Unwavering in our dedication to customers and delivering cutting-edge innovations,Bepto stands as your steadfast ally on the journey ahead.
IA1CM Overhead Switch Disconnector: 17.5kV 1250A manual air-break LBS, hot-dip galvanized steel, tempered glass insulators, live working, NF C 64-140 Type I, tree network, visible opening.
Advanced IA1CM Overhead Switch Disconnector Series: Premium IACM-12/17.5/24/36kV manually operated overhead switch designed for end-of-line placement in tree-like HVA network structures, isolating substation clusters for downstream line work, compliant with NF C 64-140 Type I standard (01/1990), featuring hot-dip galvanized steel profile frame (NF A 91 121), RP5 tempered glass insulators with bronze bushing articulation, work-hardened copper blade with C-shaped profile for high short-circuit resistance and reduced heating, delivering 200-1250A rated current with 50A active load breaking, 2.5A no-load transformer breaking, 10A no-load line breaking, 12.5kA (1s) short-time withstand, 31.5kA peak withstand, 2000 mechanical cycles, visible opening position.
Live Working and Bird Protection Ready: IA1CM incorporates 25mm diameter cylindrical aluminum pins for live working (LWT), whip-type disconnect devices, tumbler-type spring-loaded snap-closing acting directly on moving shaft, telescopic tubes adjustable 300mm for 11-14m supports, phase-insulating support for bird protection, lockable control lever with insulation, providing reliable manual air-break overhead switching solution for tree network end-of-line substation cluster isolation.
| IA1CM Overhead Switch Disconnector Specifications | 12kV | 17.5kV | 24kV | 36kV | Unit |
|---|---|---|---|---|---|
| Model Number | IA1CM-12 | IA1CM-17.5 | IA1CM-24 | IA1CM-36 | – |
| Alternative Model | IACM-12 | IACM-17.5 | IACM-24 | IACM-36 | – |
| Brand | Bepto Insulation Systems | Bepto Insulation Systems | Bepto Insulation Systems | Bepto Insulation Systems | – |
| Product Type | Manually Operated Overhead Switch Disconnector (Air-Break LBS) | Manually Operated Overhead Switch Disconnector (Air-Break LBS) | Manually Operated Overhead Switch Disconnector (Air-Break LBS) | Manually Operated Overhead Switch Disconnector (Air-Break LBS) | – |
| Application Focus | End-of-Line Tree Network, Substation Cluster Isolation, Downstream Line Work | End-of-Line Tree Network, Substation Cluster Isolation, Downstream Line Work | End-of-Line Tree Network, Substation Cluster Isolation, Downstream Line Work | End-of-Line Tree Network, Substation Cluster Isolation, Downstream Line Work | – |
| Standard Compliance | NF C 64-140 Type I (01/1990), NF A 91 121 | NF C 64-140 Type I (01/1990), NF A 91 121 | NF C 64-140 Type I (01/1990), NF A 91 121 | NF C 64-140 Type I (01/1990), NF A 91 121 | – |
| Rated Voltage | 12 | 17.5 | 24 | 36 | kV |
| Rated Current | 200/400/630/1250 | 200/400/630/1250 | 200/400/630/1250 | 200/400/630/1250 | A |
| Rated Active Load Breaking Current | 50 | 50 | 50 | 50 | A |
| Rated No-Load Transformer Breaking | 2.5 | 2.5 | 2.5 | 2.5 | A |
| Rated No-Load Line Breaking Capacity | 10 | 10 | 10 | 10 | A |
| 1min Power Frequency Withstand (Phase/Earth) | 42 | 45 | 55 | 95 | kV |
| Power Frequency Withstand (Open Contacts) | 48 | 55 | 69 | 105 | kV |
| Lightning Impulse Withstand (Phase/Earth) | 75 | 95 | 125 | 170 | kV |
| Lightning Impulse Withstand (Open Contacts) | 85 | 105 | 145 | 195 | kV |
| Rated Short-Time Withstand Current | 12.5 | 12.5 | 12.5 | 12.5 | kA |
| Rated Short-Circuit Duration | 1 | 1 | 1 | 1 | s |
| Rated Peak Withstand Current | 31.5 | 31.5 | 31.5 | 31.5 | kA |
| Mechanical Life | 2000 | 2000 | 2000 | 2000 | cycles |
| Manual Operating Torque | ≤200 | ≤200 | ≤200 | ≤200 | Nm |
| Contact Opening Distance | >500 | >600 | >800 | >1030 | mm |
| Contact Pressure | 200 | 200 | 200 | 200 | N |
| Main Loop Resistance | ≤150 | ≤150 | ≤150 | ≤150 | μΩ |
| Frame Material | Hot-Dip Galvanized Steel Profile (NF A 91 121) | Hot-Dip Galvanized Steel Profile (NF A 91 121) | Hot-Dip Galvanized Steel Profile (NF A 91 121) | Hot-Dip Galvanized Steel Profile (NF A 91 121) | – |
| Articulation | Journaled on Bronze Bushing | Journaled on Bronze Bushing | Journaled on Bronze Bushing | Journaled on Bronze Bushing | – |
| Insulators | RP5 Type Tempered Glass (9 Insulators with Identical Bases) | RP5 Type Tempered Glass (9 Insulators with Identical Bases) | RP5 Type Tempered Glass (9 Insulators with Identical Bases) | RP5 Type Tempered Glass (9 Insulators with Identical Bases) | – |
