SM812 ABB Safety Module | SIL3 Supervision 3BSE072270R1 for PM867

🔌 Product highlights

The ABB SM812 (article 3BSE072270R1) is a safety supervision module for PM857/PM863/PM867 controllers. It enables SIL1-2 supervision and combines with PM867 for SIL3 1oo2 diverse architecture. Supports redundancy, hot swap, and has dedicated sync link. Ideal for high-integrity applications.

Need expert help? sales@powergearx.com or WhatsApp +86 18030005825.

🧩 Model identity – SM812

• ABB SM812 – Safety Supervision Module · article 3BSE072270R1
• ⤷ SIL1-2 supervision · SIL3 with PM867 (1oo2 diverse)
• ⤷ Redundancy capable · hot swap supported
• ⤷ Dedicated sync link for redundant pair
• ⤷ 3 digital inputs + 2 digital outputs (safety-related)
• ⤷ Overvoltage & internal voltage monitoring

⚙️ Core technical data

• Processor & memory
  ➜ MPC866 @ 133 MHz · 64 MB RAM
  ➜ 4 MB Flash PROM for firmware · no storage Flash
• Power & performance
  ➜ 24 V DC (19.2–30 V) · typ 160 mA / max 250 mA
  ➜ Power dissipation 3.8 W · switchover time ≤10 ms
• Temperature range
  ➜ Operating +5°C to +55°C · storage -40°C to +70°C
  ➜ 3°C/min temp change per IEC 61131-2
• Protection & environment
  ➜ IP20 · pollution degree 2 · corrosion class G3
  ➜ Humidity 5–95% non‑condensing · altitude 2000 m
• Dimensions & weight
  ➜ Width 59 mm · Height 186 mm · Depth 127.5 mm
  ➜ Weight 0.7 kg (1.5 lb) including base

🔌 Onboard I/O

• Digital inputs
  3 channels · safety-related (not process I/O)
• Digital outputs
  2 channels · safety-related (not process I/O)

✅ Certifications at a glance

• Safety & hazardous
  TÜV approved · UL 61010-1 · CSA · cULus Class 1 Zone 2 · Ex nA IIC T4
• Marine
  ABS, BV, DNV-GL · LR pending
• Environment
  IP20 · CE · RoHS · WEEE · EN 61000-6-2/4

📦 Delivery & warranty

• Warranty
  12 months against defects · full parts & labor
• Shipping
  FedEx, UPS, DHL · fast global delivery · tracking included
• In the box
  1x SM812 module · mounting base · quick start guide

🏭 Typical applications

• Industries
  Oil & gas · chemical · power generation · nuclear · marine
• Best use
  SIL3 safety applications with PM867 · high-availability redundant setups · safety controller supervision

❓ Professional FAQ (real‑world advice)

• Q: What controllers work with SM812?
  A: SM812 works with PM857, PM863, and PM867. For SIL3 applications, pair with PM867 to form a 1oo2 diverse architecture. For SIL1-2, it supervises any of these controllers.
• Q: Can I use two SM812 modules redundantly?
  A: Yes, SM812 supports redundancy. Use the dedicated synchronization link to connect the pair. This enables hot swap and online upgrade with data copy between modules.
• Q: What are the onboard I/O used for?
  A: The 3 DI and 2 DO are for safety-related functions like interlocking, status monitoring, or reset. They are not for process I/O. Use separate S800 I/O for field signals.
• Q: Is SM812 approved for SIL3 applications?
  A: SM812 alone provides SIL1-2 supervision. For SIL3, it must be combined with PM867 in a 1oo2 diverse configuration. The pair is TÜV approved for SIL3.
• Q: What is the switchover time in redundant mode?
  A: Maximum switchover time is 10 ms. This ensures bumpless transfer if the active SM812 fails. The sync link keeps both modules updated.

Copyright © 2026 Powergear X Automation Limited. All rights reserved.
Original Source: https://www.powergearx.com/