Properties
| Version | Feed-through terminal, PUSH IN, 2.5 mm², 800 V, 24 A, black |
| Order No. | 1521820000 |
| Type | A4C 2.5 BK |
| GTIN (EAN) | 4050118328257 |
| Qty. | 100 items |
| Depth | 36.5 mm |
| Depth (inches) | 1.437 inch |
| Depth including DIN rail | 37 mm |
| Height | 77.5 mm |
| Height (inches) | 3.051 inch |
| Width | 5.1 mm |
| Width (inches) | 0.201 inch |
| Net weight | 9.82 g |
| Storage temperature | -25 °C...55 °C |
| Continuous operating temp., min. | -60 °C |
| Continuous operating temp., max. | 130 °C |
| RoHS Compliance Status | Compliant without exemption |
| REACH SVHC | No SVHC above 0.1 wt% |
| Material | Wemid |
| Colour | black |
| Colour of operational elements | orange |
| UL 94 flammability rating | V-0 |
| Certificate No. (ATEX) | TUEV16ATEX7909U |
| Certificate No. (IECEX) | IECEXTUR16.0036U |
| Max. voltage (ATEX) | 550 V |
| Current (ATEX) | 21 A |
| Wire cross section max. (ATEX) | 2.5 mm² |
| Max. voltage (IECEX) | 550 V |
| Current (IECEX) | 21 A |
| Wire cross section max. (IECEX) | 2.5 mm² |
| Marking EN 60079-7 | Ex eb II C Gb |
| Ex 2014/34/EU label | II 2 G D |
| End cover plate required | Yes |
| Number of potentials | 1 |
| Number of levels | 1 |
| Number of clamping points per level | 4 |
| Number of potentials per tier | 1 |
| Levels cross-connected internally | No |
| PE connection | No |
| Rail | TS 35 |
| N-function | No |
| PE function | No |
| PEN function | No |
| Explosion-tested version | Yes |
| Installation advice | Rail |
| Open sides | right |
| Snap-on | No |
| Type of fixing | Snap-on |
| Type of mounting | TS 35 |
| With snap-in pegs | No |
| Connection type, additional connection | PUSH IN |
| Blade size | 0.6 x 3.5 mm |
| Clamping range, max. | 4 mm² |
| Clamping range, min. | 0.14 mm² |
| Connection cross-section, stranded, max. | 4 mm² |
| Connection cross-section, stranded, min. | 0.5 mm² |
| Connection direction | top |
| Gauge to IEC 60947-1 | A3 |
| Number of connections | 4 |
| Stripping length | 10 mm |
| Tube length for twin wire-end ferrule |
|
| Tube length for wire-end ferrule with plastic collar DIN 46228/4 |
|
| Tube length for wire-end ferrule without plastic collar DIN 46228/1 |
|
| Twin wire-end ferrules, max. | 0.75 mm² |
| Twin wire-end ferrules, min. | 0.5 mm² |
| Type of connection | PUSH IN |
| Wire connection cross section AWG, max. | AWG 12 |
| Wire connection cross section AWG, min. | AWG 28 |
| Wire connection cross section, finely stranded, max. | 4 mm² |
| Wire connection cross section, finely stranded, min. | 0.5 mm² |
| Wire connection cross-section, finely stranded with wire-end ferrules DIN 46228/1, max. | 4 mm² |
| Wire connection cross-section, finely stranded with wire-end ferrules DIN 46228/1, min. | 0.5 mm² |
| Wire connection cross-section, finely stranded with wire-end ferrules DIN 46228/4, max. | 2.5 mm² |
| Wire connection cross-section, finely stranded with wire-end ferrules DIN 46228/4, min. | 0.5 mm² |
| Wire connection cross-section, solid core, max. | 2.5 mm² |
| Wire connection cross-section, solid core, min. | 0.5 mm² |
| Certificate No. (CSA) | 200039-70089609 |
| Current size B (CSA) | 20 A |
| Current size C (CSA) | 20 A |
| Current size D (CSA) | 5 A |
| Voltage size B (CSA) | 600 V |
| Voltage size C (CSA) | 600 V |
| Voltage size D (CSA) | 600 V |
| Wire cross section max. (CSA) | 12 AWG |
| Wire cross section min. (CSA) | 28 AWG |
| Installation advice | Rail |
| Rail | TS 35 |
| Standards | IEC 60947-7-1 |
| Wire connection cross section AWG, max. | AWG 12 |
| Wire connection cross section AWG, min. | AWG 28 |
| Rated cross-section | 2.5 mm² |
| Rated voltage | 800 V |
| Rated DC voltage | 800 V |
