Switches & Pilot Lights Signaling Lights Relays & Sockets Timers Contactors Terminal Blocks Circuit Breakers RSS Relays & Sockets 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) • 1200 Volt blocking voltage • 4000 Volt optical isolation • Zero crossing voltage turn-on • High surge capability • Optional fingersafe cover (RSS-CVR) UL Recognized File No. E194577 Part Number Selection Specifications Continuous Series RSSDN RSSAN Input Part Number Output Current Voltage Range 3 to 32V DC 90 to 280V AC 10A RSSAN-10A Input Current current regulated (10mA) 25A RSSAN-25A AC Input Pick Up Voltage 3V DC 90V AC 90-280V AC 50A RSSAN-50A Drop Out Voltage 1V DC 10V AC 75A RSSAN-75A Dielectric Strength 4000 RMS (min) 4000 RMS (min) 90A RSSAN-90A (Input-Output-Base) 10A RSSDN-10A Capacitance (Input to Output) 8pF 8pF 25A RSSDN-25A Rev. Voltage Protection Yes (–32V DC) N/A DC Input 3-32V DC 50A 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 25°C 50A 85A 150A 225A 300A Minimum Holding Current 50mA 50mA 100mA 100mA 100mA Wiring Diagram Voltage Drop at Rated Current 1.35V (maximum) AC Voltage Range 48 - 660V AC V Output Dual SCR (N.O.) Load (10) Over Voltage Rating 1200 PIV Frequency Range 47 to 440Hz 1 ( ) 2 ( ) Off-State Leakage at Rated Voltage 25mA (maximum) 1/2 cycle @ 60Hz for zero-cross versions, 20ms for other Turn-On Time versions 1/2 cycle @ 60Hz for zero-cross versions, 30ms for other Turn-Off Time versions Zero Voltage Switching Yes Static DV/DT 200V/µsec Commutating DV/DT Snubbed for 0.5 power factor at rated load 4 (– / ) 3 (+ / ) Ambient operating temperature -20 to 80°C range Weight 82g 1705242125 800-262-IDEC (4332) • USA & Canada 929 Output Specifications Input Specifications RSS Relays & Sockets 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 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 RSS relays use high-noise immunity circuitry with a built-in snubber to handle the electrical noise generated by inductive loads. 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. 1705242125 www.IDEC.com 930 Circuit Breakers Terminal Blocks Contactors Timers Relays & Sockets Signaling Lights Switches & Pilot Lights Switches & Pilot Lights Signaling Lights Relays & Sockets Timers Contactors Terminal Blocks Circuit Breakers RSS Relays & Sockets 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 Lamp Loads 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 SSR Rating at 120V AC at 240V AC 10A 1KW 2KW 25A 2KW 4KW 50A 3KW 6KW Recommended Wire Sizes Wire Size (Solid/ Wire Pull-Out Strength Terminals Stranded) (lbs) (N) Input 24 AWG (0.2 mm²) / 0.2 10 (44.5) (min) 2 x 12 AWG (3.3 mm²) / 90 (400) 3.3 (max) Output 20 AWG (0.5 mm²) / 0.518 3 (133) (min) 2 x 10 AWG (5.4 mm²) / 5.4 110 (490) 2 x 8 AWG (8.4 mm²) / 8.4 90 (400) (max) Internal Circuit Block Diagram DC Control -DC 4 1 AC Trigger Circuit 2 +DC 3 AC Current Limiter AC Control Current Limiter AC 4 1 AC AC/DC Trigger Converter Circuit 2 AC AC 3 1705242125 800-262-IDEC (4332) • USA & Canada 931 INPUT INPUT OUTPUT OUTPUT RSS Relays & Sockets 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. Heat Sinks Heat sinks are recommended for all solid state relays depending on ambient temperature and mounting position. The recommended heat sink dimensions and mate- rial 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. 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. 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. When the input signal contains a ripple voltage, the lowest ripple amplitude should exceed the minimum pick-up voltage of 4V. Over 4V Lowest Voltage 0V 1705242125 www.IDEC.com 932 Circuit Breakers Terminal Blocks Contactors Timers Relays & Sockets Signaling Lights Switches & Pilot Lights Switches & Pilot Lights Signaling Lights Relays & Sockets Timers Contactors Terminal Blocks Circuit Breakers RSS Relays & Sockets Temperature Derating Curves: RSS Series - Dependent upon heat-sink heat dissipation Thermal Derate Information 10 AMP SCR OUTPUT 25 AMP SCR OUTPUT 3°C/W 5°C/W 1°C/W 1.5°C/W 2°C/W 3°C/W 25 10 8 20 15 6 10 4 2 5 0 0 20 25 30 35 40 45 50 55 60 65 70 75 80 20 25 30 35 40 45 50 55 60 65 70 75 80 Ambient Temperature (ºC) Ambient Temperature (ºC) 50 AMP SCR OUTPUT 75 AMP SCR OUTPUT 0.5°C/W 0.7°C/W 1°C/W 1.5°C/W 2°C/W 0.5°C/W 0.7°C/W 1°C/W 1.5°C/W 50 75 40 60 30 45 20 30 10 15 0 0 20 25 30 35 40 45 50 55 60 65 70 75 80 20 25 30 35 40 45 50 55 60 65 70 75 80 Ambient Temperature (ºC) Ambient Temperature (ºC) 90 AMP SCR OUTPUT 0.4°C/W 0.5°C/W 0.7°C/W 1°C/W 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 (ºC) 1705242125 800-262-IDEC (4332) • USA & Canada 933 Load Current (Amps) Load Current (Amps) Load Current (Amps) Load Current (Amps) Load Current (Amps) RSS Relays & Sockets Dimensions (mm) Relay Dimensions 1.1 0.89 [27.9] [22.6] Mounting Hole/Slot 0.49 0.19 [4.9] [12.4] 1.1 DIA. 0.89 [27.9] [22.6] Mounting Hole/Slot 0.49 0.19 [4.9] [12.4] DIA. 1.88 1.7 2.25 [47.6] [43.2] [57.3] 1.88 1.7 2.25 [47.6] [43.2] [57.3] 1.0 1.0 [25.4] [25.4] 1.75 1.75 [44.5] [44.5] 1.0 1.0 [25.4] [25.4] 1.75 1.75 [44.5] [44.5] 1.1 Mounting [27.9] Finger-safe Cover Dimensions Hole/Slot 0.19 [4.9] DIA. 0.49 [12.4] 1.1 Mounting [27.9] Hole/Slot 0.19 [4.9] DIA. 0.49 [12.4] 2.25 1.88 1.7 2.32 [57.3] [47.6] [43.2] [58.8] 2.25 1.88 1.7 2.32 [57.3] [47.6] [43.2] [58.8] 1.0 1.0 1.22 [25.4] [25.4] [30.9] 1.75 1.75 [44.5] [44.5] 1.0 1.0 1.22 [25.4] [25.4] [30.9] 1.75 1.75 [44.5] [44.5] 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] 1705242125 www.IDEC.com 934 Circuit Breakers Terminal Blocks Contactors Timers Relays & Sockets Signaling Lights Switches & Pilot Lights