COXOC CO-001S Variant (OS-0030)
The COXOC CO-001S (Variant OS-0030) is a documented example of the COXOC CO-001S six-outlet surge protector preserved by the OldSurge Archive.
Although externally similar to the previously documented CO-001S specimen, this example exhibits several notable differences including a shorter power cord, lower overall weight, an illuminated rocker switch that remains functional, and a power-cord assembly bearing COXOC branding rather than the Apollo-manufactured cord identified on the archive's first documented example.
The specimen provides evidence that multiple manufacturing variations of the CO-001S were produced and demonstrates how apparently identical consumer surge protectors often incorporated different components, suppliers, and construction details during production.
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Overall view of COXOC CO-001S Variant (OS-0030) showing the six-outlet configuration, textured enclosure, shortened power cord, and molded COXOC-branded attachment plug.
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.
Significance
The documented specimen is significant because it demonstrates variation within the COXOC CO-001S product line.
At first glance the unit appears nearly identical to the archive's previously documented example. Closer examination, however, revealed differences in cord length, overall weight, switch functionality, and power-cord markings.
These variations suggest that COXOC may have sourced components from multiple suppliers or introduced manufacturing revisions during the production life of the model. Such differences are common among consumer electrical products of the 1990s but are often undocumented.
The specimen therefore provides a useful reference for understanding manufacturing variation within low-cost consumer surge protectors.
Internal examination showed that OS-0030 shares essentially identical construction with specimen OS-0028, including the same SAS 241KD14 surge-suppression device, RONG FENG RF-112B circuit breaker, stamped-metal outlet assembly, and three-screw enclosure design. The primary differences observed between the two specimens relate to cord length, weight, switch-lamp operation, and overall condition rather than substantial design changes.
Subsequent teardown examination demonstrated that OS-0030 and OS-0028 share essentially identical internal construction, including the same SAS 241KD14 metal-oxide varistor, RONG FENG RF-112B resettable circuit breaker, and stamped-metal outlet-contact assembly. The primary differences between the two documented examples involve cord length, overall weight, switch-lamp operation, manufacturer markings on the cord assembly, and overall condition.
The specimen demonstrates how otherwise identical consumer surge protectors may exhibit minor production variations while retaining the same fundamental electrical design.
The preserved plug assembly is particularly significant because it demonstrates that the heat damage and blade separation observed on specimen OS-0028 were not inherent characteristics of the CO-001S design. The attachment plug on OS-0030 remains structurally intact and exhibits no comparable deterioration, indicating that the damage documented on OS-0028 most likely resulted from that specimen's individual service history.
Documented Example
- OldSurge ID: OS-0030
- Manufacturer: COXOC
- Model: CO-001S
- Manufacturing Date: 1990s (estimated)
Comparison With OS-0028
| Characteristic | OS-0028 | OS-0030 |
|---|---|---|
| Weight | 14.3 oz (405 g) | 12.1 oz (343 g) |
| Cord Length | Approximately 54 in (137 cm) | Approximately 39 in (99 cm) |
| Dimensions | Approximately 10.25 × 1.56 × 1.50 in | Approximately 10.38 × 1.56 × 1.50 in |
| Enclosure | Pebble-grain textured housing | Pebble-grain textured housing |
| Switch Illumination | Not functioning | Functional |
| Plug Condition | Evidence of heat exposure | No significant heat damage observed |
| Manufacturer Branding | Molded COXOC logo on plug | Molded COXOC logo on plug and cord assembly |
| Internal Construction | Single SAS 241KD14 MOV, RONG FENG RF-112B breaker | Single SAS 241KD14 MOV, RONG FENG RF-112B breaker |
| Overall Construction | Three-screw enclosure, stamped-metal outlet assembly | Three-screw enclosure, stamped-metal outlet assembly |
| Plug Condition | Heat discoloration and blade separation present | No blade separation or heat damage observed |
| COXOC Branding | Plug body | Plug body |
| Cord UL File Number | E55351 | E148006 |
| Cord CSA File Number | LL34977 | LL77450 |
| Cord Branding | Apollo | COXOC |
Specifications
- Manufacturer: COXOC
- Model: CO-001S
- Device Type: Surge Protector
- Manufacturing Date: 1990s (estimated)
- Country of Origin: China
- Outlets: 6 grounded outlets
- Protection: AC power-line surge suppression
- Circuit Breaker: RONG FENG RF-112B
- Electrical Rating: 125V, 15A, 60Hz
- Transient Suppression Voltage Rating: 330V
- Length: Approximately 10.38 in (26.4 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 12.1 oz (343 g)
- Power Cord Length: Approximately 39 in (99 cm)
- Cord Type: SJT
- Conductors: 3 × 14 AWG (2.08 mm²)
- Cord UL File Number: E148006
- Cord CSA File Number: LL77450
- Plug Type: NEMA 5-15P
- Plug Style: Straight-Blade
- Surge Protector UL File Number: E147475
- Surge Suppression Component: SAS 241KD14 MOV
Notable Characteristics
- Weight approximately 15% lower than documented specimen OS-0028.
