APC SurgeArrest Professional PRO7 (Z99080215662) - Revision history

PowerPig at 10:34, 5 October 2026

2026-10-05T10:34:21Z

PowerPig: /* Teardown */

2026-10-05T10:28:07Z

Teardown

← Older revision		Revision as of 10:28, 5 October 2026
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	<pre>		<pre>
			APC
	640-0321D		640-0321D
	REV 12		REV 12
			© 1997
	~~APC ©1997~~
	</pre>		</pre>

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	Inspection of the upper housing identified molded date-code wheels indicating manufacture during August 1999. The molded date code corresponds closely with the serial number, which also identifies the documented example as an August 1999 production unit.		Inspection of the upper housing identified molded date-code wheels indicating manufacture during August 1999. The molded date code corresponds closely with the serial number, which also identifies the documented example as an August 1999 production unit.

	The date-code wheels provide independent physical confirmation of the manufacturing date and represent the earliest documented example of this feature ~~among APC PRO7 specimens~~ preserved by the OldSurge Archive.		The date-code wheels provide independent physical confirmation of the manufacturing date and represent the earliest documented APC PRO7 example incorporating this feature preserved by the OldSurge Archive.

	~~Further inspection of the~~ suppression ~~board identified markings:~~		The suppression circuitry incorporates dual toroidal EMI/RFI filtering inductors, multiple metal-oxide varistors (MOVs), fuse protection, status-indicator circuitry, and an X2-rated interference-suppression capacitor.

	~~<pre>~~		The filtering capacitor is marked:
	~~APC~~
	~~640-0321D~~
	~~REV 12~~
	~~© 1997~~
	~~</pre>~~

	The ~~documented example therefore incorporates a later suppression-board revision than the archive's 1998 APC PRO7 specimen, which utilized a ©1996 board marked 640-0321C REV 7.~~

	~~The suppression circuitry includes dual toroidal EMI/RFI~~ filtering ~~inductors, multiple metal-oxide varistors (MOVs), fuse protection, indicator circuitry, and an X2-rated interference-suppression capacitor.~~

	~~The~~ capacitor is marked:

	<pre>		<pre>
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	</pre>		</pre>

	The June 1999 component date code is consistent with the documented example's August 1999 manufacturing date.		The June 1999 component date code is consistent with the documented example's August 1999 manufacturing date and provides additional evidence supporting the production period.

			No evidence of overheating, burned traces, catastrophic component failure, carbon tracking, significant corrosion, or previous repair activity was observed during internal examination. The documented example remained fully functional during testing.

	<gallery mode="packed" heights="250">		<gallery mode="packed" heights="250">
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	File:surge_APC_Pro7_Z99080215662_teardown_bottom_cordentry_01.jpg\|Cord-entry section showing switch assembly, circuit-breaker connections, grounding conductors, and PCB wiring.		File:surge_APC_Pro7_Z99080215662_teardown_bottom_cordentry_01.jpg\|Cord-entry section showing switch assembly, circuit-breaker connections, grounding conductors, and PCB wiring.
	File:surge_APC_Pro7_Z99080215662_teardown_board_traces_01.jpg\|Suppression circuit board showing APC ©1997 markings, board number 640-0321D, and revision 12.		File:surge_APC_Pro7_Z99080215662_teardown_board_traces_01.jpg\|Suppression circuit board showing APC ©1997 markings, board number 640-0321D, and revision 12.
			File:surge_APC_Pro7_Z99080215662_teardown_tracedetail_01.jpg\|Close-up of the suppression board underside showing revision markings, traces, and solder connections.
	File:surge_APC_Pro7_Z99080215662_teardown_boarddetail_01.jpg\|Suppression circuitry showing dual toroidal filtering inductors, MOV surge suppressors, fuse protection, and status-indicator components.		File:surge_APC_Pro7_Z99080215662_teardown_boarddetail_01.jpg\|Suppression circuitry showing dual toroidal filtering inductors, MOV surge suppressors, fuse protection, and status-indicator components.
	File:surge_APC_Pro7_Z99080215662_teardown_componentdetail_01.jpg\|~~Suppression circuitry showing filtering~~ capacitor.		File:surge_APC_Pro7_Z99080215662_teardown_boardcloseup_01.jpg\|Close-up view of the EMI/RFI filtering inductor and surge-suppression components.
			File:surge_APC_Pro7_Z99080215662_teardown_componentdetail_01.jpg\|Filtering capacitor marked June 1999 and associated suppression components.
	</gallery>		</gallery>

