50A DC Contactor, 12V/24V/48V

50A DC contactor with normally open and normally closed main contact, designed for direct current loads, particularly for electric vehicles, telecommunication equipment, car batteries, trains, ships, and electronic control systems.

Features

• The DC contactor has the characteristics of small size, large load capacity, long service life and simple maintenance, and is very popular among users.
• 50 amps contactor complies with the requirements of the ministry standards JB2286-78, JB3974-85, YD/585-92, YD/T512-92. It has been tested in the factory and by relevant testing units and meets the requirements of the ministry standards. It has been used by users for many years to satisfy users to the maximum extent. Needed, reliable quality.
• 50A DC contactors are suitable for electric forklifts, battery trucks, tractors, excavators, brick making machines, cleaning vehicles, automotive air conditioners, communication power supplies, switch control of electronic control circuits of uninterruptible power supplies, electroplating power supplies and other systems.

Specifications

Load Characteristic Curve

Installation Dimension Diagram

Wiring Diagram & Temperature Rise Curve Graph

Mechanical Capabilities and Usage Environment

Tips: Different Functions between contactor and relay

The primary function of a relay is to detect, transmit, convert, or dispose of the signal, it's on-off current is generally small. The relay is usually used in a control circuit to control the weak signal.
The primary function of a contactor is to connect or disconnect the main circuit. The main circuit refers to the one whose working situation is determined by the connection of this circuit. The concept of main circuit corresponds to the control circuit, generally, the current of a main circuit is larger than that of a control circuit.
In general, a contactor with a large capacity is equipped with an arc chute. The contact capacity of a relay will not exceed 5A, that of a midget relay may be 1A or 2A. However, the minimum contact capacity of a contactor could be 9A. Contacts of the contactor usually have three pairs of main contacts (the main contacts are normally open contacts), it also has several pairs of auxiliary contacts.
However, contacts of a relay is generally not divided into main contacts or auxiliary contacts. Sometimes, contacts of a relay are set in pairs, namely the normally open contacts and normally closed contacts are combined, while those of a contactor are not in pairs. As for specific needs, the relay will combine with other equipment into a time relay, a counter, or a pressure relay, which has additional functions, but a contactor doesn't have.