Product Model

255-742

In Stock
Last updated: 2025/4/18
wago 255-742

Selling Points

  • 1Push-button actuation for easy connection and disconnection.
  • 2CAGE CLAMP technology ensures secure and reliable connections.
  • 3CSA and UL 1059 approvals for safety in industrial applications.
  • 4Dark gray color with 2.5 mm² contact capacity.
  • 5Stackable design for flexible and efficient PCB terminal block management.
Product Details
255-742
wago

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

ParameterValueParameterValue
Variants:
Other colors
Clamping units
1
Total number of potentials
1
Number of connection types
1
Number of levels
1
Pin spacing
5/5.08?mm?/ 0.197/0.2?inches
Width
7.8?mm?/ 0.307?inches
Height
18.2?mm?/ 0.717?inches
Height from the surface
14.2?mm?/ 0.559?inches
Depth
18.3?mm?/ 0.72?inches
Solder pin length
4mm
Solder pin dimensions
0.7 x 0.7?mm
Drilled hole diameter with tolerance
1.1(+0.1)mm
PCB contact
THT
Solder pin arrangement
within the terminal block (in-line)
Number of solder pins per potential
2
Note (material data)
Information on material specifications can be found here
Color
dark gray
Material group
I
Insulation material (main housing)
Polyamide (PA66)
Flammability class per UL94
V0
Clamping spring material
Chrome-nickel spring steel (CrNi)
Contact material
Electrolytic copper (ECu)
Contact plating
Tin
Fire load
0.022MJ
Weight
1.2g
Limit temperature range
-60 … +105?°C
Product Group
4 (Printed Circuit Connectors)
eCl@ss 10.0
27-44-04-01
eCl@ss 9.0
27-44-04-01
ETIM 9.0
EC002643
ETIM 8.0
EC002643
ECCN
NO US CLASSIFICATION
PU (SPU)
500?(100)?pcs
Packaging type
box
Country of origin
CH
GTIN
4044918662864
Customs tariff number
8536904000
RoHS Compliance Status
Compliant,No Exemption
Ratings per
IEC/EN 60664-1
Rated voltage (III / 3)
320V
Rated impulse voltage (III / 3)
4kV
Rated voltage (III/2)
320V
Rated surge voltage (III/2)
4kV
Nominal voltage (II/2)
630V
Rated surge voltage (II/2)
4kV
Rated current
24A
Legend (ratings)
(III / 2) ? Overvoltage category III / Pollution degree 2
Approvals per
CSA
Rated voltage UL (Use Group B)
300V
Rated current UL (Use Group B)
15A
Rated voltage UL (Use Group D)
300V
Rated current UL (Use Group D)
10A
Rated voltage CSA (Use Group B)
300V
Rated current CSA (Use Group B)
15A
Rated voltage CSA (Use Group D)
300V
Rated current CSA (Use Group D)
10A
Connection technology
CAGE CLAMP?
Actuation type
Push-button (angled)
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
Note (conductor cross-section)
12 AWG: THHN, THWN
Strip length
5 … 6?mm?/ 0.2 … 0.24?inches
Conductor connection direction to PCB
90°
Number of poles
1

Specifications may be subject to change without notice