RSTN 500 UL-CSA EP isolating transformer by Riedel
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The Riedel RSTN 500 UL-CSA is an EP isolating transformer designed for continuous operation under S1 operating mode at 100% ED. Engineered for a rated frequency of 50/60 Hz, it steps down a primary voltage of AC 240 V at 2.08 A to a secondary voltage of AC 115 V - 0 - 115 V at 2.17 A with a groupset of Ii0. Built for protection class SK I with an IPXXA degree of protection providing finger-safe touch, the unit utilizes normal air convection cooling (ON) and is rated for operation up to 1000m above sea level in ambient conditions of 40°C/B. Connections feature screw terminals for 4 mm² on both the primary and secondary sides, alongside a 6.3 mm Faston grounding connection. Manufactured and tested according to VDE 0570-2-4/EN61558-2-4 with UL/CSA module approval under file number E164203, this compact transformer measures approximately 120 x 120 x 121 mm with mounting dimensions of 90 x 102 mm for M5 hardware.
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Characteristics
| Manufacturer | Riedel |
|---|---|
| Part number | RSTN 500 UL-CSA |
| Inner Code | 4443899 |
Technical specification
| Product type | RSTN 500 UL-CSA EP isolating transformer |
|---|---|
| Primary voltage (PH-PH) | AC 240 V |
| Primary current | 2.08 A |
| Secondary voltage (PH-PH) | AC 115 V - 0 - 115 V |
| Secondary current | 2.17 A |
| Groupset | Ii0 |
| Rated frequency | 50/60 Hz |
| Protection class | SK I (protection class 1) |
| Operating mode | S1 (continuous operation)/100% ED |
| Ambient conditions | 40°C/B |
| Type of cooling | ON (normal air convection) |
| Installation height | 1000m above sea level |
| Degree of protection | IPXXA (fingers safe to touch) |
| Primary connection | terminals (screw connection) for 4 mm² |
| Secondary connection | terminals (screw connection) for 4 mm² |
| Grounding connection | Faston for 6.3 mm |
| Standards | VDE 0570-2-4/EN61558-2-4 |
| Approval | UL/CSA module approval (File number: E164203) |
| Dimensions (W x D x H) | approx. 120 x 120 x 121 mm |
| Mounting dimensions (W x D) | 90 x 102 mm, for M5 |