RSS Series Relays
RSS Series — Panel Mount Solid State Relays
Key features of the RSS series include:
• Input status LED Indicator
• Dual SCR output
• Direct bond copper substrate
• Internal transient protection – built-in snubber
• EMC compliant (level 3)
• Photo isolation
• 1200 volt blocking voltage
• 4000 volt optical isolation
• Zero voltage turn-on
• 100% tested at rated current
• High surge capability
• Optional finger-safe
terminal cover (RSS-CVR)
E
UL Recognized
File No. E194577
10, 25, 50, 75, 90A Current Ratings
48V AC to 660V AC Output Ratings
Series RSSDN RSSAN
Relays
Voltage Range
Input Current
Pick Up Voltage
Drop Out Voltage
Dielectric Strength
(Input-Output-Base)
Input Specifications
Capacitance
(Input to Output)
Rev. Voltage Protection
Current (continuous)
1-Cycle Surge Current
1-Second Surge Current
Minimum Holding Current
Voltage Drop
at Rated Current
Voltage Range
Contact
Over Voltage Rating
Frequency Range
Off-State Leakage
Output Specifications
at Rated Voltage
Turn-On Time
Turn-Off Time
Zero Voltage Switching
Static DV/DT
Commutating DV/T
Weight
4 to 32V DC 90 to 280V AC
current regulated (10mA)
4V DC 90V AC
1V DC 10V AC
4000 RMS (min) 4000 RMS (min)
8pF 8pF
Yes (–32VDC) N/A
10A 25A 50A 75A 90A
150A 300A 750A 1000A 1200A
30A 75A 150A 225A 300A
50mA 50mA 100mA 100mA 100mA
1.6V (maximum)
48 - 660V AC
1 Form A (SPST-NO)
1200 PIV
47 to 80Hz
20mA (maximum)
1/2 cycle @ 60Hz
1/2 cycle @ 60Hz
Yes
200V/µsec
Snubbed for 0.5 power factor at rated load
10g (approx.)
Part Numbers: RSS Series
Continuous Output Current DC Input AC Input
10A RSSDN-10A RSSAN-10A
25A RSSDN-25A RSSAN-25A
50A RSSDN-50A RSSAN-50A
75A RSSDN-75A RSSAN-75A
90A RSSDN-90A RSSAN-90A
The fingersafe cover is part no. RSS-CVR.
E-36 www.idec.com USA: (800) 262-IDEC or (408) 747-0550, Canada: (888) 317-IDEC
Relays RSS Series
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
2A 150VA 300VA
4A 200VA 400VA
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
2A 250W 500W
4A 400W 800W
10A 1KW 2KW
25A 2KW 4KW
50A 3KW 6KW
Solenoid Valves and Contactors
RSS relays use high-noise immunity circuitry with a snubber to handle the
electrical noise generated by inductive loads.
Recommended Loads
SSR Rating at 120V AC at 240V AC
2A 250W 500W
4A 400W 800W
10A 900W 1,800W
25A 2,100W 4,200W
50A 3,800W 7,500W
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
2A 2A 2A
4A 3A 3A
10A 1KW 2KW
25A 2KW 4KW
50A 3KW 6KW
Internal Circuit Block Diagram
4
TRIGGER
CIRCUIT
3 2
AC INPUT EQUIVALENT CIRCUIT
4
TRIGGER
CIRCUIT
3 2
DC INPUT EQUIVALENT CIRCUIT
1
SNUBBER
1
SNUBBER
E
Relays
RSS series relays provide a highly reliable means of switching AC loads when
applied properly. Read the following technical notes prior to installing IDEC’s
quality solid state relays.
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 11/
75A 3/4 5 5
90A 3/4 5 5
2
11/
2
www.idec.com USA: (800) 262-IDEC or (408) 747-0550, Canada: (888) 317-IDEC E-37