ABB AF16Z-30-10-21 Contactor

Original Factory Order No.: 1SBL176001R2110

1. Definizione di scomposizione del modello

AF16Z 30 10 21

1. AF16Z: Serie AF; Z = Low-power electronic wide-range coil (direct PLC drive capable); Dimensioni del telaio 16 classe
2. 30: Contatti principali: 3 Normalmente aperto (3NO), no main Normally Closed contacts
3. 10: Contatti ausiliari incorporati: 1 Normalmente aperto (1NO), 0 Normalmente chiuso
4. 21: Coil code → Control voltage: 24～60 V AC 50/60Hz / 20～60 V DC

⚠️ Difference between AF…Z and standard AF: Extremely low coil power consumption, supports direct driving by DC24V PLC outputs, resistant to voltage dips (compliant with SEMI F47).

2. Core Electrical Ratings

Maximum main circuit voltage: 690 V e

AC-1 (carico resistivo), ≤40°C ambient: 30 UN

AC-3 (3-motore di fase, 400 V): 18 UN, adatto per 7.5 motore da kW

AC-3 (690 V): 10.5 UN, massimo. 9 kW

Montaggio: Montaggio su guida DIN, collegamento con terminale a vite

Dimensioni complessive: W 45 mm × H 86 mm×D 77 mm

Temperatura operativa: -40～+70 °C (without thermal overload relay); -25～+60 °C (with thermal overload relay)

3. Key Coil Characteristics

Wide-range AC/DC universal: AC 24~60 V / DC 20~60 V

Soppressione delle sovratensioni incorporata; no external RC snubber or diode required

Low holding power consumption, ideal for continuous energized operation

Withstands short-term voltage fluctuations and voltage drops

4. Identificazione del terminale

Circuito principale: 1L1-2T1, 3L2-4T2, 5L3-6T3

Contatto ausiliario: 14NO (Normalmente aperto)

5. Common Alternatives & Distinctions
6. AF16Z-30-10-11: Same voltage range, equipped with standard AF coil (non low-power Z coil); cannot be directly driven by low-current PLC outputs, non intercambiabile.
7. AX16-30-10: AX economy series, without electronic wide-range coil, fixed control voltage; cannot replace AF16Z.
8. For 1NO + 1Contatti ausiliari NC: Select model AF16Z-30-11-21.
9. Applicazioni tipiche

Upstream of variable frequency drives, tifosi & pompe dell'acqua, HVAC equipment, semiconductor machinery, PLC DC output direct load control, industrial sites requiring high tolerance to voltage fluctuations.

ABB AF16Z-30-10-21 Contattore Installation Technical Document

Ordine n.: 1SBL176001R2110

1. General Safety Instructions

⚠️ All installation, wiring and maintenance work must be carried out with all power disconnected; lockout-tagout procedure is mandatory. Work shall only be performed by qualified electricians.

1. Classe di protezione: IP20. Solo per installazione in armadio. Do not install in open air, ambienti umidi, locations with heavy dust or corrosive gas exposure.
2. Norme applicabili: CEI/EN 60947-1, CEI/EN 60947-4-1; UL/CSA certified.
3. AF16Z is equipped with a low-power electronic wide-range coil with integrated surge suppression circuit. No external RC snubber or diode connection is required.
4. Informazioni di base sul prodotto

2.1 Definizione del modello

AF16Z: Serie AF, dimensione del telaio 16, Z = low-power electronic coil

30: 3 contatti principali normalmente aperti

10: Integrato 1 contatto ausiliario normalmente aperto

21: Coil voltage range AC 24～60 V 50/60Hz / DC 20～60 V

2.2 Dimensioni complessive

Larghezza 45 mm × Altezza 86 mm × Depth 77 mm

2.3 Rating Summary Table

3. Specifiche di installazione meccanica

3.1 Metodi di montaggio

Two mounting options available:

1. Montaggio su guida DIN (Raccomandato)

Rail standard: TS35 (35×7.5 mm / 35×15 mm)

Operazione: Hook the bottom latch onto the rail, press down until an audible click confirms locking. Per la rimozione, use a flat screwdriver to pry the bottom latch and lift upwards.

2. Base Plate Screw Mounting

Fasten diagonally using 2 × M4 screws; refer to outline drawing for mounting hole spacing.

3.2 Orientamento di montaggio & Liquidazione

1. Montaggio verticale (terminali superiori & metter il fondo a) preferito. 90° horizontal side mounting is permitted; upside-down installation is forbidden.
2. Multiple units may be mounted side-by-side without current derating. Maintain ≥15 mm vertical clearance for ventilation; keep away from heat-generating components such as resistors and inverters.
3. Avoid installation in high-vibration locations. Vibration acceleration >0.5g requires vibration damping measures.
4. Specifiche del cablaggio elettrico

4.1 Terminal Marking Definition

Upper main circuit: L1, L2, L3 (Power Inlet)

Lower main circuit: T1, T2, T3 (Load Outlet)

Non-UL applications allow power feed from top or bottom; UL certified installations require power input from upper L terminals.

