Overload Relays Solid State ESP200, Class 48, 958, 958L and Bimetal ESP200 Solid State Overload Applications ESP200 Solid State Overloads ESP200 has a 4:1 current adjustment range with a fine adjustment dial labeled in full load amps. The heaterless overload minimizes the heat trapped in the enclosures, reduces cost for ventilation or cooling. Easily accessible Reset button, provides visible and audible indications to ensure the tripped overload is ready to re-start. This overload is specifically designed for special applications, to provide excellent protection of hermetically sealed and artificially cooled motors that require ambient insensitive and quick trip response times. Combined with a series lockout relay, it provides unsurpassed protection for hermetically sealed compressor motors in air conditioning applications. The combination of high trip speed, current adjustment, and ease of installation makes it suitable for these applications. The trip curves are customized to provide proper overload protection for these loads without causing nuisance tripping. It has selectable manual or automatic reset mode, and provides ground fault selection to protect equipment from damage in case of a fault. Specifically designed for the oil market and the cycling loads experienced with these types of pumping applications. These overload relays provide protection for standard motors, oil well pump motors, multi-torque connections, and ultra-high slip motors. Rotors can be damaged in less than 15 seconds during motor stall conditions if electrical power is not removed. To prevent damage during motor stall, the 958L solid state overload removes the power in 7 seconds at 250% lock rotor current. Therefore, the motor casing and the rotor will be protected from being damage saving the user money and time. Ambient Compensated Bimetal Overloads These thermal type overload relays are used to protect motors from excessive heat resulting from sustained motor overloads, rapid motor cycling and stalled rotor conditions. Although these devices function based on thermal principles they are designed to compensate for the ambient air temperature surrounding the overload. This helps prevent the occurrence of nuisance tripping when there are high surrounding ambient temperatures. The percentage of overload determines the length of time required to open the circuit. Siemens Industry, Inc. SPEEDFAX™ 2011 Product Catalog 17-49 CONTROL PRODUCTS 958L ESP200 Oil Field Solid State Overloads b Ambient Compensated Bimetal Overloads —Automatic or manual reset adjustment —A manual test button is provided to test the operation of the 3-pole overload relay control contacts —w15% nominal trip current adjustment —Accept either standard Class 20 or Quick Trip (NEMA Class 10) heater elements without any other changes or adjustments —Available with a normally open contact for an alarm circuit (SPDT) up to 60A —Compensated bimetal overload relays provide a constant trip time in ambient temperatures from –20°F to r170°F for a given heater rating b UL Listed File #E22655 or Component Recognized b CSA Certified File #LR6535 17 Designed to replace thermal, or ESP100 overload relays for any application. It has the same dimensions and footprint of the ESP100 overload relays. It can be directly coupled to the contactors or remotely mounted. In addition to the NEMA contactor applications, it also can be used with other types of controllers for applications requiring DP or IEC contactors. As a retrofit for other brands, it is used with a plate available for retrofitting competitive products. 958 ESP200 Special Use Solid State Overloads Ambient Compensated Bimetal Single Phase and Three Phase NEMA & General Purpose Control Designed for a wide variety of applications. The field selectable Trip Class 5, 10, 20 or 30 can easily be set by 2 DIP switches. This eliminates the guess factor of an application requirements and provides reduced inventory for multiple applications. The inherent benefits of the ESP200 ultimately results in cost savings for the user. 958 or 958L Solid State Overload General Overload Relays Solid State Class 48, ESP200 and 3RB20 Selection Ordering Information For CT’s see Accessories page 17-51. Dimensions see page 17-122. To retrofit or direct mount to a contactor, order 49ASMP1, 2, or 3 separately. See Retrofit Plates below. For remote mounting of frame size A order 49ASMS1 terminals separately, see page 17-97. 