285 Series 30A-150A Thermal Marine Manual Reset Circuit Breaker

Name: 285 Series 30A-150A Thermal Marine Manual Reset Circuit Breaker
Brand: Chint
SKU: 1600905055785

Brand Name:Chint
Place of Origin:China
Model Number:285 series, 187 series
Breaking Capacity:3000A @ 24V DC
Rated Voltage:12V, 24V, 42V, 48V
Type:Manual reset circuit breaker

Poles

Rated Current

SKU: 1600905055785 Category: Others

Description

285 series 30A 40A 50A 60A 70A 80A 100A 120A 150A Thermal High Hi Amp Marine Manual reset circuit breaker

285 Series Circuit Breakers

Provides circuit protection for 25 to 150 Amp loads when switching and circuit protection are both required
• Visible yellow reset lever shows open condition
• Trip-free design cannot be held closed after trip
• Drop in replacement for 185 Series Circuit Breakers
• 3,000A AIC for medium battery banks

Specifications
Interrupting Capacity: 3,000A @ 48V DC

Voltage Max.Operating: 48V DC

Temperature Min.Operating: -40°C

Temperature Max.Operating: 85°C

Type: Thermal
Class: Type Ill – Switchable/Manual Reset – Trip Free
Terminal Stud Terminal Stud: M6 (accepts 1/4″Ring Terminal)

Torque Mounting Hole: 50 in-lb (7.9 Nm) Accepts 1/4″ screw(M6)

Additional information

Weight	2 kg
Dimensions	25 × 25 × 25 cm
Rated Current	25A ~ 200A
Poles	1P

Technical Datasheet & Downloads

📄 Technical Documentation & Product Specifications

Download official engineering datasheets, certified test standards (IEC / UL / CE), wiring diagrams, and dimensional drawings for 285 Series 30A-150A Thermal Marine Manual Reset Circuit Breaker.

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Official Technical Datasheet (PDF) Complete electrical ratings, tripping characteristics, dimensions, and compliance specifications.

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2D/3D CAD & Dimensional Drawings STEP, DXF, and PDF CAD drawing files for panel builders and switchgear designers.

Technical FAQ & Selection Guide

💡 Frequently Asked Technical Questions & Selection Guide

Pure engineering specifications, tripping curve parameters, and electrical selection guidance for panel builders and system designers.

Voltage & Load Sizing

How to verify rated operational voltage, frequency, and load duty cycle?

Verify that the nominal line voltage (AC 230V single-phase or 400V/415V/690V three-phase at 50/60Hz, or DC voltage ratings) falls within the continuous maximum operating limits of the device. Check duty cycle ratings (continuous vs intermittent duty) to ensure thermal stability under full load.

Protection & Environment

What ingress protection (IP Rating) and environmental enclosures are recommended?

For clean indoor electrical rooms, standard IP20 modular DIN-rail housings are recommended. For outdoor, industrial washdown, or dusty environments, mount components inside weatherproof enclosures rated IP65/IP66 with UV-resistant polycarbonate or powder-coated steel enclosures equipped with compression cable glands.

Selectivity & Grading

How to ensure upstream and downstream coordination in power distribution boards?

Ensure proper discrimination by grading current thresholds and tripping time delays: upstream devices should have higher current ratings and intentional short-time delays (Class S), allowing downstream branch MCBs to clear localized faults without blacking out the entire facility.

Installation & Mounting

What mounting rails, busbars, and spatial clearances are required?

Components mount on standard symmetrical 35mm DIN rail (EN 60715 / TH35-7.5) or backplate screw fixings. Maintain recommended top/bottom ventilation gaps (typically 30–50mm) to ensure unrestricted air convection, and use standard pin/fork comb busbars to minimize contact resistance and wiring errors.

Conductor & Torque Sizing

What conductor sizes and terminal tightening torques should be applied?

Select copper or aluminum conductor cross-sections complying with IEC 60364-5-52 current-carrying capacity tables based on continuous load. Always use a calibrated torque screwdriver or torque wrench to tighten terminal screws to the manufacturer-specified torque to prevent hot-spot degradation and loose connections.