Product Model
257-553
Selling Points
- 1Ideal for in-the-field wiring thanks to simplified push-button actuation.
- 2Secure and reliable connection technology for solid and fine-stranded conductors.
- 3Versions with Ex approval for use in hazardous environments.
- 4Convenient, tool-free operation for easy conductor insertion and removal.
- 5Constructed with high-quality materials, including chrome-nickel spring steel and electrolytic copper contacts.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
| Parameter | Value | Parameter | Value |
|---|---|---|---|
Variants: | Other pole numbers | Clamping units | 3 |
Total number of potentials | 3 | Number of connection types | 1 |
Number of levels | 1 | Pin spacing | 7.5/7.62?mm?/ 0.295/0.3?inches |
Width | 25.4?mm?/ 1?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 | over the entire terminal strip (in-line) | Number of solder pins per potential | 2 |
Note (material data) | Information on material specifications can be found here | Color | 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 | 0.089MJ | Weight | 4.3g |
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) | 200?(50)?pcs |
Packaging type | box | Country of origin | PL |
GTIN | 4044918677011 | 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 | 0° |
Number of poles | 3 |
Specifications may be subject to change without notice