01
Photovoltaic string protection
Use the VOPV-32 DC version with a coordinated gPV 10 × 38 mm fuse link for PV string and combiner-box circuits up to the confirmed 1000 V DC rating.
VOPV Series
RT18-32 / VOPV-32
10 × 38 mm fuse isolation and circuit protection for photovoltaic DC strings and general low-voltage AC circuits.
690 V AC / 1000 V DCVersion voltage
1–32 ARated-current range
10 × 38 mmFuse-link size
100 kA / 33 kABreaking capacity
01 / PRODUCT VIEWA modular 10 × 38 mm fuse-combination unit offered as the RT18-32 AC platform and the VOPV-32 photovoltaic DC platform, with ratings up to 32 A and tool-free front fuse-carrier access. One 18 mm DIN-rail format covers general AC fuse isolation and 1000 V DC photovoltaic protection, giving panel builders a clear platform for model matching, stocking and repeat assembly.
02 / TECHNICAL DATA
RT18-32 / VOPV-32 technical data
Use these ratings for initial model comparison. Confirm the circuit voltage, fuse-link utilization category, operating current, prospective fault current and controlled documentation before ordering.
Electrical ratings and installation dimensions
Version voltage690 V AC / 1000 V DC
Rated-current range1–32 A
Fuse-link size10 × 38 mm
Breaking capacity100 kA / 33 kA
Product versionsRT18-32 (AC) / VOPV-32 (PV DC)
RT18-32 rated voltageAC 500 / 690 V
VOPV-32 rated voltageDC 1000 V
Rated-current options1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 25, 30, 32 A
RT18-32 breaking capacity100 kA
VOPV-32 breaking capacity33 kA
RT18-32 / VOPV-32 dimension reference
Dimension drawing
Request the current dimension drawing for this model.
Configure RT18-32 / VOPV-32
Choose the electrical version first, then confirm fuse current and pole arrangement.
04 / APPLICATIONS
Applications for RT18-32 / VOPV-32
02
PV combiner-box assembly
The 18 mm modular body supports organized multi-pole layouts inside photovoltaic DC combiner and protection enclosures.
03
Low-voltage AC distribution
Use the RT18-32 AC version for overload and short-circuit protection in compatible AC distribution and equipment circuits.
05 / RESOURCES
RT18-32 / VOPV-32 controlled documents
Request documents matched to the selected electrical version, fuse link, pole arrangement and destination market.
What is the difference between RT18-32 and VOPV-32?
RT18-32 is the AC version rated up to AC 500/690 V with a stated 100 kA breaking capacity. VOPV-32 is the photovoltaic DC version rated up to DC 1000 V with a stated 33 kA breaking capacity.
Which fuse-link size does this unit accept?
Both versions use the cylindrical 10 × 38 mm fuse-link format. The fuse utilization category and current rating must still be selected for the actual circuit.
What rated-current options are available?
The supplied data lists 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 25, 30 and 32 A options.
Can the fuse carrier be opened while the circuit is loaded?
No. The product marking states that it must not be operated under load. The circuit must be safely isolated and verified before service.
Can multiple poles be assembled together?
Yes. The supplied drawing lists 1P, 1P+N, 2P, 3P, 3P+N and 4P arrangements with widths from 18 mm to 72 mm.
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