Item no. 256-743/999-950

Stackable PCB terminal block; push-button; 2.5 mm²; Pin spacing 5/5.08 mm; 1-pole; suitable for Ex-e applications; CAGE CLAMP®; commoning option; 2,50 mm²; light gray

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PU (SPU): 600 (100) Piece
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  • Modular terminal blocks with push-button actuated CAGE CLAMP®
  • Set to metric or inch pin spacing by compressing terminal strips together or pulling them apart
  • Ideal for in-the-field wiring thanks to simplified push-button actuation
  • Convenient, tool-free operation

Product details

Details
Electrical data
Ratings per IEC/EN 60664-1
Ratings per ATEX: PTB 06 ATEX 1061 U / IECEx: PTB 06.0042 U
Legend (ratings) (III / 2) ≙ Overvoltage category III / Pollution degree 2
Approvals per UL 1059
Rated voltage UL (Use Group B) 300 V
Rated current UL (Use Group B) 15 A
Rated voltage UL (Use Group D) 300 V
Rated current UL (Use Group D) 10 A
Approvals per CSA
Rated voltage CSA (Use Group B) 300 V
Rated current CSA (Use Group B) 15 A
Rated voltage CSA (Use Group D) 300 V
Rated current CSA (Use Group D) 10 A
Approvals Ex
Rated voltage EN (Ex e II) 176 V
Rated current (Ex e II) 16 A
Connection data
Connection technology CAGE CLAMP®
Actuation type Push-button
Solid conductor 0,08 … 2,5 mm² / 28 … 12 AWG
Fine-stranded conductor 0,08 … 2,5 mm² / 28 … 12 AWG
Fine-stranded conductor; with insulated ferrule 0,25 … 1,5 mm²
Fine-stranded conductor; with uninsulated ferrule 0,25 … 1,5 mm²
Strip length 5 … 6 mm / 0.2 … 0.24 inch
Conductor connection direction to PCB 45 °
Pole No. 1
Total number of connection points 1
Total number of potentials 1
Number of connection types 1
Number of levels 1
Note (conductor cross-section) 12 AWG: THHN, THWN
Geometrical Data
Pin spacing 5/5,08 mm / 0.197/0.2 inch
Width 7,8 mm / 0.307 inch
Height 22,2 mm / 0.874 inch
Height from the surface 18,2 mm / 0.717 inch
Depth 17,6 mm / 0.693 inch
Solder pin length 4 mm
Solder pin dimensions 0,7 x 0,7 mm
Drilled hole diameter with tolerance 1,1 (+0,1) mm
PCB contact
PCB contact THT
Solder pin arrangement within the terminal block (in-line)
Number of solder pins per potential 2
Material Data
Color light gray
Material group I
Insulation material Polyamide 66 (PA 66)
Flammability class per UL94 V0
Clamping spring material Chrome nickel spring steel (CrNi)
Contact material Electrolytic copper (ECu)
Contact plating tin-plated
Fire load 0.014 MJ
Weight 0.9 g
Environmental Requirements
Limit temperature range -60 … +105 °C
Commercial data
Product Group 4 (Printed Circuit)
Packaging type BOX
Country of origin CH
GTIN 4044918758796
Customs tariff number 85369010000
Approvals / Certificates
Ex-Approvals
Approval
Additional Approval Text
Certificate name
Language
Approval: AEx
UL International Germany GmbH c/o Physikalisch Technische Bundesanstalt
Additional Approval Text UL 60079
Certificate name: E185892 sec.3
Approval: ATEx
Physikalisch Technische Bundesanstalt (PTB)
Additional Approval Text EN 60079
Certificate name: PTB 06 Atex 1061 U (II 2 G Ex eII bzw. I M2 Ex eI)
Approval: IECEx
Physikalisch Technische Bundesanstalt
Additional Approval Text IEC 60079
Certificate name: IECEx PTB 06.0042U
Required accessories
End plate
Item no.: 256-100
End plate; snap-fit type; 1 mm thick; gray
PCB Interconnect > Item no. 256-100
End plate; snap-fit type; 1 mm thick; gray
PU (SPU): 2000 (100) Piece
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2000
Item no.: 256-200
End plate; snap-fit type; 1 mm thick; dark gray
PCB Interconnect > Item no. 256-200
End plate; snap-fit type; 1 mm thick; dark gray
PU (SPU): 2000 (100) Piece
The value you entered was rounded.
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2000
Item no.: 256-300
End plate; snap-fit type; 1 mm thick; light gray
PCB Interconnect > Item no. 256-300
End plate; snap-fit type; 1 mm thick; light gray
PU (SPU): 2000 (100) Piece
The value you entered was rounded.
Not available for order under SPU!
The item is already added and will not be added again. If necessary, please adjust the quantity directly on the article.
Invalid input
2000
Compatible products
Marking accessories
Item no.: 210-332/500-202
Marking strips; as a DIN A4 sheet; MARKED; 1-16 (160x); Height of marker strip: 3 mm; Strip length 182 mm; Horizontal marking; Self-adhesive; white
Marking > Item no. 210-332/500-202
Marking strips; as a DIN A4 sheet; MARKED; 1-16 (160x); Height of marker strip: 3 mm; Strip length 182 mm; Horizontal marking; Self-adhesive; white
PU (SPU): 100 (1) Piece
The value you entered was rounded.
Not available for order under SPU!
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100
Item no.: 210-332/500-204
Marking strips; as a DIN A4 sheet; MARKED; 17-32 (160x); Height of marker strip: 3 mm; Strip length 182 mm; Horizontal marking; Self-adhesive; white
Marking > Item no. 210-332/500-204
Marking strips; as a DIN A4 sheet; MARKED; 17-32 (160x); Height of marker strip: 3 mm; Strip length 182 mm; Horizontal marking; Self-adhesive; white
PU (SPU): 100 (1) Piece
The value you entered was rounded.
Not available for order under SPU!
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Invalid input
100
Item no.: 210-332/500-205
Marking strips; as a DIN A4 sheet; MARKED; 1-32 (80x); Height of marker strip: 3 mm; Strip length 182 mm; Horizontal marking; Self-adhesive; white
Marking > Item no. 210-332/500-205
Marking strips; as a DIN A4 sheet; MARKED; 1-32 (80x); Height of marker strip: 3 mm; Strip length 182 mm; Horizontal marking; Self-adhesive; white
PU (SPU): 100 (1) Piece
The value you entered was rounded.
Not available for order under SPU!
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100
Testing and measuring
Installation Notes
4 Images
Conductor termination

Inserting/removing a conductor – 256 Series.

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1 Image
Installation

Possible conductor arrangement with terminal strips staggered (for 256 Series only).

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1 Image
Marking

Formation of groups using housings of different colors.

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2 Images
Testing

Testing with test probes.

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