| Rated current | 24 A |
| Current at maximum wires | 24 A |
| Standards | IEC 60947-7-1 |
| Volume resistance according to IEC 60947-7-x | 1.33 mΩ |
| Rated impulse withstand voltage | 8 kV |
| Power loss in accordance with IEC 60947-7-x | 0.77 W |
| Pollution severity | 3 |
| Surge voltage category | III |
| Certificate No. (cURus) | E60693 |
| Conductor size Factory wiring max. (cURus) | 12 AWG |
| Conductor size Factory wiring min. (cURus) | 28 AWG |
| Conductor size Field wiring max. (cURus) | 12 AWG |
| Conductor size Field wiring min. (cURus) | 28 AWG |
| Current size B (cURus) | 20 A |
| Current size C (cURus) | 20 A |
| Current size D (cURus) | 5 A |
| Voltage size B (cURus) | 600 V |
| Voltage size C (cURus) | 600 V |
| Voltage size D (cURus) | 600 V |
| Approval/Certificate/Document of Conformity |
[Attestation of Conformity](https://mdcop.weidmueller.com/mediadelivery/asset/900_58091)
[UKCA Ex Attestation of Conformity](https://mdcop.weidmueller.com/mediadelivery/asset/900_253939) [CE Declaration of Conformity](https://mdcop.weidmueller.com/mediadelivery/asset/900_38678) [UKCA declaration of conformity](https://mdcop.weidmueller.com/mediadelivery/asset/900_284539) [Confirmation of Standards EN 45545-2_2020-10](https://mdcop.weidmueller.com/mediadelivery/asset/900_308425) [IECEx Certificate](https://mdcop.weidmueller.com/mediadelivery/asset/900_58128) [ATEX Certificate](https://mdcop.weidmueller.com/mediadelivery/asset/900_58163) [CB Test Certificate](https://mdcop.weidmueller.com/mediadelivery/asset/900_89295) [DNVGL certificate](https://mdcop.weidmueller.com/mediadelivery/asset/900_152120) [CCC Ex Certificate](https://mdcop.weidmueller.com/mediadelivery/asset/900_178457) [UKCA Ex Certificate](https://mdcop.weidmueller.com/mediadelivery/asset/900_253942) [20-AV4BO-0269U](https://mdcop.weidmueller.com/mediadelivery/asset/900_318070) [DNV Certificate](https://mdcop.weidmueller.com/mediadelivery/asset/900_320351) |
| Engineering Data | [CAD data -- STEP](https://mdcop.weidmueller.com/mediadelivery/asset/900_62024) |
| Eplan Data Portal | [Eplan data](https://dataportal.eplan.com/part-details/WEI.1521820000) |
| CADENAS eCATALOG | [CAX data](https://weidmueller-embedded.partcommunity.com?catalog=weidmueller_qs&part=1521820000) |
| WSCAD Universe | [WSCAD data](https://wscaduniverse.com/part-detail?manufacturerId=88&type=0&partNumber=1521820000&norm=0) |
| Tender specification |
[Klippon® Connect 1521820000 EN](https://mdcop.weidmueller.com/mediadelivery/asset/900_75769)
[Klippon® Connect 1521820000 DE](https://mdcop.weidmueller.com/mediadelivery/asset/900_75770) |
| User Documentation |
[NTI_A4C 2.5.pdf](https://mdcop.weidmueller.com/mediadelivery/asset/900_58146)
[NTI_ALO 6](https://mdcop.weidmueller.com/mediadelivery/asset/900_58156) [StorageConditionsTerminalBlocks](https://mdcop.weidmueller.com/mediadelivery/asset/900_87149) [NTI ALO16](https://mdcop.weidmueller.com/mediadelivery/asset/900_103845) [User Manual AXC 1.5-16](https://mdcop.weidmueller.com/mediadelivery/asset/900_229201) |
| Safety Information | [Go to website](https://www.weidmueller.com/int/service/safety_info.jsp) |
| Catalogues | [Catalogues in PDF-format](LINK/Catalog.html) |
| ETIM 6.0 | EC000897 |
| ETIM 7.0 | EC000897 |
| ETIM 8.0 | EC000897 |
| ETIM 9.0 | EC000897 |
| ECLASS 9.0 | 27-14-11-20 |
| ECLASS 9.1 | 27-14-11-20 |
| ECLASS 10.0 | 27-14-11-20 |
| ECLASS 11.0 | 27-14-11-20 |
| ECLASS 12.0 | 27-14-11-20 |
| ECLASS 13.0 | 27-25-01-01 |
| ECLASS 14.0 | 27-25-01-01 |
| Approvals |             |
| ROHS | Conform |
| UL File Number Search | [UL Website](LINK/UL_search.html) |
| Certificate No. (cURus) | E60693 |
| Certificate No. (cURusEX) | E184763 |