Solid State Relays & SCR Power Modules
BSSR3 Three Phase Solid State Relay, DC to AC Control, 10A–120A
The BSSR3 Three Phase Solid State Relay is a DC control AC output module with an integrated protective cover, designed for three-phase AC load switching. It accepts a 4–32VDC control signal and switches 24–480VAC loads, making it suitable for industrial heating, temperature control, motor control, lighting systems, automation equipment and power control cabinets. Current ratings from 10A to 120A are available.
- Three-phase solid state relay with protective terminal cover
- DC control AC output
- Control voltage: 4–32VDC, control current 10–68mA
- Load voltage: 24–480VAC
- Current options: 10A to 120A
- LED work indicator
- No contact spark, silent switching
- High reliability and long service life
- Suitable for resistive and heating loads
- Heat sink recommended for continuous operation
- Lead time
- 3–5 working days
- Warranty
- 12 months
- OEM
- Supported
- Shipping
- Worldwide export
Technical specifications
| Load Current | 10A, 25A, 40A, 50A, 60A, 75A, 80A, 100A, 120A |
|---|---|
| Load Voltage | 24–480VAC |
| Control Voltage | 4–32VDC |
| Control Current | 10–68mA |
| On-state Voltage Drop | ≤1.5V |
| Off-state Leakage Current | ≤2mA |
| On-off Time | ≤10ms |
| Dielectric Strength | 2500VAC |
| Insulation Resistance | 1000MΩ |
| Ambient Temperature | −30°C to +75°C |
| Mounting Method | Screw mounting |
| Work Indicator | LED |
| Weight | 275g |
BSSR3 Selection Guide
Dimensions & Wiring Diagram
Related guides
How to Wire TCN4S and TCN4H/L/M Temperature Controllers: Contactor and SSR Methods
Terminal-by-terminal wiring instructions for the TCN4S-14RV and TCN4H/L/M-14RV PID temperature controllers, covering AC contactor (relay output) wiring, BSSR-25DA solid-state relay wiring, K type and PT100/Cu50 sensor connections, SSR heat sink sizing and a commissioning checklist.
Read guide Technical Guides · 2025-04-15How to Wire REX-C100/C400/C700 Temperature Controllers with Relay and SSR Output
This blog provides a comprehensive guide on wiring REX series temperature controllers, including the C100, C400, and C700 models. It explains both relay and solid-state relay (SSR) output methods, sensor wiring (K-type and PT100), and alarm connections. Diagrams are provided for practical understanding and installation reference.
Read guide Technical Guides · 2025-04-11Solid State Relay (SSR) vs. Mechanical Relay: What’s the Difference and When to Use Each
This article compares SSR and mechanical relays by switching speed, lifespan, load compatibility, and usage scenarios—helping you decide which is best for your power control application.
Read guideRelated models
All Solid State Relays & SCR Power Modules
SSR-DA Single-Phase SSR — Standard Black Housing, 10A–100A
SSR-DA Series single-phase solid state relays from Beijing Strong Electric offer fast, silent zero-cross switching for AC resistive loads. Control input is 3–32VDC, load output 24–480VAC, with rated current from 10A to 100A. Typical uses are heating equipment, ovens, lighting circuits, packaging machines and temperature control systems.
View details
TSR Three Phase Solid State Relay — TSR-80DA, 10A–100A
TSR Three Phase Solid State Relay is a three-phase, DC-controlled AC solid state switching module for industrial heating and automation equipment. It accepts a 4–32VDC control signal, switches 24–380VAC loads, and is available from 10A to 100A (representative model TSR-80DA).
View details
SSR3 Three Phase Solid State Relay — 10A–200A
SSR3 Three Phase Solid State Relay is an industrial-grade three-phase, DC-controlled AC solid state switching module. It accepts a 3–32VDC control signal, switches 24–480VAC loads, and is available from 10A to 200A (representative model SSR3-25DA).
View details
BSSR-DA Solid State Relay
BSSR-DA Series Solid State Relay is a single-phase DC-to-AC solid state relay designed for industrial heating, motor control, temperature control systems, automation equipment, and switching applications. It features DC 3-32V control input, AC 24-480V load output, fast switching, stable performance, compact design, and good heat dissipation.
View detailsNeed help selecting the right model?
Send us the load, voltage, sensor type and output signal. We reply with the matching model, wiring notes and an OEM quotation.