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ELR2 Series DC Switch Disconnector | 2P/4P 1200VDC IP66 Enclosed Type
ELR2 series DC switch disconnector 1200V IP66 outdoor type, available in 2P/4P.
Weatherproof UV-resistant enclosure with padlock handle, IEC 60947-3 compliant.
Ideal for standalone outdoor PV isolation between solar modules and inverters.
Overview
The ELR2 Series DC Switch Disconnector 1200V IP66 outdoor type is designed for standalone photovoltaic
installations requiring safe and reliable isolation. With 2-pole and 4-pole versions, it provides visible
disconnection up to 1200VDC. Housed in a UV-resistant, weatherproof IP66 enclosure, it ensures long-term durability
in harsh outdoor environments. The padlockable handle and optional MC4 plug interface make installation and operation
safe and convenient.
Key Features
- Outdoor-ready DC switch disconnector 1200V IP66, UV-resistant housing
- 2P / 4P configurations for single or dual string isolation
- Padlockable rotary handle for maintenance safety
- Optional MC4 plug interface for easy PV connections
- Voltage ratings: 300V / 600V / 800V / 1000V / 1200V DC
- Service life: 18,000 mechanical / 2,000 electrical operations
- Impulse withstand: 8.0kV; short-time withstand: 1kA, 1s
- Complies with IEC 60947-3, AS60947.3
Electrical Characteristics
| Function | Isolator, Control |
| Poles | 2P / 4P |
| Rated operational voltage (Ue) | 300 / 600 / 800 / 1000 / 1200 VDC |
| Rated insulation voltage (Ui) | 1200 VDC |
| Short-time withstand current (Icw) | 1kA, 1s |
| Impulse withstand voltage (Uimp) | 8.0 kV |
| Service life | 18,000 mechanical / 2,000 electrical operations |
| Operating temperature | −40°C ~ +85°C |
| Ingress protection | IP66 (UV-resistant housing) |
| Mounting | Vertical or horizontal wall mount |
Rated Voltage / Current — FMPV16 / 25 / 32
| Type | 300V | 600V | 800V | 1000V | 1200V |
|---|---|---|---|---|---|
| FMPV16 (2P/4P) | 16A | 16A | 12A | 8A | 6A |
| FMPV25 (2P/4P) | 25A | 25A | 15A | 9A | 7A |
| FMPV32 (2P/4P) | 32A | 32A | 17A | 10A | 8A |
Switching Configurations
- 2P – isolate one PV string
- 4P – isolate dual strings simultaneously
- 4T / 4B / 4S – 4 poles in series with different input/output wiring
- 2H – 2 poles paralleled for higher current
Dimensions
Applications
The ELR2 DC switch disconnector 1200V IP66 outdoor type is designed for rooftop and ground-mounted PV systems,
inverter-side isolation, and commercial solar installations. Its weatherproof enclosure allows direct mounting near solar
arrays or inverters, without needing an additional box. Often combined with DC fuses and
DC SPDs for complete PV system protection.
Choose ELR2 for outdoor PV isolation. For compact DIN-rail integration inside combiner boxes, see
ELR1 Series.
FAQ
Q1: What is the ELR2 DC switch disconnector 1200V IP66 outdoor type used for?
A1: It is designed for outdoor photovoltaic isolation between solar modules and inverters.
Q2: What are the available versions?
A2: Available in 2-pole and 4-pole models for different PV string isolation needs.
Q3: Is the housing weatherproof?
A3: Yes, the UV-resistant housing is rated IP66 for outdoor use.
Q4: Can the handle be padlocked?
A4: Yes, the handle can be locked in the OFF position to ensure safe maintenance.
Q5: Does it support MC4 connections?
A5: Yes, optional MC4 plug interfaces simplify field wiring.
Q6: What is the maximum voltage rating?
A6: The ELR2 supports up to 1200VDC at 16A, 25A, or 32A depending on the model.
Q7: Can it be mounted vertically or horizontally?
A7: Yes, the enclosure allows both vertical and horizontal installation.
Q8: What standards does it meet?
A8: It complies with IEC 60947-3 and AS60947.3.
Q9: What is the difference between ELR1 and ELR2?
A9: ELR1 is a DIN-rail type for indoor panels; ELR2 has an IP66 enclosure for outdoor use.
Q10: Is OEM/ODM customization available?
A10: Yes, project-specific labeling and customization are supported.
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