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DC Switch Disconnectors — Product Overview
This catalog lists Kuangya Electric’s DC switch disconnectors for PV and ESS applications. Each card highlights a single differentiator distilled from the product’s short description so you can quickly pick the right option for your panel layout or outdoor installation. Click “Specs & wiring” to see detailed ratings, dimensions, and typical wiring.
ELR SeriesELR1
1200V DC • DIN-rail
Specs & wiring
ELR SeriesELR2
1200V DC • IP66 Outdoor
Specs & wiring
L SeriesL1
Press to Lock
Specs & wiring
L SeriesL2
push forward to lock
Specs & wiring
NL SeriesNL1
Compact form factor
Specs & wiring
NL SeriesNL1-T
T-type disconnector
Specs & wiringQuick Compare
| Model | Mounting / Housing | Layout Advantage | Typical Use |
|---|---|---|---|
| ELR1 | DIN-rail | Compact inside cabinet | Indoor panels / combiner boxes |
| ELR2 | IP66 outdoor | Weatherproof enclosure | Outdoor PV arrays / EV sites |
| NL1 | Panel mount | Small footprint | Tight ESS cabinets |
| NL1-T | Panel mount (T-type) | Easier cable routing | Complex wiring layouts |
| L1 | Panel/cabinet | Standard variant | Modular ESS / industrial DC |
| L2 | Panel/cabinet | Lockable handle | Maintenance safety |
Compliant with Global Safety Standards
Selection & Sizing Guide
Picking the right DC switch disconnector ensures safe isolation in solar PV, energy storage (ESS), and EV charging systems. Kuangya Electric provides models for DIN-rail panels, IP66 outdoor enclosures, and compact DC fuse / surge protection integration — all tested to IEC 60947-3.
ELR1 — DIN-rail Type
Compact DC isolator designed for DIN-rail mounting inside PV combiner boxes and ESS cabinets.
- Voltage up to 1200V DC
- Space-saving design
- Ideal for indoor switchboards
ELR2 — IP66 Outdoor
Outdoor DC switch disconnector with robust IP66 housing, built for PV arrays and EV stations.
- Weatherproof (IP66)
- Lockable handle
- Rated 1200V DC
NL1 — Compact
Space-saving DC disconnector switch ideal for compact ESS enclosures and retrofit upgrades.
- Minimal footprint
- Fast installation
- Reliable load breaking
NL1-T — T-type
T-type DC switch disconnector layout for optimized cable routing in dense DC panels.
- Flexible wiring entry
- Stable switching
- PV/ESS compatibility
L1 — Standard Variant
Reliable DC switch disconnector for modular ESS and industrial DC systems.
- Cabinet integration
- High endurance
- Global DC compliance
L2 — Lockable Handle
DC isolator with lockable handle for secure OFF-state during maintenance.
- 1200V DC rating
- Enhanced safety
- PV & ESS systems
Where Kuangya Switch Disconnectors Fit
Kuangya DC switch disconnectors deliver safe and reliable isolation across solar PV and energy storage applications. Use compact DIN-rail types for protected indoor panels, or IP66-sealed versions for harsh outdoor conditions.
PV Combiner / Inverter Side (Indoor)
Panel-mount isolator for array inputs and inverter DC side. Compact DIN-rail footprint allows quick wiring.
Typical pick: ELR1 (DIN-rail)
Selection tips →
Outdoor PV Strings / Rooftop Arrays
Weather-sealed disconnector near string inputs or rooftop combiner boxes. IP66 housing with lockable handle.
Typical pick: ELR2 (IP66)
Selection tips →
ESS Battery Racks / Wind Nacelle Cabinets
Emergency DC isolation for battery racks or nacelle cabinets. Vibration-resistant design ensures fast, secure OFF switching.
Typical pick: NL1-T (T-type)
Selection tips →Installation & Safety Notes for DC Switch Disconnectors
Ensure reliable performance and operator safety with proper installation and maintenance practices.
Pre-installation Checklist
- Confirm correct model: IP20 indoor or IP66 outdoor.
- Verify conductor size, insulation class, and UV-resistant cables for outdoor use.
- Prepare LOTO devices and perform insulation resistance tests.
Wiring & Torque
- Follow polarity markings and maintain minimum bending radius.
- Ensure stress relief on all terminations.
- Tighten terminals to recommended torque values (see datasheet).
Commissioning
- Visually confirm complete isolation before energizing.
- Conduct load break tests for each string or battery rack.
- Apply system labeling for PV array, ESS, or inverter cabinet identification.
System Protection Pairing
For complete DC protection, pair switch disconnectors with DC fuses and DC surge protective devices, in accordance with IEC 60947-3.
Why Choose Kuangya
Kuangya Electric delivers reliable DC switch disconnectors with competitive advantages for OEMs, distributors, and system integrators worldwide.
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Factory Direct
Own manufacturing facilities ensure strict quality control and cost efficiency.
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Fast Lead Time
Streamlined production and stock models ready to ship for urgent projects.
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OEM / Branding
Custom labels and packaging to match your brand requirements.
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Technical Support
Expert guidance for sizing, wiring, and integration into PV & ESS systems.
How to Order / OEM Process
From model selection to delivery — a simple 5-step process with Kuangya Electric.
1
Select Model
Choose ELR1 / ELR2 / L1 / L2 / NL1 / NL1-T
3
Sample & Verify
Check wiring, dimensions, lockable options
4
OEM Branding
Custom labels & packaging if required
5
Production & Delivery
Arrange manufacturing & shipment
