COXOC CO-001S
The COXOC CO-001S is a six-outlet surge protector manufactured by COXOC during the consumer-computing era of the 1990s.
The model combines six grounded outlets, a resettable circuit breaker, and basic surge suppression within a compact enclosure distinguished by its heavily textured finish and unusual paired-outlet arrangement. The documented example is additionally notable for preserving COXOC branding on the attachment plug and for illustrating an extremely simple single-MOV surge-suppression design.
The CO-001S represents a product category no longer prominently represented within COXOC's modern product offerings and provides insight into the lower-complexity end of the consumer surge-protector market.
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Overall view of the documented COXOC CO-001S specimen.
Overview
The COXOC CO-001S is a consumer surge protector intended to provide both surge suppression and AC power distribution for computers, peripherals, office equipment, and household electronics.
The design incorporates six grounded outlets arranged in three molded pairs, a rocker power switch, a resettable circuit breaker, and a permanently attached power cord. Its heavily textured enclosure and stepped switch housing give the unit a distinctive appearance compared with many later surge protectors utilizing smoother case designs.
Limited documentation of the model has presently been identified. Surviving examples suggest that the CO-001S originated during a period when Taiwanese manufacturers supplied large quantities of surge protectors and power-distribution products to North American consumers, often under lesser-known brand names.
The documented example was acquired as part of the OldSurge Archive's efforts to preserve and document products from manufacturers that have largely disappeared from the consumer surge-protection market.
Historical Context
COXOC was historically associated with surge protectors, power strips, and related electrical accessories. As documented by the archive's October 2026 review of the company's website, however, the company's contemporary product offerings emphasize electronic connectors and related technologies rather than surge-protection products.
The CO-001S appears representative of the surge-protector designs widely marketed during the 1990s, when many consumer products emphasized outlet capacity, basic surge suppression, and low-cost construction. The model combines a full 15-amp power-distribution system with a notably simple surge-suppression circuit consisting of a single metal-oxide varistor (MOV).
As a result, the CO-001S provides insight into a segment of the consumer surge-protector market that is no longer prominently represented within COXOC's modern product lineup.
Documented Example
- OldSurge ID: OS-0028
- Manufacturer: COXOC
- Model: CO-001S
- Manufacturing Date: 1990s (estimated)
Specifications
The COXOC CO-001S combines six grounded outlets, a 15-amp resettable circuit breaker, and basic MOV-based surge suppression within a compact enclosure. Despite its relatively lightweight construction, the unit utilizes a full-size 14 AWG power cord and carries standard North American electrical ratings.
- Manufacturer: COXOC
- Model: CO-001S
- Device Type: Surge Protector
- Country of Origin: China
- Outlets: 6 grounded outlets
- Protection: AC power-line surge suppression
- Electrical Rating: 125V, 15A, 60Hz
- Transient Suppression Voltage Rating: 330V
- Length: Approximately 10.25 in (26.0 cm)
- Width: Approximately 1.56 in (4.0 cm)
- Height: Approximately 1.13 in (2.9 cm) at receptacle section
- Height: Approximately 1.50 in (3.8 cm) at switch section
- Weight: Approximately 14.3 oz (405 g)
- Power Cord Length: Approximately 4.5 ft (1.37 m)
- Cord Type: SJT
- Conductors: 3 × 14 AWG (2.08 mm²)
- Cord Manufacturer: Apollo
- Cord UL File Number: E55351
- Cord CSA File Number: LL34977
- Plug Type: NEMA 5-15P
- Plug Style: Straight-Blade
- Surge Protector UL File Number: E147475
Notable Characteristics
- Single-MOV surge-suppression design.
- No printed-circuit board.
- RONG FENG RF-112B resettable circuit breaker.
- Apollo-manufactured SJT 14/3 power cord.
- COXOC branding identified solely on the attachment plug.
Weight
The documented example weighs approximately 14.3 ounces (405 g).
This places the COXOC CO-001S among the lighter surge protectors currently documented by the archive despite utilizing six grounded outlets, a resettable circuit breaker, and a full-length metal receptacle assembly.
