
Eaton
Motor Protection Circuit Breaker 50-58A
Part numberPKZM4-58EAN / GTIN4015082223946HS code8536.90
Electrical Components
Motor Protection Circuit Breakers
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Product Description
Eaton PKZM4-58 MOTOR PROTECTION CIRCUIT BREAKER 50-58A.
Technical Specifications
- Manufacturer part number (MPN)
- PKZM4-58
- EAN / GTIN
- 4015082223946
- HS code
- 8536.90
- Sales unit
- pcs
- Eaton catalogue number
- 222394
- Depth
- 160 mm
- Height
- 140 mm
- Width
- 55 mm
- Weight
- 1.136 kg
- Certifications
- CSA Class No.: 3211-05; IEC/EN 60947-4-1; CSA File No.: 165628; CSA-C22.2 No. 60947-4-1-14; UL Category Control No.: NLRV; VDE 0660; CE; CSA; IEC/EN 60947; UL File No.: E36332; UL; UL 60947-4-1
- Altitude
- Max. 2000 m
- Ambient operating temperature - max
- 55 °C
- Ambient storage temperature - max
- 80 °C
- Ambient operating temperature - min
- -25 °C
- Ambient operating temperature (enclosed) - max
- 40 °C
- Ambient operating temperature (enclosed) - min
- -25 °C
- Ambient storage temperature - min
- -40 °C
- Climatic proofing
- Damp heat, cyclic, to IEC 60068-2-30; Damp heat, constant, to IEC 60068-2-78
- Rated operational current for specified heat dissipation (In)
- 58 A
- Static heat dissipation, non-current-dependent Pvs
- 0 W
- Equipment heat dissipation, current-dependent Pvid
- 28.2 W
- Heat dissipation capacity Pdiss
- 0 W
- Heat dissipation per pole, current-dependent Pvid
- 9.4 W
- Rated frequency - max
- 60 Hz
- Rated frequency - min
- 50 Hz
- Rated operational current (Ie)
- 58 A
- Rated operational power at AC-3e, 220/230 V, 50 Hz
- 17 kW
- Rated operational power at AC-3e, 380/400 V, 50 Hz
- 30 kW
- Rated operational power at AC-3e, 440 V, 50 Hz
- 37 kW
- Rated operational power at AC-3e, 500 V, 50 Hz
- 37 kW
- Rated operational power at AC-3e, 690 V, 50 Hz
- 55 kW
- Rated operational voltage (Ue) - max
- 690 V
- Rated operational voltage (Ue) - min
- 690 V
- Rated uninterrupted current (Iu)
- 58 A
- Actuator type
- Turn button
- Features
- Phase-failure sensitivity (according to IEC/EN 60947-4-1, VDE 0660 Part 102)
- Functions
- Motor protection; Phase failure sensitive
- Number of poles
- Three-pole
- Connection
- Screw terminals
- Degree of protection
- IP20; Terminals: IP00
- Explosion safety category for dust
- ATEX dust-ex-protection, PTB 10, ATEX 3012, Ex II(2) G
- Lifespan, electrical
- 30,000 operations (at 400V, AC-3)
- Lifespan, mechanical
- 30,000 Operations (Main conducting paths)
- Mounting position
- Can be snapped on to IEC/EN 60715 top-hat rail with 7.5 or 15 mm height.
- Operating frequency
- 40 Operations/h
- Overvoltage category
- III
- Pollution degree
- 3
- Product category
- Motor protective circuit breaker
- Protection
- Finger and back-of-hand proof, Protection against direct contact when actuated from front (EN 50274)
- Rated impulse withstand voltage (Uimp)
- 6000 V AC
- Shock resistance
- 15 g, Mechanical, According to IEC/EN 60068-2-27, Half-sinusoidal shock 10 ms
- Suitable for
- Also motors with efficiency class IE3; Branch circuit: Manual type E if used with terminal, or suitable for group installations, (UL/CSA)
- Temperature compensation
- -25 - 55 °C, Operating range; -5 - 40 °C to IEC/EN 60947, VDE 0660; ≤ 0.25 %/K, residual error for T > 40°
- Assigned motor power at 230/240 V, 60 Hz, 1-phase
- 10 HP
- Assigned motor power at 460/480 V, 60 Hz, 3-phase
- 40 HP
- Assigned motor power at 575/600 V, 60 Hz, 3-phase
- 50 HP
- Rated short-circuit breaking capacity Icu at 400 V AC
- 50 kA
- Short-circuit current
- 60 kA DC, up to 250 V DC, Main conducting paths
- Short-circuit current rating (group protection)
- 600 A, 600 V High Fault, max. Fuse, SCCR (UL/CSA); 42 kA, 600 V High Fault, Fuse, SCCR (UL/CSA); 42 kA, 600 V High Fault, CB, SCCR (UL/CSA); 600 A, 600 V High Fault, max. CB, SCCR (UL/CSA)
- Short-circuit current rating (type E)
- Accessories required BK50/3-PKZ4-E; 50 kA, 480 Y/277 V, SCCR (UL/CSA); 50 kA, 240 V, SCCR (UL/CSA)
- Short-circuit release
- Basic device fixed 15.5 x Iu; ± 20% tolerance; 899 A, Irm
- Switching capacity
- 58 A (3 contacts in series), DC-5 up to 250V; 58 A, AC-3 up to 690 V
- Stripping length (main cable)
- 14 mm
- Terminal capacity (flexible with ferrule)
- 1 x (0.75 - 35) mm², Main cables; 2 x (0.75 - 25) mm², Main cables
- Terminal capacity (solid)
- 1 x (0.75 - 16) mm², Main cables; 2 x (0.75 - 16) mm²
- Terminal capacity (solid/stranded AWG)
- 14 - 2
- Tightening torque
- 3.3 Nm, Screw terminals, Main cable
- Overload release current setting - max
- 58 A
- Overload release current setting - min
- 50 A
- Tripping characteristic
- Overload trigger: tripping class 10 A
Standards & Compliance
- HS Code
- 8536.90
Cross References
- EAN 4015082223946
- SAP 1000046943
- Code 8803207
Product Documentation
Document preview: MOTOR PROTECTION CIRCUIT BREAKER 50-58A (PKZM4-58) — Specification Data Sheet (OEM)
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Catalogue entry last verified: 2026-09-29. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy PKZM4-58?
- PKZM4-58 can be ordered from cballast.com as a Eaton catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
- What is the manufacturer part number for this Eaton product?
- The manufacturer part number is PKZM4-58.
- What is the HS code for PKZM4-58?
- The customs tariff (HS) code for PKZM4-58 is 8536.90.
- Who manufactures PKZM4-58?
- PKZM4-58 is a Eaton product in the Electrical Components range.
- Is a datasheet available for PKZM4-58?
- Yes — the PKZM4-58 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for PKZM4-58?
- The minimum order quantity is 1.
- Is PKZM4-58 available?
- Yes — PKZM4-58 is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).
