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SITOP RED1200 redundancy module, decouples two 10A supplies into a 24/48V, 20A DC output.
The Siemens 6EP4346-7RB00-0AX0 SITOP RED1200 is a redundancy module that decouples two SITOP power supplies, each up to 10 A, into a single 24/48 V DC output rated 20 A. It reaches 97.5% efficiency with only 0.1 W no-load loss, letting either input source fail without interrupting the downstream 24 V bus.
A 20 A rated output paired with two inputs each capped at 10 A (per the module's two-supply decoupling spec) means this RED1200 unit is sized to redundantly back a load up to 20 A total — for a larger protected load, a higher-current SITOP power supply pair is needed upstream, not a different RED1200 variant. The output formula (Vin - approx. 0.6 V) indicates diode-based decoupling, so it needs no control power or configuration and drops directly into an existing 24 V DC bus between two supplies. The -40…+70 °C operating range and 97.5% efficiency keep self-heating low even in sealed enclosures.
Redundant 24 V power feeds for PLCs and safety-critical control loops, and dual-supply cabinet designs that need to eliminate a single point of failure.
| product brand name | SITOP |
|---|---|
| product type designation | RED1200 |
| product designation | Redundancy module |
| type of the power supply network | DC voltage |
|---|---|
| voltage curve at input | DC |
| supply voltage at DC | 12 ... 48 V |
| input voltage at DC | 10 ... 58 V |
| voltage curve at output | Controlled DC voltage |
|---|---|
| number of outputs | 1 |
| output voltage at DC rated value | 24 V |
| formula for output voltage | Vin - approx. 0.6 V |
| output voltage: at output 1 at DC rated value | 24 V |
| output voltage: at output 1 at DC | 12 ... 48 V |
| output voltage adjustable | No |
| output current: rated value | 20 A |
| bridging of equipment | No |
| Part number | 6EP4346-7RB00-0AX0 |
|---|---|
| Type designation | RED1200 |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 4025515155232 |
| ETIM class | EC002540 |
| eCl@ss | 27040701 |
| efficiency in percent | 97.5 % |
|---|---|
| power loss [W]: at rated output voltage for rated value of the output current typical | 12 W |
| power loss [W]: during no-load operation maximum | 0.1 W |
| galvanic isolation between input and output | No |
|---|---|
| operating resource protection class | Class III |
| protection class IP | IP20 |
| standard: for emitted interference | EN 61000-6-3 |
|---|---|
| standard: for interference immunity | EN 61000-6-2 |
| certificate of suitability: CE marking | Yes |
|---|---|
| certificate of suitability: UL approval | Yes; cULus-Listed (UL 508, CSA C22.2 No. 107.1), File E197259 |
| certificate of suitability: NEC Class 2 | No |
| MTBF at 40 °C | 8 100 000 h |
| certificate of suitability: IECEx | No |
|---|---|
| certificate of suitability: ATEX | No |
| certificate of suitability: ULhazloc approval | No |
| certificate of suitability: FM registration | No |
| shipbuilding approval | No |
|---|---|
| Marine classification association: American Bureau of Shipping Europe Ltd. (ABS) | No |
| Marine classification association: French marine classification society (BV) | No |
| Marine classification association: Det Norske Veritas (DNV) | No |
| Marine classification association: Lloyds Register of Shipping (LRS) | No |
| Environmental Product Declaration | Yes |
|---|---|
| global warming potential [CO2 eq]: total | 349.9 kg |
| global warming potential [CO2 eq]: during manufacturing | 20.5 kg |
| global warming potential [CO2 eq]: during operation | 328.8 kg |
| global warming potential [CO2 eq]: after end of life | 0.48 kg |
| ambient temperature: during operation | -40 ... +70 °C; with natural convection |
|---|---|
| ambient temperature: during transport | -40 ... +85 °C |
| ambient temperature: during storage | -40 ... +85 °C |
| environmental category according to IEC 60721 | Climate class 3K3, 5 ... 95% no condensation |
| type of electrical connection | push-in terminals |
|---|---|
| at input | In1, In2: each for 0.2 ... 10 mm2 |
| at output | Out1: 0.2 ... 10 mm2 |
| width × height × depth of the enclosure | 35 × 135 × 125 mm |
|---|---|
| installation width × mounting height | 35 mm × 225 mm |
| required spacing: top | 45 mm |
| required spacing: bottom | 45 mm |
| required spacing: left | 0 mm |
| required spacing: right | 0 mm |
| fastening method | Snaps onto DIN rail EN 60715 35x7.5/15 |
| DIN-rail mounting | Yes |
| S7 rail mounting | No |
| wall mounting | No |
| housing can be lined up | Yes |
| other information | Specifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified) |
|---|
| eClass | 16 27-04-07-01 |
|---|---|
| ETIM | 10 EC002540 |
| IDEA | 4 4130 |
| UNSPSC | 15 39-12-10-04 |
| Net weight | 0.5 kg |
|---|---|
| Package dimensions | 190 × 185 × 70 mm |
| Country of origin | Romania |
| Shipping weight | 1.0 kg |
| Ships from | Türkiye |
| Dispatch | 13 Nov |
| Stock | In stock |
Source: manufacturer data · Last verified: 01 Nov 2026
No documents are on file for this part yet.
Ask us for the datasheetThe rated current of RED1200 is 20 A.
The rated motor power of RED1200 is 12 W kW.
The tariff (HS) code on file for RED1200 is 85049090.
The EAN (GTIN) of RED1200 is 4025515155232.
RED1200 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival. Stock items are dispatched within 1–2 business days.
Master PLC system components: CPU, power supply, I/O modules, communication interfaces, and software with sizing formulas and selection tips. Shop at Stoklink.