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- Part number
- 6EP4437-8XB00-0CY0
- Model no
- CNX8600
SITOP CNX8600Siemens 6EP4437-8XB00-0CY0 SITOP CNX8600 4x10A Expansion Module 24V DC 40A Power Supply
SITOP CNX8600 4x10A expansion module for PSU8600 - 4 isolated 24V DC outputs, 10A each, 40A total, 97% efficient.
Description
About the CNX8600
About the CNX8600
The Siemens 6EP4437-8XB00-0CY0 is a SITOP CNX8600 output expansion module that adds four isolated 24V DC outputs to a PSU8600 power supply system, each output rated 10A for a combined 40A output current at 97% efficiency. Outputs meet NEC-aligned current limits and connect through plug-in screw terminals on a DIN-rail-mounted 60 x 125 x 150 mm enclosure.
Certifications & Standards
- CE
- EAC
- SEMI F47
- CB
- ABS
- DNV
- EPD
Selection Notes
The four 10A outputs suit machines with fewer, higher-current 24V DC branches - servo drive logic supplies, larger valve manifolds, motor brake circuits - where a single circuit can draw up to 10A; pick the higher-channel-count CNX8600 variant instead when a machine needs many separate low-current branches rather than fewer high-current ones. Each output still has its own adjustable 0.5-10A overload threshold and short-circuit cut-off, so a fault on one 10A branch does not affect the other three or the PSU8600 base unit. At 60 x 125 x 150 mm the module is narrower than the 8-output version, which matters in cabinets where DIN-rail space is tight.
Applications
Fits control panels that need a small number of higher-current 24V DC branches from a shared PSU8600 supply - for example splitting power between a drive's control electronics and a bank of larger contactors without oversizing the whole system to the highest single load.
Specification
Full specification
General information 4
| product brand name | SITOP |
|---|---|
| product type designation | CNX8600 |
| product designation | Extension module SITOP CNX8600 |
| type of current supply | 4x 10 A |
Output 35
| voltage curve at output | Controlled, isolated DC voltage |
|---|---|
| product function output voltage controlled | Yes |
| product function output voltage stabilized | Yes |
| number of outputs | 4 |
| output voltage at DC rated value | 24 V |
| output voltage: at output 1 at DC rated value | 24 V |
| output voltage: at output 2 at DC rated value | 24 V |
| output voltage: at output 3 at DC rated value | 24 V |
| output voltage: at output 4 at DC rated value | 24 V |
| output voltage: at output 1 at DC | 5 ... 24 V |
| output voltage: at output 2 at DC | 5 ... 24 |
| output voltage: at output 3 at DC | 5 ... 24 |
| output voltage: at output 4 at DC | 5 ... 24 |
| output voltage adjustable | Yes; via potentiometer or IE/PN interface |
| adjustable output voltage | 4 ... 28 V; Derating > 24 V: 4%/V; max. 240 W per output |
| relative overall tolerance of the voltage | 3% |
| relative control precision of the output voltage: on slow fluctuation of input voltage | 0.2 % |
| residual ripple: maximum | 100 mV |
| voltage peak: maximum | 200 mV |
| display version for normal operation | 3-color LED for operating state module; 3-color LED per output for operating state output |
| type of signal at output | Relay contact (changeover contact, contact current capacity DC 60 V/0.3 A) for "Operating state OK" at power supply unit PSU8600 |
| behavior of the output voltage when switching on | No overshoot of Vout (soft start) |
| response delay maximum | 1.5 s; Without on-delay of the outputs |
| type of outputs connection | simultaneous switch-on of all outputs after device power-up or delay time of 25 ms, 100 ms, or "load-optimized" for sequential switch-on of the outputs via DIP switch to PSU8600 power supply configurable |
| voltage increase time of the output voltage: maximum | 500 ms |
| output current: rated value | 40 A |
| output current: per output | 10 A |
| output current: at output 1 rated value | 10 A |
| output current: at output 2 rated value | 10 A |
| output current: at output 3 rated value | 10 A |
| output current: at output 4 rated value | 10 A |
| output current: rated range | 0 ... 40 A; No increase in the maximum output power of the overall system SITOP PSU8600 via the expansion module SITOP CNX8600 possible |
| supplied active power typical | 960 W |
| parallel switching of outputs | No |
| bridging of equipment | No |
Efficiency 2
| efficiency in percent | 97 % |
|---|---|
| power loss [W]: at rated output voltage for rated value of the output current typical | 30 W |
Show all 123 specifications ↓ Show less ↑82 more values in Identification, Closed-loop control, Protection and monitoring, Interfaces, Safety, EMC, Standards, specifications, approvals, Standards, specifications, approvals hazardous environments, Standards, specifications, approvals marine classification, Standards, specifications, approvals Environmental Product Declaration, Ambient conditions, Connection method, Mechanical data, Accessories, Version Classification, Logistics.