- Shorter power cord than documented specimen OS-0028.
- Illuminated rocker switch remains functional.
- COXOC-branded attachment plug and cord assembly.
- Externally similar to OS-0028 but exhibits multiple manufacturing differences.
Weight
The documented specimen weighs approximately 12.1 ounces (343 grams).
This represents a reduction of approximately 2.2 ounces (62 grams) compared with specimen OS-0028, which weighed approximately 14.3 ounces (405 grams).
Teardown examination revealed that both specimens utilize essentially identical internal construction, including the same SAS 241KD14 metal-oxide varistor, RONG FENG RF-112B resettable circuit breaker, stamped-metal outlet-contact assembly, and enclosure design.
Because internal construction appears substantially identical, the weight difference is most likely attributable to the shorter power cord utilized by specimen OS-0030.
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COXOC CO-001S Variant (OS-0030) on a digital scale showing a weight of approximately 12.1 ounces (343 grams).
Physical Characteristics
The documented specimen utilizes the same general enclosure design as specimen OS-0028. The housing incorporates a textured pebble-grain finish, six grounded receptacles arranged in three outlet pairs, a raised switch housing, and a permanently attached power cord.
A red rocker power switch is located at the cord-entry end of the enclosure. During testing, the switch illumination remained functional when power was applied.
The documented specimen utilizes a shorter permanently attached power cord measuring approximately 39 inches (99 cm), compared with approximately 54 inches (137 cm) on specimen OS-0028.
The attachment plug incorporates molded COXOC branding. Visible cord markings differ from those documented on specimen OS-0028, suggesting that the two units may have utilized different cord suppliers or originated from different production runs.
No significant heat-related damage was observed on the attachment plug or cord assembly.
The documented specimen measures approximately 10.38 inches (26.4 cm) long and 1.56 inches (4.0 cm) wide. The receptacle 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).
As with specimen OS-0028, the enclosure utilizes a heavily textured pebble-grain finish molded into both enclosure halves. The outlet section incorporates six grounded receptacles arranged in three paired groups separated by molded divider lines.
The raised cord-entry housing contains an illuminated red rocker switch together with an externally accessible resettable circuit breaker. The switch lens remained intact and functional during testing.
The underside incorporates two keyhole-style wall-mounting slots, three enclosure screws, and a molded regulatory-information panel. The documented ratings and markings appear substantially identical to those observed on specimen OS-0028.
The molded regulatory-information panel identifies the unit as model CO-001S and specifies a maximum rating of 125 volts, 15 amperes, and 60 hertz. The panel additionally identifies a transient suppression voltage rating of 330 volts, confirms manufacture in China, and references UL file number E147475.
The overall layout, molding details, mounting features, and regulatory markings appear substantially identical to those documented on specimen OS-0028.
The documented specimen utilizes a molded straight-blade NEMA 5-15P attachment plug connected to a shortened SJT power cord measuring approximately 39 inches (99 cm) in length. The attachment plug incorporates molded COXOC branding identical to that observed on specimen OS-0028.
Unlike specimen OS-0028, no blade separation, heat discoloration, deformation, or other evidence of elevated operating temperatures was observed on the attachment plug. The plug assembly remained structurally intact and exhibited only normal cosmetic wear consistent with long-term use.
