The SSS4X gives a 40A hockey-puck-style solid state relay a proper heat sink to dissipate the heat it generates under load, mounting to DIN rail or chassis with a slimline profile that doesn't eat excessive panel space. Without adequate heat sinking, an SSR at this current rating can overheat and fail prematurely — this is sized specifically for the 40A class.
EMAS heat sinks are a slimline design with versatile mounting to DIN rail or chassis. Universal fitting - works with the majority of hockey puck style Solid State Relays.
Solid build quality with 3 year warranty as standard.
Options are available with fans for assisted cooling.
Technical Details
Frequently Asked Questions
Which SSR does this fit?
It's a universal-fit heat sink for hockey-puck style solid state relays, sized for the 40A class — including EMAS's own SSRP1DA040.
Do I need this if I'm using a 40A SSR?
Yes — hockey-puck SSRs rely on an external heat sink to dissipate heat under load; running one without adequate heat sinking risks overheating and premature failure, especially near the top of its current rating.
Can I mount this on DIN rail or does it need a flat chassis?
Either — it's designed for versatile mounting to DIN rail or a flat chassis panel.
Is a fan-assisted version available?
Yes — fan-assisted options are available for applications running closer to continuous full load or in warmer ambient conditions.
Industry Applications
- Heater & process control — heat dissipation for SSR-switched heating elements
- Motor & load switching — thermal management for PLC-driven SSR circuits
- Panel builders & OEMs — standard heat sink for 40A-class hockey-puck SSRs