150A Terminal Post Product Overview
The Longyd 150A Rectangular Terminal Post Series delivers a high-performance, industry-grade connection solution for heavy-duty power distribution systems, custom Lithium battery packs (BMS), RV/Camper van electrical overhauls, marine panels, and commercial solar energy storage systems (ESS). Designed specifically to withstand high vibrations and moisture, this pass-thru power stud ensures maximum safety, high-purity electrical conduction, and superior environmental resilience.
150A Terminal Post Technical Specifications Table
| Parameter / Feature | Type A (150A-A) Specification | Type C (150A-C) Specification |
| Product Name | Rectangular 150A Terminal Post (Side Lock) | Square All-Copper 150A Terminal Post (Top Lock) |
| Rated Current | 150A Max | 150A Max |
| Rated Voltage | 600V AC | 600V AC |
| Terminal Material | Premium Solid Brass (Body) | Square High-Conductivity Copper |
| Waterproof Grade | IP67 Sealed (Base Gasket & Boot Included) | IP67 Sealed (Base Gasket & Boot Included) |
| Flammability Rating | UL94-V0 (Self-extinguishing) | UL94-V0 (Self-extinguishing) |
| Dielectric Strength | >3000 VAC / minute | >3000 VAC / minute |
| Operating Temperature | -40°C to +105°C (-40°F to 221°F) | -40°C to +105°C (-40°F to 221°F) |
| Flange Dimensions | 35.5mm x 35.5mm (Square Base) | 35.5mm x 35.5mm (Square Base) |
| Mounting Pitch | 23mm x 23mm (4x Ø4.5mm Holes) | 23mm x 23mm (4x Ø4.5mm Holes) |
Key Structural & Performance Features
Innovative Dual-locking Variations: * Type A (150A-A): Features a horizontal M6 cross-hole inside the heavy terminal block, providing robust side screw wire fastening.
Type C (150A-C): Equipped with a heavy-duty top cross-recessed pan head screw, making it effortless to compress ring terminals or crimp lugs directly from the top.
Ultimate Flame Retardancy: The square base and structural housing are molded from premium UL94-V0 plastic. It will self-extinguish within 10 seconds, ensuring zero fire hazards under severe overload conditions.
IP67 True Sealing & Protection: Each terminal post comes with a dense, under-flange rubber seal that locks out moisture when flush-mounted. The included thick snap-on protective cap blocks out dust, rain, and accidental contact hazards.
Precision Mechanical Standards: Built with an industry-standard 23mm x 23mm mounting hole pitch and a 35.5mm compact square flange, making it an ideal drop-in replacement for old power studs in existing equipment enclosures.
OEM-Ready Complete Kit: Shipments include the core terminal post, protective rubber cover, 4 high-tensile panel mounting screws, and 4 matching locking flange hex nuts, dramatically reducing your assembly and component sourcing costs.
Industrial Applications
Renewable Energy: Commercial and residential Solar Energy Storage Systems (ESS), inverter connections, and wind power setups.
Automotive & Marine: Custom LiFePO4 battery banks, RV power grids, yachts, commercial boats, and heavy-duty trucks.
Automation: Industrial control panels, factory power distribution boxes, and high-power test benches.
Frequently Asked Questions
Q1: What is the main structural difference between Type A and Type C terminal posts?
Answer: The primary difference lies in the locking design and wiring connection style:
Type A (150A-A): Features a horizontal M6 cross-hole built directly into the side of the terminal block. It is designed for horizontal side-screw wire fastening.
Type C (150A-C): Features a square all-copper terminal block equipped with a heavy-duty top cross-recessed pan head screw. It is ideal for drop-in compression of standard ring terminals or wire lugs from the top.
Q2: Does the product come with standard hardware kits for installation?
Answer: Yes, absolutely. To save assembly time for OEMs, each package is fully equipped with a complete hardware kit, including:
1x Main Terminal Post (Red or Black)
1x Thick Snap-on Industrial Protective Cap
1x Flush-Mount Rubber Under-Flange Sealing Gasket
4x Panel Mounting Screws
4x Flange Locking Hex Nuts
Q3: Is this power stud completely waterproof for marine and outdoor environments?
Answer: Yes. This product is engineered with a strict IP67 waterproof rating. It features a dense rubber under-flange base gasket that creates a tight seal against moisture when flush-mounted onto a panel. Additionally, the tight-fitting protective boot prevents rain, water splashes, salt spray, and dust from contacting the live terminal core.
Q4: What material is used for the terminal block, and what is its maximum electrical performance?
Answer: The core of the power stud is manufactured from high-purity, high-conductivity solid brass (Type A) or square premium copper (Type C) to ensure minimal voltage drop and optimal heat dissipation. It supports a maximum rated current of 150A and a rated operating voltage of up to 600V AC, with a tested dielectric strength exceeding 3000VAC per minute.
Q5: Can this terminal block handle extreme high-temperature or automotive engine applications?
Answer: Yes. The structural outer housing is molded from high-performance industrial plastics with a certified UL94-V0 flammability rating, meaning it is self-extinguishing within 10 seconds in the event of a fire hazard. The rated safe operating temperature range is -40°C to +105°C (-40°F to 221°F), making it perfect for heavy machinery, automotive panels, solar energy storage systems (ESS), and RV custom lithium battery configurations.
Q6: Do you accept OEM custom specifications, custom branding, or bulk wholesale pricing?
Answer: Yes, as a dedicated B2B manufacturer, we fully support custom branding (logo printing), customized wire mounting holes, and specialized packaging for bulk commercial orders. Please contact our sales team directly with your estimated annual volume and detailed design requirements to receive a formal wholesale quotation.
Customization Available:
For custom lengths or bulk pricing, please email us:
nick.xu@lyd123.com










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