LN Series AC Output Low Noise Panel Mount LND4450C
Relays
Highlights: 50 Amps at 528 VAC, Control Voltage 4.8 - 32, Protective clear cover
The Sensata | Crydom LN Series are panel mounted Solid State Relays with reliable back-to-back SCR switching, coupled with a patented trigger circuit design which allows the SSR to switch resistive loads with minimal electromagnetic noise generated, ideal for use in commercial, residential and medical
applications.
The LND4450C is a low noise SSR with output ratings of 50 Amps at 528 VAC, and it comes with Zero Voltage Turn-On (for resistive loads) output and protective clear cover.
Applications: Commercial ovens; Professional cooking equipment; Household appliances; Medical equipment
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Part #LND4450C
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Contact UsFeatures
- Rating up to 75A @48-528 VAC per channel
- Zero Voltage Turn-On Switching
- Conformance with IEC60947-4-3 Environment B for low voltage domestic, commercial and light industrial locations/installations
- Patented Low Noise trigger circuit
- IP20 touch-safe housing is available
- Built-in Input/Output over-voltage protection
- LED Input Status Indicator
- 3500 VAC Optical isolation
- EMC Compliant to level III
Specifications
| Output Voltage | 25 A | 50 A | 75 A |
| 24-280 VAC | LND2425 | LND2450 | LND2475 |
| 48-528 VAC | LND4425 | LND4450 | LND4475 |
| Description | LND44XX |
| Oprerating Voltage (47-63Hz) [VRMS] | 48-528 |
| Transient Overvoltage [Vpk] | 800 |
| Maximum Off-State Leakage Current @ Rated Voltage [mARMS) | 1 |
| Zero Crossing Level Maximum [Vpk] | 20 |
| Minimum Off-State dV/dt @ Maximum Rated Voltage [V/μsec] | 500 |
| Description | LNDXX50 |
| Load Current, LC A IEC62314 @ Ue=480VAC, 40°C [ARMS] | 50 |
| Minimum Load Current [mARMS] | 100 |
| Maximum 1 Cycle Surge Current (50/60Hz) [Apk] | 597/625 |
| 1 Second surge current (Apk. Ta=25°C) 50/60 Hz | 150 |
| Maximum On-State Voltage Drop @ Rated Current [Vrms] | 1.25 |
| Maximum 1/2 Cycle I² t for Fusing (50/60Hz) [A² sec] | 1770/1621 |
| Thermal Resistance Junction to Case (Rjc) [°C/W] | 0,45 |
| Maximum Power Dissipation @Rated Current [W] | 62.5 |
| Recommended Heat Sink for Rated Current @40°C [°C/W] | 1 |
| Minimum Power Factor (at Maximum load) | 0.7 |
| Description | LND44XX |
| Control Voltage Range [VDC] | 4.8 - 32 |
| Maximum Reverse Voltage [VDC] | 32 |
| Minimum Turn-On Voltage [VDC] | 4.8 |
| Minimum Turn-Off Voltage [VDC] | 1.1 |
| Minimum Input Current (for on-state) [mA] | 15 |
| Maximum Input Current [mA] | 27 |
| Nominal Input Impedance [Ω] | Current Regulated |
| Maximum Turn-On Time | 1/2 Cycle |
| Maximum Turn-Off Time | 1/2 Cycle |
| Description | Parameters |
| Dielectric Strength, Input to Output (50/60Hz) [VRMS] | 3500 |
| Dielectric Strength, Input/Output to Case (50/60Hz) [VRMS] | 4000 |
| Minimum Insulation Resistance (@ 500 VDC) [Ω] | 109 |
| Maximum Capacitance, Input/Output [pF] | 12 |
| Ambient Operating Temperature Range [°C] | -40 to 80 |
| Ambient Storage Temperature Range [°C] | -40 to 100 |
| Weight (typical) [oz/g] | 2.6/74.9 |
| Housing Material | Ul94 V-0 |
| Baseplate Material | Aluminum |
| Input Terminal Screw Torque Range [lb-in/Nm] | 13-15/1.5-1.7 |
| Load Terminal Screw Torque Range [lb-in/Nm] | 18-20/2-2.2 |
| SSR Mounting Screw Torque Range [lb-in/Nm] | 18-20/2-2.3 |
| Humidity per IEC60068-2-78 | 93% non-condensing |
| LED Input Status Indicator | Green |
| Overvoltage Category | III |
| Impulse Withstand Voltage according to IEC 60664-1 | 6kV |
| Series | Control Voltage | Operating Voltage | Related Load Current | Termination | Protective Cover | Thermal Pad |
| LN = Low Noise Solid State Relay | D = 4.8-32VDC | 24 = 24-280VAC 44 = 48-528VAC |
25 = 25A 50 = 50A 75 = 75A |
Blank = Screw & Clamps K = Installed standoffs with screws for PC Board mounting (IP00 only) |
Blank = Not included (IP00) C = Included (IP20) |
Blank = Not included H = Included |
