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 COXOC CO-001S (OS-0028), this example exhibits several notable differences including a shorter power cord, lower overall weight, a functioning illuminated rocker switch, and a COXOC-branded cord assembly rather than the Apollo-manufactured cord identified on the archive's earlier specimen.

The documented example provides insight into minor production variations within the COXOC CO-001S product line while demonstrating that the underlying electrical design remained consistent across multiple surviving specimens.

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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 surge suppression and AC power distribution for computers, peripherals, office equipment, and household electronics.

The design incorporates six grounded outlets arranged in three molded outlet pairs, an illuminated 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 that utilize smoother exterior surfaces.

Limited documentation of the model has presently been identified. Surviving examples suggest that the CO-001S originated during the consumer-computing era of the 1990s, when numerous Asian manufacturers supplied power-distribution and surge-protection products to the North American market under a variety of lesser-known brand names.

The documented example was acquired as part of the OldSurge Archive's effort to preserve products from manufacturers that have largely disappeared from the modern consumer surge-protection marketplace.

Significance

The documented specimen is significant because it allows direct comparison with the previously documented COXOC CO-001S (OS-0028).

At first glance the two units appear nearly identical. Closer examination revealed differences in power-cord length, overall weight, switch-lamp operation, cord certification markings, and overall condition. These observations suggest that COXOC sourced cord assemblies from multiple suppliers or introduced minor production changes during the manufacturing life of the model.

Teardown examination demonstrated that both specimens share 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 three-screw enclosure design. The differences between the two examples are therefore limited primarily to external components and service history rather than substantial design revisions.

The specimen is also significant because it demonstrates that the heat damage and plug-blade separation observed on COXOC CO-001S (OS-0028) were not inherent characteristics of the product 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 operating history rather than a manufacturing defect.

As a result, OS-0030 provides a useful reference for understanding both production variation and long-term field condition within the COXOC CO-001S product line.

Documented Example

• OldSurge ID: OS-0030
• Manufacturer: COXOC
• Model: CO-001S
• Device Type: Surge Protector
• Manufacturing Date: 1990s (estimated)
• Acquisition Status: Documented and preserved by the OldSurge Archive

Comparison With OS-0028

The comparison demonstrates that both documented specimens share the same underlying electrical design despite differences in cord assemblies, overall weight, switch-lamp condition, and long-term service history.

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	Heat discoloration and blade separation present	No blade separation or significant heat damage observed
COXOC Branding	Plug body	Plug body and cord assembly
Cord Branding	Apollo	COXOC
Cord UL File Number	E55351	E148006
Cord CSA File Number	LL34977	LL77450
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

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

• Second documented example of the COXOC CO-001S preserved by the OldSurge Archive.
• Approximately 15% lighter than OS-0028.
• Utilizes a shorter COXOC-branded SJT 14/3 power cord.
• Illuminated rocker switch remained fully functional during testing.
• Attachment plug exhibits no blade separation or heat-related deterioration.
• Utilizes the same SAS 241KD14 MOV and RONG FENG RF-112B circuit breaker documented in OS-0028.
• Demonstrates minor production variation while retaining substantially identical internal construction.

Weight

The documented specimen weighs approximately 12.1 ounces (343 grams).

This represents a reduction of approximately 2.2 ounces (62 grams) compared with COXOC CO-001S (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 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 COXOC CO-001S (OS-0028). The housing incorporates a heavily textured pebble-grain finish, six grounded receptacles arranged in three molded outlet pairs, a raised switch housing, and a permanently attached power cord.

The unit 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).

A red illuminated rocker power switch and externally accessible resettable circuit breaker are located within the raised cord-entry housing. During testing, the switch illumination remained fully functional.

The underside incorporates two keyhole-style wall-mounting slots, three enclosure screws, and a molded regulatory-information panel. The panel identifies the unit as model CO-001S and specifies an electrical rating of 125 volts, 15 amperes, and 60 hertz together with a transient suppression voltage rating of 330 volts, UL file number E147475, and manufacture in China.

The documented example utilizes a molded straight-blade NEMA 5-15P attachment plug connected to a shortened SJT 14/3 power cord measuring approximately 39 inches (99 cm) in length. The attachment plug incorporates molded COXOC branding identical to that observed on OS-0028.

Cord markings identify the attached cord assembly as a COXOC-branded SJT cable utilizing three 14 AWG conductors and carrying UL file number E148006 together with CSA file number LL77450. These markings differ from those documented on OS-0028 and indicate that the two specimens utilized different cord assemblies despite sharing the same underlying electrical design.

Unlike 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.

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.
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  Close-up of the red illuminated rocker power switch and textured enclosure surface. Unlike OS-0028, the switch illumination remained functional during testing.
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  Left-side profile showing the elevated switch housing, textured enclosure, integral strain relief, and shortened power cord.
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  Right-side profile showing the textured enclosure, raised switch section, and overall case geometry characteristic of the COXOC CO-001S design.
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  Outlet-end view showing the rounded enclosure profile, textured surface finish, and paired-outlet arrangement extending the full length of the surge protector.
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  Cord-entry end showing the resettable circuit breaker, strain-relief assembly, and raised switch housing.
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  Bottom view showing mounting slots, molded regulatory information, attached power cord, and attachment plug.
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  Underside cord-entry section showing mounting hardware, enclosure construction, and regulatory-information panel.
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  Molded regulatory-information panel showing model number, electrical ratings, transient suppression voltage rating, and UL information.
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  Outlet-end underside showing the textured enclosure, mounting hardware, and wall-mounting provision.
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  Attachment plug and shortened power-cord assembly.
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  NEMA 5-15P attachment plug showing molded COXOC branding and intact blade assembly.
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  Close-up view of the molded COXOC logo on the attachment plug body.
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  Close-up of the attachment plug showing intact blades, grounding pin, and manufacturer markings.
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  Cord markings showing UL file number E148006, SJT construction, 14 AWG conductors, and COXOC branding.
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  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 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 additionally identifies UL file number E147475 and confirms manufacture in China.