The relatively low weight reflects the compact enclosure dimensions and minimalist design. Compared with many contemporary seven-outlet surge protectors documented by the archive, the CO-001S utilizes a narrower enclosure and fewer auxiliary features while maintaining a full 15-amp electrical rating.
Physical Characteristics
The enclosure incorporates a heavily textured exterior finish across both enclosure halves. Unlike many later surge protectors that utilize smooth exterior surfaces, the CO-001S employs a pebble-textured finish throughout the housing.
The enclosure measures approximately 10.25 inches (26.0 cm) long and 1.56 inches (4.0 cm) wide. The outlet section is approximately 1.13 inches (2.9 cm) tall, while the raised switch housing increases overall height to approximately 1.50 inches (3.8 cm).
The housing features a distinctive raised section at the cord-entry end that accommodates the illuminated rocker power switch. The switch housing transitions downward to a lower outlet section that extends the remainder of the enclosure length.
The six receptacles are arranged in three visually distinct outlet pairs separated by molded divider lines. This grouping creates a symmetrical appearance and distinguishes the CO-001S from many contemporary surge protectors that utilize uninterrupted outlet rows.
The outlet end of the enclosure incorporates a rounded profile with no visible external controls, indicators, or mounting hardware.
The cord-entry end incorporates a resettable circuit breaker positioned adjacent to the molded strain-relief assembly. The breaker utilizes a black push-button reset mechanism accessible from the exterior of the enclosure.
The underside of the enclosure incorporates a molded regulatory-information panel containing electrical ratings, model identification, surge-suppression information, UL listing information, and country-of-origin markings.
Unlike many later surge protectors that utilize printed or adhesive labels, the CO-001S incorporates this information directly into the enclosure tooling through molded lettering.
Two keyhole-style wall-mounting slots are provided to allow the unit to be mounted to vertical surfaces. The bottom panel is secured using multiple recessed fasteners.
A resettable circuit breaker is accessible from the cord-entry end of the enclosure through a black push-button mechanism adjacent to the molded strain-relief assembly.
The underside incorporates two keyhole-style mounting slots that permit wall or furniture mounting. The mounting slots are located near opposite ends of the enclosure and are molded directly into the bottom housing.
Regulatory and electrical information is molded directly into the enclosure rather than applied as a printed or adhesive label. This approach permanently preserves model and rating information and was commonly encountered on certain consumer surge suppressors of the era.
The documented example utilizes a molded straight-blade NEMA 5-15P attachment plug connected to a three-conductor SJT power cord. Visible cord markings identify the assembly as utilizing 14 AWG conductors and UL file number E55351.
The molded plug body follows a conventional straight-blade design and lacks external manufacturer branding.
Photographs
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Overall view of the documented COXOC CO-001S specimen.
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Six grounded outlets arranged in three molded outlet pairs. -
Illuminated rocker power switch and textured enclosure detail. -
Outlet end showing the rounded enclosure profile and textured finish. -
Side profile showing the elevated switch housing and paired outlet arrangement. -
Side profile showing the elevated switch housing and paired outlet arrangement. -
Cord-entry end showing the resettable circuit breaker and strain-relief assembly. -
Bottom view showing mounting features, molded regulatory information, and attached power cord. -
Cord-entry area showing the resettable circuit breaker and strain-relief assembly. -
Molded regulatory-information panel showing electrical ratings and UL information. -
Outlet-end underside showing wall-mounting features and enclosure construction. -
Attachment plug and cord markings showing SJT construction and 14 AWG conductors. -
Attachment plug showing certification markings and evidence of heat-related discoloration. -
Apollo-manufactured SJT 14/3 power-cord assembly. -
Cord markings showing CSA certification, FT2 flame rating, and conductor information. -
Attachment plug showing molded COXOC branding. -
Close-up of the molded COXOC logo on the plug body.
Date Codes
The documented example is identified as model CO-001S.
The molded regulatory-information panel confirms a maximum electrical rating of 125 volts, 15 amperes, and 60 hertz together with a transient suppression voltage rating of 330 volts.
The unit incorporates UL file number E147475 and is marked as manufactured in China.
