RSSDN-50A IDEC Corporation, RSSDN-50A Datasheet - Page 3

• Manufacturer Part Number: RSSDN-50A
• Description: Relay; SSR; Zero-Switching; SPST-NO; Cur-Rtg 50A; Ctrl-V 4-32DC; Vol-Rtg 48-660AC
• Manufacturer: IDEC Corporation

Specifications of RSSDN-50A

• Brand/series: RSS Series
• Contact Form: SPST-NO
• Current, Leakage, Off-state: 20 mA
• Current, Rating: 50 A
• Current, Surge: 150 A
• Dielectric Strength: 4000 V (RMS)
• Dimensions: 2.25 in. L x 1.75 in. W x 0.95 in. H
• Function: Zero-Switching
• Mounting Type: Panel
• Number Of Pins: 4
• Relay Type: Solid State
• Standards: cULus, CE
• Termination: Screw
• Voltage, Control: 32 VDC
• Voltage, Rating: 660 VAC
• Lead Free Status / Rohs Status: RoHS Compliant part

E
RSS Series
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 10, 25, 50, 75, and 90 amp rated solid state relays depending on ambient temperature and mounting position. The recommended
heat sink dimensions and material are shown in the table:
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 der-
ating 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-volt-
age.
When the input signal contains a ripple voltage, the lowest ripple amplitude should exceed the minimum pick-up voltage of 4V.
Over 4V
Output Rating
0V
10A
25A
25A
50A
75A
90A
Dimensions
12" x 12" x 1/8"
12" x 12" x 1/8" (DC/AC)
15" x 15" x 1/8" (AC/AC)
15" x 15" x 1/8"
17" x 17" x 1/8"
17" x 17" x 1/8"
Lowest Voltage
Material
Aluminum (black anodized)
Aluminum (black anodized)
Aluminum (black anodized)
Aluminum (black anodized)
Aluminum (black anodized)
Aluminum (black anodized)
Technical Notes
Relays