3-Phase, 48ATC3S00 NEMA & General Purpose Control Solid State—Class 48 Current Adjustment Range Phase Frame Size Catalog Number MRPD/MLFB List Price $ 0.25–1 0.75–3.4 3–12 5.5–22 10–40 13–52 25–100 50–200 100–300 133–400 200–600 250–750 400–1220 0.25–1 0.75–3.4 3–12 5.5–22 3 3 3 3 3 3 3 3 3 3 3 3 3 1 1 1 1 “A” “A” “A1” “A1” “A1” “B” “B” “B” “A1” b “A1” h “A1” d “A1” g “A1” e “A” “A” “A1” “A1” 48ATA3S00 48ATB3S00 48ATC3S00 48ATD3S00 48ATE3S00 48BTF3S00 48BTG3S00 48BTH3S00 48ATJ3S00 48ATK3S00 48ATL3S00 48ATM3S00 48ATN3S00 48ATA1S00 48ATB1S00 48ATC1S00 48ATD1S00 3UB81134AB2 3UB81134BB2 3UB81234CW2 3UB81234DW2 3UB81234EW2 3UB81334FW2 3UB81334GW2 3UB81334HW2 3UB81234JW2 3UB81234KW2 3UB81234LW2 3UB81234MW2 3UB81234NW2 3UB88134AB2 3UB88134BB2 3UB88234CW2 3UB88234DW2 CONTROL PRODUCTS 17 Solid State—3RB206cf, 3-Phase, Manual/Auto Reset For Contactor Size Setting Range Amps Class 10 Catalog Number List Price $ Class 20 Catalog Number 5 6 55 - 250 160 - 630 3RB2066-1GC2 3RB2066-1MC2 3RB2066-2GC2 3RB2066-2MC2 List Price $ Retrofit Plates for Contactors, Class 48 Replacement for Starter Sizes ESP200 Overload Frame Sizea Retrofit Plate Suffix Plate Kit Separate Size 00–13⁄4 Size 2, 21⁄2 Size 3, 31⁄2 Size 4 A or A1 B B B 1P 2P 3P 4P 49ASMP1 49ASMP2 49ASMP3 49ASMP3 Price Adder $ Ambient Compensated Bimetal—Open Type Class 48 Single Phase, 3-Phase (Panel Mount Only) Poles Amp Rating Auxiliary Contacts Contact Rating Catalog Number 1 25 60 100 180 30 30 60 60 100 180 1 NC 1 NC 1 NC 1 NC 1 NC 1 NO/NC 1 NC 1 NO/NC 3 NC 3 NC 5A (B600) & 5A (P300) 48DA18AA4 48GA18AA4 48HA18AA4 48JA18AA4 48DC38AA4 48DC39AA4 48GC38AA4 48GC39AA4 48HA38AA4 48JA38AA4 3 determine frame size of replacement solid state overload, refer to retrofit plates table above. use of 300:5 Current Transformers–3 of 97CT005. c Product Category: IEC. 10A (A600) & 5A (P300) 5A (B600) & 5A (P300) List Price $ a To d Requires use of 600:5 Current Transformers–3 of g Requires use of 750:5 Current Transformers–3 of b Requires e Requires use of 1200:5 Current Transformers–3 of h Requires use of 400:5 Current Transformers–3 of f Overload has busbar connections. 17-50 97CT008. 97CT012. Siemens Industry, Inc. SPEEDFAX™ 2011 Product Catalog 97CT009. 97CT006. Product Category: NEMA Overload Relays Special Use Solid State Overloads, Class 958 and 958L Selection Ordering Information Current Transformers Dimensions see page 17-122. Rating Class 958, 958L Catalog No. List Price $ 150:5 97CT002 200:5 97CT003 250:5 97CT004 300:5 97CT005 400:5 97CT006 600:5 97CT008 750:5 97CT009 1200:5 97CT012 Solid State—Class 958 and 958L Current Adjustment Range Phase Frame Size Catalog Number MRPD/MLFB List Price $ 10–40 25–100 50–200 5.5–22 10–40 13–52 25–100 50–200 3 3 3 3 3 3 3 3 “A1” “B” “B” “A1” “A1” “B” “B” “B” 958EB3SA 958GB3SA 958HB3SA 958LDB3SA 958LEB3SA 958LFB3SA 958LGB3SA 958LHB3SA 3UB85235EW2 3UB85335GW2 3UB85335HW2 3UB85236DW2 3UB85236EW2 3UB85336FW2 3UB85336GW2 3UB85336HW2 NEMA & General Purpose Control Time - Current - Characteristics Time - Current - Characteristics CLASS 958, 958L CLASS 958, 958L Time - Current - Characteristics Time - Current - Characteristics CLASS 48 CLASS 48 Trip - curve depending on unbalance Trip - curve depending on unbalance - CLASS 20 CLASS 20 1000 1000 1000 Trip time in seconds Trip time in seconds 50 100 100 50 50 CONTROL PRODUCTS 100 17 Trip time in seconds 500 phase unbalance = 0%, CLASS 20 phase unbalance = 20%, CLASS 20 phase unbalance = 50%, CLASS 20 phase unbalance = 80%, CLASS 20 phase unbalance = 100%, CLASS 20 500 500 CLASS 30 - cold start CLASS 20 - cold start 10 10 10 CLASS 958L CLASS 10 - cold start 5 5 5 CLASS 5 - cold start CLASS 5 - warm start CLASS 958 1 1 0.6 1 1.5 2 multiple of full load amp (FLA) 5 multiple of full load amp (FLA) 10 0.6 1 1.5 2 multiple of full load amp (FLA) 5 multiple of full load amp (FLA) 10 1 0.6 1 1.5 2 multiple of full load amp (FLA) 10 5 multiple of full load amp (FLA) a Temperature rating S25° to R60°C. Product Category: NEMA Siemens Industry, Inc. SPEEDFAX™ 2011 Product Catalog 17-51