Solid State Relay

G3MC

381

Precautions

■ General Precautions

Do not touch the terminals of the SSR while power is being supplied

to the SSR. The terminals are charged with the power,

and an electric shock may be received by touching the terminals.

The built-in capacitor may have a residual voltage after the SSR

is turned off. Be sure to discharge the residual voltage before touch-

ing the terminals of the SSR, otherwise an electric shock

may be received.

■ Mounting

1. Make sure that no excessive voltage or current is imposed on or

flows to the input or output circuit of the SSR,

otherwise the SSR may malfunction or burn.

2. Solder the terminals of the SSR properly under the required sol-

dering conditions. The SSR may be abnormally heated and burn

if power is supplied to the terminals soldered incorrectly.

3. Do not short-circuit the load of the SSR while power is supplied to

the SSR. Do not short-circuit the power supply through the SSR.

The SSR may be damaged, malfunction, or burn if the load or

power supply is short-circuited.

■ Correct use

The terminals of the SSR are highly heat-conductive. Each terminal

must be soldered within 10 s at 260

°C or within 5 s at 350°C.

The SSR is of a thin-profile construction. To maintain the vibration

resistance of the SSR, make sure that the space between the SSR

and PCB is 0.1 mm maximum. Lifting of the PCB can be prevented

by setting the hole diameter of the PCBs on both sides slightly

smaller than the actual terminal dimension.

Select the model without the zero-cross function when using the Unit

for phase control output.

The casing works as a heat sink. When mounting two or more Units

closely, make sure that the Units are properly ventilated by taking

ambient temperature rises into consideration. If Units are closely

mounted and used in places with no ventilation, the load current of

each Unit must be 1/2 of the rated load current.

■ Protective element

No overvoltage absorption element is built in. Therefore, if the G3MC

is connected to an inductive load, be sure to connect the overvoltage

absorption element.

G3MC-

@@@PL (without Zero cross function)

G3MC-

@@@P (with Zero cross function)

Phototriac

Input

Load

Protective

element

(MOV)

Power

supply

Phototriac

Input

Load

Protective

element

(MOV)

Power

supply