Specification

High voltage high frequency dc solid state relay

Part numbers	GDZ08GY; GDZ08GD (for inductive load)
Control Voltage	12 to 15VDC, 18 to 36VDC
Control Current	60 to 160mA, 50 to 140mA
Under-voltage Protection	Self-lock at <10VDC for 12V supply, Self-lock at <16VDC for 18V supply
Operating Indicator	LED
Switching Time	≤ 0.45ms
Maximum Voltage	2400V
Maximum Current	20 to 200A
On-state Voltage Drop	≤ 8.8V
Off-state Voltage	≥ 2400V
Over-voltage Protection	Transient 2000V
Over-temperature Protection	100°C
Isolation Voltage	≥ 2500V
Insulation Voltage	≥ 2500V
Operating Temperature	-30 to 75℃
Power Frequency	10 to 1000Hz
Cooling Conditions	Heat sink with fan required
Load Current Safety Factor	Resistive load: 2-3 times, Inductive load: 3-4 times of load current

With extra power supply

Part numbers	GDZ08CGY;GDZ08CGD (for inductive load)
Control Power Supply	12 to 15VDC/2W, 18 to 36VDC/2W
Control Voltage	4 to 32VDC
Control Current	10 to 25mA
Operating Indicator	LED
Switching Time	≤ 0.25ms
Maximum Voltage	2400V
Maximum Current	20 to 200A
On-state Voltage Drop	≤ 8.8V
Off-state Voltage	≥ 2400V
Over-voltage Protection	Transient 2000V
Over-temperature Protection	100°C
Isolation Voltage	≥ 2500V
Insulation Voltage	≥ 2500V
Operating Temperature	-30 to 75℃
Power Frequency	10 to 1000Hz
Cooling Conditions	Heat sink with fan required
Load Current Safety Factor	Resistive load: 2-3 times, Inductive load: 3-4 times of load current

Notes while using

Since the load voltage of a DC solid-state relay is equal to its off-state voltage, and the load current is at its maximum value at room temperature, a margin should be left when selecting one. For resistive loads: the current should be chosen at 2.5 to 4 times the load current, and the voltage should be chosen at 2 to 3 times the load voltage. For inductive loads: the current should be chosen at 4 to 6 times the load current.

The actual load current is greatly related to the ambient temperature. When the ambient temperature is high or the cooling conditions are poor, the current capacity should be increased. To prevent a load short circuit during use, it is required to add an overload protector in the load circuit.

For inductive loads, the GDZ08GY/GDZ08CGY model must have a flyback diode connected across both ends of the load to prevent damage to the solid-state switch by over-voltage. The GDZ08GD/GDZ08CGD model has an integrated flyback diode, so it can be used directly with inductive loads without adding a separate flyback diode.

The heat sink that comes with this product must have a flat and clean contact surface, and a layer of thermal conductive silicone grease should be applied to its surface. When fixing, screws should be tightened symmetrically with spring washers and flat washers to prevent loosening due to thermal expansion and contraction.

Links

High frequency dc solid state relay, the application and features you may know.

Product Details

Optical-magnetic coupling isolation between input and output circuits.
Control signal interfaces with PLC, TTL, PWM signals.
LED indicator for working status.
Solid-state, contactless switch output, no sparks or arcing during switching.
Built-in protection features for under-voltage, over-voltage, and over-temperature.
Encapsulated in epoxy resin, providing corrosion resistance, shock resistance, and reliable operation.
The product is mainly used for industrial control of DC high-voltage, high-current, high-power switching electrical equipment.

FAQ

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