8952120000 Weidmuller, 8952120000 Datasheet - Page 91

• Manufacturer Part Number: 8952120000
• Description: SSR, DIN RAIL, 275VAC, 240VDC/240VAC 20A
• Manufacturer: Weidmuller

Specifications of 8952120000

• Control Voltage Type: AC
• Control Voltage Range: 110VDC To 240VDC / 150VAC To 240VAC
• Operating Voltage Range: 12VAC To 275VAC
• Peak Surge Current: 250A
• Load Current: 20A

Load circuit
The output circuit (load circuit)
As a rule, an operating voltage range is stated for the rated
switching voltage of opto modules and solid state relays (for
example 5 ... 48 V DC); it is not permitted to exceed or fall
below this value.
The same applies to continuous current. Exceeding this value
to often can result in premature wear-out and destruction of the
optos semiconductor.
As a direct correlation exists between the current and ambient
temperature a derating curve is provided for all opto modules
and solid-state relays.
Overvoltages are shunted by protective devices such as diodes
or varistors.
To prevent damage caused by current spikes (for example star-
ting or off pulses) some modules are equipped with a power
boost which is capable of carrying higher levels of current than
the maximum stated for a short period of time.
It is possible to connect AC or DC loads subject to the output
circuit having corresponding amplifier semiconductors.
DC output:
With a 2-pole DC output the connection terminals are to be
considered in the same manner as with a conventional switch.
All that is required is that care is taken to observe the predeter-
mined polarity.
With a 3-pole DC connection an auxiliary voltage assists the
output circuit to control the amplifying transistor more precisely.
Several applications also require this auxiliary voltage for short-
circuit protection in the interface or protective circuitry.
AC output:
To activate AC switching and control devices a semiconductor
is connected on the load side of the opto component to switch
the AC voltage (TRIAC or tyristor).
Output circuit
2-wire DC output
3-wire DC output
AC output
Optos – overview
Load circuit
Load circuit
Load circuit
Load circuit
Out
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