This 25A single phase Solid State Relay is part of Novus's economical range of SSRs — reliable, branded devices that perform well in industrial environments, well suited to switching cartridge heaters, resistive elements, and general AC loads. Controlled by 3-32VDC, it switches AC loads from 40-480VAC at up to 25A.
Solid state relays are used for switching resistive and inductive loads, outperforming conventional mechanical relays with a life cycle measured in millions of operations, high switching speed with no mechanical or electrical noise, no dangerous sparks or wear, and low power needed for switching — a perfect choice when high control accuracy is fundamental.
✅ 1 Year Manufacturer Warranty — backed by our UK-based technical support
Novus SSR-4825 Datasheet Download
Novus SSR-4825 Manual Download
Technical Details
AC Load: 40-480 VAC @ 25A
DC Control: 3-32 Vdc
Switching: Zero crossing, optically isolated, dv/dt protection
Indication: Switching status indicator LED
Construction: Secure screw terminals, terminal shield, mounting pad, CE marked
Does not generate EMI/RFI
Frequently Asked Questions
Which Novus PID controllers is this compatible with?
Any Novus PID controller with a pulse output (PR/PRRR-suffixed models across the N1020, N1030, N1040, N1050 and N20K48 ranges) can drive this SSR directly from its control-side DC output.
Will this work with a non-Novus controller?
Yes — this is a universal DC-controlled SSR, triggered by any 3-32VDC signal within its input range. It's not limited to Novus controllers and works equally well with other brand temperature controllers, PLCs, and process controllers.
Does this need a heatsink?
For continuous high-current loads a heatsink is recommended to keep the SSR within its operating temperature range — see our SSR + Heatsink bundles for a ready-matched option.
Industry Applications
- Cartridge Heaters & Resistive Elements — clean, silent switching without mechanical wear.
- Oven & Kiln Control — pairs directly with Novus PID temperature controllers.
- High-Cycle Industrial Processes — millions of switching operations without contact degradation.