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NL1-T Series DC Switch Disconnectors | Slim DIN-Rail Type
NL1-T series dc switch disconnectors, slim 2P/4P up to 1200VDC.
Space-saving DIN-rail design, IP20, black handle.
IEC 60947-3 compliant; optimized for narrow PV panels and combiner boxes.
Overview
The dc switch disconnectors NL1-T slim series is a space-saving isolator for
PV combiner boxes and
DC panels.
With a thinner body compared to NL1, it is ideal for installations where panel space is limited.
Rated up to 1200VDC, available in 2P and 4P, it provides the same electrical
reliability in a slimmer enclosure.
Key Features
- Slim dc switch disconnectors, compact design saves space in panels
- 2P and 4P configurations, polarity-free wiring
- Voltage range: 300 / 600 / 800 / 1000 / 1200 VDC
- Current ratings: 16A / 25A / 32A
- Service life: 18k mechanical / 2k electrical operations
- Short-time withstand: 1kA, 1s; Impulse: 8.0 kV
- Ingress protection: IP20
- Compliance: IEC 60947-3
Electrical Characteristics
| Function | Isolator, Control |
| Poles | 2P / 4P |
| Rated Operational Voltage (Ue) | 300–1200 VDC |
| Rated Insulation Voltage (Ui) | 1200 VDC |
| Short-time Withstand (Icw) | 1 kA, 1 s |
| Impulse Withstand Voltage (Uimp) | 8.0 kV |
| Ingress Protection | IP20 |
| Service Life | Mechanical 18,000 / Electrical 2,000 |
Rated Voltage / Current
| Type | 300V | 600V | 800V | 1000V | 1200V |
|---|---|---|---|---|---|
| FMPV16-NL1T | 16A | 16A | 12A | 8A | 6A |
| FMPV25-NL1T | 25A | 25A | 15A | 9A | 7A |
| FMPV32-NL1T | 32A | 32A | 17A | 10A | 8A |
Switching Configurations
- 2P – single string isolation
- 4P – two strings or higher voltage isolation
- 4T / 4B / 4S – wiring flexibility
- 2H – paralleled poles for higher current
Dimensions
(Insert slim series drawing here)
Applications
The NL1-T dc switch disconnectors are specially designed for slim PV combiner boxes and
narrow inverter panels. They provide the same safety as NL1 but in a thinner profile.
Combine with gPV fuses and DC surge protectors for complete photovoltaic protection.
FAQ
Q1: What is the NL1-T dc switch disconnectors series?
A1: The NL1-T is a slim DIN-rail type dc switch disconnectors series designed for narrow PV panels and compact combiner boxes.
Q2: What versions are available in NL1-T?
A2: The NL1-T is available in 2P and 4P versions, supporting up to 1200VDC.
Q3: How does NL1-T differ from NL1?
A3: The NL1-T has a slimmer body to save panel space, while the NL1 is a standard size design.
Q4: What is the ingress protection level?
A4: The NL1-T provides IP20 protection, suitable for indoor installation.
Q5: Is the NL1-T polarity sensitive?
A5: No, the NL1-T is polarity-free and accepts + and – interchangeably.
Q6: Does NL1-T comply with IEC standards?
A6: Yes, it complies with IEC 60947-3.
Q7: What current ratings are supported?
A7: NL1-T models are available in 16A, 25A, and 32A ratings.
Q8: What is the endurance of NL1-T?
A8: It offers 18,000 mechanical and 2,000 electrical operations.
Q9: What applications is NL1-T best for?
A9: It is ideal for narrow PV panels, slim combiner boxes, and space-constrained DC panels.
Q10: Can NL1-T be customized?
A10: Yes, OEM/ODM customization is available for NL1-T series.
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