WAGO 285-157 Power Clamp Terminal Block, 2-Conductor, 1000 V, 125 A, DIN-Rail 35, Grey

Industrial electricians and panel builders rely on the WAGO 285-157 Power Clamp terminal block for high-current power distribution in control cabinets and machine wiring. This front-entry, DIN-rail mountable block accepts conductors from 10 mm² to 50 mm² (8 AWG to 1/0 AWG), making it ideal for connecting large power feeds to distribution points. The CAGE CLAMP® connection technology provides a maintenance-free, vibration-proof, and gas-tight connection that eliminates the need for periodic re-tightening, ensuring long-term reliability in demanding environments.

Key specifications

• Connection technology: CAGE CLAMP®
• Number of connection points: 2
• Number of potentials: 1
• Nominal voltage (EN): 1000 V
• Nominal current (EN): 125 A
• Rated impulse voltage: 8 kV
• Pollution degree: 3
• Overvoltage category: III
• Conductor size range: 10 mm² to 50 mm² (8 AWG to 1/0 AWG)
• Wiring type: Front-entry
• Mounting type: DIN-rail 35
• Color: Grey
• Insulating material: Polyamide (PA 66)
• Flammability class (UL94): V0
• Operating temperature: -35 to +85 °C
• Stripping length: 28 to 30 mm (1.1 to 1.18 inch)
• Connection type: Power Clamp
• Approvals: EN 60947-7-1
• Type of wiring: 1-conductor

Why choose it

The WAGO 285-157 ensures safe and efficient high-current connections with its robust design and tool-free CAGE CLAMP® technology. The grey polyamide housing offers excellent insulation and flame retardancy (UL94 V0), while the wide operating temperature range makes it suitable for both indoor and outdoor applications. Its compact footprint saves space on the DIN rail without compromising performance.

Ideal use cases

• Power distribution in industrial control panels
• Connecting large conductors in machine building
• HVAC and building automation systems
• Renewable energy installations (solar, wind)
• Railway and transportation equipment

Good to know

The terminal block is approved according to EN 60947-7-1, ensuring compliance with international safety standards. It is designed for 1-conductor wiring and requires a stripping length of 28–30 mm. For optimal performance, use with WAGO's recommended tools and accessories.