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SM 5924 1000 Technology Drive, Pittsburgh, PA 15219 645 Russell Street, Batesburg, SC 29006 PN-152SO Switch Overload Relay STS USA Part No. N322522-001 N322522-802 Installation Operation...
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PN-152SO Switch Overload Relay Copyright 2019 SM 5924 Rev. 3, March 2019...
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PN-152SO Switch Overload Relay Proprietary Notice This document and its contents are the property of Hitachi Rail STS USA, Inc. (formerly known as Union Switch & Signal Inc., and hereinafter referred to as "STS USA"). This document is furnished to you on the following conditions: 1.) That no...
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PN-152SO Switch Overload Relay Revision History Rev. Date Nature of Revision November, 1980 Original Issue March, 2000 Revision Revised to indicate that part number November 2003 N322522-001 March 2019 Hitachi Rail STS Branding * Revisions were identified by date only; no numbers were assigned to revisions.
6.3. PN-152SO Parts List (Unit “B”) ....................6-8 6.4. PN-152SO Base and Test Plugs Parts List ................6-9 6.5. Parts List For New Mounting Base For PN-152SO Relays ............ 6-11 List of Figures Figure 2-1. Typical Plug-in Relay and Mounting Base ................2-1 Figure 2-2.
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PN-152SO Switch Overload Relay Figure 4-3. Final Calibration ........................4-4 Figure 6-1. PN-152SO Internal Parts Location (Sheet 1 of 3) (Dwg. D66000-33) ........6-3 Figure 6-2. PN-152SO Part Details (Unit “A”) ................... 6-7 Figure 6-3. PN-152SO Part Details (Unit “B”) ................... 6-8 Figure 6-4.
PN-152SO Switch Overload Relay INTRODUCTION 1.1. Introduction In the PN-150 line of relays the PN-150SO is the equivalent of the ORP-66 D.C. switch overload relay. It is furnished primarily for the overload protection of high voltage D. C. switch machines. This relay can be used also to protect low voltage D. C. switch machines under the same current conditions.
PN-152SO Switch Overload Relay 1.3. Mechanical Specifications The mechanical specifications shown in Table 1-1 are common to all PN-152SO relays covered in this manual. Table 1-1. Mechanical Specifications Parameter Value Height 7-1/16” (17.93 cm) Dimensions Width 2-7/16” (6.19 cm) Depth 8-3/8”...
PN-152SO Switch Overload Relay INSTALLATION 2.1. General Relays plug directly into a mounting base that is secured to a rack. See Section 2.5 for proper relay insertion. 2.2. Mounting Base Secure the mounting base directly to the rack using the hardware furnished. All wiring terminates at the rear of the mounting base to solderless terminals (contact receptacles).
PN-152SO Switch Overload Relay 2. The index codes for each relay can be determined from the relay part number and its suffix that is marked on the nameplate attached to the front of the relay. The first two digits of the index code are the last two digits of the part number, and the second two digits of the index code are the last two digits of the suffix.
PN-152SO Switch Overload Relay 1. Receptacle contact springs must be inserted into the base with the lock side down or lanced tab up (refer to Figure 2-2). 2. Make certain that the lanced tab is slightly compressed as the receptacle contact spring is inserted along the top of the cavity.
PN-152SO Switch Overload Relay 3. Partially close the crimping tool jaws against the receptacle contact spring to hold it in place. (Do not crush the receptacle contact spring barrel at this time.) 4. Insert the stripped end of wire all the way into the receptacle contact spring barrel.
3.2.2. Service Requirements 3.2.2.1. General All PN-152SO relays must be inspected and tested at least every four (4) years. The tests (see Table 4-2) and inspections are to include: pick-up time at given current; visual inspection of contacts for damage, misalignment, corrosion or other contamination of parts;...
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PN-152SO Switch Overload Relay Copyright 2019 SM 5929 Rev. 23, March 2019...
PN-152SO Switch Overload Relay SHOP MAINTENANCE 4.1. Adjustment and Calibration 4.1.1. Operating Relay a. The air gap between the armature and the core should be between 0.007 to 0.010 inch. b. The armature stroke at the free end of the armature insulation should be 0.105 ±...
Stick, N398335 750.0 0.90 V. 8.0 V. NOTE When calibrating the stick relay, the operating armature must be picked up manually to close the front contact. REAR VIEW OF PN-152SO RELAY MOUNTING BASE OPER S.P.D.T. SWITCH STICK 12C 12B 12A Figure 4-1.
PN-152SO Switch Overload Relay c. The air gap between the end of the core and the Operating relay armature should not be reduced below 0.004 inch. 4.1.4. Internal Wiring The internal wiring should be as shown in Figure 4-2. 4.1.5. Final Calibration This is a test of the complete overload relay including the thermal resistor connected across the operating relay coil.
10% of the time value specified in Table 4-2. A small adjustment of the operating time can be obtained by reducing or increasing the distance between the turns of the thermal resistor. REAR VIEW OF PN-152SO RELAY MOUNTING BASE 10 OR 12V RELAY WITH 2...
PN-152SO Switch Overload Relay 4.1.6. Service Recommendations Relays should be checked periodically in service to assure they give the desired delay times. This may be done by obstructing the switch points, measuring the current at which the clutch slips and noting the time it takes for the relay to function.
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PN-152SO Switch Overload Relay Copyright 2019 SM 5929 Rev. 23, March 2019...
PN-152SO Switch Overload Relay TECHNICAL SUPPORT The Rapid Action Information Link Team (RAIL Team) is a group of experienced product and application engineers ready to assist you to resolve any technical issues concerning this product. Contact the RAIL Team in the United States at 1-800-652-7276 or by e-mail at railteam@hitachirail.com.
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PN-152SO Switch Overload Relay Copyright 2019 SM 5929 Rev. 23, March 2019...
PN-152SO Switch Overload Relay Figure 6-1. PN-152SO Internal Parts Location (Sheet 3 of 3) 6.2. PN-152SO PARTS LIST (Unit “A”) Copyright 2019 SM 5929 Rev. 23, March 2019...
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PN-152SO Switch Overload Relay Table 6-2. PN-152SO Parts List (Unit A) (Figure 6-2) Item Description Part No. Relay Unit “A” Complete N398329 Coil Component N191797 Backstrap Component N398317 Armature, Steel N291232 Armature Stop M152756 Screw, 6 - 40 x 3/16 Fil Hd...
PN-152SO Switch Overload Relay 6.4. PN-152SO Base and Test Plugs Parts List Table 6-4. PN-152SO Base and Test Plugs Parts List (Figure 6-4) Item Description Part No. Mounting Base Complete N398314 Mounting Base Only J078455 Clamping Plate – PN-150 J078458 Screw, 6 –...
PN-152SO Switch Overload Relay 6.5. Parts List For New Mounting Base For PN-152SO Relays Table 6-5. New Mounting Base (Parts List) (Figure 6-5) Item Description Part No. Base Complete for Wayside Relays (Note “A”) N451376-0302 Base Only N451376-0301 Base-Mounting Molded...