Description
ABB 216NG62A HESG216876
ABB 216NG62A (with mating fuse module HESG216876) is an industrial‑grade 16‑channel relay digital output module, belonging to the ABB Advant Controller 31/REG216 protection system series. It provides safe, isolated, protected digital outputs for industrial control systems, suitable for heavy industry applications such as power, metallurgy, and chemical engineering.
I. Product Positioning
ABB 216NG62A (order code reference: HESG441634R1/K, with mating fuse module HESG216876) is an industrial‑grade 16‑channel relay digital output (DO) module. It is mainly used for switching actuation in control loops within industrial control systems (e.g., driving contactors, indicator lamps, valves, alarm circuits).
The module features fully isolated relay outputs plus individual plug‑in fuses, strictly complying with industrial safety and EMC standards. It is compatible with ABB DCS, PLC and REG216 relay protection systems, providing highly reliable, strongly isolated, protected on/off control for field actuators and ensuring safe system operation.
II. Technical Parameters
| Item | Specification |
|---|---|
| Type | 216NG62A |
| Order No. / Material Code | HESG441634R1/K; mating fuse module: HESG216876 |
| Module Type | 16‑channel relay digital output module (DO) |
| Output Channels | 16 channels, normally open (NO) relay contacts |
| Contact Rating | Per channel: 2A @ 30V DC / 250V AC (resistive load) |
| Electrical Isolation | Full galvanic isolation between channels, groups, and channel‑to‑logic side; isolation voltage ≥ 2 kV |
| Response Time | Turn‑on ≤ 10 ms, Turn‑off ≤ 12 ms (typical) |
| Fuse Configuration | Individual plug‑in fuse per channel (with HESG216876 module); faulty channel can be replaced independently |
| Supply Voltage | 24V DC (industrial standard) |
| Operating Temperature | -20℃ ~ +70℃ |
| Storage Temperature | -40℃ ~ +70℃ |
| Protection Degree | IP20 (for mounting in control cabinets) |
| Dimensions (approx.) | 189 × 156 × 48 mm |
| Weight (approx.) | 2.35 kg (including fuse module) |
| Key Features | Full isolation, individual fuses, fast response, high load capacity, industrial‑grade noise immunity |

III. Core Functions
1. 16 isolated relay outputs
Provides 16 independent normally open relay contacts, each supporting up to 2A/250VAC or 30VDC load. It can directly drive contactors, solenoid valves, indicator lamps, alarm circuits and other actuating devices without additional intermediate relays, simplifying system design.
2. Full galvanic isolation and noise immunity
Full galvanic isolation (≥ 2 kV) between channels and between channels and logic side effectively blocks strong field interference and ground potential differences, protecting the control system and ensuring safe operation in harsh electromagnetic environments.
3. Individual plug‑in fuse protection (HESG216876)
Each channel is equipped with an independent plug‑in fuse (using the HESG216876 module) to achieve single‑channel fault isolation:
- In case of short circuit or overload on one channel, only the corresponding fuse blows without affecting other channels or the module as a whole.
- Fuses can be quickly replaced, greatly reducing fault recovery time and improving system availability.
4. Fast response and precise control
Relay turn‑on ≤ 10 ms and turn‑off ≤ 12 ms meet the requirements of fast switching and sequential control in industrial systems, suitable for motor start/stop, valve actuation, alarm triggering and similar applications.
5. Industrial‑grade reliability and compatibility
- Wide operating temperature range (-20℃ ~ +70℃) for harsh industrial environments
- IP20 protection, suitable for standard control cabinet installation
- Modular design, compatible with ABB Advant Controller 31, REG216 protection systems and mainstream DCS/PLC platforms

IV. Applications
1. Power Industry
- Substations / Power plants: circuit breaker control, disconnector operation, alarm circuits, protection system outputs
- Generator / Transformer protection: used with REG216 systems for fault tripping and signal output
2. Industrial Process Control
- Metallurgy / Chemical / Paper: motor start/stop, valve control, pump/fan drive, equipment interlocking
- Production line automation: equipment status indication, fault alarm, safety loop control
3. Other Industrial Applications
- Water treatment: pump/valve control, water quality over‑limit alarm
- Mining / Cement: heavy equipment drive, safety interlocking, field signal output
V. Product Advantages
- High safety isolation: Full galvanic isolation across all channels blocks strong electrical interference and protects core control hardware.
- Independent channel protection: Fuse failure on one channel does not affect the whole module; fault location and recovery are efficient.
- Strong load capacity: 2A/250VAC contacts directly drive industrial actuators, reducing intermediate components.
- Fast response: Millisecond‑level operating time satisfies high‑speed control and safety interlock demands.
- Industrial‑grade durability: Wide temperature range, high noise immunity, IP20 protection, stable long‑term operation in harsh environments.
- Easy maintenance: Modular design plus plug‑in fuses enable simple installation, replacement and servicing.