PowerPig: /* Teardown */

2026-10-05T10:21:49Z

Teardown

@@ Line 201: / Line 201: @@
 The date-code wheels provide independent physical confirmation of the manufacturing date and represent the earliest documented example of this feature among APC PRO7 specimens preserved by the OldSurge Archive.
 <gallery mode="packed" heights="250">
@@ Line 208: / Line 233: @@
 File:surge_APC_Pro7_Z99080215662_teardown_topdatewheelsdetail_01.jpg|Internal mold date-code wheels indicating August 1999 manufacture.
 File:surge_APC_Pro7_Z99080215662_teardown_bottom_left_01.jpg|Suppression circuit board installed within the lower enclosure showing outlet-contact assemblies and bus bars.
-File:surge_APC_Pro7_Z99080215662_teardown_board_traces_01.jpg|Underside of the suppression circuit board showing APC ©1997 markings, traces, and revision information.
+File:surge_APC_Pro7_Z99080215662_teardown_bottom_cordentry_01.jpg|Cord-entry section showing switch assembly, circuit-breaker connections, grounding conductors, and PCB wiring.
 </gallery>

PowerPig: /* Teardown */

2026-10-05T10:01:51Z

Teardown

@@ Line 186: / Line 186: @@
 The overall internal architecture closely resembles the 1998 APC PRO7 specimen documented by the OldSurge Archive, utilizing stamped-brass bus bars, individual outlet-contact assemblies, dedicated grounding conductors, and a centrally mounted suppression circuit board.
 <gallery mode="packed" heights="250">
@@ Line 191: / Line 206: @@
 File:surge_APC_Pro7_Z99080215662_teardown_top_left_01.jpg|Interior details of the upper housing showing outlet barriers, support structures, and accumulated debris.
 File:surge_APC_Pro7_Z99080215662_teardown_top_right_cordentry_01.jpg|Upper-housing cord-entry area showing molded support features, mounting bosses, and outlet barriers.
 </gallery>
 == Historical References ==

PowerPig at 09:50, 5 October 2026

2026-10-05T09:50:27Z

← Older revision		Revision as of 09:50, 5 October 2026
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	</gallery>		</gallery>

			== Teardown ==

			The APC SurgeArrest Professional PRO7 is assembled using multiple Phillips-head screws and can be opened non-destructively.

			Following removal of the enclosure screws, the upper housing separated cleanly from the lower enclosure without damage.

			The upper housing incorporates molded outlet barriers, structural reinforcing ribs, mounting bosses, and support features intended to retain the outlet-contact assemblies and brass bus bars.

			Inspection revealed moderate dust accumulation and localized debris within portions of the upper housing, consistent with long-term service and storage.

			The overall internal architecture closely resembles the 1998 APC PRO7 specimen documented by the OldSurge Archive, utilizing stamped-brass bus bars, individual outlet-contact assemblies, dedicated grounding conductors, and a centrally mounted suppression circuit board.

			<gallery mode="packed" heights="250">
			File:surge_APC_Pro7_Z99080215662_teardown_open_01.jpg\|PRO7 opened following removal of the enclosure screws.
			File:surge_APC_Pro7_Z99080215662_teardown_top_left_01.jpg\|Interior details of the upper housing showing outlet barriers, support structures, and accumulated debris.
			File:surge_APC_Pro7_Z99080215662_teardown_top_right_cordentry_01.jpg\|Upper-housing cord-entry area showing molded support features, mounting bosses, and outlet barriers.
			</gallery>

PowerPig at 23:50, 4 October 2026

2026-10-04T23:50:37Z

← Older revision		Revision as of 23:50, 4 October 2026
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	[[File:surge_APC_Pro7_Z99080215662_beforecleaning_01.jpg\|center\|600px\|PRO7 as acquired prior to cleaning and detailed documentation.]]		[[File:surge_APC_Pro7_Z99080215662_beforecleaning_01.jpg\|center\|600px\|PRO7 as acquired prior to cleaning and detailed documentation.]]

			== Testing ==

			The documented example was tested for basic electrical operation.