Identification 10
| Part number | 6EP4437-8XB00-0CY0 |
|---|---|
| Type designation | CNX8600 |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 4025515154495 |
| ETIM class | EC002540 |
| eCl@ss | 27040701 |
Closed-loop control 3
| relative control precision of the output voltage with rapid fluctuation of the input voltage by +/- 15% typical | 0.1 % |
|---|---|
| relative control precision of the output voltage load step of resistive load 50/100/50 % typical | 0.4 % |
| setting time: maximum | 10 ms |
Protection and monitoring 9
| design of the overvoltage protection | max. 35 V (max. 500 ms) |
|---|---|
| property of the output short-circuit proof | Yes |
| design of short-circuit protection | electronic overload cut-off |
| adjustable current response value current of the current-dependent overload release | 0.5 ... 10 A |
| type of response value setting | via potentiometer or IE/PN interface |
| switching characteristic: of the excess current | Ia >1.0...<1.5 x Ia threshold for 5 s permissible; Ia limit (= 1.5 x Ia threshold) for 200 ms permissible |
| display version for overload and short circuit | 3-color LED for operating state module; 3-color LED per output for operating state output |
| design of the reset device/resetting mechanism | via sensor per output or IE/PN interface |
| remote reset function | non-isolated 24 V input (signal level "high" at > 15 V) at power supply PSU8600 |
Interfaces 2
| product function communication function | Yes |
|---|---|
| design of the interface | Ethernet/PROFINET via power supply unit PSU8600 |
Safety 4
| 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 III |
| protection class IP | IP20 |
EMC 2
| standard: for emitted interference | EN 55022 Class B |
|---|---|
| standard: for interference immunity | EN 61000-6-2 |
Standards, specifications, approvals 7
| 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: EAC approval | Yes |
| certificate of suitability: NEC Class 2 | No |
| certificate of suitability: SEMI F47 | Yes |
| type of certification: CB-certificate | Yes |
| MTBF at 40 °C | 358 372 h |
Standards, specifications, approvals hazardous environments 4
| certificate of suitability: IECEx | No |
|---|---|
| certificate of suitability: ATEX | No |
| certificate of suitability: ULhazloc approval | No |
| certificate of suitability: FM registration | No |
Standards, specifications, approvals marine classification 5
| shipbuilding approval | Yes |
|---|---|
| Marine classification association: American Bureau of Shipping Europe Ltd. (ABS) | Yes |
| Marine classification association: French marine classification society (BV) | No |
| Marine classification association: Det Norske Veritas (DNV) | Yes |
| Marine classification association: Lloyds Register of Shipping (LRS) | No |
Standards, specifications, approvals Environmental Product Declaration 5
| Environmental Product Declaration | Yes |
|---|---|
| global warming potential [CO2 eq]: total | 873.7 kg |
| global warming potential [CO2 eq]: during manufacturing | 50.2 kg |
| global warming potential [CO2 eq]: during operation | 822 kg |
| global warming potential [CO2 eq]: after end of life | 1.17 kg |
Ambient conditions 4
| ambient temperature: during operation | -25 ... +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 | Plug-in terminals with screwed connection |
|---|---|
| at output | 1, 2, 3, 4: Two plug-in terminals (1, 2 and 3, 4) with 2 screwed connections each for 0.2 ... 2.5 mm2; Ground: Plug-in terminal with 3 screwed connections for 0.2 ... 2.5 mm2 |
| removable terminal at output | Yes |
| suitability for interaction modular system | Yes |
| type of connection to system components | Via integrated connector |
Mechanical data 11
| width × height × depth of the enclosure | 60 × 125 × 150 mm |
|---|---|
| installation width × mounting height | 60 mm × 225 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 35x15 |
| DIN-rail mounting | Yes |
| S7 rail mounting | No |
| wall mounting | No |
| housing can be lined up | Yes |
Accessories 1
| mechanical accessories | Device identification label 20 mm × 7 mm, TI-grey 3RT2900-1SB20 |
|---|
Version Classification 4
| eClass | 16 27-04-07-01 |
|---|---|
| ETIM | 10 EC002540 |
| IDEA | 4 4130 |
| UNSPSC | 15 39-12-10-04 |
Logistics 6
| Net weight | 1.15 kg |
|---|---|
| Country of origin | Romania |
| Shipping weight | 1.65 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 01 Nov 2026
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Certifications
Certifications and standards
- CE marking
- EAC approval
- SEMI F47
- CB-certificate
- shipbuilding approval
- American Bureau of Shipping Europe Ltd. (ABS)
- Det Norske Veritas (DNV)
- Environmental Product Declaration
Quick answers
Questions about the CNX8600
What is the rated current of CNX8600?
The rated current of CNX8600 is 40 A.
What motor power is CNX8600 rated for?
The rated motor power of CNX8600 is 30 W kW.
What is the HS code of CNX8600 for customs?
The tariff (HS) code on file for CNX8600 is 85049090.
What is the EAN of CNX8600?
The EAN (GTIN) of CNX8600 is 4025515154495.
Where does CNX8600 ship from, and how fast?
CNX8600 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
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Series
Siemens SITOP CNX8600
- Brand
- Siemens
- Series
- SITOP CNX8600
