Product Overview

The ABB 63NHG00B-690​ (ABB material / order code 3ABD0001782) is a low-voltage, high-breaking-capacity NH fuse link belonging to ABB’s comprehensive NH / DIN fuse system, manufactured in Size 00 (NH00) format according to DIN 43620 and IEC 60269-1 / IEC 60269-2-1 standards. Designed for general-purpose circuit protection, the ABB 63NHG00B-690​ carries a gG (formerly gL) utilization category rating, meaning it is intended to protect cables, busbars, and general electrical equipment against both overload currents and short-circuit faults across its full operating range up to 690 V AC (and up to approximately 440 V DC in certain applications). The fuse element is encapsulated within a rectangular ceramic body with high-pressure sand filling for arc quenching, and is terminated with silver-plated knife-blade contacts for insertion into a standard NH00 fuse base, switch-disconnector, or fuse rail.A defining feature of the ABB 63NHG00B-690​ is its integrated dual blown-fuse indicator system—a spring-loaded mechanical striker pin (top-center) that pops outward when the element melts, combined with a colored discoloration window visible from the front or side, ensuring clear fault identification whether the fuse is installed in an open fuse base, a closed fuse switch-disconnector, or a vertical/horizontal fuse rail. The fuse is also fitted with insulated live metal gripping lugs (IMGL) for safe extraction using a standard NH fuse puller. With a rated breaking capacity of 120 kA, the ABB 63NHG00B-690​ safely interrupts even the highest prospective short-circuit currents encountered in industrial LV distribution, motor control centers (MCCs), drive incomer feeders, and auxiliary power panels. It is a direct-fit replacement for any NH00 base or ABB OETL / OT series fuse switch-disconnector and is widely stocked as a critical spare part in plants utilizing ABB low-voltage apparatus.

Technical Specifications

Product Model | 63NHG00B-690 (Material No. / Order Code: 3ABD0001782)Manufacturer | ABB (ABB Electrification — Low Voltage Products)Product Type | Low Voltage NH Fuse Link (HRC Fuse Insert), Size NH00Rated Current | 63 ARated Voltage (AC) | 690 V AC (IEC), max. 500 V AC some base ratings apply; also suitable for 440 V DC (per IEC 60269-2 Appendix)Utilization Category | gG (IEC 60269-2-1) — formerly gL; full-range general protection for cables & equipmentRated Breaking Capacity | 120 kA (AC 500–690 V)Construction Size | NH00 (DIN 43620), approx. 78 × 58 × 30 mm (L × H × W)Body Material | High-grade ceramic with quartz sand arc-quenching fillerContact Type | Silver-plated knife-blade contacts (NH00 standard)Indicator Type | Dual indicator — mechanical striker pin (top centre) + visual color-change window (side/front)Gripping Lug | Insulated Metal Gripping Lug (IMGL) — live voltage-free handle for safe insertion/removalPower Dissipation (Typical) | ≈ 5.6 W @ rated current (63 A)Pre-arcing I²t (Typical) | Consult ABB time-current curve for 63A NH00 gG @ 690V (~40,000 A²s order of magnitude)Ambient Operating Temp. | -25 °C to +55 °C (in cabinet environment)Standards / Approvals | IEC 60269-1, IEC 60269-2-1, DIN VDE 0636-2, CE, RoHS CompliantCompatible Bases / Switches | ABB OETL00, SH00, OH00 fuse bases; ABB OT160… series fuse switch-disconnectors; any DIN NH00 baseSpare / Solid Link | SDL-2 (solid copper bypass link for NH00) available separately

