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SSM1A120BD
Harmony, Solid state modular relay, 20 A, DIN rail mount, zero voltage switching, input 4…32 V DC, output 24…280 V AC
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End of Commercialization
OCT 31, 2022
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End of Standard Services
NOV 29, 2022
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Main
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Range of product
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Harmony Solid State Relays
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Device short name
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SSM1
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Product or component type
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Solid state relay up to 20 A
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Number of phases
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1 phase
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Output switching mode
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Zero voltage switching
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Complementary
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Mounting support
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Symmetrical DIN rail
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[In] rated current
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20 A
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Output voltage
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24...280 V AC
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[Uc] control circuit voltage
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4...32 V DC
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Tightening torque
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0.6...0.7 N.m for input
1.36...1.7 N.m for output
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Connections - terminals
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Screw terminals: 1 x 0.2...1 x 5.3 mm², (AWG 24...AWG 10) for input
Screw terminals: 1 x 0.2...1 x 5.3 mm², (AWG 24...AWG 10) for output
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Maximum capacitance
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8 pF for input/output
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Insulation resistance
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1000 MOhm at 500 V DC
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Local signalling
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LED (green) for input status
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Switching voltage
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4 V DC turn-on
1 V DC turn-off
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Input current
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8…12 mA
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Solid state output type
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SCR output
Zero voltage switching
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Load current
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0.15…20 A
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Transient overvoltage
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600 V
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Surge current
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250 A for 16.6 ms
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Maximum voltage drop
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<1.6 V on-state
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Maximum I²t for fusing
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260 A².s for 8.3 ms
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Maximum leakage current
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10 mA off-state
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DV/dt
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500 V/µs off-state at maximum voltage
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Response time
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0.5 cycle (turn-on)
0.5 cycle (turn-off)
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Overvoltage category
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III
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Product weight
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0.28 kg
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Environment
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Dielectric strength
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4 kV AC for input/output
4 kV AC for input or output to case
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Pollution degree
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2
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Standards
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CSA C22.2 No 14
IEC 60950-1
UL 508
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Product certifications
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EAC
UL
CSA
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Marking
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CSA
UL
CE
EAC
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IP degree of protection
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IP20
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Ambient air temperature for operation
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-40…80 °C
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Ambient air temperature for storage
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-40…125 °C
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Packing Units
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Unit Type of Package 1
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PCE
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Number of Units in Package 1
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1
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Package 1 Height
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3.2 cm
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Package 1 Width
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11.0 cm
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Package 1 Length
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11.0 cm
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Package 1 Weight
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293.0 g
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Unit Type of Package 2
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S02
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Number of Units in Package 2
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24
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Package 2 Height
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15.0 cm
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Package 2 Width
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30.0 cm
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Package 2 Length
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40.0 cm
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Package 2 Weight
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7.3 kg
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Offer Sustainability
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SCIP Number
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134201bc-d293-4667-9cca-10a7f11729e0
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EU RoHS Directive
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Pro-active compliance (Product out of EU RoHS legal scope)
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Mercury free
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Yes
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RoHS exemption information
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 Yes
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China RoHS Regulation
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China RoHS declaration
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California proposition 65
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WARNING: This product can expose you to chemicals including: Lead and lead compounds, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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