https://www.phoenixcontact.com/pi/products/3211255
08/18/2018Page3/5
Feed-through terminal block-PT 4-TWIN BK-3211255
Technical data
Connection data
Conductor cross section flexible min. 0.2 mm²
Conductor cross section flexible max. 4 mm²
Min. AWG conductor cross section, flexible 24
Max. AWG conductor cross section, flexible 12
Conductor cross section flexible, with ferrule without plastic sleeve min. 0.25 mm²
Conductor cross section flexible, with ferrule without plastic sleeve max. 4 mm²
Conductor cross section flexible, with ferrule with plastic sleeve min. 0.25 mm²
Conductor cross section flexible, with ferrule with plastic sleeve max. 4 mm²
2 conductors with same cross section, stranded, TWIN ferrules with
plastic sleeve, min.
0.5 mm²
2 conductors with same cross section, stranded, TWIN ferrules with
plastic sleeve, max.
1 mm²
Stripping length 10 mm ... 12 mm
Internal cylindrical gage A4
Standards and Regulations
Connection in acc. with standard IEC 60947-7-1
Flammability rating according to UL 94 V0
Fire protection for rail vehicles (DIN EN 45545-2) R22 HL 1 - HL 3 HL 1 - HL 3 HL 1 - HL 3 HL 1 - HL 3
Fire protection for rail vehicles (DIN EN 45545-2) R23 HL 1 - HL 3 HL 1 - HL 3 HL 1 - HL 3 HL 1 - HL 3
Fire protection for rail vehicles (DIN EN 45545-2) R24 HL 1 - HL 3 HL 1 - HL 3 HL 1 - HL 3 HL 1 - HL 3
Fire protection for rail vehicles (DIN EN 45545-2) R26 HL 1 - HL 3 HL 1 - HL 3 HL 1 - HL 3 HL 1 - HL 3
Environmental Product Compliance
China RoHS Environmentally friendly use period: unlimited = EFUP-e
No hazardous substances above threshold values
Drawings
Circuit diagram
Approvals
Approvals
Approvals
CSA / UL Recognized / cUL Recognized / LR / BV / ABS / PRS / NK / DNV GL / EAC / cULus Recognized
Ex Approvals
ATEX / IECEx / UL Recognized / cUL Recognized / cULus Recognized