16 ©2026 Johnstone Supply, LLC DIRECT DRIVE MOTORS 48 Frame ECM Motors ECM Surge Protection and Repair Kits • Simply “plugs-in”, no wiring or splicing on S59420, S59-423 and S59-426 • S59-420 and S59-423 are dual-surge motor protectors • S59-426 is a circuit board/condensing unit/ heat pump protector • S59-422 repairs many standard ECM motor modules that have been damaged by voltage problems and power surges • S59-792 offers 24V protection • S59-793, S59-794 offers 120-240V protection Order # Mfg. # Description Each S59-792 PRO24 24V Plug-in Surge and Spike Protector 79.00 S59-420 VZPRO Standard (5-pin connector) ECM Motor Protector 79.00 S59-793 AZPRO Azure ECM Motor Surge Protector 79.00 S59-794 ENPRO Encite ECM Motor Surge Protector 79.00 S59-423 X13PR X-13 & Evergreen ECM Motor Protector 79.00 S59-426 ZAPPRO Circuit Board/Condensing Unit/Heat Pump Protector 79.00 S59-422 VZREP ECM Motor Repair Kit 59.00 RSH-20 Motor Protectors • UL Recognized • Thermally fused MOVs • 5 year product warranty • 3 Modes of protection: L-G, N-G, L-N • Plug-n-Play for ease of installation • Diagnostic LED indicates protection • 120/240VAC Type 4CA Order # Mfg. # Description Each S59-801 RSH-20MP-X13 X-13 ECM Motor Protector 95.00 S59-802 RSH-20MP-5P 5-Pin ECM Motor Surge Protector 89.00 S59-803 RSH-20MP-EN Encite ECM Motor Surge Protector 89.00 S59-804 RSH-20MP-AZ Azure ECM Motor Surge Protector 89.00 What is an ECM (Electrically Commutated Motor)? Simply stated, a way to achieve a higher level of motor efficiency. Through the use of built-in internal electronics and a permanent magnetic rotor, the advantages of greater control and efficient operating levels are both achieved. This efficiency is up to 80% in some cases; see the chart below comparing the efficiency levels of Shaded Pole, PSC and ECM. Energy Efficiency Comparison 90 80 70 60 50 40 30 20 10 0 Shaded Pole PSC ECM
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