RSSAN-50A IDEC Corporation, RSSAN-50A Datasheet - Page 2

• Manufacturer Part Number: RSSAN-50A
• Description: Relay; SSR; Zero-Switching; SPST-NO; Cur-Rtg 50A; Ctrl-V 90-280AC; Vol-Rtg 48-660AC
• Manufacturer: IDEC Corporation

Specifications of RSSAN-50A

• Brand/series: RSS Series
• Contact Form: SPST-NO
• Current, Leakage, Off-state: 20 mA (Max.)
• Current, Rating: 50 A
• Current, Surge: 150 A for 1 Sec.
• Dielectric Strength: 4000 A (RMS) (Min.)
• Dimensions: 1.9 in. L x 0.95 in. W x 2.65 in. H
• Function: Zero-Switching
• Mounting Type: Panel
• Number Of Pins: 4
• Relay Type: Solid State
• Standards: cULus, CE
• Termination: Screw
• Transient Overvoltage: 1200 PIV
• Voltage, Control: 280 VAC
• Voltage, Rating: 660 VAC
• Lead Free Status / Rohs Status: RoHS Compliant part

Transformer Loads
Transformer loads sometimes result in severe inrush current when the trans-
former 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
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
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
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)
SSR Rating
SSR Rating
SSR Rating
Part Number
10A
25A
50A
10A
25A
50A
10A
25A
50A
10A
25A
50A
75A
90A
2A
4A
2A
4A
2A
4A
at 120V AC
at 120V AC
at 120V AC
Relays
2,100W
3,800W
150VA
200VA
500VA
250W
400W
250W
400W
900W
1KVA
2KVA
120V
1KW
2KW
3KW
1/2
1/2
3/4
3/4
3/4
at 240V AC
at 240V AC
at 240V AC
1,800W
4,200W
7,500W
300VA
400VA
1KVA
2KVA
4KVA
500W
800W
500W
800W
240V
2KW
4KW
6KW
1
3/4
3/4
1
5
5
/
2
480V
1
3/4
3/4
Recommended Loads
1
5
5
/
2
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
Internal Circuit Block Diagram
SSR Rating
4
3
4
3
10A
25A
50A
2A
4A
AC INPUT EQUIVALENT CIRCUIT
DC INPUT EQUIVALENT CIRCUIT
at 120V AC
1KW
2KW
3KW
2A
3A
TRIGGER
TRIGGER
CIRCUIT
CIRCUIT
at 240V AC
2KW
4KW
6KW
2A
3A
RSS Series
1
2
1
2
E