Safety Relays & Controllers


Product Code: MCB-20

The MCB-20 Contact Block is: With 3-position holder - Non-illuminated - Double contact block - Front mounting - silver (Ag) - 2NO - 690V. This Contact Block is part of ABB's modular plastic range, the most versatile range with a high level of flexibility and market-leading electrical ratings. Engineered for total reliability, longer lifetime, and highest mechanical durability. Self-cleaning contacts ensure reliable operation without the need for maintenance, increasing uptime. A high degree of protection guarantees reliability in extreme environments. The innovative design simplifies the entire process, from selection to easy and quick, tool-free installation. The perfect solution for every application.

Technical Specifications

Connecting Capacity Flexible with Ferrule 1/2 x 0.75 - 2.5mm² Flexible with Insulated Ferrule 1/2 x 0.75 - 2.5mm² Flexible 1/2 x 0.75 - 2.5mm² Solid 1/2 x 0.75 - 2.5mm²
Rated Operational Current DC-13 125V (A) 0.55
Brand ABB
Accessory Type Contact Block
Ambient Temperature Range (°C) -25 to 70
Connection Type Screw Clamp
Degree of Protection Terminals: IP20
Dimensions (mm) 20W x 44H x 28D
Illumination Non-illuminated
Mounting Type Front Mount
No. of Normally-open Contacts 2
Pollution Degree 3
Power Loss (W) 5
Rated Frequency (Hz) 50/60
Rated Impulse Withstand Voltage (kV) 6
Rated Insulation Voltage (V) 690
Rated Operational Current AC-15 230V (A) 6
Rated Operational Current DC-13 24V (A) 5
Rated Operational Voltage (V) 690 (Maximum)
Rated Operational Voltage AC/DC (V) 690
Storage Temperature Range (°C) -40 to 85
Suitable For Pilot Devices
Terminal Type Screw
Tightening Torque (Nm) 0.9
Weight (kg) 0.04
Wire Stripping Length (mm) 8


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