Description
SKU: IMO-SI32-PEL64R-XXX
🔧 IMO SI32-PEL64R Series — DC Isolator (Universal Excerpt)
Compact 2‑pole, 32A, 600VDC PV isolator for single-string applications.
4‑pole, 32A DC disconnect designed for two PV strings with IP66 enclosure.
6‑pole, 32A DC disconnect designed for three PV strings with IP66 enclosure.
8‑pole PV DC disconnect for four strings with robust outdoor-rated enclosure.
Product Description (Universal)
The IMO SI32-PEL64R series is a range of enclosed true DC switch disconnectors designed for photovoltaic (PV) systems. These isolators provide safe and reliable disconnection between solar panel arrays and inverters, using an operator-independent high-speed switching mechanism to minimize arcing and ensure electrical safety.
⚙️ Core Specifications (Applies Across Series)
- Type: True DC switch disconnector (not de-rated AC switch)
- Rated Current: Typically 32 A
- Rated Voltage: Up to 600 VDC (or higher depending on variant)
- Ingress Protection: IP65–IP66 / NEMA 3R–4X weatherproof enclosure
- Mounting: Enclosed, front-mount rotary actuator
- Terminal Type: Screw terminals
- Standards/Approvals: IEC, UL, cUL, CE compliant
🔢 Pole & String Configurations
| Model Type | Poles | PV Strings | Typical Use |
|---|---|---|---|
| SI32-PEL64R-2 | 2 pole | 1 string | Single PV string isolation |
| SI32-PEL64R-4 | 4 pole | 2 strings | Dual string systems |
| SI32-PEL64R-6 | 6 pole | 3 strings | Multi-string arrays |
| SI32-PEL64R-8 | 8 pole | 4 strings | Larger PV installations |
👉 Rule:
- 2 poles per string (positive + negative)
- Total poles = 2 × number of strings
🛡️ Key Features
- Operator-independent switching with high-speed mechanism
- Arc suppression system (≈3–5 ms typical) for DC safety
- Lockable OFF position for maintenance safety
- Knife-edge contacts + arc chambers for durability and cooling
- Fully enclosed switch mechanism (no exposed live parts)
- Wide operating temperature range (approx. −40°C to +45°C)
☀️ Applications
- Solar PV systems (rooftop and ground mount)
- DC isolation between PV array and inverter
- Commercial and residential solar installations