Product Model

257-866

In Stock
Last updated: 2025/4/19
wago 257-866

Selling Points

  • 1Automatic clamping ensures secure connections regardless of installer skill level.
  • 2Universal compatibility with copper conductors from AWG 26 to AWG 2.
  • 3Reduces wiring time by up to 75% compared to manual screw-type terminals.
  • 4No special tools required; standard straight-bladed screwdriver operation.
  • 5Patented stainless steel clamping mechanism for solid or stranded wires.
Product Details
257-866
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
10/10.16?mm?/ 0.394/0.4?inches
Width
12.8?mm?/ 0.504?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
0.035MJ
Weight
1.6g
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)
300?(100)?pcs
Packaging type
box
Country of origin
PL
GTIN
4044918414319
Customs tariff number
8536904000
RoHS Compliance Status
Compliant,No Exemption
Ratings per
IEC/EN 60664-1
Rated voltage (III / 3)
630V
Rated impulse voltage (III / 3)
8kV
Rated voltage (III/2)
1000V
Rated surge voltage (III/2)
8kV
Nominal voltage (II/2)
1000V
Rated surge voltage (II/2)
8kV
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