Main Features and Advantages

High Breaking Capacity for System Integrity:The ABB 63NHG00B-690​ is tested and rated to interrupt short-circuit currents up to 120 kA at 690 V AC, which exceeds the prospective fault level of most industrial low-voltage networks. This ensures that even under a bolted short-circuit condition the fuse will clear safely without explosion or external arcing, protecting upstream equipment and personnel. The ceramic body and graded sand filler absorb and quench the arc energy within milliseconds of element melt.Dual Blown-Fuse Indication for Fast Fault Location:Equipped with both a mechanical striker pin (which protrudes ≈ 3–5 mm when the fuse opens) and a colored indicator window that changes from clear/white to red/orange, the ABB 63NHG00B-690​ provides unambiguous visual confirmation of fuse operation. This dual-indicator design works equally well in open fuse bases (where the striker is visible from above) and in enclosed fuse switch-disconnectors (where the side window may be viewed through inspection openings or the striker actuates an auxiliary microswitch for remote alarm).Full-Range gG Protection Characteristic:Classified as gG (IEC 60269-2-1), the ABB 63NHG00B-690​ offers “full-range” protection—meaning it will open on small sustained overloads (just above the 63 A rating, per the time-current curve) as well as massive short circuits. This makes it the correct choice for protecting downstream cables against both slow thermal damage (overload) and catastrophic fault currents, and it is generally the default fuse class specified for general distribution and motor feeder circuits unless aM (motor protection) or aR (semiconductor) characteristics are explicitly required.Safe Handling with Insulated Metal Gripping Lug:The ABB 63NHG00B-690​ includes an Insulated Metal Gripping Lug (IMGL) — a voltage-free, touch-safe handle that allows technicians to insert or extract the hot fuse from its base using a standard NH fuse puller without contacting live knife-blade terminals. This ergonomic and safety feature is particularly important in MCC and drive cabinets where multiple fuses may be mounted side-by-side in a live panel.Broad Compatibility Across NH00 Infrastructure:Because it conforms to DIN 43620 dimensional and knife-contact standards, the ABB 63NHG00B-690​ is interchangeable with any reputable manufacturer’s NH00 base or fuse switch-disconnector. It is commonly paired with ABB OETL00-BH / SH00 fuse bases, ABB OT160GS / OT250E03 switch-disconnectors with NH00 adaptors, and Siemens / Eaton / Wöhner NH00 bases—making it a universal spare in mixed-vendor panel populations.Proven Long Service Life and Stability:The silver-alloy fuse elements of the ABB 63NHG00B-690​ are aged and calibrated during production to ensure stable fusing characteristics over decades of service. The ceramic envelope resists thermal shock and mechanical impact better than phenolic or thermoplastic bodies, and the element’s pre-arcing I²t is tightly controlled to coordinate with upstream / downstream protective devices when performing selective grading studies.

Application Field

The ABB 63NHG00B-690​ is most frequently applied as the primary or branch-circuit protective device in low-voltage AC distribution boards, motor control centers (MCC buckets), drive incomer feeders, and auxiliary power panels within process plants, manufacturing facilities, commercial buildings, and utility substations. In a typical MCC, a 63 A feeder to a 30–37 kW (40–50 HP) AC induction motor would be protected by a ABB 63NHG00B-690​ installed in an NH00 fuse base or fuse switch-disconnector, sized per IEC 60364 cable protection rules (typically 1.25–1.6 × motor FLC for starting-current tolerance). The gG characteristic provides both overload discrimination with upstream main incomer MCCBs/fuses and short-circuit limitation that reduces stress on downstream contactors and wiring.In ABB drive cabinets (ACS510, ACS550, ACS800/880 series), the ABB 63NHG00B-690​ is often specified on the AC input (line) side of the drive module when the design calls for NH fuse protection rather than a molded-case circuit breaker. For DC-side or regenerative drive protection, users would select an aR (semiconductor) fuse of appropriate rating instead—but for standard AC supply the gG ABB 63NHG00B-690​ is the norm. Renewable-energy balance-of-system (BoS) combiner boxes and UPS input stages also use the ABB 63NHG00B-690​ where 690 V AC mains or 440 V DC battery strings fall within its rating envelope. Because the fuse is a consumable protection element, it is universally stocked in plant MRO stores alongside a small quantity of SDL-2 solid links (for temporary bypass during fuse replacement in non-critical circuits) and a spare OETL / SH00 base if the installation uses enclosed switch-disconnectors.

