Product Introduction
The BSB C8P-200A high voltage DC contactor is a high-performance 200A high voltage DC contactor designed for photovoltaic and energy storage systems. Featuring a ceramic-sealed, gas-filled chamber, it delivers exceptional arc suppression, electrical endurance, and environmental durability. With a 1000VDC voltage rating and a 1000A peak breaking capacity, it is well-suited for use in inverter-side disconnects, battery safety circuits, and hybrid PV/ESS switching.
Product Features
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High Voltage Ready: Supports continuous operation up to 1000VDC with reliable arc isolation.
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Heavy Current Performance: Handles 200A continuously, with short-time overload up to 900A (10s).
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Ceramic Gas-Sealed: Protects against moisture, dust, and arc escape, enabling installation in harsh environments.
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Fast Switching Speed: Operate ≤30ms, release ≤10ms, bounce ≤5ms.
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Durable Electrical Life:
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200A @ 450VDC: 1000 ops
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200A @ 1000VDC: 100 ops
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200A @ 22.5~37.5VDC: 20,000–25,000 ops
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Compact Design: Connector-compatible design with internal female bolt terminals, approx. 350g weight.
Typical Applications
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PV inverter string switching and protection
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Battery disconnects in containerized BESS
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Pre-charge relay in energy storage hybrid systems
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Auxiliary switching for 1000VDC combiner boxes
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Fault-current isolation for solar + storage solutions
Summary of Technical Parameters
| Parameter | Value |
|---|---|
| Rated Current | 200A (≥60 mm² wire) |
| Rated Voltage | 12–1000VDC |
| Max Breaking Current | 1000A @ 800VDC (1 op) |
| Contact Type | SPST-NO (1 Form A) |
| Contact Resistance | ≤0.5 mΩ @ 200A |
| Electrical Life | |
| – 200A @ 22.5–37.5VDC | 20,000–25,000 ops |
| – 200A @ 450VDC | 1,000 ops |
| – 200A @ 1000VDC | 100 ops |
| Mechanical Life | 200,000 ops |
| Coil Voltage Options | 12VDC / 24VDC |
| Coil Resistance | 24Ω / 96Ω ±7% |
| Power Consumption | ~6W |
| Dielectric Strength | 3000VAC (contacts), 4000VAC (coil-contact) |
| Insulation Resistance | ≥1000 MΩ @ 1000VDC |
| Operate / Release Time | ≤30ms / ≤10ms |
| Bounce Time | ≤5ms |
| Operating Temp | -40°C to +85°C |
| Shock & Vibration | 98m/s² shock, 49m/s² vibration |
| Mounting | Vertical |
| Weight | ~350g ±15g |
Dimensional Drawing & Wiring Diagram
FAQs About The BSBC8P-200A High Voltage DC Contactor
Q1: Can the C8P-200A high voltage DC contactor handle full 1000VDC operations?
A1: Yes, it supports the full 1000VDC and can safely break 200A under such conditions.
Q2: What is the maximum current this contactor can handle?
A2: It supports 150A continuous current, with a maximum breaking current of 1000A at 800VDC (single operation).
Q3: Can the 200 amp dc relay operate continuously at high temperature?
A3: It supports -40°C to +85°C, but exceeding this range will cause gas diffusion and reduce insulation performance.
Precautions for Use
Mechanical Installation
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Always use flat and spring washers.
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Recommended torque:
– Load terminal (M6): 5–6 N·m
– Body mount (M5): 3–4 N·m
Electrical Protection
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For inductive loads (L/R ≥1ms), install TVS or varistor for surge suppression.
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For capacitive loads, use pre-charge circuits, and keep closing voltage difference ≤20V to avoid contact welding.
Coil Protection
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For models without economizer, do not use a diode as freewheeling protection.
➤ Use TVS or varistor, as diodes increase release time and reduce cut-off performance.
Thermal & Environmental Guidelines
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Internal chamber is gas-filled; avoid long exposure to temperatures outside –40°C to +85°C.
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Do not install near heat-generating components (e.g., fuses, shunt resistors).
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Avoid magnetic fields, grease contamination, or poor ventilation.
Handling Notes
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Do not reuse the contactor if it has been dropped.
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Ensure storage away from corrosive gas, direct sunlight, and condensation.
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Shelf life: 12 months in original packaging.