Nelement Electric Solution

The "Unison SSR 25A DC to AC 901 ZDA 48 25 01 AL5" is a 25 Ampere, DC to AC Solid State Relay (SSR) from Unison Controls. It's designed with a hockey puck-style 45mm design, is a Triac SSR, and features opto-isolation. This model is suitable for panel mounting or DIN rail mounting and is a single-phase (1PH) SSR. It also includes an input LED for indication and has a built-in surge voltage protection of 2700Vrms. Here's a more detailed breakdown:

• Model: UNI 901 ZDA 48 25 01 AL5 
• Current Rating: 25 Amps 
• Input Voltage: 4-32V DC 
• Output Voltage: 24-480V AC (47-63 Hz) 
• Relay Type: Solid State Relay (SSR) 
• Zero Cross Over: Designed for zero-cross switching. 
• Insulation: 6kV for 1 minute (input to output), and body insulation, according to the manufacturer. 

The "Unison PMDD 200 15 00" is a DC Solid State Relay (SSR) manufactured by Unison Controls. It is a 15 Amp, MOSFET-based SSR designed for switching DC voltages. The model number indicates its key features: 200VDC output voltage rating and 15 Amp current rating. It is commonly used in industrial applications for controlling DC circuits, such as solenoid valves or DC motors. 

The 803 ZDA 58 50 01 is a Unison Solid State Relay (SSR), specifically a 50 Amp DC to AC zero-cross SSR. It features a slim 23.6 mm design and is designed for switching AC loads. Here's a more detailed breakdown: 

• Type: Solid State Relay (SSR), designed for switching AC loads.
• Current Rating: 50 Amps.
• Input Voltage: 4-32V DC.
• Output Voltage: 24-580V AC (47-63 Hz).
• Key Features:
  • Zero-cross switching: Ensures minimal inrush current and reduces electromagnetic interference.
  • Slim design: 23.6 mm width for space-saving applications.
  • Built-in surge voltage protection: 2700Vrms.
  • Short circuit protection: Protected by a "B" curve DP MCB.
• Other Specifications:
  • Input current: 4-16mA.
  • PIV: 1400.
  • I²T: 3000A²S for 9.6mS.
  • Body insulation: 4kV for 1 minute.
  • Input to Output insulation: 8kV for 1 minute.
  • Resistive load max: 15A, protected by 16A DP MCB.
  • Short circuit current rating: 10kA for <3mS.

Unison SSRs (Solid State Relays) are electronic switching devices that function as alternatives to traditional electromechanical relays

The 807 PMDD 100 08 01 is a DC to DC Solid State Relay manufactured by Unison. It's a PCB-mounted, miniature relay with an 8 Amp output, designed for DC control and switching applications. Here's a more detailed breakdown:

• Type: Solid State Relay (SSR). 
• Mounting: PCB mounted. 
• Body: Features a miniature, power MOSFET design. 
• Input: 3-32 VDC, with a green LED indicator for input status. 
• Output: 5-100 VDC, with a maximum of 8 Amps. 
• Switching: DC switching capability. 
• Insulation: Provides 3kV isolation between input and output for 1 minute. 
• Switching Speed: Fast switching with a turn-on time of 2.5 mS and a turn-off time of 40 μS. 
• Voltage Drop: A low on-state voltage drop of ≤0.3Vdc. 
• Additional Features: Opto-isolated, static switch, no leakage current, and includes heatsink mounting on an aluminum plate. 
• Manufacturer: Unison Controls Private Limited. 
• Typical Applications: Used in various industrial and automation systems requiring DC switching and control. 

The product "905 3PH ZUA 48 90 02" is a Unison 3-phase Solid State Relay (SSR) with a 90 Amp capacity and universal voltage input (12-270VAC/VDC). It is designed for industrial applications and features zero-cross switching. The relay has an output range of 24-480VAC and can handle frequencies from 47-63Hz, according to its specifications. Key features and specifications:

• Model: 905 3PH ZUA 48 90 02.
• Brand: Unison.
• Type: Solid State Relay (SSR).
• Phase: 3-Phase.
• Current Capacity: 90 Amps.
• Input Voltage: 12-270 VAC/VDC.
• Input Current: 5-10mA (for 12-270V input).
• Output Voltage: 24-480 VAC.
• Output Frequency: 47-63 Hz.
• Switching: Zero-cross switching.
• Application: Industrial.
• Inbuilt Surge Protection: 2700Vrms according to product descriptions.
• Isolation: 4kV (body), 6kV (input to output).
• Short Circuit Protection: Can be used with a "B" curve DP MCB for resistive loads or a 40A 3P MCB for short circuit protection, according to its specifications. 

The relay is designed for switching AC loads in various industrial applications and provides robust protection against surges and short circuits. 

This relay is designed for industrial applications and has a DC output switching capability, using Power MOSFETs. The "200" likely indicates a 200VDC maximum output voltage, and "25" likely indicates a 25 Ampere maximum load current.

• Model: UNI 101 PMDD 200 25 00 AL5
• Type: Solid State Relay (SSR)
• Application: Industrial
• Output Switching: DC (Power MOSFET)
• Input Voltage: Typically 4-32 VDC (may vary, check datasheet)
• Output Voltage: 5-200 VDC (or similar, check datasheet)
• Output Current: 25 Ampere (at 40°C)
• Mounting: DIN rail mountable (likely, based on model) 

The UNI 101 ZDA 48 25 00 AL5 is a 25 Amp Solid State Relay (SSR) manufactured by Unison Controls. It's a DC to AC relay, meaning it switches AC loads based on a DC input signal. This specific model features zero-cross switching, a green LED input indicator, and a compact 45mm panel mounting design. Here's a more detailed breakdown: 

• Model Number: 101 ZDA 48 25 00 AL5
• Manufacturer: Unison Controls
• Type: Solid State Relay (SSR)
• Load Voltage: 24-480V AC (47-63 Hz)
• Load Current: 25 Amps
• Input Voltage: 4-32V DC
• Input Current: 4-16mA
• Switching Type: Zero Cross Over (reduces electrical noise and stress on the relay)
• Mounting: 45mm panel mount
• Other features:
  • Input Green LED indication
  • Body and I/P to O/P insulation of 6kV for 1 minute
  • Surge voltage protection of 2700Vrms
  • Designed for a long life cycle, up to 10¹¹ cycles
  • Includes heat sink and DIN rail for mounting

This relay is typically used in industrial applications where reliable and noise-free switching of AC loads is required. 

The product "102 ZDA 60 40/40 01" is a Unison Solid State Relay (SSR) designed for DC to AC switching. It features a 40 Amp output and is a zero-cross over type, meaning it switches on or off at the zero-crossing point of the AC waveform, minimizing electrical noise and surge. This model is commonly used in industrial applications for switching AC loads. Here's a more detailed breakdown: 

• 102: Likely indicates the model series or type.
• ZDA: May signify a specific feature or design within the Unison SSR line.
• 60: Could be related to the voltage range of the input or output, or perhaps a specific design parameter.
• 40/40: This likely refers to the current rating of the output, with 40 Amps for each channel in a dual-channel configuration.
• 01: This likely indicates a specific version or revision of the product.
• Solid State Relay (SSR): An electronic switching device that uses semiconductor components to switch a load circuit, without any moving parts.
• Zero Cross Over: A feature that ensures the relay switches on or off when the voltage crosses zero, reducing electrical noise and stress on the relay and connected components.
• DC to AC: Indicates the type of switching function, where a DC control signal switches an AC load.
• 40 Amp: The maximum current the relay can switch at the output.