Wago
281-992
2-conductor through terminal block; 4 mm²; suitable for Ex e II applications; center marking; for DIN-rail 35 x 15 and 35 x 7.5; CAGE CLAMP®; 4,00 mm²; light gray
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Product Conditions:
Ratings Per Iec/En
- Ratings per
- IEC/EN 60947-7-1
Environmental Requirements
- Processing temperature
- -35 … +85 °C
- Continuous operating temperature
- -60 … +105 °C
Physical Data
- Width
- 6 mm / 0.236 inches
- Height
- 59 mm / 2.323 inches
- Depth from upper-edge of DIN-rail
- 29 mm / 1.142 inches
Material Data
- Note (material data)
- <a href="https://www.wago.com/us/material-specifications" href="_blank">Information on material specifications can be found here</a>
- Color
- Light gray
- Material group
- I
- Insulation material
- Polyamide (PA66)
- Flammability class per UL94
- V0
- Fire load
- 0.141 MJ
- Weight
- 7.804 g
Mechanical Data
- Design
- Horizontal type
- Mounting type
- DIN-35 rail
- Marking level
- Center marking
Specifications
- Product Group Code
- 0001
Commercial Data
- Packaging type
- Box
- Country of origin
- DE
- GTIN
- 4044918485180
- Customs tariff number
- 85369010000
Ex Information
- Reference hazardous areas
- See application instructions in section “Knowledge and Downloads – Documentation – Additional Information: Technical Section; Technical Explications”
- Rated voltage EN (Ex e II)
- 550 V
- Note (rated voltage)
- Using staggered jumpers reduces the maximum rated voltage to 275 V.
- Rated current (Ex e II)
- 30 A
Power Loss
- Power loss, per pole (potential)
- 0.9 W
- Rated current IN for specified power loss
- 30 A
- Resistance value for specified, current-dependent power loss
- 0.001 Ω
Connection 1
- Connection technology
- CAGE CLAMP®
- Actuation type
- Operating tool
- Connectable conductor materials
- Copper || Aluminum
- Connectable conductor materials (note)
- Terminating Aluminum ConductorsWAGO spring clamp terminal blocks are suitable for solid aluminum conductors up to 4 mm²/12 AWG if WAGO “Alu-Plus” Contact Paste <a href="https://www.wago.com/249-130">249-130</a> is used for termination.“Alu-Plus” Contact Paste Advantages:Automatically destroys the oxide film during clamping.Prevents fresh oxidation at the clamping point.Prevents electrolytic corrosion between aluminum and copper conductors (in the same terminal block).Provides long-term protection against corrosion.Using terminal blocks with CAGE CLAMP® Spring Pressure Connection Technology, aluminum conductors must first be cleaned with a blade and then immediately be inserted into the clamping units filled with “Alu-Plus” Contact Paste.It is also possible to apply WAGO “Alu-Plus” additionally on the whole surface of the aluminum conductor before termination.Please note that the nominal currents must be adapted to the reduced conductivity of the aluminum conductors::2.5 mm² = 16 A4 mm² = 22 A
- Solid conductor
- 0.08 … 4 mm² / 28 … 12 AWG
- Fine-stranded conductor
- 0.08 … 4 mm² / 28 … 12 AWG
- Strip length
- 9 … 10 mm / 0.35 … 0.39 inches
- Wiring direction
- Front-entry wiring