Relay Boards Quote - Fast Local Supply & Bulk Pricing for South African Projects

Reliable relay boards when your project needs dependable switching

Find relay boards in stock that match your control requirements without long lead times. Communica keeps a broad selection of single-relay modules, multi-channel boards and opto-isolated relay cards suitable for hobbyists, tertiary labs, technicians and procurement teams. Request a quote to compare prices, lead times and available accessories for immediate projects or production runs.

Why request a relay boards quote from Communica?

• Local stock and branch pickup reduce downtime - check availability and collect from Samrand or CBD branches.
• Flexible quoting for VAT invoices, account orders and education/tertiary purchases.
• Technical compatibility guidance to match coil voltages, contact ratings and board interfaces (Arduino, Raspberry Pi, PLCs).

Specification callouts to include in your quote

When requesting a quote, include the following so we can return an accurate, comparable offer:

• Number of channels (1, 2, 4, 8, 16)
• Coil voltage (5V, 12V, 24V)
• Contact rating (e.g., 10A @ 250VAC, 30VDC switching)
• Isolation type (optocoupler, transistor driver, direct coil)
• Mounting style (PCB header, DIN-rail, screw terminal)

Quick spec comparison

Use this short table to compare common relay board types when preparing your quote request:

Need to check what we currently stock? View our full collections to see relay modules, connectors and enclosures on the store: Shop by Category. To learn more about Communica, our history and service model visit our About Us page.

How we tailor quotes for South African makers, labs and procurement

We price quotes to reflect stock availability, bulk quantities and accessory bundles so you get a full-solution offer - relays plus sockets, flyback diodes, terminal blocks and mounting hardware. For education and tertiary orders we can itemise VAT invoices and support procurement paperwork.

Compatibility checks and accessory bundles

To avoid returns and rework, provide the load type (AC or DC), switching current and the controlling interface when requesting a quote. Typical accessory bundles we include in quotes:

• Relay sockets and screw terminals for quick replacement
• Flyback diodes and snubbers for inductive loads
• Indicator LEDs and pull-up resistors for status feedback

Basic wiring example (single-channel relay board)

Below is a simple ASCII wiring diagram showing a microcontroller controlling a relay to switch an AC load. Ensure isolation and safety for mains wiring.

Microcontroller GPIO ----[IN] Relay Board [COM] ---- Load ---- Mains Live
                                 [NO] --------------------(when energized)
                                 [NC] --------------------(when de-energized)
Ground -------------------------- GND

Objections handled - availability, lead times and technical support

Concerned about stock or delivery? We maintain a national footprint with head office/warehouse in Samrand and branches in Pretoria CBD and Cape Town. See branch hours and collection options here: Branches & Trading Hours. If a part is on backorder we’ll provide lead-time estimates and suggest locally stocked alternatives from brands we carry. Browse brands and check likely substitutions on our shop by brand page: Shop by Brand.

Final summary and next steps

When you ask for a relay boards quote, include quantity, coil voltage, contact rating, mounting preference and any required accessories. We will return a clear quote with VAT invoice options, stock locations and estimated lead times so you can plan procurement or classroom builds with confidence.

Prefer to browse before you request? View all relay, connector and power options in our full product index: All Products. Ready to get a tailored quote or compare specs for production or study projects? Choose Shop Now, Check Stock in Samrand, Compare Specs or Request a Quote to get started with Communica's local support and fast fulfilment.