			The rocker switch successfully controlled power to all outlets.

			When connected to a properly wired receptacle and switched ON, the green Protection Working indicator illuminated normally, indicating the continued presence of functional surge-protection circuitry.

			The red Site Wiring Fault indicator remained unlit during testing.

			When switched OFF, both indicators extinguished and power was removed from the outlet bank.

			Testing with a receptacle tester confirmed correct hot, neutral, and ground wiring.

			No open ground, open neutral, reversed polarity, or other wiring faults were detected.

			The documented example passed basic outlet-wiring verification and appears fully operational following basic functional testing.

			<gallery mode="packed" heights="250">
			File:surge_APC_Pro7_Z99080215662_testing_pluggedin_turnedon_01.jpg\|PRO7 connected to power with the Protection Working indicator illuminated.
			File:surge_APC_Pro7_Z99080215662_testing_pluggedin_turnedoff_01.jpg\|PRO7 connected to power with the rocker switch in the OFF position and indicator lights extinguished.
			File:surge_APC_Pro7_Z99080215662_testing_pluggedin_polaritygrounding_01.jpg\|Outlet tester indicating correct wiring and grounding.
			</gallery>

PowerPig at 23:45, 4 October 2026

2026-10-04T23:45:48Z

@@ Line 57: / Line 57: @@
 * Cord Type: SJT
-* Cord Size: 16 AWG × 3 Conductors
+* Conductors: 16 AWG × 3
-* Cord UL File: E160081
+* UL File Number: E160081
-* Temperature Rating: 75°C
+* CSA File Number: LL86908
-* Flame Rating: VW-1
+* Temperature Rating:
-* Cord Length: Approximately 6 ft
+** 75°C (UL)
 == Notable Characteristics ==
@@ Line 117: / Line 131: @@
 File:surge_APC_Pro7_Z99080215662_plug_prong_detail_01.jpg|Right-angle attachment plug showing grounding pin, plug construction, and approval markings.
 File:surge_APC_Pro7_Z99080215662_plug_cord_detail_01.jpg|Power-cord markings showing cord type, conductor size, temperature rating, and approval information.
 </gallery>
@@ Line 123: / Line 138: @@
 * A molded "9934" enclosure marking is present on the underside and likely represents a 1999 week-34 production code.
 * A UL hologram label marked "07/99" is present on the underside and is consistent with late-1999 manufacture.
 == Historical References ==

PowerPig at 23:30, 4 October 2026

2026-10-04T23:30:31Z

← Older revision		Revision as of 23:30, 4 October 2026
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	* Height: Approximately 1.75 in (4.4 cm)		* Height: Approximately 1.75 in (4.4 cm)
	* Power Cord Length: Approximately 6 ft (1.8 m)		* Power Cord Length: Approximately 6 ft (1.8 m)
			* Plug Type: Grounded NEMA 5-15P
			* Plug Style: Right-angle
			* Plug Branding: APC

			* Cord Type: SJT
			* Cord Size: 16 AWG × 3 Conductors
			* Cord UL File: E160081
			* Temperature Rating: 75°C
			* Flame Rating: VW-1
			* Cord Length: Approximately 6 ft

	== Notable Characteristics ==		== Notable Characteristics ==
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	The plug design was intended to reduce the distance between the connected equipment and the wall. However, when installed in modern receptacles configured with the grounding contact in the upward position, the cord exits upward before bending downward. As a result, the design does not sit as close to the wall as many contemporary low-profile right-angle plugs.		The plug design was intended to reduce the distance between the connected equipment and the wall. However, when installed in modern receptacles configured with the grounding contact in the upward position, the cord exits upward before bending downward. As a result, the design does not sit as close to the wall as many contemporary low-profile right-angle plugs.

			The documented example utilizes an APC-branded right-angle attachment plug rather than the unbranded right-angle plug observed on some earlier documented PRO7 examples.

			The attached power cord is marked as SJT 16 AWG three-conductor cable with a 75°C temperature rating and VW-1 flame rating.

