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HS2B6NN051D024 Lovato SOLID STATE RELAY 2P 50A
Lovato HS2B6NN051D024 is a two-phase 50 A hockey-puck solid state relay with 10–30 V DC control, 24–600 V AC load switching, SCR zero-crossing outputs, 1200 A surge capability and screw terminals for industrial resistive-load control.
£103.13
Why Choose the Lovato HS2B6NN051D024 Solid State Relay?
The Lovato HS2B6NN051D024 is a high-performance two-phase solid state relay (SSR) designed for reliable electronic switching of resistive AC loads in industrial control applications. As part of the Lovato HS2B solid state relay series, its robust hockey-puck construction combines two-phase semiconductor switching with secure screw terminals for installation in machinery and electrical control panels.
The HS2B6NN051D024 uses SCR semiconductor outputs with zero-crossing switching, helping minimise electrical disturbances when compatible AC loads are switched. It accepts a 10–30 V DC control signal and operates with loads across a wide 24–600 V AC rated voltage range, making it suitable for interfacing with PLCs, temperature controllers and other low-voltage electronic control systems.
Rated at 50 A AC-51 at both 40 °C and 55 °C for resistive loads when correctly cooled, the HS2B6NN051D024 provides substantial two-phase switching capability. Its 1200 V blocking voltage, exceptional 1200 A surge-current capability and 4000 V input-to-output isolation make it a dependable solution for industrial heating, process control and other frequently switched resistive loads.
Key Advantages
- Robust two-phase hockey-puck solid state relay for industrial AC load switching.
- 50 A AC-51 rating at both 40 °C and 55 °C with appropriate heatsinking.
- 10–30 V DC control input for convenient connection to PLCs and electronic controllers.
- Wide 24–600 V AC operating range for versatile industrial applications.
- Zero-crossing switching helps reduce electrical disturbances during load switching.
- High 1200 A non-repetitive surge-current capability at 10 ms.
- No moving mechanical contacts for silent operation and excellent switching endurance.
Key Features
- Lovato HS2B solid state relay series.
- Two-phase, two-pole configuration.
- 50 A AC-51 rated operating current at 40 °C.
- 50 A AC-51 rated operating current at 55 °C.
- 10–30 V DC control voltage.
- 24–600 V AC rated operating voltage.
- 1200 V blocking voltage.
- SCR silicon-controlled rectifier outputs.
- Zero-crossing switching mode.
- 7200 A²s specific let-through energy I²t.
- 4000 V input-to-output isolation.
- Screw control terminals and M5 screw load terminals.
High-Capacity Two-Phase Electronic Switching
Two-phase solid state relays provide electronic switching across two phases without the moving contacts found in conventional electromechanical switching devices. This enables silent operation, rapid switching and excellent endurance, making SSR technology particularly valuable for industrial heating and process applications involving frequent ON/OFF cycles.
The Lovato HS2B6NN051D024 combines two-phase switching with zero-crossing operation, a broad 24–600 V AC operating range and a low-voltage DC control input. Its 50 A AC-51 rating and high 7200 A²s I²t withstand capability make it suitable for demanding resistive loads, while correct heatsink selection and thermal management are essential for achieving the specified continuous current performance.
Typical Applications
- Industrial electric heating systems.
- Industrial ovens, furnaces and drying equipment.
- Temperature-control and process-heating systems.
- Two-phase resistive load switching.
- Packaging and production machinery.
- Plastic processing and moulding equipment.
- PLC-controlled industrial automation systems.
- Electrical and industrial control panels.
Technical Specifications
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| Device Type | Solid State Relay | |
|---|---|---|
| Coil / Supply Voltage | 12 V DC, 24 V DC | |
| Manufacturer | Lovato Electric | |
| Series | HS2B Solid State Relays | |
| Model | HS2B6NN051D024 | |
| Product type | Hockey-puck two-phase solid state relay | |
| Number of poles | 2 | |
| Control voltage | 10–30 V DC | |
| Operating voltage pick-up | 10 V | |
| Operating voltage drop-out | 2 V | |
| Input current | 6–24 mA | |
| Input reverse voltage | 32 V | |
| Switching-on time | Half cycle maximum | |
| Switching-off time | Half cycle maximum | |
| Static output type | SCR | |
| Switching mode | Zero crossing | |
| Rated operating voltage | 24–600 V AC | |
| Blocking voltage | 1200 V | |
| Operational frequency | 45–65 Hz | |
| Rated operating current AC-51 at 40 °C | 50 A | |
| Rated operating current AC-51 at 55 °C | 50 A | |
| Minimum operational current | 0.05 A | |
| Non-repetitive surge peak current at 10 ms | 1200 A | |
| Off-state leakage current | 1 mA | |
| On-state output voltage drop | 1.2 V | |
| Critical rate of rise of off-state voltage | 500 V/µs | |
| Input-to-output isolation | 4000 V | |
| Input/output-to-metal-base isolation | 4000 V | |
| Specific let-through energy I²t | 7200 A²s | |
| Junction-to-case thermal resistance | 0.3 K/W | |
| Required heatsink at rated AC-51 current | ≤0.3 K/W | |
| Control terminals | Screw | |
| Control terminal tool | 3.5 mm blade | |
| Control terminal conductor size | 0.75–2.5 mm² | |
| Control terminal conductor range | AWG 28–12 | |
| Control terminal tightening torque | 0.5 Nm | |
| Load terminals | M5 screw | |
| Load terminal tool | PZ2 | |
| Load terminal tightening torque | 2–3 Nm | |
| Operating temperature | -55 to +90 °C | |
| Storage temperature | -55 to +125 °C | |
| Product weight | approx. 100 g | |
| Quantity per package | 1 | |
| Package dimensions | 69 × 56 × 48 mm | |
| Package volume | 185.472 cm³ | |
| EAN | 8013975321713 | |
| HS code | 85365003 | |
| Certifications | UL, CSA and VDE |
Frequently Asked Questions
What is the Lovato HS2B6NN051D024 used for?
The HS2B6NN051D024 is a two-phase solid state relay designed for electronic switching of resistive AC loads, making it particularly suitable for industrial heating, process control, machinery and automation applications.
What is the current rating of the HS2B6NN051D024?
The relay is rated at 50 A AC-51 at 40 °C and 50 A AC-51 at 55 °C for resistive loads when installed with the appropriate thermal management.
What control voltage does the HS2B6NN051D024 require?
The HS2B6NN051D024 accepts a 10–30 V DC control signal, making it suitable for use with compatible PLC outputs, temperature controllers and other low-voltage electronic control devices.
What load voltage can the HS2B6NN051D024 switch?
The Lovato HS2B6NN051D024 has a rated operating voltage range of 24–600 V AC, an operational frequency range of 45–65 Hz and a blocking voltage of 1200 V.
Does the HS2B6NN051D024 require a heatsink?
Yes. Appropriate thermal management is required according to the actual load current, ambient temperature and duty cycle. Lovato specifies a heatsink thermal resistance of ≤0.3 K/W for operation at the rated 50 A AC-51 current at 40 °C and 55 °C.
Reliable Two-Phase Solid State Switching from Lovato Electric
Lovato HS solid state relays provide panel builders, machine manufacturers and automation engineers with robust semiconductor switching solutions for silent, reliable and frequent control of demanding industrial electrical loads.
