Current Breaking Capacity (Icn) 5ms Time Constant:
Blowouts -
No Blowouts -
Rated Fault Current Breaking Capacity (Icn) Resistive Load)
Blowouts -
No Blowouts 75A at 60V D.C.
Maximum Recommended Contact Voltages
Blowouts - -
No Blowouts - 60V
Typical Voltage Drop per pole across New Contacts at 100A 30mV
Mechanical Durability > 1,000,000 Cycles
Coil Voltage Available (Us) (Rectifier board required for A.C.) 12 - 120V


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