Email: sales@runshengdcs.com
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Phone：+86 15383419322Description
The ABB 216GD61A (HESG324436R3 A / HESG324428) is a high-reliability digital output module engineered for critical control applications within ABB’s Advant Controller 400 platform. Designed for SIL 2 safety systems, this 32-channel module features robust electromechanical relays capable of switching 5A resistive loads at 230VAC with 100,000+ mechanical operations. The HESG324436R3 A revision adds reinforced isolation (4,000 VAC) and arc-fault suppression for explosive environments, while HESG324428 offers enhanced diagnostics with per-channel contact wear monitoring. Both variants operate at -40°C to +85°C with 98% humidity tolerance, providing failsafe control of motors, valves, and solenoids in power generation, oil & gas, and marine applications. With integrated surge protection (IEC 61000-4-5 Level 4) and hot-swap capability, this module ensures uninterrupted operation in mission-critical safety chains.
216GD61A HESG324436R3 A HESG324428 ABB
Technical Specifications
| Parameter Name | Parameter Value |
| Product Model | 216GD61A (HESG324436R3 A / HESG324428) |
| Manufacturer | ABB |
| Product Type | Digital Output Module |
| Output Channels | 32 (Form A relays) |
| Contact Rating | 5A @ 230VAC / 2A @ 30VDC |
| Switching Capacity | 1500 VA (resistive) |
| Isolation | 4000 VAC (HESG324436R3 A) / 2500 VAC (HESG324428) |
| Response Time | <8 ms |
| Safety Certification | SIL 2 (IEC 61508), ATEX Cat 3 |
| Diagnostic Coverage | >90% (HESG324428: per-channel contact resistance monitoring) |
| Operating Temperature | -40°C to +85°C |
| Mechanical Life | 10 million operations |
| Electrical Life | 100,000 operations @ rated load |
| Power Consumption | 3.5W @ 24VDC |
| Connection | Dual-fork clamp terminals |
| Surge Protection | 4kV (Line-to-Earth) |
| Fault Reporting | Group and per-channel (HESG324428) |
Main Features and Advantages
Explosion-Safe Switching (HESG324436R3 A): Arc containment chambers and magnetic blow-out contacts suppress arcing in Zone 2 hazardous areas, meeting IEC 60079-15 non-incendive requirements.
Predictive Maintenance (HESG324428): Real-time contact resistance measurement detects pitting/erosion before failure. Integrated cycle counter logs operations per channel.
Extreme Environment Resilience: Sealed relay compartments withstand IP65 ingress protection. Salt fog corrosion resistance per ISO 9227 for offshore deployments.
Advanced Safety Architecture: Dual-watchdog timers and output feedback verification ensure SIL 2 compliance for emergency shutdown systems.
Rapid Field Replacement: Tool-less extraction and supercapacitor-backed configuration memory enable <5-minute hot-swaps during critical operations.
Application Field
The ABB 216GD61A secures high-impact control functions:
Power Plants: Turbine lube oil pump control during coast-down
FPSO Vessels: Ballast valve operation in Class I Div 2 zones
Hydrocarbon Processing: Emergency vent solenoid activation
Water Management: Floodgate motor control with SIL 2 integrity
Mining: Conveyor brake release circuits in dust-laden environments
The HESG324436R3 A variant excels in LNG liquefaction plants where arc suppression prevents ignition risks. HESG324428 dominates pharmaceutical batch processes requiring predictive contact maintenance.
216GD61A HESG324436R3 A HESG324428 ABB
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