Eaton PKZM0-16 Motor-Protective Circuit Breaker

注文番号: 046938

Part of Moeller PKZM0 series; 3-pole rotary-knob モーターサーキットブレーカー integrating overload & 短絡保護, クラス 10 トリップ特性, with built-in phase-failure protection.

✅ Core Technical Parameters

極: 3P

Adjustable current setting range: 10～16 A

定格使用電圧Ue: マックス. 交流 690 V

適合したモーター出力 (AC-3, 50 Hz):

230 V: 4 kW

400 V: 7.5 kW

440 V: 9 kW

Instantaneous short-circuit trip current: に固定 248 あ

旅行クラス: クラス 10

終了: ネジ端子

保護クラス: IP20 (front touch-safe)

全体の寸法: W45 mm × H93 mm × D76 mm

電気的耐久性: 100,000 オペレーション

規格: IEC/EN 60947-4-1, VDE, UL508, CE, CSA認定

✅ Key Features

1. Sensitive phase-failure protection; trips rapidly on single phasing to prevent motor burnout.
2. Rotary knob with padlock provision for lockout/tagout (心臓) safety isolation.
3. Built-in TEST pushbutton for manual mechanical trip testing.
4. Wide range of add-on accessories: 補助接点, fault trip contacts, 不足電圧解除, シャントトリップ, side busbars.
5. DINレール取付; モジュラー設計, directly combinable with DILM contactors to form MSC motor starter units.

✅ Variants with Suffixes (Same Current Rating)

PKZM0-16: Standard screw terminals (注文番号. 046938)

PKZM0-16-EA: EA export version

PKZM0-16-SPI32: Screw terminals on line side, push-in spring terminals on load side

PKZM0-16-GVP2: Bulk packaging version

✅ Selection & Equivalent Cross Reference

Domestic equivalents: Delixi CDP6-16, チント NS2-25 (10–16 A)

Next higher rating in series: PKZM0-20 (16～20 A)

注記: PKZM0 is an integrated breaker; it cannot be used solely as an overload relay. Use ZB series if only thermal overload protection is required.

✅ Troubleshooting Guide

1. Trips immediately with no load: Check if current setting is too low, 位相損失, or mechanical trip mechanism jamming.
2. Instant trip on motor startup: Short-circuit protection triggered; inspect motor winding short-circuit or cable fault.
3. Slow trip under sustained overload: Normal Class 10 inverse-time behaviour; if tripping frequently under heavy load, increase the current setting or upgrade to a higher-rated model.

Full Accessory List for PKZM0 Series (Applicable to PKZM0-16)

Installation rule: NHI-E = front-mounted; NHI = side-mounted; AGM = fault trip contact; U-PKZ0 = undervoltage release; A-PKZ0 = shunt trip. Suffix -PI = push-in spring terminals; no suffix = screw terminals.

1. 標準補助接点 (Main contact status feedback: closed/open signal)
2. NHI-E-10-PKZ0｜1NO, フロントマウント
3. NHI-E-01-PKZ0｜1NC, フロントマウント
4. NHI-E-11-PKZ0｜1NO+1NC (最も一般的な), フロントマウント
5. NHI11-PKZ0｜1NO+1NC, サイドマウント
6. NHI21-PKZ0｜2NO+1NC, サイドマウント
7. NHI12-PKZ0｜1NO+2NC, サイドマウント

PI version available: NHI-E-11-PKZ0-PI (スプリング端子)

評価: AC-15 230 V 0.5 あ, DC-13 24 V; used for PLC feedback and status indication lamps.

2. Fault Trip Contacts (Only actuated on protective trip – critical distinction!) AGM Series

Only changes state when tripped by overload / 短絡 / 位相損失; remains inactive during manual ON/OFF operations, used exclusively for fault alarm signals.

1. AGM2-01-PKZ0｜2NC (standard for engineering projects)

PKZM0 Full Model List

1) Standard Screw Terminal Models (Base Version, サフィックスなし)

サフィックスの定義 (同じ定格電流, only terminal/function differs)

1. -PI: Push-in spring terminals (工具不要の配線); 例: PKZM0-16-PI
2. -C: Older spring clamp version (same function as PI)
3. -EA: Export overseas standard model (identical construction to domestic standard version)
4. -T: Transformer protection variant (NO phase-failure protection, only thermal + short-circuit trip); 例: PKZM0-0,63-T
5. /AK: Thumb-lock rotary handle, field padlockable
6. -SPI32: Mixed terminals: line-side screw, load-side push-in

2) PKZM01 Compact Series (トグルハンドル, NO phase-failure protection; only overload + short-circuit trip)

注記: PKZM01 has no phase-loss protection; only for small motors without single-phasing risk.

3) Higher-Current PKZM4 Series (16～63 A, fully interchangeable accessories with PKZM0)

PKZM4-16 / PKZM4-20 / PKZM4-25 / PKZM4-32 / PKZM4-40 / PKZM4-50 / PKZM4-63

4) モデルの命名規則 (クイック選択)

PKZM0 16 PI

1. PKZM0 = Motor-protective circuit breaker (with phase-failure protection, 回転ハンドル)
2. Numeric value = Maximum adjustable current (16 = 10~16 A)
3. Suffix = Terminal type / special function

5) Standard Accessory List (Fits all PKZM0 variants)

1) 補助接点 (Position feedback)

NHI-E-11-PKZ0 (Front-mounted: 1NO+1NC)

NHI11-PKZ0 (Side-mounted: 1NO+1NC)

2) Fault Trip Contacts (Only triggered by overload/phase loss/short-circuit)

AGM2-01-PKZ0 (2ノースカロライナ州, standard for site engineering)

3) Voltage Releases (Only one can be fitted at a time, not both together)

U-PKZ0 Undervoltage release (24VDC / 110V / 230V / 400V)

A-PKZ0 Shunt trip release (24VDC / 110V / 230V / 400V)

4) Mechanical Accessories

PKZ0-XRH: Extended rotary handle for cabinet door mounting (padlockable)

CL-PKZ0: Phase barrier

B-PKZ0: Parallel busbar for multiple units

6) 選定ガイドライン

1. Require phase-failure protection → Choose PKZM0; No phase-loss risk & cost-sensitive → Choose PKZM01.
2. Remote tripping → Select A-PKZ0 shunt trip; Anti-restart on power failure → Select U-PKZ0 undervoltage release (cannot mount both).
3. Frequent on-site wiring → Prefer -PI push-in terminal version; General installation → Standard screw terminal model.