Additional molded markings are present on interior enclosure surfaces. A single molded numeral, appearing to be either "5" or "2", is present within the upper enclosure. The significance of this marking has not been determined but may represent a tooling, cavity, or mold-identification mark rather than a manufacturing date.
No serial number or manufacturing-date information has presently been identified on the exterior of the documented example.
Condition Upon Acquisition
The documented example was acquired in used condition and exhibited light cosmetic wear consistent with long-term office use.
The textured enclosure remained structurally intact and displayed only minor surface scuffs, scratches, and accumulated dust. Compared with many similarly aged surge protectors, overall discoloration was relatively modest and the enclosure retained a generally uniform appearance.
The attached power cord, strain-relief assembly, illuminated rocker switch, and receptacles appeared complete and undamaged upon initial examination.
Examination of the attachment plug revealed localized discoloration adjacent to the current-carrying blades together with minor separation between the blade assemblies and the surrounding molded plastic body.
The condition is consistent with previous exposure to elevated temperatures at the attachment-plug interface. The specific cause cannot be determined from visual examination alone, although prolonged operation of high-current loads, poor receptacle contact tension, or similar conditions may have contributed to the observed damage.
A second archived COXOC CO-001S example does not presently exhibit comparable discoloration or plastic separation, suggesting the condition may be specific to the documented example rather than an inherent design characteristic.
The documented example was photographed in its final service location prior to retirement and documentation. No equipment was connected at the time the installation photograph was taken.
The attachment plug is particularly significant because it incorporates the only manufacturer branding presently identified on the documented example. The molded COXOC logo provided the evidence necessary to associate the model with COXOC and distinguish it from numerous otherwise similar generic surge-protector designs.
The unit was cleaned prior to detailed photography, testing, and further examination.
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Condition upon acquisition prior to cleaning and documentation. -
Installed in its final service location prior to retirement.
Functional Testing
The documented example was tested for basic electrical operation, switch functionality, and outlet wiring integrity.
When connected to utility power, the rocker switch successfully controlled power to the protected outlets. Functional testing confirmed that the unit remained operational.
No illumination was observed from the rocker switch during testing. It has not yet been determined whether the switch incorporates a failed indicator lamp or was originally manufactured without switch illumination despite its appearance.
Testing with a receptacle tester confirmed correct hot, neutral, and ground connections at the protected outlets. No open grounds, open neutrals, reversed polarity conditions, or other wiring faults were detected.
The documented example passed all functional testing performed during documentation and remained operational at the time of examination.
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Connected to utility power with the rocker switch in the OFF position. -
Connected to utility power during functional testing. -
Outlet tester indicating correct wiring and grounding.
Teardown
The COXOC CO-001S enclosure is secured using three Phillips-head screws and can be opened non-destructively.
Removal of the upper housing revealed an unusually simple internal construction consisting primarily of a stamped-metal outlet-contact assembly, a resettable circuit breaker, and a single metal-oxide varistor (MOV) connected between the hot and neutral conductors.
Unlike many surge protectors documented by the archive, the CO-001S does not utilize a dedicated printed-circuit board. Instead, the MOV is connected directly into the wiring assembly near the circuit breaker.
Power enters through the attached cord before passing through the resettable circuit breaker and power switch assembly. Electrical distribution is provided by a long stamped-metal contact structure extending the length of the outlet section.
The surge-suppression circuit consists of a single MOV connected between the hot and neutral conductors. No additional MOVs, filtering inductors, capacitors, or supplementary suppression components were observed.
The design represents one of the simplest surge-suppression implementations currently documented by the OldSurge Archive and appears focused on basic transient suppression while minimizing component count and manufacturing complexity.
No evidence of overheating, damaged conductors, failed components, arcing, or internal electrical failure was observed. Internal components appeared consistent with normal long-term use.
The upper enclosure incorporates molded outlet guides, structural reinforcement ribs, mounting features, and screw bosses that help maintain alignment of the outlet-contact assembly and enclosure components.
Electrical distribution is provided by a long stamped-metal contact assembly extending the length of the receptacle section. This assembly provides both electrical continuity and mechanical support for the outlet contacts.