| Collars | Aluminum Bronze Collars | Aluminum Bronze Collars | Aluminum Bronze Collars | Aluminum Bronze Collars | – |
| Blade Material | Work-Hardened Copper Blade (C-Shaped Profile) | Work-Hardened Copper Blade (C-Shaped Profile) | Work-Hardened Copper Blade (C-Shaped Profile) | Work-Hardened Copper Blade (C-Shaped Profile) | – |
| Blade Drive | Grease-Free Nylon Rollers | Grease-Free Nylon Rollers | Grease-Free Nylon Rollers | Grease-Free Nylon Rollers | – |
| Break Contacts | Wide Penetration/Alignment Tolerances, Permanent Contact Zone Separate from Break Contact | Wide Penetration/Alignment Tolerances, Permanent Contact Zone Separate from Break Contact | Wide Penetration/Alignment Tolerances, Permanent Contact Zone Separate from Break Contact | Wide Penetration/Alignment Tolerances, Permanent Contact Zone Separate from Break Contact | – |
| Visible Opening | Perfect Visibility of “Open” Position | Perfect Visibility of “Open” Position | Perfect Visibility of “Open” Position | Perfect Visibility of “Open” Position | – |
| Live Parts | Stainless Steel | Stainless Steel | Stainless Steel | Stainless Steel | – |
| Connections | 25mm Diameter Cylindrical Aluminum Pins for Live Working (LWT) | 25mm Diameter Cylindrical Aluminum Pins for Live Working (LWT) | 25mm Diameter Cylindrical Aluminum Pins for Live Working (LWT) | 25mm Diameter Cylindrical Aluminum Pins for Live Working (LWT) | – |
| Disconnect Devices | Whip-Type | Whip-Type | Whip-Type | Whip-Type | – |
| Closing Device | Tumbler-Type Spring-Loaded Snap-Closing (Acting Directly on Moving Shaft) | Tumbler-Type Spring-Loaded Snap-Closing (Acting Directly on Moving Shaft) | Tumbler-Type Spring-Loaded Snap-Closing (Acting Directly on Moving Shaft) | Tumbler-Type Spring-Loaded Snap-Closing (Acting Directly on Moving Shaft) | – |
| Shaft Stops | Elastic Shaft Stops at End of Travel | Elastic Shaft Stops at End of Travel | Elastic Shaft Stops at End of Travel | Elastic Shaft Stops at End of Travel | – |
| Support Brackets | Two Symmetrical Welded Galvanized Profile Elements (Support Head 100-360mm) | Two Symmetrical Welded Galvanized Profile Elements (Support Head 100-360mm) | Two Symmetrical Welded Galvanized Profile Elements (Support Head 100-360mm) | Two Symmetrical Welded Galvanized Profile Elements (Support Head 100-360mm) | – |
| Bird Protection | Phase-Insulating Support for Bird Protection | Phase-Insulating Support for Bird Protection | Phase-Insulating Support for Bird Protection | Phase-Insulating Support for Bird Protection | – |
| Mechanical Control | Lockable Control Lever with Insulation, Lower Tube with Insulation, Two Telescopic Tubes Adjustable ~300mm (Supports 11-14m), Three Roller Tube Guides | Lockable Control Lever with Insulation, Lower Tube with Insulation, Two Telescopic Tubes Adjustable ~300mm (Supports 11-14m), Three Roller Tube Guides | Lockable Control Lever with Insulation, Lower Tube with Insulation, Two Telescopic Tubes Adjustable ~300mm (Supports 11-14m), Three Roller Tube Guides | Lockable Control Lever with Insulation, Lower Tube with Insulation, Two Telescopic Tubes Adjustable ~300mm (Supports 11-14m), Three Roller Tube Guides | – |
| Support Height Range | 11-14m (15-18m with Extra Tube/Guide) | 11-14m (15-18m with Extra Tube/Guide) | 11-14m (15-18m with Extra Tube/Guide) | 11-14m (15-18m with Extra Tube/Guide) | m |
| Application | End-of-Line Tree Network, Substation Cluster Isolation, Downstream Line Work, Radial/Ring Network, Transformer Circuits, Live Working | End-of-Line Tree Network, Substation Cluster Isolation, Downstream Line Work, Radial/Ring Network, Transformer Circuits, Live Working | End-of-Line Tree Network, Substation Cluster Isolation, Downstream Line Work, Radial/Ring Network, Transformer Circuits, Live Working | End-of-Line Tree Network, Substation Cluster Isolation, Downstream Line Work, Radial/Ring Network, Transformer Circuits, Live Working | – |
Bepto is a leading Chinese company in electrical insulation, focused on developing advanced solutions for future power systems. We support transmission and distribution safety and growth, with long-term partners including State Grid, ABB, Schneider, Siemens, and GE. Our services reach clients in over 22 countries.
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Bepto focuses on the global market and provides our clients with products suitable for the local market:
Unwavering in our dedication to customers and delivering cutting-edge innovations,Bepto stands as your steadfast ally on the journey ahead.
