World-Wide Leader in Decoupling


Configure Your Product:

This product requires configuration. To select the different options for this product continue to the Configuration Tool. Need help selecting the right options for your application? Contact Us.
Configuration Tool
Configure Your Product

Product Description

The SSD uses proven, solid-state construction combined with innovative production and packaging techniques, to offer exceptional performance while lowering the cost of applying protection products to the industry. With a range of ratings for AC fault current and lightning, and the ability to pass steady-state AC current, the device outperforms other technologies such as metal oxide varistors, gapped arresters, and polarization cells. Now proven over many years, the SSD is the most commonly used Dairyland decoupler in the world providing effective DC decoupling and AC continuity/grounding to end-users around the world.

UL Canada & United States
AC Fault Current (Amperes-RMS) 50/60Hz
1.2kA at 30 cycles
2.0kA at 30 cycles
3.7kA at 30 cycles
5.0kA at 30 cycles

Review the Technical Literature for full fault current tables.

AC Steady-State Current
45A (standard)
(amperes - rms) 50/60Hz
Environmental Rating
IP68 - submersible (to 2m depth)
Threshold Voltage
-2/+2V (standard)
-3/+1V (optional)
Lightning Impulse Current
100kA crest (8 x 20 ┬Ás waveform)
Hazardous (Classified) Areas
ANSI/ISA: Class I, Division 2, Groups A, B, C, D
ATEX: Zone 2, Group IIC
IECEx: Zone 2, Group IIC
EAC: Zone Class 2

The SSD has been tested by Nationally Recognized Testing Laboratories (NRTLs) for compliance to independent standards in its operation, ratings, and construction. This includes compliance to standards for:


UL (United States) and C-UL (Canada) listing for:

Providing an “effective ground-fault current path” as defined in NFPA 70 (US National Electrical Code – NEC), Article 250.2, and required in 250.4(A)(5)

Likewise, per Canadian Standards Association CSA C22.1-12 Canadian Electrical Code, Article 10-500.

Providing over-voltage protection in accordance with the applicable requirements of ANSI C62.11


Providing DC isolation of objectionable DC ground currents in grounding conductors as defined in NFPA 70, Article 250.6(E), and in CSA C22.1-12 Article 10-806


The SSD has been certified for use in Class I, Division 2, Groups A, B, C, D hazardous locations by UL, C-UL according to:

  • NFPA 70 (U.S. National Electrical Code) sections 500-505
  • ANSI/ISA 12.12.01-2011
  • CSA C22.2 No.213-M1987 (R2008)

The SSD has been certified to the ATEX Directive 2014/34/EU for use in Zone 2, Group IIC hazardous locations by UL/DEMKO, according to:

  • EN IEC 60079-0:2018 and EN60079-15:2010

The SSD has been certified IECEx for use in Zone 2, Group IIC hazardous locations by UL, according to:

  • IEC60079-0: 7th Ed and IEC60079-15: 4th Ed

The SSD has been certified to the EAC requirements within TP TC 012/2011 for Zone Class 2 hazardous locations by NANIO-CCVE, according to:

  • GOST R IEC 60079-15-2010, GOST R IEC 60079-0-2011

Find The Product Type For Your Project.
Configure The SSD

Client Testimonials

Our Reliable Customer Service Team
Is Ready to Help

Have product questions or need a quote? Our trained staff values extreme service and is ready to help.

Contact Us