SKU: 66069251681

Commodore On/Off Battery Disconnect Switch [CM-202S]

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Description

Commodore On/Off Battery Disconnect Switch [CM-202S]On Off Battery Disconnect Switch The Commodore On Off Battery Disconnect Switch provides a reliable, durable, and safe solution for managing your marine or RV electrical systems. With a 300A continuous rating and a 900A cranking rating, this battery switch is designed to handle high power applications, ensuring stable operation for your boat, RV, or off grid systems. Its tin plated copper studs offer superior conductivity and corrosion resistance,

On/Off Battery Disconnect Switch

The Commodore On/Off Battery Disconnect Switch provides a reliable, durable, and safe solution for managing your marine or RV electrical systems. With a 300A continuous rating and a 900A cranking rating, this battery switch is designed to handle high-power applications, ensuring stable operation for your boat, RV, or off-grid systems. Its tin-plated copper studs offer superior conductivity and corrosion resistance, while the IP66-rated isolating cover provides robust protection against water and debris.

This versatile switch can be surface-mounted or flush-mounted, with snap-off side pieces allowing wiring access from any direction. Designed to meet stringent marine safety standards, including ISO 8846 Marine Ignition Protection, this switch is a must-have for any professional or DIY marine electrical system. Built for durability and reliability, the CM-202S ensures your system stays safe and operational in even the harshest conditions.

Features:

  • High-Performance Ratings: Handles 300A continuous, 500A intermittent, and 900A cranking current, ensuring dependable performance for high-power marine or RV systems.
  • Durable Tin-Plated Copper Studs: Features corrosion-resistant copper studs for maximum conductivity and long-lasting performance in harsh environments.
  • Versatile Mounting Options: These can be surface-mounted or flush-mounted with snap-off side plates, offering flexible installation and clean cable management.
  • Water-Resistant and Ignition Protected: Certified to ISO 8846 Marine standards, IP66-rated for protection against water jets, and safe for use in engine compartments.
  • Easy Wire Access: The isolating cover includes three snap-off side pieces, allowing wiring from any direction while protecting rear terminals for enhanced safety.
  • Meets Industry Standards: Complies with ABYC C-7, UL 1107, CSA C22.2 No.4, and other stringent safety regulations, ensuring compatibility and reliability.
  • Compact and Lightweight Design: Weighing only 0.83 lbs (0.38 kg), the compact design saves space without compromising durability or performance.
  • Rugged Marine-Grade Construction: Built to withstand the harshest marine and off-grid environments, ensuring long-lasting protection and reliable operation.

Specifications:

  • Maximum Voltage: 48 VDC
  • Switch Type: Single Circuit On-Off
  • Battery Inputs: 1
  • Color: Grey
  • Cable Clearance for 4/0 AWG Cables: 1.12 in (28.45 mm)
  • Cable Size to Meet Ratings: 4/0 AWG (120mm2)
  • Switch Positions: 2
  • Battery Combine: No
  • Alternator Field Disconnect: No
  • Cranking Rating 30 seconds: 900A
  • Continuous Rating: 300A
  • Intermittent Rating: 500A (5 min)
  • Mounting Holes: Accept #10 Screw
  • Stud Material: Tinned Copper
  • Stud Torque: 120 in-lb (13.56 Nm)
  • Terminal Stud Size: 3/8" - 16 (M10)
  • Weight: 0.65 lbs (0.29 kg)

Specifications:

  • Continuous Amperage: 300
  • Positions: 2
  • Box Dimensions: 3"H x 3"W x 4"L WT: 0.5 lbs
  • UPC: 817683023154

Brochure (pdf)
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SKU: 66069251681

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Landon
Alexandria, US
★★★★★ 5
A Beautiful Articulation of our Savior's Natures.
Format: Paperback
A fantastic work for both devotional reading and study. The translation flows smoothly, and the content (as to be expected with Cyril) is edifying and challenging. I would recommend this to any Christian interested in the conversation leading up to Ephesus and Chalcedon, and/or the hypostatic union.
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Reviewed in the United States on March 5, 2026
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Ian Kelly
Phoenix, US
★★★★★ 5
Wonderful read
Format: Paperback
Great read for all Christians
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Reviewed in the United States on March 21, 2026
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S. Lee
Charlottesville, US
★★★★★ 5
A crucial theologian at the crux of the clash of various constructions of the Crucified Lord's two natures.
Format: Paperback
Cyril of Alexandria (c. 376 – 444) is arguably one of the most important theologians on the development and clarification on Christology in the Church Tradition. Following on the heels of Athanasius and the Cappadocian Fathers, Cyril was the integral figure in hammering out the heresy of Nestorianism (a rough outline of Nestorianism: the belief that Jesus Christ is composed of two persons or, using Nestorians’ terminology, ‘two sons’–one divine and the other human. This strong dichotomy jeopardizes core tenants of Christianity: the uniqueness of Jesus, salvation brought up by God, the role of the Spirit in believers, etc). On the Unity of Christ is penned by the mature Cyril amassing and curtly arranging his thoughts in dialectical conversation. Here, Cyril is battling all kinds of heresies: Nestorianism, Arianism, adoptionism, Apollinarianism, and Eutychianism. It is a testament of his superior rhetoric to say so much against so many with such few words. This work, therefore, is an absolute essential reading for Christology.
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Reviewed in the United States on September 18, 2017
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Chaz
Carnegie, US
★★★★★ 5
It’s just as expected
Format: Paperback, Format: Paperback
For some reason St Cyril of Alexandria’s writings aren’t on New Advent. Or at least I couldn’t find them on there. It arrived just as expected 👍
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Reviewed in the United States on May 22, 2024
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Julio E Messer
San Leandro, US
★★★★★ 4
Good Theological Resource.
Format: Paperback
Good theological resource but the book was tiny and the text is all jumbled together.
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Reviewed in the United States on July 24, 2025

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