The ratings, markings, and overall enclosure design are substantially identical to those documented on COXOC CO-001S (OS-0028).

In the absence of packaging, manufacturer literature, serial numbers, or identifiable date-code markings, the precise manufacturing date remains unknown. Based on overall design characteristics, construction methods, and component selection, the documented specimen 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 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, circuit breaker, and receptacles appeared complete and undamaged upon initial examination.

The specimen was photographed prior to cleaning and subsequently prepared for detailed documentation, measurement, testing, 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.

Unlike COXOC CO-001S (OS-0028), whose switch lamp did not illuminate during testing, the illuminated rocker switch on OS-0030 remained fully functional. This observation confirms that the CO-001S was originally equipped with an illuminated switch assembly and that the non-functioning lamp documented on OS-0028 was the result of component failure rather than a design difference.

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 fully operational at the time of examination.

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  Connected to utility power with the rocker switch in the OFF position.
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  Connected to utility power with the rocker switch in the ON position and the indicator lamp illuminated.
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  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 substantially identical to that documented within COXOC CO-001S (OS-0028). The design utilizes a stamped-metal outlet-contact assembly extending the full length of the enclosure, 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.

Power enters through the attached COXOC-branded SJT 14/3 cord before passing through the circuit breaker and switch assembly. Electrical distribution is accomplished entirely through the stamped-metal outlet-contact assembly without the use of a printed-circuit board.

The surge-suppression circuitry consists of a single SAS 241KD14 metal-oxide varistor (MOV) connected directly across the incoming AC line. No additional MOVs, line-to-ground suppression paths, thermal cutoffs, thermal fuses, capacitors, inductors, filtering networks, or other supplemental surge-protection components were observed.

Internal examination revealed no evidence of overheating, arcing, damaged conductors, failed components, or other obvious electrical defects. Component placement, wiring layout, and overall construction closely match those documented within COXOC CO-001S (OS-0028).

The teardown confirmed that the two documented CO-001S specimens share the same fundamental electrical design, including the SAS 241KD14 MOV, RONG FENG RF-112B resettable circuit breaker, stamped-metal outlet-contact assembly, and three-screw enclosure construction. The primary differences between the specimens are limited to the shortened cord assembly, reduced overall weight, switch-lamp condition, cord markings, and external condition rather than substantial design revisions.

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  COXOC CO-001S Variant (OS-0030) opened following removal of the three enclosure screws.
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  Interior of the upper enclosure cord-entry section showing molded structural features, mounting provisions, and wall-mounting hardware.
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  Interior of the upper enclosure outlet section showing outlet guides, mounting features, and molded structural reinforcements.
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  Stamped-metal outlet-contact assembly providing power distribution to all six receptacles.
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  Cord-entry section showing the RONG FENG RF-112B circuit breaker, rocker switch, SAS 241KD14 surge-suppression component, and internal wiring.
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  Detail of the SAS 241KD14 metal-oxide varistor (MOV), internal wiring, and strain-relief assembly.
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  RONG FENG RF-112B resettable circuit breaker together with the adjacent SAS 241KD14 surge-suppression component.

Comparison Notes

Comparison with COXOC CO-001S (OS-0028) demonstrates that the differences between the archive's two documented COXOC CO-001S specimens are relatively minor.

Although OS-0030 weighs less, utilizes a shorter power cord, incorporates a functioning illuminated rocker switch, and employs a different cord assembly, teardown examination revealed essentially identical internal construction. Both specimens utilize 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 most significant manufacturing difference identified between the two specimens involves the power-cord assembly. OS-0028 utilizes an Apollo-manufactured cord carrying UL file number E55351 and CSA file number LL34977, while OS-0030 utilizes a COXOC-branded cord carrying UL file number E148006 and CSA file number LL77450.

The evidence suggests that COXOC maintained a consistent internal electrical design while sourcing different cord assemblies during production of the CO-001S.

The absence of plug damage and the continued operation of the switch lamp also indicate that several issues documented on OS-0028 were specific to that specimen's service history rather than inherent characteristics of the CO-001S design.

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.
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  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 shortened COXOC-branded SJT 14/3 power cord.
• Cord markings identify UL file number E148006.
• Cord markings identify CSA file number LL77450.
• Illuminated rocker switch remained functional during testing.
• Attachment plug incorporates molded COXOC branding.
• Utilizes the same SAS 241KD14 MOV and RONG FENG RF-112B circuit breaker documented in OS-0028.
• Internal construction is substantially identical to OS-0028.
• Attachment plug does not exhibit the heat damage or blade separation documented on OS-0028.

Related Articles

• COXOC
• COXOC CO-001S
• Power Cord Comparison
• Surge Protectors
• Collection Index