	== Photographs ==		== Photographs ==
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	File:surge_APC_Pro7_Z99080215662_pluged_in_01.jpg\|APC-branded right-angle plug installed in a wall receptacle illustrating cord routing.		File:surge_APC_Pro7_Z99080215662_pluged_in_01.jpg\|APC-branded right-angle plug installed in a wall receptacle illustrating cord routing.
	File:surge_APC_Pro7_Z99080215662_pluggedin_detail_01.jpg\|Close-up view of the APC-branded right-angle attachment plug installed in a wall receptacle.		File:surge_APC_Pro7_Z99080215662_pluggedin_detail_01.jpg\|Close-up view of the APC-branded right-angle attachment plug installed in a wall receptacle.
			File:surge_APC_Pro7_Z99080215662_plug_back_detail_01.jpg\|APC branding molded into the rear of the right-angle attachment plug.
			File:surge_APC_Pro7_Z99080215662_plug_prong_detail_01.jpg\|Right-angle attachment plug showing grounding pin, plug construction, and approval markings.
			File:surge_APC_Pro7_Z99080215662_plug_cord_detail_01.jpg\|Power-cord markings showing cord type, conductor size, temperature rating, and approval information.
	</gallery>		</gallery>

PowerPig at 23:26, 4 October 2026

2026-10-04T23:26:55Z

← Older revision		Revision as of 23:26, 4 October 2026
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	This interpretation is consistent with the serial number, which identifies the documented example as an August 1999 production unit.		This interpretation is consistent with the serial number, which identifies the documented example as an August 1999 production unit.

			The documented example utilizes an APC-branded right-angle grounded attachment plug connected to an attached six-foot power cord.

			The plug design was intended to reduce the distance between the connected equipment and the wall. However, when installed in modern receptacles configured with the grounding contact in the upward position, the cord exits upward before bending downward. As a result, the design does not sit as close to the wall as many contemporary low-profile right-angle plugs.

	== Photographs ==		== Photographs ==
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	File:surge_APC_Pro7_Z99080215662_bottom_rightside_01.jpg\|Right-side underside detail showing the UL hologram label, mounting features, serial-number recess, and enclosure markings.		File:surge_APC_Pro7_Z99080215662_bottom_rightside_01.jpg\|Right-side underside detail showing the UL hologram label, mounting features, serial-number recess, and enclosure markings.
	File:surge_APC_Pro7_Z99080215662_bottom_ULStickerClose_01.jpg\|Close-up of the UL hologram label marked 07/99 and identifying the device as a listed power tap and TVSS.		File:surge_APC_Pro7_Z99080215662_bottom_ULStickerClose_01.jpg\|Close-up of the UL hologram label marked 07/99 and identifying the device as a listed power tap and TVSS.
			File:surge_APC_Pro7_Z99080215662_plugandcord_01.jpg\|APC-branded right-angle attachment plug and attached six-foot power cord.
			File:surge_APC_Pro7_Z99080215662_pluged_in_01.jpg\|APC-branded right-angle plug installed in a wall receptacle illustrating cord routing.
			File:surge_APC_Pro7_Z99080215662_pluggedin_detail_01.jpg\|Close-up view of the APC-branded right-angle attachment plug installed in a wall receptacle.
	</gallery>		</gallery>

PowerPig at 23:25, 4 October 2026

2026-10-04T23:25:24Z

← Older revision		Revision as of 23:25, 4 October 2026
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	* A molded "9934" enclosure marking is present on the underside and likely represents a 1999 week-34 production code.		* A molded "9934" enclosure marking is present on the underside and likely represents a 1999 week-34 production code.
	* A UL hologram label marked "07/99" is present on the underside and is consistent with late-1999 manufacture.		* A UL hologram label marked "07/99" is present on the underside and is consistent with late-1999 manufacture.

			== Historical References ==

			An archived APC website specification page captured on 12 October 1999 documents the SurgeArrest Professional Series and provides period specifications for the PRO7 and PRO7T models.

			The specifications include a surge-energy rating of 320 joules, EMI/RFI filtering performance exceeding 25-60 dB, a 15-ampere electrical rating, and 330-volt suppression ratings across all protection modes.

			The archived specifications correspond closely with the documented example and provide contemporary manufacturer documentation from the same year as manufacture.

			[[File:1991012_apcc.com_fromarchive.org_Pro7Pro7T_Specs.png\|center\|700px\|Archived APC website specification page for the SurgeArrest Professional Series including the PRO7 and PRO7T models, captured in October 1999.]]