Cord markings identify the attached power cord as an SJT-type assembly utilizing three 14 AWG conductors. The cord bears both COXOC branding and certification markings including UL file number E148006 and CSA file number LL77450.
These markings differ from those documented on specimen OS-0028 and indicate that the two examples utilized different cord assemblies despite sharing the same surge-protector design.
Photographs
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Overall view of COXOC CO-001S Variant (OS-0030) showing the six-outlet configuration, textured enclosure, shortened power cord, and molded COXOC-branded attachment plug.
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Six grounded receptacles arranged in three molded outlet pairs, illustrating the distinctive outlet layout shared with other documented COXOC CO-001S surge protectors. -
Close-up of the red illuminated rocker power switch and textured enclosure surface. Unlike specimen OS-0028, the switch illumination remained functional during testing. -
Left-side profile showing the elevated switch housing, textured enclosure, integral strain relief, and shortened power cord. -
Right-side profile showing the textured enclosure, raised switch section, and overall case geometry characteristic of the COXOC CO-001S design. -
Outlet-end view showing the rounded enclosure profile, textured surface finish, and paired-outlet arrangement extending the full length of the surge protector. -
Cord-entry end showing the resettable circuit breaker, strain-relief assembly, and raised switch housing. -
Bottom view showing mounting slots, molded regulatory information, attached power cord, and attachment plug. -
Underside cord-entry section showing mounting hardware, enclosure construction, and regulatory-information panel. -
Molded regulatory-information panel showing model number, electrical ratings, transient suppression voltage rating, and UL information. -
Outlet-end underside showing the textured enclosure, mounting hardware, and wall-mounting provision. -
Attachment plug and shortened power-cord assembly. -
NEMA 5-15P attachment plug showing molded COXOC branding and intact blade assembly. -
Close-up view of the molded COXOC logo on the attachment plug body. -
Close-up of the attachment plug showing intact blades, grounding pin, and manufacturer markings. -
Cord markings showing UL file number E148006, SJT construction, 14 AWG conductors, and COXOC branding. -
Cord markings showing CSA certification, LL77450 approval number, FT2 flame rating, and conductor information.
Date Codes
No serial number, manufacturing date, or date-code markings have presently been identified on the exterior of the documented example.
The molded regulatory-information panel identifies the unit as model CO-001S, specifies a maximum electrical rating of 125 volts, 15 amperes, and 60 hertz, and lists a transient suppression voltage rating of 330 volts. The panel also identifies UL file number E147475 and confirms manufacture in China.
The ratings and markings appear substantially identical to those documented on specimen OS-0028.
In the absence of packaging, manufacturer literature, or identifiable date-code markings, the precise manufacturing date remains unknown. Based upon overall design characteristics, construction methods, and component selection, the unit is believed to have been manufactured during the consumer-computing era of the 1990s.
Condition Upon Acquisition
The documented specimen was acquired in used condition and exhibited light cosmetic wear consistent with long-term residential or office use.
The housing remained structurally intact and retained the textured pebble-grain finish characteristic of the COXOC CO-001S design. Minor scuffs, dust accumulation, and age-related discoloration were present, but no major cracks, impact damage, or missing components were observed.
Unlike specimen OS-0028, the attachment plug did not exhibit blade separation, heat discoloration, or other evidence of heat-related damage.
The power cord, strain-relief assembly, rocker switch, and receptacles appeared complete and undamaged upon initial examination.
The specimen was photographed prior to cleaning and subsequently prepared for detailed documentation, testing, measurement, and teardown examination.
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Condition upon acquisition prior to cleaning and documentation.
Functional Testing
The documented specimen successfully passed basic operational testing.
When connected to utility power, the rocker switch correctly controlled power delivery to the protected outlets. The integrated switch lamp illuminated normally when the switch was placed in the ON position.
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 specimen 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 with the rocker switch in the ON position and the indicator lamp illuminated. -
Outlet tester indicating correct wiring and grounding during functional testing.
