Product Model

257-856

In Stock
Last updated: 2025/4/21
wago 257-856

Selling Points

  • 1Push-button actuation: Simplified and convenient operation.
  • 2CAGE CLAMP connection: Secure and reliable connection technology.
  • 3Ex approval: Suitable for hazardous environments with Ex e II and Ex i versions.
  • 4Stackable design: Easy to configure and expand your wiring setup.
  • 5Tool-free operation: No need for specialized tools, making it ideal for in-the-field use.
Product Details
257-856
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
7.5/7.62?mm?/ 0.295/0.3?inches
Width
10.3?mm?/ 0.406?inches
Height
24.2?mm?/ 0.953?inches
Height from the surface
20.2?mm?/ 0.795?inches
Depth
14.2?mm?/ 0.559?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
orange
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
0.027MJ
Weight
1.4g
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)
400?(100)?pcs
Packaging type
box
Country of origin
PL
GTIN
4044918414210
Customs tariff number
8536904000
RoHS Compliance Status
Compliant,No Exemption
Ratings per
IEC/EN 60664-1
Rated voltage (III / 3)
400V
Rated impulse voltage (III / 3)
6kV
Rated voltage (III/2)
630V
Rated surge voltage (III/2)
6kV
Nominal voltage (II/2)
1000V
Rated surge voltage (II/2)
6kV
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
Number of poles
1

Specifications may be subject to change without notice