Panel Solid State Relays
Description
Panel Solid State Relays (SSRs) are electronic switching devices that control power to a load circuit without the use of moving parts. They are designed to be mounted on electrical panels and provide a reliable means of switching electrical loads on and off.
Working Principle
Panel Solid State Relays operate by using semiconductor devices such as TRIACs or MOSFETs as the switching elements. These components allow the relay to switch the load circuit on or off in response to a control signal, typically from an optically isolated driver. The absence of mechanical parts in SSRs results in faster switching times and reduced wear and tear, making them highly reliable and suitable for applications requiring frequent switching. The optically isolated design ensures that there is no direct electrical connection between the input and output circuits, enhancing safety and reducing the risk of electrical interference.
Applications
Panel Solid State Relays are used in a variety of specific applications. In the food and beverage industry, they are employed in cooking ovens, coffee machines, warming trays, and warming displays to control heating elements efficiently and reliably . They are also suitable for use in industrial systems where precise control of electrical loads is necessary.
Advantages over other Solid State Relays
Panel Solid State Relays offer several advantages over other types of solid state relays. They are designed with a high-endurance capability, providing enhanced operational reliability and an extended service life of up to approximately 750,000 life stress cycles for advanced models, and up to 350,000 cycles for basic models . This makes them particularly suitable for demanding applications where long-term reliability is crucial. Additionally, they offer versatile performance with ratings from 10 A to 90 A and the flexibility of AC or DC control, catering to a wide array of power requirements .
Limitations
One of the limitations of Panel Solid State Relays is the high power dissipation due to conduction losses in the power switches, such as TRIACs or SCRs, which can result in a residual high forward voltage drop when in conduction mode . This can lead to increased heat generation and may require additional cooling measures, such as heat sinks, to maintain optimal performance.
Considerations
When considering the use of Panel Solid State Relays, it is important to evaluate factors such as initial costs, operating expenses, and durability. While SSRs generally have higher initial costs compared to electromechanical relays, their longer service life and reduced maintenance requirements can offset these costs over time. The absence of moving parts contributes to their durability and reliability, reducing the need for frequent replacements. However, the high power dissipation and potential need for heat sinks can impact operating expenses. Additionally, the accuracy of switching and the specific requirements of the application should be considered to ensure the chosen relay meets the necessary performance criteria.
from Tempco Electric Heater Corporation
Tempco TPC Portable Temperature Control Consoles are quality built self-contained systems for monitoring and controlling process temperatures in a wide range of fixed or portable applications. These 1- to 4- zone units use our reliable next generation TEC-9100 1/16 DIN auto-tuning fuzzy logic PID... [See More]
- Mounting: Panel
- Input Voltage (Control Signal) Type: AC; DC
- Application Type: General
- Output Voltage Type: AC
from Finder S.p.A. con unico socio
Type 77.25 Solid State “Hockey Puck ” Relays for panel mounting, with Zero-crossing switching, output: 25 A/230 V AC. Designed for the following applications: Resistive loads. Features include: “Hockey Puck ” style. 24 to 240 V AC output. Zero-crossing version available. High... [See More]
- Mounting: Panel
- Input Current (Control Signal) Range: 25
- Input Voltage (Control Signal) Range: 600
- Output Voltage Type: AC
from Backer Hotwatt Inc.
Features: 3-32 VDC Input. 600 volt blocking voltage. 4000 volt isolation. Zero voltage turn-on. Built-in snubber. 100% tested at rated current. High surge capability. U.L. recognized. C.S.A. certified [See More]
- Mounting: Panel
- Input Voltage (Control Signal) Type: DC
- Application Type: General
- Input Voltage (Control Signal) Range: 0.0
from Tempco Electric Heater Corporation
Tempco TPC Portable Temperature Control Consoles are quality built self-contained systems for monitoring and controlling process temperatures in a wide range of fixed or portable applications. These 1- to 4- zone units use our reliable next generation TEC-9100 1/16 DIN auto-tuning fuzzy logic PID... [See More]
- Mounting: Panel
- Input Voltage (Control Signal) Type: AC; DC
- Application Type: General
- Output Voltage Type: AC
from Finder S.p.A. con unico socio
Type 77.45 Solid State “Hockey Puck ” Relays for panel mounting, Zero-crossing switching, output: 40A/230 V AC. Designed for the following applications: – resistive loads. Features include: “Hockey Puck ” style. 24 to 240 V AC output. Zero-crossing version available. [See More]
- Mounting: Panel
- Input Voltage (Control Signal) Range: 230
- Input Voltage (Control Signal) Type: DC
- Input Current (Control Signal) Range: 40
from OMEGA Engineering, Inc.
Designed for superior thermal performance in harsh industrial environments, OMEGA's new SSRDIN/SSR3PH relay is the most advanced DIN rail solid state relay in its range. The epoxy-free design eliminates stress on internal components, preventing damage to the encapsulant during load failure. The... [See More]
- Mounting: DIN; Panel
- Application Type: General
- Solid State Relay Type: Optically
- Input Voltage (Control Signal) Type: AC; DC
from CARLO GAVAZZI Automation Components
CARLO GAVAZZI has launched the RM1D Series, a comprehensive family of DC switching solid state relays. The RM1D Series is designed for applications that demand critical response times, rapid cycling, and high reliability. They are ideal for use in transportation, off-grid and renewable energy... [See More]
- Mounting: Panel
- Input Voltage (Control Signal) Type: DC
- Application Type: Automotive
- Output Voltage Type: DC
from Excel Cell Electronic USA Corp.
