Relays & Sockets RSS Switches & Pilot Lights RSS Series Panel Mount Solid State Relays Key features: * Input status LED Indicator * Dual SCR output with epoxy free design * Direct bond copper substrate with direct output lead frame termination * Internal transient protection - built-in snubber * EMC compliant (level 3) Signaling Lights * 1200 Volt blocking voltage * 4000 Volt optical isolation * Zero crossing voltage turn-on * High surge capability * Optional fingersafe cover (RSS-CVR) Input AC Input 90-280V AC Part Number 10A RSSAN-10A 25A RSSAN-25A 50A RSSAN-50A 75A RSSAN-75A 90A RSSAN-90A 10A RSSDN-10A 25A 50A Series Voltage Range Input Current 3V DC 90V AC 1V DC 10V AC 4000 RMS (min) 4000 RMS (min) Capacitance (Input to Output) 8pF 8pF RSSDN-25A Rev. Voltage Protection Yes (-32V DC) RSSDN-50A Current (continuous) 10A 25A 50A 75A 90A 75A RSSDN-75A 1-Cycle Surge Current 150A 300A 750A 1000A 1200A 90A RSSDN-90A 1-Second Surge Current at 25C Voltage Range Output Over Voltage Rating Frequency Range Off-State Leakage at Rated Voltage 225A 300A 100mA 100mA 1.35V (maximum) 48 - 660V AC Dual SCR (N.O.) 1200 PIV 47 to 440Hz 25mA (maximum) Turn-Off Time 1/2 cycle @ 60Hz for zero-cross versions, 30ms for other versions Commutating DV/DT Weight 800-262-IDEC (4332) * USA & Canada Yes 200V/sec Snubbed for 0.5 power factor at rated load -20 to 80C Circuit Breakers Ambient operating temperature range 1705242125 150A 100mA 1/2 cycle @ 60Hz for zero-cross versions, 20ms for other versions Static DV/DT 3 (+ / ) 85A 50mA Turn-On Time Zero Voltage Switching 4 (- / ) 50A 50mA Terminal Blocks Output Specifications V N/A Contactors Minimum Holding Current Voltage Drop at Rated Current 2 ( ) current regulated (10mA) Pick Up Voltage Drop Out Voltage AC 1 ( ) RSSAN 90 to 280V AC Dielectric Strength (Input-Output-Base) Wiring Diagram Load (10) RSSDN 3 to 32V DC Timers DC Input 3-32V DC Specifications Continuous Output Current Input Specifications Part Number Selection Relays & Sockets UL Recognized File No. E194577 82g 929 Relays & Sockets Signaling Lights Switches & Pilot Lights RSS Recommended Loads Transformer Loads Transformer loads sometimes result in severe inrush current when the transformer saturates during the first cycle. Use a relay rated for this surge, which has a 1/2 cycle surge current greater than the maximum applied line voltage; the transformer's primary resistance (approximately 10x rated current). Recommended Loads SSR Rating at 120V AC at 240V AC 10A 500VA 1KVA 25A 1KVA 2KVA 50A 2KVA 4KVA Heater Loads Relays & Sockets When using solid state relays for driving heaters where the load is switched on and off rapidly and continuously, severe thermal stress will result. In such cases, use an SSR relay at no more than 75% of the rating. Recommended Loads SSR Rating at 120V AC at 240V AC 10A 1KW 2KW 25A 2KW 4KW 50A 3KW 6KW Solenoid Valves and Contactors Recommended Loads SSR Rating at 120V AC at 240V AC 10A 900W 1,800W 25A 2,100W 4,200W 50A 3,800W 7,500W RSS series relays provide a highly reliable means of switching AC loads when applied properly. Read the technical notes on the following page prior to installing solid state relays. Circuit Breakers Terminal Blocks Contactors Timers RSS relays use high-noise immunity circuitry with a built-in snubber to handle the electrical noise generated by inductive loads. 930 www.IDEC.com 1705242125 Relays & Sockets RSS Switches & Pilot Lights UL Motor Load Ratings (HP Ratings) Part Number 120V 240V 480V 10A 1/2 3/4 3/4 25A 1/2 3/4 3/4 50A 3/4 1 1/2 1 1/2 75A 3/4 5 5 90A 3/4 5 5 Zero voltage switching is ideal for driving incandescent lamps, since the cold filament will not be subjected to a large inrush current. Using a zero-switched SSR will reduce inrush current and prolong lamp life. Recommended Loads at 120V AC at 240V AC 10A 1KW 2KW 25A 2KW 4KW 50A 3KW 6KW Wire Size (Solid/ Stranded) Wire Pull-Out Strength (lbs) (N) 24 AWG (0.2 mm) / 0.2 (min) 10 (44.5) 2 x 12 AWG (3.3 mm) / 3.3 (max) 90 (400) 20 AWG (0.5 mm) / 0.518 (min) 3 (133) 2 x 10 AWG (5.4 mm) / 5.4 110 (490) 2 x 8 AWG (8.4 mm) / 8.4 (max) 90 (400) Relays & Sockets SSR Rating Recommended Wire Sizes Terminals Input Timers Output Signaling Lights Lamp Loads Internal Circuit Block Diagram 4 +DC Trigger Circuit AC OUTPUT INPUT 1 Contactors DC Control -DC 2 3 AC Current Limiter Terminal Blocks AC Control Current Limiter AC 3 1 AC/DC Converter Trigger Circuit AC OUTPUT INPUT AC 4 2 AC Circuit Breakers 