ABB OTDC315FV11 Switch

Core Performance & Industrial Application

The ABB 1SCA158178R1001 (OTDC315FV11) is a two-pole 1500 VDC switch-disconnector rated 315 A for utility-scale PV combiner boxes and inverters.

Rated operational current 315 A at 1500 VDC under DC-21B, DC-22B, DC-PV1 and DC-PV2 utilization categories; rated making capacity Icm 10 kA; short-time withstand Icw 10 kA.

Compact 150 mm wide design; disconnects a single PV circuit; front IP20, lug terminals (30 mm width) at 30-40 N·m; 10,000 mechanical cycles.

It serves as DC isolation/load-break switching between PV strings and inverter.

Technical Specifications

▶ Product type: DC switch-disconnector

▶ Brand: ABB

▶ Model: OTDC315FV11; code 1SCA158178R1001

▶ Poles: 2; rated operational voltage 1500 VDC; Ui 1500 V

▶ Rated current: 315 A (DC-21B/22B/PV1/PV2)

▶ Making capacity Icm: 10 kA @1500 VDC; Icw 10 kA

▶ Terminals: Lug type, 30 mm; torque 30-40 N·m; front IP20

▶ Mechanical life: 10,000 cycles; IEC 60947-1/-3 approved

▶ Feature: Compact PV isolator, single-circuit disconnect

▶ Note: Operating handle, shaft and accessory package confirmed from nameplate before ordering

▶ Country of origin: Sweden

▶ Compliance: CE, CQC, UL certification

Industry Applications

Applied in 1500 VDC photovoltaic string combiner box, inverter DC isolation and switch-disconnector spare replacement.

Note: Confirm pole count, handle kit and accessory set against nameplate before ordering