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 internal construction that is essentially identical to that documented within specimen OS-0028. Major components include a stamped-metal outlet-contact assembly, a RONG FENG RF-112B resettable circuit breaker, an illuminated rocker power switch, and a single SAS 241KD14 metal-oxide varistor (MOV) providing surge suppression.
Electrical distribution is accomplished through a long stamped-metal contact assembly extending the length of the enclosure and serving all six receptacles. As with OS-0028, no printed-circuit board is utilized.
The examination confirms that the primary differences between the two documented specimens are external in nature and involve the power-cord assembly, overall weight, switch-lamp condition, and service history rather than substantial design changes.
Removal of the upper housing revealed internal construction essentially identical to that documented in specimen OS-0028.
Power enters through the attached SJT power cord and passes through a RONG FENG RF-112B resettable circuit breaker before reaching the rocker switch and outlet-contact assembly.
Electrical distribution is accomplished through a substantial stamped-metal contact assembly extending the full length of the enclosure and serving all six receptacles. The design does not utilize a printed-circuit board.
Surge suppression is provided by a single SAS 241KD14 metal-oxide varistor (MOV) connected directly across the incoming AC line. No additional surge-suppression components, filtering networks, capacitors, inductors, or thermal protection devices were observed.
The overall construction demonstrates the same highly simplified surge-protection architecture documented within specimen OS-0028.
Comparison Notes
Specimen OS-0030 demonstrates that the differences observed between the archive's two documented COXOC CO-001S examples are relatively minor.
Although OS-0030 weighs less, utilizes a shorter power cord, and incorporates a functioning illuminated rocker switch, teardown examination revealed essentially identical internal construction in both units. Each specimen utilizes a RONG FENG RF-112B resettable circuit breaker, a single SAS 241KD14 metal-oxide varistor, a stamped-metal outlet-contact assembly, and a three-screw enclosure design.
The documented differences therefore appear to reflect normal production variation and differing service histories rather than major design revisions.
The absence of plug damage and the continued operation of the switch lamp suggest that several condition issues observed on specimen OS-0028 were specific to that artifact rather than inherent characteristics of the CO-001S design.
The most significant manufacturing difference identified between OS-0028 and OS-0030 involves the power-cord assembly. Although both specimens utilize 14 AWG SJT cords, the documented certification numbers and manufacturer markings differ.
Specimen OS-0028 utilizes an Apollo-manufactured cord carrying UL file number E55351 and CSA file number LL34977. Specimen OS-0030 utilizes a cord bearing COXOC branding together with UL file number E148006 and CSA file number LL77450.
Despite these differences, teardown examination demonstrated that the internal surge-protection circuitry, outlet-contact assemblies, circuit breaker, enclosure design, and overall construction remained substantially identical.
Recall Information
No recall information has presently been identified for the COXOC CO-001S.
Historical References
Teardown examination identified several components for which modern documentation remains available.
Surge suppression within the documented example is provided by a SAS 241KD14 metal-oxide varistor (MOV). Comparable 241KD14 devices remain commercially available through modern electronic-component distributors and continue to be marketed for AC power-line surge-suppression applications.
The CO-001S also incorporates a RONG FENG RF-112B resettable circuit breaker. Contemporary UL certification records identify the RF-112B as part of a certified supplementary-protector product family manufactured by Rong Feng Industrial Co., Ltd.
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Modern Mouser Electronics listing for a 241KD14 metal-oxide varistor comparable 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
- OldSurge ID: OS-0030.
- Documented as a variant of the COXOC CO-001S.
- Weighs approximately 12.1 ounces (343 g).
- Utilizes a shorter power cord than specimen OS-0028.
- Illuminated rocker switch remained functional during testing.
- Attachment plug incorporates molded COXOC branding.
- Cord markings differ from those documented on specimen OS-0028.
- Utilizes a COXOC-branded SJT 14/3 power cord.
- Cord markings identify UL file number E148006.
- Cord markings identify CSA file number LL77450.
- Uses the same SAS 241KD14 MOV and RONG FENG RF-112B circuit breaker documented in OS-0028.
- Plug assembly does not exhibit the heat damage observed on specimen OS-0028.