SSAC Product Catalog - Complete Line Available from Gross Automation

1 Multifunction Time Delay Relays

Versatile timers with multiple selectable functions and time delay ranges. Perfect when you need flexibility - select functions and timing via unit face settings.

Download Legacy Multifunction Timer Catalog (PDF)

2 Relay-Output Time Delay Relays

Electromechanical timers with isolated relay contacts. Available in multiple configurations with DPDT or SPDT outputs, zero voltage drop across contacts.

Key Specifications: Voltage ranges 12-230V | Relay output DPDT or SPDT, 10A isolated | ±0.5% repeat accuracy | 8-pin, 11-pin plug-in or compact packages

3 Solid State Time Delay Relays

No moving parts means up to 100x longer lifespan than relay-output timers. Fully encapsulated for harsh environments.

4 HVAC Time Delay Relays

Purpose-built timers for heating, ventilation, and air conditioning applications. Anti-short cycle protection, compressor protection, fan delays.

• Compressor short-cycle protection
• Fan on/off delays
• Heat pump defrost timing
• Blower motor delays
• Anti-recycle timers
• Oil burner controls

Download HVAC Timer Catalog PDF | View HVAC Application Guide at Littelfuse

Compressor protection, fan delays, defrost timers, blower controls

Process automation, machine timing, conveyor control, sequencing

Pump alternation, level control, chemical dosing, aeration timing

Cooking timers, dispensing, packaging, sanitation cycles

Pump control, valve timing, safety systems, explosion-proof environments

Tower lighting, FAA obstruction lights, beacon controls, warning flashers

Lighting control, elevator timing, HVAC automation, parking systems

Irrigation timing, grain handling, livestock systems, greenhouse control

What is SSAC?

SSAC (Solid State Advanced Controls) was founded in 1968 as a pioneering manufacturer of solid state timing controls and relays. The company built its reputation on quality, reliability, and innovation in electronic timing devices. Today, SSAC is a brand of Littelfuse, Inc., having been acquired in 2014. Prior to Littelfuse, SSAC was part of ABB (until 2010) and briefly owned by SymCom. Throughout these ownership changes, SSAC product specifications have remained unchanged, ensuring backward compatibility for replacement applications.

Why Choose SSAC Timers?

SSAC timers are known for their 10-year warranty - far exceeding the industry standard of 1-2 years. This reflects SSAC's confidence in their American-designed quality. Key advantages include: precise timing accuracy (±0.1% on TRU series), wide voltage input ranges for universal applications, robust construction for industrial environments, and comprehensive product selection covering every timing function from simple delay-on-make to complex recycling patterns.

SSAC vs Other Timer Brands

When comparing SSAC timers to Macromatic, Dayton, Square D, Siemens, or Allen-Bradley timing relays, SSAC consistently offers superior value through their extended warranty, proven reliability, and comprehensive product line. Need to replace a Macromatic timer with SSAC? Our engineers can provide cross-reference assistance. Looking for an SSAC equivalent to Dayton? We stock compatible replacements. Gross Automation provides free cross-referencing for all major timer brands.

SSAC Timer Applications

SSAC timers are used in thousands of applications: HVAC compressor short-cycle protection, fan delay relays, heat pump defrost timers, motor start delays, pump alternation, chemical dosing systems, conveyor timing, packaging machine sequencing, tower obstruction lighting, beacon flashers, parking lot lighting control, vending machine dispensing, wash cycle timing, and countless industrial automation applications.

Original SSAC
Founded as Solid State Advanced Controls. Pioneered electronic timing technology.

ABB SSAC
Acquired by ABB, expanding global distribution and product development.

SymCom SSAC
Brief ownership by SymCom motor protection specialists.

Littelfuse SSAC
Current owner. Continued innovation with maintained product specifications.