HJTH series DC high current intermediate relay

HJTH Series DC High Current Intermediate Relay This series of static DC load intermediate relays has action indicators for protection and automatic control of power DC system operation to increase protection and control loop contact capacity and number of contacts.
HJTH series DC high current intermediate relay
HJTH-E22ML DC High Current Intermediate Relay
HJTH-9330 DC High Current Intermediate Relay
HJTH-E110 DC High Current Intermediate Relay




HJTH series DC high current intermediate relay

1. Features and Uses This series of static DC load intermediate relays has action indicators for protection and automatic control of power DC system operation to increase protection and control loop contact capacity and number of contacts. It is especially suitable for the auxiliary contact expansion of the circuit breaker and controls the on/off of the opening and closing coil.
2. Mounting structure Rail mounting 9. Rail mounting E housing. Refer to the external dimensions for specific dimensions.
3. Product model

4. Technical parameters
(1). Rated voltage: 110VDC, 110VAC, 220VDC, 220VAC
(2). Operating voltage: DC is not more than 70% of rated voltage, AC is not more than 80% of rated voltage
(3). Action time: Under the rated voltage, the main contact action time is less than 15ms, and the auxiliary contact is less than 25ms.
(4). Auxiliary power supply: subject to the physical label.
(5). Contact capacity:
Switchable 5A 220VDC resistive load, 3A 220VDC Ï„=5ms DC inductive load; 5A 110VDCÏ„=5ms DC inductive load.
ML type: main contact can switch 8A 250VDC resistive load, 3A 250VDC Ï„=5ms DC inductive load; 6A 110VDC Ï„=5ms DC inductive load.
When the main contacts are used in series, the maximum DC inductive load of 300VDC 3AÏ„=5ms can be disconnected.
The auxiliary contact can be connected to the 5A current for a long time. In the DC circuit with the voltage not more than 250VDC, the DC inductive load of τ=5ms 50W can be disconnected. In the AC circuit with the voltage not more than 250VAC, the COSФ=0.4 250VA can be disconnected. AC load.
(6). Power consumption: no more than 5W.
(7). Action time: the main contact is no more than 25ms, the auxiliary contact is no more than 30ms
(8). Insulation resistance: Measure the insulation resistance between each exposed live terminal and the case with a megohmmeter with an open circuit voltage of 500V. The insulation resistance is not less than 300MΩ.
(9). Medium strength: The power supply terminal and the outer casing can withstand the power frequency 2KV (effective value) 50Hz test voltage, no breakdown for 1 minute, no flashover.

5. Conditions of use
(1). Ambient temperature: -15 ° C -55 ° C;
(2). No conductive gas, no corrosive gas, no strong vibration;
(3). Working voltage: no more than 120% of rated voltage;
(4). Working position: Any
(5). Magnetic field strength: less than 0.5mT
(6). There must be no rain or snow, and there are anti-fog, dust-proof and sand-proof facilities.
6. Wiring diagram



HJTH series DC high current intermediate relay
HJTH-E22ML DC High Current Intermediate Relay
HJTH-9330 DC High Current Intermediate Relay
HJTH-E110 DC High Current Intermediate Relay

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