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RSD-500B-12 MEAN WELL Power Supply | HTD Electronics
Manufacturer MEAN WELL

RSD-500B-12

Availability: Out of stock
420 W12 V35 A16.8V–33.6V in

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RSD-500B-12
Quantity Prices (USD)
Quantity
Unit Price (USD)
1+
$226.80 USD
10+
$215.46 USD
20+
$210.92 USD
50+
$206.39 USD
100+
$201.85 USD
200+
$197.32 USD
All prices are displayed in USD. *Import tariff is included in the listed price. You pay exactly what you see—no surprise fees at checkout. Discounts are applied automatically based on the total quantity added to your cart.
Quick Specs
Input Voltage
16.8V~33.6V
Output Voltage
12V
Rated Current
35A
Power Rating
420W
Waterproof
Non-waterproof
Dimensions & Weight
9.33 x 3.93 x 1.61 in3.19 lbs

Datasheet (PDF)

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Features

Compliance with BS EN/EN50155 and BS EN/EN45545-2 railway standard
1U low profile(25mm
2:1 wide input range
Fanless design, half encapsulated, cooling by free air convection
-40~+80℃ wide operating temperature
DC output adjustable
Protections: Short circuit / Overload / Over voltage / Input reverse polarity / Over temp.
4000VDC I / O isolation
Half encapsulated, cooling by free air convection
Operating altitude up to 5000 meters (Note.5)
LED indicator for power on
3 years warranty

General Specification 

Line regulation (max.) ± 0.5%
Load regulation (max.) ± 1.0%
Overload protection Range 105% ~ 135%
Overload protection Type Constant current limiting 105~135% rated output power with auto-recovery
Over-voltage protection 115% to 135% Shutdown O / P voltage, re-power on to recover
Withstand voltage I / PO / P: 4kVDC, I / P-FG: 2.5kVDC, O / P-FG: 2.5kVDC, 1 minute
Isolation resistance I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH
Working temperature -40 ~ + 80°C (refer to output derating curve)
Safety standards UL62368-1, IEC 62368-1, AS/NZS 62368-1, EAC TP TC 004 approved, Design refer to BS EN/EN62368-1
EMC standards EN55022 class B, EN50121-3-2, EN61000-4-2,3,4,5,6,8
Railway standard EN50155 / IEC60571
Dimension (LxWxH) (mm) 237 x 100 x 41mm
Packing 1.45Kg;10pcs/15.5Kg/0.8CUFT

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Environmental Documents
📄 E6) COC-REACH (2026/01/28) 📄 E9) CMRT (2025/04/25) 📄 E14) COC-ROHS 2 (2015/863/EU) (2024/10/04) 📄 REACH Certificate (PDF) (2020/12/03) 📄 ROHS Certificate (PDF) (2020/05/29) 📄 E12) COC-ROHS 2 (2011/65/EU) (2016/10/01)
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