The internal construction is notably minimalist. Unlike many surge protectors documented by the archive, the CO-001S does not utilize a dedicated printed-circuit board. Surge suppression is provided solely by a single metal-oxide varistor (MOV) connected between the hot and neutral conductors.
No additional MOVs, line-to-ground suppression paths, inductive filtering components, capacitors, indicator circuitry, or thermal protection devices were observed.
The design represents one of the simplest surge-suppression implementations currently documented by the OldSurge Archive and appears optimized for low component count and straightforward manufacture.
The cord-entry section contains a RONG FENG RF-112B resettable circuit breaker rated 15 amperes at 125 volts AC together with the rocker power switch and surge-suppression component.
Surge suppression is provided by a single MOV marked "SAS 241KD14" connected directly between the hot and neutral conductors. No printed-circuit board is present, and the MOV is wired directly into the power-distribution assembly using short leads and soldered connections.
Unlike many surge protectors documented by the archive, the design does not incorporate multiple MOVs, line-to-ground suppression paths, filtering inductors, capacitors, thermal cutoffs, status indicators, or diagnostic circuitry.
The simplicity of the design suggests a cost-conscious implementation intended to provide basic transient suppression while minimizing component count and manufacturing complexity.
The surge-suppression circuit consists of a single SAS 241KD14 metal-oxide varistor (MOV) connected directly between the hot and neutral conductors.
The MOV is mounted without a dedicated printed-circuit board and is connected directly into the power-distribution assembly using short wire leads and soldered connections.
The documented MOV remains commercially available and corresponds closely to modern 14 mm MOV devices rated for operation on 120-volt AC power systems.
Overcurrent protection is provided by a RONG FENG RF-112B resettable circuit breaker rated 15 amperes at 125 volts AC. UL certification records identify the RF-112B as part of the RONG FENG supplementary-protector product family.
The overall design represents one of the simplest surge-suppression implementations currently documented by the OldSurge Archive, utilizing only a single MOV together with a resettable circuit breaker and stamped-metal outlet-contact assembly.
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CO-001S opened following removal of the three enclosure screws. -
Interior of the upper enclosure showing outlet guides and structural reinforcements. -
Stamped-metal outlet-contact assembly providing power distribution to all six receptacles. -
Upper-enclosure cord-entry section showing molded structural features and cavity markings. -
Cord-entry section showing the switch assembly, circuit breaker, wiring, and surge-suppression components. -
RONG FENG RF-112B resettable circuit breaker rated 15A at 125VAC. -
Single MOV surge-suppression component and associated wiring. -
SAS 241KD14 metal-oxide varistor (MOV) providing surge suppression.
Comparison Notes
The COXOC CO-001S utilizes one of the simplest surge-suppression implementations documented by the archive. Unlike APC SurgeArrest Professional, Universal, Globe Electric, and PowerSentry products that incorporate dedicated suppression assemblies or multiple surge-suppression components, the CO-001S relies upon a single MOV connected directly across the incoming AC supply.
Despite this simplicity, the unit incorporates a full 15-amp resettable circuit breaker, heavy-gauge 14 AWG power cord, and a substantial stamped-metal outlet-contact assembly.
Recall Information
If applicable.
Historical References
The teardown identified two components for which modern documentation remains available.
The surge-suppression component utilized within the COXOC CO-001S is a SAS 241KD14 metal-oxide varistor (MOV). Comparable devices remain available through modern electronic-component distributors.
The unit also utilizes a RONG FENG RF-112B resettable circuit breaker. Contemporary UL certification records identify the RF-112B as part of a certified supplementary-protector family manufactured by Rong Feng Industrial Co., Ltd.
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Modern Mouser Electronics listing for a 241KD14 metal-oxide varistor similar to the component documented within the COXOC CO-001S. -
UL certification information for the RONG FENG RF-112B circuit-breaker series documented within the COXOC CO-001S.
Notes
- COXOC branding was identified only on the attachment plug.
- Utilizes a single SAS 241KD14 metal-oxide varistor for surge suppression.
- Utilizes a RONG FENG RF-112B resettable circuit breaker rated 15A at 125VAC.
- One of the simplest surge-suppression designs currently documented by the archive.