Product Description

​The Phoenix Contact STTB 25 - OF 50 is a double-level spring-cage terminal block designed for efficient electrical connections in industrial applications. It features two levels with two connections per level, accommodating conductors ranging from 0.08 mm² to 4 mm² (AWG 28 to 12) for rigid wires and 0.08 mm² to 2.5 mm² (AWG 28 to 14) for flexible wires. The terminal block is rated for a nominal current of 22 A and a nominal voltage of 500 V, ensuring reliable performance in demanding environments. Its compact design, with a width of 5.2 mm, allows for efficient use of space in control cabinets and distribution boards. ​

Technical Specifications

• Product Type: Double-Level Spring-Cage Terminal Block​
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• Number of Connections: 4 (2 per level)​
• RSP Supply
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• Connection Method: Spring-Cage Connection​
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• Nominal Cross-Section: 2.5 mm²​
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• Conductor Cross-Section Range:
• Rigid: 0.08 mm² to 4 mm² (AWG 28 to 12)​
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• Flexible: 0.08 mm² to 2.5 mm² (AWG 28 to 14)​
• Nominal Current: 22 A​
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• Nominal Voltage: 500 V​
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• Stripping Length: 8 mm to 10 mm​
• Width: 5.2 mm​
• RSP Supply
• +1
• Phoenix Contact
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• Mounting Type: Suitable for NS 35/7.5 and NS 35/15 DIN rails​
• Color: Gray​
• Approvals: IEC 60947-7-1