Description
The Siemens 3TF4922-0XM0, 3TF4522-0XM0, 3TF4522-0XF0, and 3TF4622-0XM0 are SIRIUS 3TF series 3-pole AC contactors designed for switching motors and power circuits in industrial control panels. The 3TF series (legacy / classic SIRIUS line, predecessor to 3RT) is widely used for:
- Motor switching (AC-3 duty — e.g., 3TF4522 ≈ 22 A / 11 kW @ 400V)
- Power / resistive load switching (AC-1 duty)
- Interlocking with matching thermal overload relays (3UA / 3RB electronic OL)
The suffix -0XM0 typically indicates:
- -0X = AC coil voltage variant (e.g., -0X = 230V 50Hz AC coil — exact coil voltage depends on full last digits: -0XM0 often means 230V 50Hz coil in export markets; -0F0 = 110V 50Hz coil)
- M0 = Screw terminals, no auxiliary contact block (add-on NO/NC available as 3TX / 3TH auxiliary contact blocks)
Key specs:
- 3TF4522-0XM0 → 22 A AC-3, ~11 kW @ 400V, 3-pole, AC coil (230V typ.), screw term.
- 3TF4622-0XM0 → 32 A AC-3, ~15 kW @ 400V, same form factor.
- 3TF4922-0XM0 → 95 A AC-3, ~45 kW @ 400V (larger frame size).
- 3TF4522-0XF0 → Same as 4522 but 110V AC 50Hz coil (F = 110V AC).
Key Features
- AC-3 Rating: 9 A … 95 A (varies by frame — 3TF45/46/49)
- Coil Voltages: 24V DC, 110V AC, 230V AC, 400V AC — verify exact coil code in suffix
- Auxiliary Contacts: Up to 4 NO/NC add-on blocks (side-mounted 3TH / front-mounted 3TX)
- Overload Compatibility: Pairs with 3UA / 3RB electronic overload relays (same frame size)
- Mounting: 35 mm DIN rail or screw-mount; side-by-side with overload relay
- Country of Origin: Germany / India / China (Siemens Global)
Model & Rating Table
Model | AC-3 Rated Current | Motor Power @400V AC-3 | Coil (Typical) | Frame Size | Notes |
|---|---|---|---|---|---|
3TF4522-0XM0 | 22 A | ~ 11 kW (15 HP) | 230V AC 50Hz (X=230) | Size 2 (S00/S0 equiv.) | Most common 11kW contactor |
3TF4522-0XF0 | 22 A | ~ 11 kW | 110V AC 50Hz (F=110) | Size 2 | Same but 110V coil |
3TF4622-0XM0 | 32 A | ~ 15 kW (20 HP) | 230V AC 50Hz | Size 3 (S2 equiv.) | Larger frame than 4522 |
3TF4922-0XM0 | 95 A | ~ 45 kW (60 HP) | 230V AC 50Hz (typ.) | Size 5+ | Large frame — check dim’s |
⚠️ Important:
Technical Specifications (Representative — 3TF4522-0XM0, 22 A, 230V AC Coil)
Parameter | Specification |
|---|---|
Model / Order Code | 3TF4522-0XM0 (Siemens SIRIUS 3TF Contactor) |
Poles | 3 main contacts (NO) + 1 NO auxiliary (built-in early types — 4522 has 1 NO + 1 NC ? — verify: 3TF45 usually has 1 NO + 1 NC as standard front-mounted; -22 indicates 2 NO + 2 NC ? — actually Siemens 3TF4522: 3P + 1 NO + 1 NC built-in) |
Rated Operational Current (Ie) AC-3 | 22 A |
Motor Rating AC-3 @ 400V | 11 kW (15 HP) |
AC-1 Rating (Resistive) | ~ 32 A (check data sheet — AC-1 typically higher) |
Coil Voltage (Typical for -0XM0) | 230 V AC (50/60 Hz) — confirm by full code |
Coil Consumption | Holding: ~ 8 VA; Pick-up: ~ 70 VA (approx.) |
Mechanical Life | 10⁷ operations (no load) |
Electrical Life (AC-3) | 1.2 × 10⁶ ops @ rated current |
Terminal Type | Screw (M3.5/M4) — accepts fork/spade lugs or busbar |
Mounting | 35 mm DIN rail (top hat) or screw-mount |
Dimensions (W×H×D) | ~ 45 mm × 86 mm × 98 mm (3TF45 frame) |
Weight | ~ 0.45 kg |
Standards | IEC 60947-4-1, EN 60947-4-1, UL 508, CSA C22.2, CE, RoHS (later prod.) |
Warranty & After-Sales
- Factory new units: 12 months warranty
- Refurbished units: 3-6 months warranty (contact & coil check)
- Technical support for:
- Coil voltage verification (decode last digits — A/E/F/X/D etc.)
- Matching current 3RT replacement (3RT2026-1AP00 for 3TF4522 @230V AC coil)
- Overload relay selection (3UA5250-1E / 3RB10xx-1A…)
- Auxiliary contact block addition (3TH2022-0A… / 3TX…)
- Cross-reference vs. Schneider LC1D / ABB AF contactors if required
Delivery Time
- Standard delivery: 3-5 working days (stock coil voltages)
- Express shipping available upon request
Why Choose Our Store
- Genuine Siemens SIRIUS / legacy 3TF contactors — not rewound or clone
- Global supply network with competitive pricing
- Expertise in SIRIUS contactor / overload selection & 3TF→3RT retrofit advice
- Comprehensive technical documentation (coil code table, dimensional drawing, replacement cross-ref)
- Responsive customer service and support
Applications
- Motor Starters: DOL / Star-Delta starters (with timer & 2nd contactor) for pumps, fans, conveyors
- Power Switching: Resistive heating banks (AC-1 rating)
- HVAC / Water Treatment: Pump motor control panels
- Machine Tools: Spindle / auxiliary motor switching
- Retrofit / Spares: Replacement of existing 3TF contactors in legacy panels
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