Siemens 6EP1437-3BA00 Three-Phase 24 V DC Power Supply
A high-current stabilized SITOP modular power supply for industrial 24 V DC control loads.
Product Profile
6EP1437-3BA00 supplies a stabilized DC bus from a three-phase industrial mains connection. It belongs to the earlier SITOP modular generation and is used in control cabinets with substantial 24 V load demand.
The article is obsolete and has a named successor, but mechanical, terminal and protection differences must be evaluated before conversion.
Technical Data
| Manufacturer | Siemens |
|---|---|
| Article Number | 6EP1437-3BA00 |
| Product Family | SITOP Modular |
| Input | 400 to 500 V AC, three phase |
| Nominal Output | 24 V DC, 40 A |
| Output Adjustment | 24 to 28.8 V DC |
| Rated Output Power | 960 W |
| Typical Efficiency | 90% |
| Typical Power Loss | 106 W |
| Mounting | 35 × 15 mm DIN rail |
| Degree of Protection | IP20 |
| Ambient Operation | 0 to 70 °C with derating above 60 °C |
| Successor | 6EP3437-8SB00-0AY0 |
System Role
- Stabilized high-current supply for a central 24 V control-power bus.
- Adjustable output for cable-drop compensation within the permitted range.
- Natural-convection cooling for cabinet installation.
- Operating-status and system-integration provisions associated with the SITOP modular family.
Compatibility
- Size the supply from steady-state load, peak demand, redundancy arrangement and conductor drop.
- Verify upstream protective devices and the available three-phase supply.
- Do not treat the successor as mechanically identical until the cabinet layout is checked.
Applications
- PLC, distributed-I/O, contactor and instrumentation power in industrial control cabinets.
- Maintenance of machines designed around the legacy SITOP modular form factor.
- Successor conversion projects where feeder, mounting and load behavior are revalidated.
FAQ
Is the designated successor a drop-in replacement for 6EP1437-3BA00?
Not automatically; dimensions, terminals, protection, signaling and commissioning should be compared first.
What cabinet checks are important for 6EP1437-3BA00?
Review rail space, vertical ventilation clearance, ambient temperature and the path for dissipated heat.
Can 6EP1437-3BA00 be selected only from the summed nominal load?
No. Include startup peaks, reserve capacity, redundancy strategy and voltage drop.
Which upstream details should accompany a 6EP1437-3BA00 enquiry?
Provide mains voltage, feeder protective device, conductor size and any isolation or surge equipment.
Can 6EP1437-3BA00 units be paralleled without checking the design?
Parallel or redundant operation must follow the documented SITOP arrangement and load-sharing requirements.
What should be verified after replacing 6EP1437-3BA00?
Measure output under load and test signaling, protective behavior, downstream startup and cabinet temperature.
Recommended Models
| 6ES7322-8BH10-0AB0 | ABB 1SAP180100R0001 | P7-200 |
| 8V1016.50-2 | FW-321 | PTB 02 ATEX 2085X |
| Indramat KDF2.2-050-300-W0-220 225994 109-0680-4B03-02 | AF09-30-10-13 | VRW8203131/24N4 |
| E12-C92-451 | SY080-200/1102 SY8 HN | P209865 |
| PS 1215 C 70-1174-01 | 4WRZE25W842570/6EG24N9ETK31 + 3DREPE | 6DD1670-0AF0 |
| 6AV6618-7GD01-3AB0 | RGC1A60D40KGE | 4PP015.0420-01 |
| D116H066 | FS23939-19-07-LL | LC-200S |
| 2T2A-03400-004 | MPZ20 | LS 706 336965 24 |
| GE VT14130WDM | Siemens 1FW6130-8QB15-2JC2 1FW6130-8RA15-0AA0 | 82L25-103B800 |
| Rexroth 4WE 6 D62/EG24K4 R900554753 | RSL410-M 53800105 | 342911 / 2 |
