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- Part number
- 6EP1961-2BA00
- Model no
- select
In stock · 11
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Siemens 6EP1961-2BA00 SITOP select 4-Channel 24V 40A Diagnostics Selectivity Module
Siemens SITOP select selectivity module, 6EP1961-2BA00, 4x2-10A adjustable, 24V/40A input, IP20.
Description
About the select
About the select
The Siemens SITOP select 6EP1961-2BA00 is a 4-channel diagnostics selectivity module that takes a 24 V DC/40 A input and distributes it across four outputs rated 10 A each, with an adjustable current threshold of 2-10 A per channel set by potentiometer. It isolates a faulted branch circuit without tripping the upstream 24 V supply.
Certifications & Standards
- CE
- UKCA
- EAC
- CB
Selection Notes
The 2-10 A adjustable threshold and 4x10 A output split let this module protect four 24 V branch circuits from a single 40 A supply, tripping only the overloaded branch instead of the whole bus - the core selectivity function. Compare against lower-current selectivity module variants in the same family, sized for branch loads under 3 A per channel; pick this 6EP1961-2BA00 when individual loads run above 3 A per channel. The blade-type input fuse (15 A, user-replaceable) is the field-serviceable part after a sustained overcurrent event.
Applications
Used downstream of a central 24 V DC power supply to protect multiple independent control circuits - PLC I/O, sensor/actuator branches, valve manifolds - so a short on one branch does not shut down the whole cabinet.
Specification
Full specification
General information 4
| product brand name | SITOP |
|---|---|
| product type designation | select |
| product designation | SITOP Selectivity module |
| type of current supply | Diagnosis module, 4 x 10 A |
Input 5
| type of the power supply network | Controlled DC voltage (SITOP select is not designed for operation with DC UPS module 40 A (6EP1 931-2FC21/-2FC42) |
|---|---|
| supply voltage at DC rated value | 24 V |
| input voltage at DC | 22 ... 30 V |
| overvoltage overload capability | 35 V; 100 ms |
| input current at rated input voltage 24 V rated value | 40 A |
Output 10
| voltage curve at output | controlled DC voltage |
|---|---|
| formula for output voltage | Vin - approx. 0.3 V |
| relative overall tolerance of the voltage note | In accordance with the supplying input voltage |
| number of outputs | 4 |
| output current up to 60 °C per output rated value | 10 A |
| adjustable current response value current of the current-dependent overload release | 2 ... 10 A |
| type of response value setting | via potentiometer |
| response delay maximum | 5 s |
| product feature parallel switching of outputs | No |
| type of outputs connection | Simultaneous connection of all outputs after power up of the supply voltage, delay time of 24 ms or 100 ms programmable for sequential connection |
Show all 86 specifications ↓ Show less ↑67 more values in Identification, Efficiency, Switch-off characteristic, Protection and monitoring, Safety, Standards, specifications, approvals, Standards, specifications, approvals hazardous environments, Standards, specifications, approvals marine classification, Ambient conditions, Connection method, Mechanical data, Accessories, Version Classification, Logistics.
Identification 10
| Part number | 6EP1961-2BA00 |
|---|---|
| Type designation | select |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 4025515150640 |
| ETIM class | EC001440 |
| eCl@ss | 27371802 |
Efficiency 2
| efficiency in percent | 97 % |
|---|---|
| power loss [W] at rated output voltage for rated value of the output current typical | 30 W |
Switch-off characteristic 6
| switching characteristic: of the excess current | Iout = 1.0 ...1.3 x set value, switch-off after approx. 5 s |
|---|---|
| switching characteristic: of the current limitation | Iout = 1.3 x set value, switch-off after approx. 50 ... 100 ms |
| switching characteristic: of the immediate switch-off | Iout > set value and Vin < 20 V, switch-off after approx. 0.5 ms |
| residual current at switch-off typical | 20 mA |
| design of the reset device/resetting mechanism | Using keys on the module |
| remote reset function | - |
Protection and monitoring 3
| fuse protection type at input | Blade-type fuse per output (equipped when delivered with 15 A fuse) |
|---|---|
| display version for normal operation | Two-color LED per output: green LED for "Output switched through"; red LED for "Output switched off due to overcurrent" |
| design of the switching contact for signaling function | Common signal contact (NO contact, rating 0.5 A/24 V DC) |
Safety 6
| galvanic isolation between input and output at switch-off | No |
|---|---|
| standard for safety | according to EN 62368-1 |
| operating resource protection class | Class III |
| protection class IP | IP20 |
| standard: for emitted interference | EN 55022 Class B |
| standard: for interference immunity | EN 61000-6-2 |
Standards, specifications, approvals 6
| certificate of suitability: CE marking | Yes |
|---|---|
| certificate of suitability: UL approval | Yes; UL-Recognized (UL 2367) File E328600; cULus-Listed (UL 508, CSA C22.2 No. 107.1) File E197259 |
| certificate of suitability: UKCA marking | Yes |
| certificate of suitability: EAC approval | Yes |
| type of certification: CB-certificate | Yes |
| MTBF at 40 °C | 616 675 h |
Standards, specifications, approvals hazardous environments 2
| certificate of suitability: IECEx | No |
|---|---|
| certificate of suitability: ATEX | No |
Standards, specifications, approvals marine classification 1
| shipbuilding approval | No |
|---|
Ambient conditions 4
| 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 |
Connection method 5
| type of electrical connection | screw terminal |
|---|---|
| at input | +24 V: 2 screw terminals for 0.5 ... 16 mm2; 0 V: 2 screw terminals for 0.5 ... 4 mm2 |
| at output | Output 1 ... 4: 1 screw terminal each for 0.22 ... 4 mm2 |
| for auxiliary contacts | - |
| for signaling contact | 2 screw terminals for 0.22 ... 4 mm2 |
Mechanical data 11
| width × height × depth of the enclosure | 72 × 90 × 90 mm |
|---|---|
| installation width × mounting height | 72 mm × 190 mm |
| required spacing: top | 50 mm |
| required spacing: bottom | 50 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 |
Accessories 1
| product component included | 4x blade-type fuse 15 A |
|---|
Version Classification 4
| eClass | 16 27-37-18-02 |
|---|---|
| ETIM | 10 EC001440 |
| IDEA | 4 4727 |
| UNSPSC | 15 39-12-15-21 |
Logistics 6
| Net weight | 0.2 kg |
|---|---|
| Country of origin | Romania |
| Shipping weight | 0.7 kg |
| Ships from | Türkiye |
| Dispatch | 13 Nov |
| Stock | In stock |
Source: manufacturer data · Last verified: 01 Nov 2026
Documents
Documents for 6EP1961-2BA00
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Certifications
Certifications and standards
- CE marking
- UKCA marking
- EAC approval
- CB-certificate
Quick answers
Questions about the select
What is the rated current of select?
The rated current of select is 40 A.
Which supply voltage is select rated for?
The rated operational voltage of select is 24 V AC.
What motor power is select rated for?
The rated motor power of select is 30 W kW.
What is the HS code of select for customs?
The tariff (HS) code on file for select is 85363010.
What is the EAN of select?
The EAN (GTIN) of select is 4025515150640.
Where does select ship from, and how fast?
select ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival. Stock items are dispatched within 1–2 business days.
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Series
Siemens SITOP select
- Brand
- Siemens
- Series
- SITOP select