Coil terminals A1, A2: Control signal input (AC/DC non-polarized)

Contatto ausiliario 13-14: Built-in normally open contact (1NO)

4.2 Specifiche del cavo & Lunghezza di spelatura

Lunghezza di spelatura standard del cavo: 10 mm

Main circuit conductors: Solid/stranded copper cable 1～6 mm²; ferrules recommended for flexible cables

Controllare / auxiliary circuit conductors: 0.75~2,5 mm²

4.3 Coppia di serraggio (Obbligatorio)

Terminali del circuito principale: 1.5 N·m

Bobina A1/A2 & auxiliary contact terminals: 1.2 N·m

Insufficient torque causes terminal overheating; excessive torque leads to thread stripping.

Recommended tools: PZ2 Pozidriv screwdriver / 5.5 mm flat torque screwdriver.

5. Critical Coil Application Notes (Core Feature of AF16Z)
6. Intervallo di tensione: AC24～60 V / DC20～60 V, wide voltage compatibility, direct drive by PLC DC outputs.
7. Very low coil holding power consumption, suitable for long-term energized operation; compliant with SEMI F47 voltage sag immunity requirements.
8. A1 and A2 are non-polarized; polarity does not matter for DC24V control.
9. Do not apply control voltage exceeding 60 V, otherwise the electronic coil module will be destroyed.
10. Installazione di accessori opzionali
11. Side-mounted auxiliary contacts (CA4 series)

Snap-fit onto left/right side slots without tools. Massimo 2 sets of side auxiliary contacts can be fitted to AF16.

2. Interblocco meccanico

Install for reversing circuit configuration of two AF16Z contactors to prevent simultaneous closing and short circuit between forward and reverse phases.

3. Thermal overload relay matching

Compatible with TA25DU series thermal relays, direct snap-fit mounting underneath the contactor.

7. Commissioning Procedure After Power-On
8. Under power-off condition: Visual inspection for correct wiring, no metallic debris, all terminals tightened to specified torque.
9. Manually actuate contactor mechanism to confirm smooth operation without jamming.
10. Test control circuit independently: Apply rated control voltage to A1/A2; contactor shall pull in reliably and drop out smoothly upon power removal.
11. Verify synchronous switching of auxiliary contact 13-14 with contactor operation.
12. Connect main circuit for no-load test run; check for abnormal noise and rapid terminal temperature rise.
13. 30-minute loaded operation test; recheck terminal temperature to ensure temperature rise stays within allowable limits.
14. Installation Faults & Prohibited Practices

❌ Forbidden operations:

Exposed loose strands on cable terminals

Tightening terminals while energized

Control voltage outside the 20～60 V range

Blocking ventilation channels above and below the contactor

Direct installation in environments with combustible dust or continuous condensation

Common Post-Installation Issues

1. Contactor chattering/unstable pull-in: Verify control voltage is above minimum operating level; check voltage drop along control cables.
2. Surriscaldamento del terminale: Stringere nuovamente i terminali alla coppia specificata; confirm conductor cross-section is adequate.
3. Failure to pull in when driven by PLC: Confirm unit is AF16Z (bobina a bassa potenza); standard AF16 coil cannot be directly driven by PLC transistor outputs.
4. Requisiti di manutenzione
5. Periodic inspection of terminal temperature and abnormal noise.
6. Avoid repeated switching above rated breaking capacity.
7. Never operate the contactor with arc shield removed. Replace the complete unit when contacts suffer severe ablation.

Mechanical Life Parameters of ABB AF16Z-30-10-21

The AF16Z shares identical mechanical construction with standard AF16. Official technical data:

✅ Mechanical endurance: 10 million operating cycles (10×10⁶ operations)

Test conditions: Rated control voltage, commutazione a vuoto, standard ambient temperature.

Supporting Key Parameters

1. Maximum mechanical operating frequency: 3,600 operazioni all'ora

Continuous high-frequency operation shall not exceed this limit to avoid accelerated mechanical wear.

2. Reference electrical endurance (depends on load type, not equal to mechanical life)

AC-3 (400 V motor load): ca. 1,000,000 cicli

AC-1 (carico resistivo): ca. 1,600,000 cicli

⚠️ Mechanical endurance represents the mechanical operating limit; service life in practical applications is normally determined by electrical erosion of contacts.

Osservazioni supplementari

1. AF16Z only differs by its low-power electronic wide-range coil variant. Armature, linkage and contact mechanical structure are identical to standard AF16; mechanical endurance ratings remain unchanged.
2. Actual mechanical endurance will decrease under harsh environments (polvere pesante, vibrazione continua, alta temperatura).
3. Definition of mechanical endurance: Operating cycles of contactor pull-in/drop-out driven by coil only, with no load connected to main circuit.