Square D Harmony Solid State R...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$127.96
Square D Harmony Solid State Relay, DIN Rail Mount, 35A

Square D Harmony Solid State Relay, DIN Rail Mount, 35A

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Model: SSD1A335BDC3

In Stock (leaves warehouse same day if ordered before 3pm ET)

$127.96
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Square D Harmony Solid State Relay, DIN Rail Mount, 35A

The Square D Harmony solid state relay is a DIN rail mounted power switching device built for industrial and commercial control panels. This relay mounts on 35mm symmetrical DIN rail conforming to IEC 60715 and secures with a locking mounting latch, delivering a 35A load current rating (0.15...35A) with an input control voltage of 4...32V DC and an output switching range of 48...600V AC. With zero voltage switching, pluggable spring input terminals, and compliance with UL 508 and CSA C22.2 No 14-13, this relay is engineered for reliable, code-compliant load switching in demanding automation environments.

Key Features

  • Mounting: 35 mm symmetrical DIN rail conforming to IEC 60715, with a secure mounting latch for vibration-resistant installation.
  • Load Rating: 35A power-rated relay with a load current range of 0.15...35A for demanding switching applications.
  • Control Voltage: Input control voltage of 4...32V DC (Uc) for compatibility with common low-voltage control circuits.
  • Output Voltage: Output switching voltage range of 48...600V AC for a broad span of load circuits.
  • Zero Voltage Switching: Solid state output type with zero voltage switching to minimize inrush disturbance and electrical noise.
  • Connections: Plug-in spring terminals with clamping connection capacity of 0.13...3.30 mm² (AWG 26...AWG 12) for input.
  • Dielectric Strength: Rated 4 kV AC for input or output to case and 4 kV AC for input/output circuit isolation.
  • Local Signalling: Green LED indicator for control voltage status at a glance.

Certifications & Compliance

  • UL 508
  • CSA C22.2 No 14-13
  • IEC 62314
  • IEC 60950-1
  • IEC 60947-4-3
  • IEC 61373: class B, category 1
  • Flame Retardance V-0 conforming to UL 94

Technical Specifications

  • Sustainable Packaging: Yes
  • Mercury Free: Yes
  • Packaging Without Single Use Plastic: Yes
  • Tier Id: 2
  • ROHS Eur In Scope: No
  • Recycled Metal Content At Cr Level: 0 %
  • China ROHS Label: 5
  • With Recycled Cardboard: Yes
  • WEEE Product Category: 5
  • China ROHS In Scope: Yes
  • Return Indicator: N
  • Take Back: No
  • Tier: 2
  • Returnability: No
  • Overvoltage Category: III
  • Ambient Air Temperature For Storage: -40-100 °C
  • WD Status: 1 - GSC certified
  • Country of Origin: United States
  • Legacy WEEE Scope: Out
  • China ROHS Regulation: X
  • Packaging Made With Recycled Cardboard: Yes
  • Number Of Channels: 1

Typical Applications

  • Industrial Control Panels and Automation Systems
  • Motor Load and DOL Contactor Switching
  • Panel Building and OEM Control Equipment
  • Commercial and Industrial Electrical Installations
  • Uninterrupted-Duty Switching Applications

Why Square D?

Square D's Harmony solid state relay range delivers rugged, DIN rail mounted power switching with zero voltage switching technology, pluggable spring terminals, and dielectric strength rated to 4 kV AC. Backed by UL 508 and CSA C22.2 No 14-13 compliance, this relay is built for reliable, code-compliant performance in professional industrial and commercial control applications.

Manufacturer Resources

Product Specs

Product Type:
Solid State Relay
Series:
Harmony Solid State Relays
Amperage Rating:
35A
Voltage Rating:
4...32V DC
Configuration:
DIN Rail Mount
Connection Type:
Plug-In Spring Terminals
Standards:
UL 508
Country Of Origin:
United States
Department:
Electrical
Product Group:
Motor Control & Automation
Product Subgroup:
Contactors & Relays

Square D SSD1A335BDC3 – Frequently Asked Questions

1) Will a 24V DC PLC output drive the Square D Harmony SSD1A335BDC3 solid state relay?
Yes. The SSD1A335BDC3 takes a control input of 4 to 32V DC, so a standard 24V DC PLC or controller output drives it directly with no interposing relay. A green LED on the front shows when control voltage is present, which makes troubleshooting a dead output quick.
2) Does the Square D Harmony SSR mount on standard 35mm DIN rail in a control panel?
It mounts on 35 mm symmetrical DIN rail to IEC 60715 and clips in with a locking mounting latch, so it holds position in panels subject to vibration. No separate mounting plate or screw hardware is needed.
3) Is this solid state relay UL listed for use in a US industrial control panel?
It complies with UL 508 and CSA C22.2 No 14-13, the industrial control equipment standards for the US and Canada, and it is also built to IEC 60947-4-3. Overvoltage category is III and the housing is V-0 flame retardant to UL 94. Country of origin is the United States.
4) Can this Harmony solid state relay switch a motor load?
Yes, within its ratings. Square D lists motor load and DOL contactor switching among its applications, alongside panel building and OEM control equipment. Keep the motor current inside the 0.15 to 35A load range and the supply inside 48 to 600V AC. For motor circuits you still need separate overload and short circuit protection, since the SSR only does the switching.
5) What wire size do the input terminals on this solid state relay accept?
The input uses plug-in spring terminals with a clamping capacity of 0.13 to 3.30 mm2, which is AWG 26 through AWG 12. Spring terminals mean no screw torquing and no retorque schedule, and the plug-in block lets you pull the wiring off as a unit when you swap the relay.
6) Should I use a solid state relay or a mechanical contactor for this switching job?
Pick the solid state route when the load cycles frequently or runs continuous duty. The Harmony SSR switches at zero voltage crossing, so inrush disturbance and electrical noise are reduced and there are no contacts to erode. A mechanical contactor is still the better answer when you need visible isolation, motor overload integration, or multi-pole switching. This unit is single channel, so three phase switching takes three devices or a three pole SSR.
7) How much isolation is there between the control side and the 600V load side of this relay?
Dielectric strength is rated 4 kV AC input or output to case, and 4 kV AC between the input and output circuits. That separation is what lets a 24V DC logic circuit sit next to a 480V load without a barrier relay in between.
8) What storage temperature can the SSD1A335BDC3 relay handle before installation?
Ambient air temperature for storage is rated -40 to 100 C, so holding stock in an unheated warehouse or a job trailer is not a problem. It is also mercury free and rated to IEC 61373 class B category 1 for shock and vibration.
How fast can I get the Square D SSD1A335BDC3 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Square D SSD1A335BDC3 come with a warranty?
Absolutely. The Square D SSD1A335BDC3 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Square D SSD1A335BDC3?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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