Related Products

• 3ABD0001782​ — This is the ABB order / material number for the ABB 63NHG00B-690​ fuse link itself; listed here to clarify catalog cross-reference.
• OETL00-BH​ / SH00​ — ABB NH00 open fuse base and enclosed fuse switch-disconnector base into which the ABB 63NHG00B-690​ is inserted; typically 160 A rated base for NH00 fuses.
• OT160GS​ / OT250E03​ — ABB OT series switch-disconnector that can accept NH00 adaptor kits (OT-CNH00) for use with the ABB 63NHG00B-690.
• 50NHG00B-690​ / 80NHG00B-690​ / 100NHG00B-690​ — Other current ratings in the same NH00 gG fuse family (50 A, 80 A, 100 A) sharing identical physical dimensions—often stocked together with the ABB 63NHG00B-690.
• 63NHG0B-500​ — Same 63 A gG fuse but rated 500 V AC (NH0 / Size 0), physically larger—do NOT confuse with NH00 ABB 63NHG00B-690.
• SDL-2​ — Solid copper bypass link (NH00 size) used to temporarily close a fused circuit during fuse replacement; compatible with bases that hold the ABB 63NHG00B-690.
• SD00-SK​ — IP20 finger-safe shroud kit for NH00 fuse bases; often installed with the ABB 63NHG00B-690​ in open-base applications.
• FEH- Fuse Extraction Handle (NH00)​ — Insulated fuse puller sized for NH00; required for safe insertion/removal of the ABB 63NHG00B-690​ from live bases.
• 63NA00B-690​ — aM (motor protection) characteristic NH00 fuse, 63 A; alternative to the gG ABB 63NHG00B-690​ when motor-specific coordination (with contactor) is required and cable protection is handled separately.
• 3NE1222-0​ — Siemens 63 A NH00 gG fuse link (cross-reference); functionally equivalent to the ABB 63NHG00B-690​ for interchangeability purposes.

 

Installation and Maintenance

Pre-installation preparation: Before installing the ABB 63NHG00B-690, verify that the circuit is de-energized and locked out. Confirm the NH00 fuse base or switch-disconnector is rated for at least 63 A and 690 V AC and that the base contacts are clean and free of pitting. Select the correct rating—ABB 63NHG00B-690​ (gG 63A 690V)—matching the protected circuit’s calculated ampacity per IEC 60364 or local code. Using an NH00 fuse puller (FEH-type), align the knife-blade contacts of the ABB 63NHG00B-690​ with the base slots and press firmly until the spring-loaded contacts seat fully and the gripping lug clicks into the base’s top catch. Close the fuse base cover or switch-disconnector door. Restore power and verify normal operation; the striker pin should remain flush (not popped) and the indicator window should show the normal (clear/white) state.Maintenance recommendations: The ABB 63NHG00B-690​ is a one-time protective element with no reset function. If the striker pin has popped or the indicator window shows blown condition, the fuse must be replaced—never bypass with a solid link except as a temporary emergency measure with the circuit de-rated and tagged. Periodically (during annual IR scans or visual checks) confirm that the ABB 63NHG00B-690​ is not showing signs of overheating (discoloration of the ceramic near contacts, loose base screws). Check that base terminal screws are torqued to the manufacturer’s specification, as loose connections can cause contact heating that prematurely ages the fuse element. Keep spare ABB 63NHG00B-690​ fuses in anti-static/original packaging in a dry storeroom. When replacing, always use the same or correctly coordinated rating—never upsize the ABB 63NHG00B-690​ to avoid overloading the downstream conductors. Dispose of expended fuses according to local electronic-waste regulations; the ceramic body and metal parts are recyclable.