TU831V1 ABB Extended MTU 250V 3A Terminal Block I/O Module

ABB TU831V1 Extended MTU – 8-Channel I/O Terminal Block

Technical Specifications

• Brand: ABB
• Model: TU831V1 (Extended MTU)
• Channels: 8 (2 terminals per channel, total 16 process connections)
• Rated Voltage: 250 V
• Max Current per Channel: 3 A
• Dielectric Test Voltage: 2000 V a.c.
• Wire Sizes: Solid 0.2–6 mm² / Stranded 0.2–4 mm² (24–10 AWG)
• Recommended Torque: 0.5–0.6 Nm; Stripping length: 7 mm
• Operating Temperature: 0 to +55 °C (+32 to +131 °F) – approvals at +5 to +55 °C
• Storage Temperature: -40 to +70 °C (-40 to +158 °F)
• Protection Class: IP20 (IEC 60529)
• Pollution Degree: 2 (IEC 60664-1)
• Corrosion Protection: ISA-S71.04 G3
• Relative Humidity: 5–95 % non-condensing
• Dimensions (W x D x H): 126 x 64 x 110 mm (including connectors)
• Weight: 0.22 kg (0.48 lbs)
• Mounting: DIN rail, both directions, with mechanical latch
• Certifications: CE, UL 61010-1, EN 61010-1, marine (ABS, BV, DNV-GL, LR), RoHS, WEEE

Frequently Asked Questions (FAQ)

• Q: Is the TU831V1 compatible with redundant I/O configurations?
  A: No, this extended MTU supports single I/O only.
• Q: What is the maximum ambient temperature for operation?
  A: The TU831V1 operates reliably up to +55 °C (+131 °F).
• Q: Can I use this MTU with other ABB I/O modules besides DI820/DO820?
  A: Mechanical keying limits it to DI820, DI821, DO820, and DO821 – other modules will not fit.
• Q: What wire gauge does the terminal block accept?
  A: It accepts solid wire 0.2–6 mm² and stranded wire 0.2–4 mm² (24–10 AWG).
• Q: Is the TU831V1 suitable for marine environments?
  A: Yes, it holds marine certifications from ABS, BV, DNV-GL, and LR.
• Q: Do you offer a return policy?
  A: Yes, we accept returns within 30 days of delivery.
• Q: How do I ground the MTU?
  A: The latching device on the DIN rail provides automatic grounding when properly mounted.

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