How to Select an Interface Relay for PLC Outputs
A step-by-step guide to matching PLC output type, coil voltage and current, contact rating, and socket style when selecting an interface relay.
The Siemens 6EP1332-1SH71 is a SIMATIC S7-1200 PM 1207 power module converting 120/230 V AC input (auto-ranging) to a stabilized, isolated 24 V DC output at 2.5 A (60 W). It offers 83% efficiency, short-circuit-proof constant-current protection, and snaps onto a standard DIN rail in a compact 70x100x75 mm enclosure.
Rated at 2.5 A / 60 W, this PM 1207 fits small S7-1200 stations where the CPU plus a modest set of digital I/O and field sensors draw their 24 V from a single module - check total station current draw against the 2.5 A rated output before adding expansion I/O. The auto-ranging 120/230 V AC input means no manual voltage selection is needed across regions, and the ATEX/IECEx/FM hazardous-location ratings extend it to Zone 2 / Division 2 panel installations. Two units can be operated in parallel to increase available power where a single 60 W module isn't enough.
Fits DIN-rail control panels for small machines or process skids where an S7-1200 CPU and its digital I/O need a compact, DIN-rail-mounted 24 V DC supply, including panels destined for ATEX Zone 2 or IECEx Zone 2 hazardous-area installations.
| product brand name | SIMATIC |
|---|---|
| product type designation | PM 1207 |
| product designation | S7-1200 Power Module |
| type of current supply | 24 V/2.5 A |
| type of the power supply network | 1-phase AC |
|---|---|
| phase number | 1 |
| voltage curve at input | AC |
| supply voltage at AC | Automatic range selection |
| supply voltage | 120 V/230 V |
| input voltage 1 at AC | 85 ... 132 V |
| input voltage 2 at AC | 176 ... 264 V |
| supply voltage: at 50 Hz | 230 V |
| supply voltage: at 60 Hz | 120 V |
| line frequency | 50/60 Hz |
| wide range input | No |
| overvoltage overload capability | 2.3 × Vin rated, 1.3 ms |
| buffering time for rated value of the output current in the event of power failure minimum | 20 ms |
| operating condition of the mains buffering | at Vin = 93/187 V |
| input current: at rated input voltage 120 V | 1.2 A |
| input current: at rated input voltage 230 V | 0.67 A |
| current limitation of inrush current at 25 °C maximum | 13 A |
| duration of inrush current limiting at 25 °C: maximum | 3 ms |
| I2t value maximum | 0.5 A2·s |
| fuse protection type | T 3,15 A/250 V (not accessible) |
| fuse protection type in the feeder | Recommended miniature circuit breaker: 16 A characteristic B or 10 A characteristic C |
| voltage curve at output | Controlled, isolated DC voltage |
|---|---|
| product function output voltage controlled | Yes |
| product function output voltage stabilized | Yes |
| output voltage at DC rated value | 24 V |
| output voltage: at output 1 at DC rated value | 24 V |
| output voltage: at output 1 at DC | 24 V |
| output voltage adjustable | No; - |
| relative overall tolerance of the voltage | 3% |
| relative control precision of the output voltage: on slow fluctuation of input voltage | 0.1 % |
| residual ripple: maximum | 150 mV |
| voltage peak: maximum | 240 mV |
| display version for normal operation | Green LED for 24 V OK |
| behavior of the output voltage when switching on | No overshoot of Vout (soft start) |
| response delay maximum | 6 s; 2 s at 230 V, 6 s at 120 V |
| voltage increase time of the output voltage: typical | 10 ms |
| output current: rated value | 2.5 A |
| output current: rated range | 0 ... 2.5 A |
| supplied active power typical | 60 W |
| short-term overload current: on short-circuiting during the start-up typical | 6 A |
| short-term overload current: at short-circuit during operation typical | 6 A |
| duration of overloading capability for excess current: on short-circuiting during the start-up | 100 ms |
| duration of overloading capability for excess current: at short-circuit during operation | 100 ms |
| bridging of equipment | Yes |
| number of parallel-switched equipment resources for increasing the power | 2 |
| Part number | 6EP1332-1SH71 |
|---|---|
| Type designation | PM 1207 |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 4025515152446 |
| ETIM class | EC002540 |
| eCl@ss | 27040701 |
| efficiency in percent | 83 % |
|---|---|
| power loss [W]: at rated output voltage for rated value of the output current typical | 12 W |
