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- Accept a time proportioned or
on/off signal from a controller
- Operate at smaller cycle times
to reduce wear
- Ideal where tight process control
is required
- Resistant to shock and vibration
- Accept AC or DC control input
voltages with AC or DC output at 10 to 75A
- Available for both general purpose
or heavy-duty, which can operate on higher voltage and withstand
high currents and harsh environments
- Other features include photo
isolation, 600 volt blocking voltage, 2500 volt isolation, zero
voltage turn-on, built-in snubber, and high surge capability
- Compact in size, measuring 57
x 44 x 22mm
- Available in a number of configurations
and mounting options
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| Solid-State
Relays (SSRs) are electronic switching devices that accept a time
proportioned or on/off signal from a controller. Rapid cycling can
wear out electro-mechanical relays, whereas SSRs operate at much
smaller cycle times. Therefore, SSRs can be employed where extremely
tight process control is required and when durability is a necessity.
The life of a heating element is increased considerably when the
on/off cycle that is used to time-proportion the heater is kept
at 1 or 2 seconds, or less, thus reducing the thermal expansion
and contraction of the element. The fast cycling SSRs ensure longer
heater life at lower cost. In addition, temperature control is optimized
with the faster cycling SSRs compared to electro-mechanical relays.
Since SSRs have no moving parts,
mechanical failure is eliminated. They are resistant to shock
and vibration and are durable if operated within the tolerable
ambient temperatures. Heat-sinks will efficiently dissipate the
heat thereby increasing each unit’s life.
Featuring state-of-the-art surface
mount technology, SSRs come in a number of configurations with
different mounting options. They are compact, typically measuring
57(H) x 44(W) x 22(D)mm. They accept AC or DC control input voltages
with DC or AC output at 10-75A. They are available in both general
purpose and heavy duty styles. Heavy duty style SSRs operate on
higher voltage (480V AC) and will withstand high currents and
harsh industrial environments. Other features include photo isolation,
600 volt blocking voltage, 2500 volt isolation, zero voltage turn-on,
built-in snubber, and high surge capability.
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