Hitachi 152SO, Installation & Operation Manual, Page: 6 / 36

PN-152SO Switch Overload Relay
Copyright 2019 SM 5929 Rev. 23, March 2019 iv
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 Base and Test Plugs .......................................................................................... 6-10
Figure 6-5. New Mounting Base for PN-152SO Relays .......................................................................... 6-12
List of Tables
Table 1-1. Electrical Specifications ........................................................................................................... 1-2
Table 4-1. Electrical Adjustments and Calibration .................................................................................. 4-12
Table 5-1. Parts List References for PC-250B Code Following Vital Relay ............................................. 5-1
Table 5-2. PC-250B Code Following Vital Relay Main Assembly Parts List (see Figure 5-1) ................. 5-2
Table 5-3. Parts List for Operating Unit (Item 11) Used on PC-250B Code Following Vital Relay
(see Figure 5-2) .................................................................................................................... 5-5
Table 5-4. Parts List for Contact Assembly Used on PC-250B Code Following Vital Relay
(see Figure 5-1) .................................................................................................................... 5-7
Table 5-5. Contact Assembly Section Parts List ....................................................................................... 5-9
Table 5-6. Old Style Mounting Base for PC-250B Relays Parts List ...................................................... 5-10
Table 5-7. Improved Mounting Base (N438689-003) for PC-250B Relays Parts List ............................ 5-12