E-T-A 3600-P10-Si-8A Thermal-Magnetic Circuit-Breaker

E-T-A (Eaton Acquired Brand) 3600-P10-Si-8A Thermal-Magnetic Circuit-Breaker for Equipment (CBE)

Nota: E-T-A is not an original Eaton brand; it is a German over-current-protection brand acquired by Eaton. CBE stands for Circuit-Breaker for Equipment.

Decodificación de modelos

3600-P10-Si-8A

3600: 3600 serie, single-pole thermal-magnetic equipment circuit-breaker

P10: Push-button reset, P-housing; 10 = M-type tripping characteristic (thermal overload delay + electromagnetic short-circuit instantaneous trip)

Si: 6.3×0.8 mm blade terminals, supports socket plug-in / panel snap-in mounting, with unprotected shunt tap terminal, sin contactos auxiliares (suffix Sia denotes auxiliary contacts fitted)

8A: Rated current In=8 A

Especificaciones eléctricas básicas

Aplicaciones típicas

Equipos de control industrial, railway & tránsito, instrumentation, communication power supplies, 24-48 VDC circuit protection. It serves as a direct replacement for fuses; manual reset is available upon fault tripping with no fuse replacement required.

Información de pedido

Full order-part-number: 3600-P10-SI-020148-8A (industry-standard complete ordering code).

Available current ratings within series: 0.5 A / 1 A / 2 A / 4 A / 6 A / 8 A / 10 A / 16 A.

Suffix Sia: with auxiliary alarm contacts; Si: sin contactos auxiliares.

Compatible Socket Bases

Socket bases: 17-P10-Si, 23-P10-Si, 63-P10-Si

Montaje en panel: install via ETA original metal mounting clips for cut-out panel assembly.

Reemplazo & Alternative Selection

1. OEM same-series alternative: 3600-P10-Sia-8A (for applications requiring auxiliary alarm contacts).
2. Domestic compatible alternative prerequisites: 8 A rated current, M-type thermal-magnetic characteristic, 65 VDC / 250 VAC rating, 11.5 mm width, push-button reset, blade-terminal interface.

Recordatorios: This device is an equipment-specific circuit-breaker, not a distribution-type MCB miniature circuit-breaker. Its tripping curve differs from domestic-use MCBs; direct interchange is prohibited.

Comparación: E-T-A 3600-P10-Si-8A vs. Third-Party 1-Pole Thermal-Magnetic CBEs

Governing standard: EN 60934 (Circuit-Breakers for Equipment, CBE). Not compatible with DIN-rail-mounted MCB miniature circuit-breakers per EN 60898; direct swap-out is forbidden.

Key specs for 3600-P10-Si-8A: 11.5 mm width, 6.3×0.8 mm blade terminals, manual push-button reset, M-type thermal-magnetic trip, 250 VAC / 65 VDC, 1000 A interrupt rating, sin contactos auxiliares, panel snap-in or socket-plug-in installation.

1. Comparison with European-brand Thermal-Magnetic CBEs (Contacto Fénix, Weidmüller, Schurter)

Distinción crítica: The ETA 3600 is designed for equipment front-panel mounting or socket plug-in, not DIN-rail installation. Most Phoenix / Weidmüller thermal-magnetic CBEs are DIN-rail cabinet-mounted with spring-cage / terminales de tornillo, lacking 6.3 mm blade socket interface; mechanical fit is incompatible, direct replacement is impossible.

2. Fundamental Differences vs. DIN-Rail MCB Miniature Circuit-Breakers (do / D-curve) — Common Pitfall

MCB complies with EN 60898 for power-distribution purposes. ETA 3600 complies with EN 60934 for equipment-protection CBE. Different standards; direct interchange strictly prohibited.

1. Tripping Curve Difference

ETA 3600-P10-Si: M-type CBE characteristic, optimized for industrial devices, coils and power supplies; tolerates moderate inrush surge current with mild thermal tripping behaviour.

MCB C-curve: instantaneous trip 5-10 × In; D-curve: instantaneous trip 10-20 × In, designed for wiring distribution protection. Risk of nuisance tripping or failure-to-trip when protecting electronic equipment.

2. DC Performance Gap

Y: 65 VDC rating, validated DC arc-extinguishing for 24-48 V industrial DC loops.

Conventional 1-pole MCB: most rated ≤48 VDC; many variants have no DC rating at all. Arc-extinguishing failure risk exists under higher DC voltage.

3. Interrupting Capacity

Y: 1000 A (equipment-protection rating). Standard miniature MCBs advertise 6 kA AC interrupt rating, which applies for AC distribution short-circuit conditions; performance differs substantially for low-voltage DC short-circuit events.

4. Installation Form Factor

Y: blade-socket / panel-clip mounting, fitted onto equipment chassis front-panel. MCB clamps to DIN-rail inside control cabinets.