1705242125 800-262-IDEC (4332) * USA & Canada 931 Relays & Sockets Switches & Pilot Lights RSS Technical Notes Environment Do not install SSRs near sources of excessive heat. Make sure applications are dry and well ventilated. If SSRs must be installed in an environment subject to high temperatures or poor ventilation, or if SSRs are mounted collectively, reduce the load current so that it does not approach the ambient temperature-load current recommendation. (See the Temperature Derating Curves on the following page.) When SSRs are used with inductive loads, suppress the inrush current to half of the peak surge current. Relays & Sockets Signaling Lights Heat Sinks Heat sinks are recommended for all solid state relays depending on ambient temperature and mounting position. The recommended heat sink dimensions and material are shown in the table: Output Rating Dimensions Material 10A 12" x 12" x 1/8" Aluminum (black anodized) 25A 12" x 12" x 1/8" (DC/AC) Aluminum (black anodized) 25A 15" x 15" x 1/8" (AC/AC) Aluminum (black anodized) 50A 15" x 15" x 1/8" Aluminum (black anodized) 75A 17" x 17" x 1/8" Aluminum (black anodized) 90A 17" x 17" x 1/8" Aluminum (black anodized) Using a thermal compound between the base of the SSR and the heat sink for heat dissipation is recommended. Wiring Locate SSRs as far from motor leads as possible to prevent malfunction from induced current. Timers Use shielded wires for input leads when they are exposed to a source of induced current. Mounting Provide sufficient ventilation. Use #6 - 32 screws, flat washers, and lock washers to secure mounting on heat sinks. Vertical mounting is recommended to allow air to flow unimpeded. Horizontal or inverted mounting is possible, but the SSR must be derated according to the derating curves on the following page. Contactors Additional Information Do not exceed the load voltage and current specifications. A small-capacity load may not turn off due to the leakage current present after the SSR has turned off. If this is the case, use a resistor in parallel with the load to shunt the leakage current. Observe the polarity of input terminals. Failure to do so may cause damage to the SSR. When the SSR output is subjected to a higher than rated voltage, a varistor or other element should be connected to the output terminals to absorb the over-voltage. Over 4V 0V Lowest Voltage Circuit Breakers Terminal Blocks When the input signal contains a ripple voltage, the lowest ripple amplitude should exceed the minimum pick-up voltage of 4V. 932 www.IDEC.com 1705242125 Relays & Sockets RSS 25 AMP SCR OUTPUT 10 AMP SCR OUTPUT 3C/W 1C/W 5C/W Load Current (Amps) 8 6 4 2 20 15 10 5 0 20 25 30 35 40 45 50 55 60 65 70 75 80 20 25 30 35 Ambient Temperature (C) 1C/W 50 55 60 65 70 75 80 75 AMP SCR OUTPUT 1.5C/W 2C/W 0.5C/W 50 0.7C/W 1.5C/W 1C/W Load Current (Amps) 75 40 30 20 10 0 20 45 Relays & Sockets 0.7C/W 40 Ambient Temperature (C) 50 AMP SCR OUTPUT 0.5C/W Load Current (Amps) 3C/W 2C/W Signaling Lights Load Current (Amps) 1.5C/W 25 10 0 Switches & Pilot Lights Temperature Derating Curves: RSS Series - Dependent upon heat-sink heat dissipation Thermal Derate Information 25 30 35 40 45 50 55 60 65 70 75 80 45 30 15 0 20 25 30 35 40 45 50 55 60 65 70 75 80 Timers Ambient Temperature (C) 60 Ambient Temperature (C) 90 AMP SCR OUTPUT 0.4C/W 0.5C/W 1C/W 0.7C/W Contactors Load Current (Amps) 100 90 80 70 60 50 40 30 20 10 0 20 25 30 35 40 45 50 55 60 65 70 75 80 Ambient Temperature (C) Terminal Blocks Circuit Breakers 1705242125 800-262-IDEC (4332) * USA & Canada 933 Relays & Sockets Switches & Pilot Lights RSS Dimensions (mm) Relay Dimensions 1.1 [27.9] 0.89 [22.6] Mounting Hole/Slot 0.19 [4.9] DIA. 0.49 [12.4] Signaling Lights 0.89 [22.6] Mounting Hole/Slot 0.19 [4.9] DIA. 0.49 [12.4] 1.1 [27.9] 1.88 [47.6] 1.7 [43.2] 1.88 [47.6] 2.25 [57.3] 1.7 [43.2] 2.25 [57.3] 1.0 [25.4] Relays & Sockets 1.75 [44.5] 1.0 [25.4] 1.75 [44.5] 1.1 [27.9] Finger-safe Cover Dimensions 0.49 [12.4] 1.1 [27.9] 0.49 [12.4] Timers 1.88 [47.6] 1.88 [47.6] 1.7 [43.2] Mounting Hole/Slot 0.19 [4.9] DIA. Mounting Hole/Slot 0.19 [4.9] DIA. 2.25 [57.3] 2.32 [58.8] 1.7 [43.2] 2.25 [57.3] 2.32 [58.8] 1.0 [25.4] 1.75 [44.5] 1.0 [25.4] 1.22 [30.9] 1.22 [30.9] Tolerances: 0.02 in / 0.5 mm All dimensions are in: inches [millimeters] Tolerances: 0.02 in / 0.5 mm All dimensions are in: inches [millimeters] Circuit Breakers Terminal Blocks Contactors 1.75 [44.5] 934 www.IDEC.com 1705242125