NewTrend · isolated interface relay
Product overview
NewTrend RIS8-01 provides an isolated interface between an AC supply, external control-switch inputs and relay outputs. It uses AC 85-265V at 45-65Hz and provides one SPDT output controlled through C-Z. The original catalogue specifies 4kVAC isolation between each of the three circuit groups. The DIN-rail body is 18mm wide, with 10A AC-1 contacts and LED indication.
Technical selection summary
| Model | RIS8-01 |
|---|---|
| Function | Isolated interface / control relay |
| Control supply | AC 85-265V |
| Supply frequency | 45-65Hz |
| Supply terminals | A1-A2 |
| Power input | 2.5VA |
| Control-switch inputs | C-Z |
| Control circuit in diagram | Internal 24V circuit; follow original switch wiring |
| Isolation: supply to switch input | 4kVAC |
| Isolation: supply to relay output | 4kVAC |
| Isolation: switch input to relay output | 4kVAC |
| Output contacts | 1 SPDT |
| Output terminals | 11-12-14 |
| Contact rating | 10A, AC-1 |
| Switching voltage | 250VAC / 24VDC |
| Minimum DC breaking power | 500mW |
| Supply indication | Green Un LED |
| Output indication | Red R LED |
| Mechanical life | 10,000,000 operations |
| Electrical life (AC-1) | 100,000 operations |
| Operating temperature | -20 to +55°C |
| Storage temperature | -35 to +75°C |
| Mounting | DIN rail to EN/IEC 60715 |
| Protection | IP20 |
| Operating position | Any |
| Overvoltage category / pollution degree | III / 2 |
| Maximum conductor size | 1 x 2.5mm² or 2 x 1.5mm² |
| Terminal tightening torque | 0.8Nm |
| Body dimensions | 90 x 18 x 64mm |
| Overall height in drawing | 95mm including rail-clip projection |
| Weight | 62g |
| Referenced standards | GB/T 14048.5; IEC 60947-5-1 |
Operation
- Connect the AC supply to A1-A2. The green Un LED indicates supply.
- Use the external control switch between C and Z, as shown in the original connection diagram. The output changeover contact uses 11-12-14; the red R LED indicates output state.
- Keep the supply, switch-input and output wiring consistent with the three-way isolation diagram.
Typical applications
- HVAC and equipment-control interface circuits
- PLC and building-control system interfaces
- Control panels connecting dissimilar input and output circuits
View or download RIS8-01/02 isolated interface relay catalogue (PDF)
Product reference images and drawings
Original model comparison, isolation ratings and technical parameters
Original input/output circuit diagrams, LED panel and complete dimensions
Connect the AC supply to A1-A2. Follow the exact-model C/Z input and changeover-contact diagrams; the supply is AC 85-265V, not a DC-supply version. The original connection diagram shows the internal 24V control circuit. RIS8-01 uses C-Z and output terminals 11-12-14. Installation and wiring must be performed by qualified electricians.
