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Carlo Gavazzi
Carlo Gavazzi RM1A/RM1B Solid State Relay
Quote on request
No online payment · add lines to RFQ BOM
1-phase SSR; ZC or instant-on; to 100 A / 600 VAC. RFQ + selection help.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Approvals
UR, cUR, CSA, CCC, EAC
Switching Modes
RM1A zero-crossing (ZC); RM1B instant-on (IO)
Operational Voltage
Up to 600 VACrms (type-dependent: 230/400/480/600)
Operational Current
25 / 50 / 75 / 100 AACrms with suitable heatsink
Blocking Voltage
Up to 1400 Vp (650/800/1200/1400 by voltage class)
Control Input
3–32 VDC or 20–280 VAC / 22–48 VDC
Fits single-phase SSR switching where you need Carlo Gavazzi RM1A zero-crossing or RM1B instant-on relays up to 100 AACrms with suitable heatsink and up to 600 VACrms.
Key advantages
- Modes — RM1A zero-crossing (ZC); RM1B instant-on (IO)
- Voltage / current — Up to 600 VACrms; 25/50/75/100 AACrms with heatsink
- Control — 3–32 VDC or 20–280 VAC / 22–48 VDC
- Isolation — Opto isolation >4000 VACrms; built-in varistor; DCB technology
- Approvals — UR, cUR, CSA, CCC, EAC
Typical applications
- Resistive heater SSR panels.
- Inductive/capacitive load switching with correct SSR mode.
- OEM machines needing IP20 clip-on cover SSRs with LED indication.
Selection guide
- Mode — RM1A ZC vs RM1B instant-on
- Current / voltage class — 25–100 A; 230/400/480/600 VAC
- Control input — DC vs AC control
- Heatsink — Required for rated AACrms
Common mistakes
- Omitting heatsink and expecting nameplate current in free air.
- Using zero-crossing on loads that need instant-on.
- Ignoring surge/varistor and load type limits.
When to RFQ / what to tell us
- Load type, VAC, current, control signal.
- RM1A vs RM1B; heatsink needs.
- Quantity and ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 18055 |
| Brand | Carlo Gavazzi |
| Model | RM1A/B Series Solid State Relay |
| Product type | Solid State Relay |
| Switching modes | RM1A zero-crossing (ZC); RM1B instant-on (IO) |
| Operational voltage | Up to 600 VACrms (type-dependent: 230/400/480/600) |
| Operational current | 25 / 50 / 75 / 100 AACrms with suitable heatsink |
| Blocking voltage | Up to 1400 Vp (650/800/1200/1400 by voltage class) |
| Control input | 3–32 VDC or 20–280 VAC / 22–48 VDC |
| Opto isolation | > 4000 VACrms |
| Frequency | 45–65 Hz |
| Features | LED indication; built-in varistor; DCB technology; IP20 clip-on cover; self-lifting terminals |
| Approvals | UR, cUR, CSA, CCC, EAC |
| Load types | Resistive, inductive and capacitive loads |
Documents
FAQ
Q: RM1A vs RM1B? A: RM1A is zero-crossing; RM1B is instant-on.
Q: What currents? A: 25 / 50 / 75 / 100 AACrms with suitable heatsink.
Q: What should I send for a quote? A: Load/VAC/current/control, mode, heatsink, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Approvals | UR, cUR, CSA, CCC, EAC |
| Switching Modes | RM1A zero-crossing (ZC); RM1B instant-on (IO) |
| Operational Voltage | Up to 600 VACrms (type-dependent: 230/400/480/600) |
| Operational Current | 25 / 50 / 75 / 100 AACrms with suitable heatsink |
| Blocking Voltage | Up to 1400 Vp (650/800/1200/1400 by voltage class) |
| Control Input | 3–32 VDC or 20–280 VAC / 22–48 VDC |
| Opto Isolation | > 4000 VACrms |
| Frequency | 45–65 Hz |
| Features | LED indication; built-in varistor; DCB technology; IP20 clip-on cover; self-lifting terminals |
| Load Types | Resistive, inductive and capacitive loads |