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IACS 1 Channel 5 Amp Solid State Relay Board SSR ‘DC’ (Direct Drive)



Specification & Features • Switch rating of 5 Amperes at domestic voltage (and up to 220 volts DC) (Take care when working with potentially hazardous voltages)• Properly labelled and with proper connectors all round! NO SOLDERING REQUIRED! • Works directly at the logic level from a parallel port, AVR, Arduino, and many other microcontrollers and interfaces that use ‘TTL’ or CMOS logic levels, low level current will not damage or overload signal pins.  • May be driven using a microcontroller running at 3v directly. May go as high as 12v on the logic input. Recommended maximum is 8v.• Available in a range of different supply voltages. • CE Mark, RoHS and WEEE compliant, manufactured in England. • Dual-plated tracks conduct more current and make the device more reliable, the quality coating on the board makes it more resistant to residual moisture (not visible moisture) and corrosion. [ Photo colours may vary as different voltage variants use different components, thank you. ]


Product Features 
Board Input Voltage Options3V DC to 32V DC, we recommend 12V or 24V DC input.


This voltage range powers the board and does not interact with the switching ability e.g. a 12V DC board can switch between 5 volts up to 220V DC for this model. (DC to DC version) This version can not be used for switching AC loads.

5 Year Warranty on MAGER brand relay – extremely reliable, that’s why we use them.

Logic Voltage / Control Voltage1.5V – 12V DC (recommended +5V DC)
Switching FormSPST – Normally Open, closes when logic is high (active high)
Switching Power (Amps)Up to 5 amps (5A) at 220V DC. Protected by fast blow glass fuse which are readily available and easy to replace. Note: This version can not switch AC loadswe have a version that can!
Switch Response Time (ms)Usually less than 3ms – solid state means no moving parts so it should be near-instant, sometimes temperature fluctuation or magnetic resistance can cause it to be slower, this is the same with any SSR.
Protection FeaturesInput polarity protection, Flywheel, resistive logic, photo-triac, polarity LED and signal LED to indicate logic and power states. Changeable fast-blow FUSE
Compatible withArduino, ARM, AVR, MCU, PIC, Motherboard, optical controller, 32 channel controllers, Raspberry Pi, 8051, TTL, CMOS, Parallel ports and more
Suggested UsesAlarm, lighting, security system, Arduino shield, custom programming, door controller, sensor switch, fan control, CCTV, vaults, heating, motors, general home automation, and more. You can control basically anything that runs on mains voltage not exceeding 5 amps.

(L x W x H)

5cm x 5cm x 3cm
PCB TypeIndustrial Grade FR-4, does not flex or corrode, Green SM
TreatmentsHASL, treated with silicone
Place of ManufactureENGLAND
Quality ControlCE, EMC, IEC 6100-6-1, 6100-6-3, RoHS, WEEE (Compliance Number WEE/FK 2902 UZ), IMS115
Safety NoticesTake care when working with high voltages, isolate before touching the unit.
VATIncluded – An invoice is included as standard to all customers in UK / EU.
QuantityThis listing is for 1 unit unless otherwise stated, the pictures are a true representation of the quality but more than one item may be shown in the picture for multiple angles. This is illustrative only.
Datasheet Location (& Instructions)
Manufacturer’s Websitewww.iacselectronics.com
Part Number‘1CH-5A-SSR-DC’

This is the DC to DC variant, we have a DC controlled ‘AC’ variant that can switch AC up to 380V but this one can only switch DC.


Additional information

Weight300 g


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