Product data sheet SSM1A120BD Characteristics Harmony, Solid state modular relay, 20 A, DIN rail mount, zero voltage switching, input 432 V DC, output 24280 V AC Main Range of Product Harmony Solid State Relays Product or Component Solid state relay up to 20 A Type Device short name SSM1 Number of phases 1 phase Output switching mode Zero voltage switching Complementary Mounting Support Symmetrical DIN rail Line Rated Current 20A Output voltage 24...280 V AC Uc control circuit voltage 4...32 V DC Tightening torque 0.6...0.7 N.m for input 1.36...1.7 N.m for output Connections - terminals Screw terminals 1 x 0.2...1 x 5.3 mm, AWG 24...AWG 10) input Screw terminals 1 x 0.2...1 x 5.3 mm, AWG 24...AWG 10) output Maximum capacitance 8pF for input/output Insulation resistance 1000 MOhm at 500V DC Local signalling For input status LED (green) Switching voltage 4V DC turn-on 1V DC turn-off Input current 812mA Solid state output type SCR output Zero voltage switching Load current 0.1520A Transient overvoltage 600 V Surge current 250A 16.6 ms Maximum voltage drop <1.6V on-state Maximum It for fusing 260A.s for 8.3 ms Maximum leakage current 10mA off-state DV/dt 500 V/s off-state at maximum voltage Response time 0.5 cycle (turn-on) 0.5 cycle (turn-off) Overvoltage category III Net Weight 0.62lb(US) (0.28kg) Jan 20, 2022 1 The information provided in this documentation contains general descriptions and/or technical characteristics of the performance of the products contained herein. This documentation is not intended as a substitute for and is not to be used for determining suitability or reliability of these products for specific user applications. It is the duty of any such user or integrator to perform the appropriate and complete risk analysis, evaluation and testing of the products with respect to the relevant specific application or use thereof. Neither Schneider Electric Industries SAS nor any of its affiliates or subsidiaries shall be responsible or liable for misuse of the information contained herein.Environment Dielectric strength 4KV AC for input/output 4kV AC for input or output to case Pollution degree 2 Standards CSA C22.2 No 14 IEC 60950-1 UL 508 Product Certifications EAC UL CSA Marking CSA UL CE EAC IP degree of protection IP20 Ambient air temperature for operation -40176F (-4080C) Ambient Air Temperature for Storage -40257F (-40125C) Ordering and shipping details Category 22375 - INTERFACE MODULE(ABA,R,S) Discount Schedule CP2 GTIN 3606485441573 Nbr. of units in pkg. 1 Package weight(Lbs) 10.51oz (298g) Returnability Yes Country of origin MX Packing Units Unit Type of Package 1 PCE Package 1 Height 1.26in (3.2cm) Package 1 width 4.33in (11cm) Package 1 Length 4.33in (11cm) Unit Type of Package 2 S02 Number of Units in Package 2 24 Package 2 Weight 16.25lb(US) (7.372kg) Package 2 Height 5.91in (15cm) Package 2 width 11.81in (30cm) Package 2 Length 15.75in (40cm) Offer Sustainability Sustainable offer status Green Premium product California proposition 65 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 REACh Regulation REACh Declaration EU RoHS Directive Pro-active compliance (Product out of EU RoHS legal scope) EU RoHS Declaration Mercury free Yes RoHS exemption information Yes China RoHS Regulation China RoHS Declaration Environmental Disclosure Product Environmental Profile Circularity Profile End Of Life Information 2