Product Details

Charging and discharging DC Solid State Relays (2NO)

Optical-magnetic isolation between input and output circuits.
Light Emitting Diode (LED) indicates the working status.
The output end consists of two sets of normally open, contactless bidirectional DC solid-state switches.
Output is non-polarized, compatible with both AC and DC power supplies, and easy to install.
The GZ20SL/GZ20CSL model features automatic protection against overcurrent and short circuits.
Utilizes solid encapsulation for corrosion and shock resistance, ensuring stable and reliable operation. The product is used as a charging and discharging switch for electric vehicles or battery power supplies.

Specification

Part numbers	GZ20S/GZ20SL
Control Voltage	12-15 VDC, 18-36 VDC
Control Current	≤ 80 mA
Start Current	≥ 60 mA
Turn-off Voltage	For 12-15VDC ≤10VDC, For 18-36VDC ≤12VDC
Switching Time	≤ 0.35 mS
Maximum Voltage	60V, 100V, 200V, 600V, 1200V
Maximum Current	30-200A
On-state Voltage Drop	for 60V, ≤0.5V; for 100V, ≤0.8V; for 200V, ≤1.5V; for 600V, ≤ 4.2V; for 1200V, ≤5.0V
Off-state Voltage	Same as Maximum Voltage
Overload Protection	GZ20SL:protection current: 50% of rated current
Isolation Voltage	≥ 2000 V
Insulation Voltage	≥ 2500 V
Operating Temperature	-30 to 75 ℃
Power Frequency	10-1000 HZ
Cooling Conditions	Heat sink plus axial fan
Load Current Safety Factor	Resistive load: 2-3 times, Inductive load: 3-4 times of nominal current.

With control power supply

Part numbers	GZ20CS/GZ20CSL
Control Power Supply	12-15 VDC/1W, 18-36 VDC/1W
Control Voltage	4-32VDC
Control Current	≤ 25 mA
Turn-off Voltage	For 12-15VDC ≤10VDC, For 18-36VDC ≤12VDC
Switching Time	≤ 0.15 mS
Maximum Voltage	60V, 100V, 200V, 600V, 1200V
Maximum Current	30-200A
On-state Voltage Drop	for 60V, ≤0.5V; for 100V, ≤0.8V; for 200V, ≤1.5V; for 600V, ≤ 4.2V; for 1200V, ≤5.0V
Off-state Voltage	60V, 100V, 200V, 600V, 1200V
Overload Protection	GZ20CSL:protection current: 50% of rated current
Isolation Voltage	≥ 2000 V
Insulation Voltage	≥ 2500 V
Operating Temperature	-30 to 75 ℃
Power Frequency	10-1000 HZ
Cooling Conditions	Heat sink plus axial fan
Load Current Safety Factor	Resistive load: 2-3 times, Inductive load: 3-4 times of nominal current.

Notes while using

Allow for different margins in current rating based on the nature of the load. (For resistive loads, choose 2-3 times the load current. For inductive or capacitive loads, choose 3-4 times the load current.)
The actual load current is greatly influenced by the ambient temperature. When the ambient temperature is high or the heat dissipation conditions are poor, increase the current capacity. To prevent short circuits in the load circuit during use, overload protection should be added. For specifications above 600V, GZ20SL/GZ20CSL current-protected solid-state relays can be used as an option.
To prevent the generation of inductive counter electromotive force due to long output power lines, overvoltage protectors should be connected in parallel at the output end to protect the solid-state switch from damage during overvoltage. The selection of metal oxide varistors (MOV): choose a value of 80% of the rated voltage of the solid-state relay.
The contact surface between the matching heat sink and this product must be flat and smooth. Apply a layer of thermal conductive silicone grease on the surface. When fixing it, tighten the screws symmetrically with spring washers and flat washers to prevent loosening due to thermal expansion and contraction of the screws.
Ensure that the screws are properly tightened to prevent loosening due to thermal expansion and contraction.

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