Features. Optically Isolated. Input LED Indicator. High dv/dt and High Blocking Voltage. Low Input power Consumption. TTL and CMOS Compatible. Zero Voltage Turn-on, Zero Current Turn-off (minizes EMI/RFI). High Surge Rating Allows Lamp and Motor Load Switching. Output Snubber Circuit Protection. [See More]
- Mounting: Panel
- Application Type: General
- Solid State Relay Type: Optically
- Input Voltage (Control Signal) Type: DC
from Viconics Technologies Inc.
Viconics ’ R810 power switches have been designed for safe and reliable control of electric heat loads. This broad line of value priced products is used by most major North American duct heater manufacturers. The appropriate PWM or pulsed input signal can be provided by a DDC panel or Viconics... [See More]
- Mounting: Panel
- Application Type: General
- Solid State Relay Type: Transformer
- Input Voltage (Control Signal) Type: DC
from Shenzhen Shengyu Electronics Technology Limited
SSR RELAY SPST-NO 25A 24-280V [See More]
- Mounting: Bracket (Flange) Mount; Panel; Chassis Mount or Panel Mount
from OMEGA Engineering, Inc.
OMEGA's SSRINT Series Intelligent Solid State Relays are fully integrated with heat sink and DIN rail mounting plate in a space-saving design. They are touch-safe with LED input indication. All units come with built-in, replaceable semiconductor fuses. LED's indicate fuse failure. These intelligent... [See More]
- Mounting: DIN; Panel
- Application Type: General
- Solid State Relay Type: Optically
- Input Voltage (Control Signal) Type: AC; DC
from CARLO GAVAZZI Automation Components
Carlo Gavazzi offers a comprehensive range of solid state relays (SSR ’s) featuring direct copper bonding technology for increased life and reliability. SSR ’s are used extensively in the plastics, packaging, food processing, and HVAC industries - primarily for temperature control. They... [See More]
- Mounting: DIN; Panel
- Application Type: General
- Solid State Relay Type: Transformer
- Input Voltage (Control Signal) Type: AC; DC
from Excel Cell Electronic USA Corp.
Features. Optically Isolated. Input LED Indicator. High dv/dt and High Blocking Voltage. Low Input power Consumption. TTL and CMOS Compatible. Zero Voltage Turn-on, Zero Current Turn-off (minizes EMI/RFI). High Surge Rating Allows Lamp and Motor Load Switching. Output Snubber Circuit Protection. [See More]
- Mounting: Panel
- Application Type: General
- Solid State Relay Type: Optically
- Input Voltage (Control Signal) Type: DC
from Shenzhen Shengyu Electronics Technology Limited
SSR RELAY 3PST-NO 50A 24-510V [See More]
- Mounting: Bracket (Flange) Mount; Panel; Chassis Mount or Panel Mount
from OMEGA Engineering, Inc.
OMEGA's SSR3PH Series three-phase Solid State Relay is a fully integrated device with heat sink and DIN rail mounting plate in a space-saving design. Each unit is touch safe with LED input indication. This normally open, zero crossing device is capable of millions of cycles of operation. Dual SCR's... [See More]
- Mounting: DIN; Panel
- Input Voltage (Control Signal) Type: AC; DC
- Application Type: General
- Input Voltage (Control Signal) Range: 24 to 660
from Excel Cell Electronic USA Corp.
Features. Optically isolated. Output snubber circuit included. High surge rating allows. No arc. Noiseless. Low consumption inputs. Zero current switch-off. [See More]
- Mounting: Panel
- Application Type: General
- Solid State Relay Type: Optically
- Input Voltage (Control Signal) Type: DC
from Shenzhen Shengyu Electronics Technology Limited
SSR RELAY 3PST-NO 25A 24-510V [See More]
- Mounting: Bracket (Flange) Mount; Panel; Chassis Mount or Panel Mount
from OMEGA Engineering, Inc.
The versatile RELAY-URM Series relay module can switch up to eight 15 A loads using low-level input signals from PLCs, process controllers, and indicators. Its flexible inputs will accept a wide variety of control signals. Selectable input allows activation of output relays on a direct-acting or... [See More]
- Mounting: DIN; Panel; Wall Mount
- Input Voltage (Control Signal) Type: AC; DC
- Application Type: General
- Input Voltage (Control Signal) Range: 100 to 240
from Excel Cell Electronic USA Corp.
Features. Optically Isolated. Micro-computer/TTL /CMOS Compatible. Zero Voltage Turn-on, Zero Current Turn-off (Minizes Emi/Pfz) (AC Output). Output Snubber Circuit Protection. Compatible With 5, 15, 24 Volt Logic Systems. Industry Standard Package and Pin-out. [See More]
- Mounting: Panel
- Application Type: General
- Solid State Relay Type: Optically
- Input Voltage (Control Signal) Type: DC
from Shenzhen Shengyu Electronics Technology Limited
SSR RELAY 3PST-NO 50A 24-510V [See More]
- Mounting: Bracket (Flange) Mount; Panel; Chassis Mount or Panel Mount