| relative control precision of the output voltage with rapid fluctuation of the input voltage by +/- 15% typical | 0.3 % |
|---|---|
| relative control precision of the output voltage load step of resistive load 50/100/50 % typical | 3% |
| setting time: load step 50 to 100% typical | 5 ms |
| setting time: load step 100 to 50% typical | 5 ms |
| setting time: maximum | 5 ms |
| design of the overvoltage protection | < 33 V |
|---|---|
| property of the output short-circuit proof | Yes |
| design of short-circuit protection | Constant current characteristic |
| typical | 2.65 A |
| enduring short circuit current RMS value: typical | 2.7 A |
| galvanic isolation between input and output | Yes |
|---|---|
| galvanic isolation | Output voltage: SELV, ES1 (IEC 62368-1), DVC As (IEC 61204-7) |
| operating resource protection class | Class I |
| leakage current: maximum | 3.5 mA |
| protection class IP | IP20 |
| standard: for emitted interference | EN 55022 Class B |
|---|---|
| standard: for mains harmonics limitation | not applicable |
| 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; cURus- Recognized (UL 60950-1, CSA C22.2 No. 60950-1) File E151273 |
| certificate of suitability: UKCA marking | Yes |
| certificate of suitability: EAC approval | Yes |
| certificate of suitability: NEC Class 2 | Yes; according to UL1310, File E151273 |
| type of certification: CB-certificate | Yes |
| MTBF at 40 °C | 1 492 537 h |
| certificate of suitability: IECEx | Yes; IECEx Ex nA nC IIC T4 Gc |
|---|---|
| certificate of suitability: ATEX | Yes; ATEX (EX) II 3G Ex ec nC IIC T4 Gc |
| certificate of suitability: ULhazloc approval | Yes |
| certificate of suitability: UKEX | Yes |
| certificate of suitability: CCC for hazardous zone according to GB standard | Yes |
| certificate of suitability: FM registration | Yes; Class I, Div. 2, Group ABCD, T4 |
| shipbuilding approval | Yes |
|---|---|
| Marine classification association: American Bureau of Shipping Europe Ltd. (ABS) | Yes |
| Marine classification association: French marine classification society (BV) | Yes |
| Marine classification association: Det Norske Veritas (DNV) | Yes |
| Marine classification association: Lloyds Register of Shipping (LRS) | Yes |
| Marine classification association: Nippon Kaiji Kyokai (NK) | Yes |
| Environmental Product Declaration | Yes |
|---|---|
| global warming potential [CO2 eq]: total | 334.2 kg |
| global warming potential [CO2 eq]: during manufacturing | 5.7 kg |
| global warming potential [CO2 eq]: during operation | 328.2 kg |
| global warming potential [CO2 eq]: after end of life | 0.21 kg |
| ambient temperature: during operation | 0 ... 60 °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 | screw terminal |
|---|---|
| at input | L, N, PE: 1 screw terminal each for 0.5 ... 2.5 mm2 |
| at output | L+, M: 2 screw terminals each for 0.5 ... 2.5 mm2 |
| for auxiliary contacts | - |
| width × height × depth of the enclosure | 70 × 100 × 75 mm |
|---|---|
| installation width × mounting height | 70 mm × 140 mm |
| required spacing: top | 20 mm |
| required spacing: bottom | 20 mm |
| required spacing: left | 0 mm |
| required spacing: right | 0 mm |
| fastening method | Snaps onto DIN rail EN 60715 35x7.5/15, wall mounting |
| DIN-rail mounting | Yes |
| S7 rail mounting | No |
| wall mounting | Yes |
| housing can be lined up | Yes |
| other information | Specifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified) |
|---|
| Environmental Product Declaration: global warming potential [CO2 eq] / during manufacturing | 5.7 kg |
|---|
| Net weight | 0.3 kg |
|---|---|
| Country of origin | Romania |
| Shipping weight | 0.8 kg |
| Ships from | Türkiye |
| Dispatch | 16 Nov |
| Stock | Low 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 PM 1207 is 2.5 A.
The rated operational voltage of PM 1207 is 120–230 V AC.
The rated motor power of PM 1207 is 12 W kW.
The tariff (HS) code on file for PM 1207 is 85044083.
The EAN (GTIN) of PM 1207 is 4025515152446.
PM 1207 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival. Stock items are dispatched within 1–2 business days.
A step-by-step guide to matching PLC output type, coil voltage and current, contact rating, and socket style when selecting an interface relay.
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