SSR RANGE
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We are always looking at your need. Discover our solution! EL.CO. Approvals All our products are manufactured in compliance with the main international standards. This ensures safety, reliability and a high level of electromagnetic interference which gives our products the maximum duration that can be found on the market. For this need the solution is the SSR170H/SSR270H or SSR370H if you want a SSR with integrated heatsink or SSR19/SSR29 or SSR39 if you want an HOCKEY PUCK relay. UL, TUV and UKCA certifications are not present on all products 1 SSR with control load For this need the solution is the SSR170H with ELC40. If you want RS485, you can use ELC40-S instead of ELC40. A heat sink is used to lower the temperature of electronic components that release heat. It is important to know that the biggest difference between an SSR and a mechanical relay is that the SSR has a voltage drop which causes a loss of power and consequently of the heat that needs to be dissipated. The heatsink comes into play. But which heatsink do we choose? Read temperature with SSR For this need the solution is the SSR170H with ELCT40-S. With ELCT40-S you can manage temperature over a SSR with 22,5mm width. Let’s take an example. We consider some data as established to avoid damaging the product. Let’s assume a maximum of100 °C on the heatsink to avoid ruining the SSR and 40 °C of the environment. Solid state relay and temperature controller For this need the cheap solution is SSR with integrated heatsink or HOCKEY PUCK with ELK4C. If you want a more expensive solution that has more features you can change the ELK4C with ELKM4. Output Current Relay (CR): 25A (This information we must to have) Voltage drop (VD): 1.2V (Every SSR has a voltage drop) Maximum of 100°C on the heatsink (We assume this data to avoid damaging) Ambient temperature of 40°C (Standard temperature of environment) I have to dissipate 25A(CR)*1,2(VD) = 30W and we have a delta temperature of 60°C (100°C – 40°C) For this need the solution is the EMS24 series. If you choose EMS243-RC or EMS249-RC you also have load monitoring. You have RS485 modbus on the bus. Motor control We have to choose an heatsink with TC = 2°C/W or lower than 2°C/W ELCO srl Via Lago di Molveno, 20 - 36015 SCHIO (VI) Italy Tel. +39 0445 661722 - Fax +39 0445 661792 Ve n d i t e I t a l i a : s a l e s @ e l c o - i t a l y. c o m International sales: export@elco-italy.com AUTOMATION UNDER CONTROL We have to repeat the calculation but we don’t have to use CR as is, but we have to use the CR multiplied by the percentage of use. If we use the SSR at 50%, we have NewCR = CR * (50/100). The other calculation are the same a

HOCKEY PUCK Load Monitoring The SSR series SSR01/02/05, SSR20/21 and SSR91 are 100% compatible with electromechanical relays. They can be soldered on PCB or mounted on the standard sockets. For DIN rail mounting. Up to 8A. Extreme Force Each slim product has a «silver leg» which allow an extreme force with the PCB and interfaces. The solid state relays of the SSR19/29/39 has an innovative design with elevate performances and compactness. Aluminium Surface Each products is developed with the new PCB technology.This allows more dissipation, more compactness, more power. More than the others...