3. Comparison with Domestic Clone-Compatible CBE Products

Domestic drop-in alternatives for 3600-P10-Si replicate: 6.3×0.8 mm blade terminals, 11.5 mm width, push-button reset; physically fit original ETA sockets 17-P10-Si / 23-P10-Si.

Major performance gaps:

Tripping consistency: Bimetallic element dispersion for M-curve; significant tripping-point drift across wide temperature range (−40 ~ +85 °C), which is critical for railway-transit deployments.

Trip-free safety mechanism: Some low-cost domestic copies omit this feature; the breaker can be forced closed manually even under fault conditions, a major safety hazard.

Certification coverage: Original carries full VDE/UL/CSA approvals; many domestic alternatives only carry self-declared CE, disqualifying them for export-grade equipment.

Internal contact resistance: Original 3600 series typical resistance 12-18 mΩ; some domestic units exhibit higher resistance and excessive heating under full-load current.

4. Practical Replacement Prerequisites

All criteria must be satisfied for direct drop-in replacement:

✅ Complies with EN 60934 CBE standard, M-type tripping characteristic

✅ Rated 250 VAC, DC rating ≥65 V

✅ 6.3×0.8 mm blade terminals, 11.5 mm device width

✅ Manual push-button reset + Trip-free mechanism

✅ Interrupting capacity ≥1000 A

❌ DIN-rail MCBs and electronic PTCB circuit-breakers cannot substitute directly. PTCB uses electronic current-limiting, while thermal-magnetic breakers rely on physical bimetallic actuation; fault-response behaviour is fundamentally different.

2. Select suffix -Sia variant if fault-alarm signalling is required; -Si has no auxiliary contacts.
3. Low-resistance sibling series: 3900-P10-Si-8A, lower internal resistance for circuits sensitive to voltage drop.
4. Typical Selection Misconceptions
5. “Same 8 A rating means interchangeable”: Curva de disparo, DC voltage rating, Trip-free safety mechanism and mechanical mounting interface are all mandatory matching criteria.
6. Substituting thermal-magnetic CBE with Phoenix PTCB electronic circuit-breaker: PTCB implements electronic current-limiting, not thermal-magnetic actuation; overload response differs, cannot be swapped directly.
7. Direct substitution with standard C-curve MCB: risk of DC arc-extinguishing failure on 24-48 V DC loops and mismatched equipment-protection tripping thresholds.

E-T-A 3600-P10-Si-8A Application Scenarios

This device is an EN 60934 thermal-magnetic Circuit-Breaker for Equipment (CBE). Its intended use is circuit-protection inside end-equipment, not cabinet-level power-distribution. Key features: panel-clip / socket-plug-in mounting, 250 VAC / 65 VDC rating, M-type thermal-magnetic trip, manual push-button reset. No fuse replacement needed after tripping.

Nota: -Si variant has no auxiliary alarm contacts. Choose the -Sia suffix model if fault-status output signal is needed.

🔌 DC Circuit Applications (Most Common for 24 V / 48 V Industrial DC)

1. Internal supply sub-circuits for industrial control hardware

Power feeds for PLC peripherals, IO modules, collective sensor loops, servo auxiliary power supplies, 24 V solenoid-valve banks. The 8 A rating suits clustered banks of sensors and solenoid valves. Replaces fuses, delivers short-circuit & protección contra sobrecarga. On-site push-button reset without chassis disassembly and fuse swap.

2. Telecom & industrial power hardware

Internal power branches for industrial switches, gateways, DTUs, edge-computing hardware; 48 V telecom equipment for board-card output-circuit protection.

3. Battery-powered equipment

Secondary-side circuit-protection for lithium-ion / lead-acid battery-operated devices. 65 VDC rating covers nearly all 24-48 V battery-based systems.

🚆 Railway & Tránsito (ETA Traditional Strength Domain)

On-board equipment boxes, metro vehicle control units, door-control modules, cabin lighting, on-board instrumentation.

Operates over wide temperature range −40 °C ~ +85 °C, high vibration-shock resistance. Front-panel installation allows maintenance-staff reset without cabinet opening.

Railway projects normally specify -Sia auxiliary-contact variant, to report fault events to vehicle control systems.

🧪 Instrumentation & Non-Life-Support Medical Auxiliary Equipment

Test-and-measurement hardware, laboratory analytical instruments, production test fixtures, non-life-support medical auxiliary devices.

Fuse-replacement with resettable protection, reduces spare-part inventory; full UL/VDE certification satisfies equipment safety requirements.

Not recommended for direct deployment on life-critical medical primary circuits without full assessment.

📟 Industrial Chassis & Embedded Equipment

1. Card-cage chassis hardware: deploy with socket bases 17-P10-Si / 23-P10-Si; breaker plugs into socket for quick hot-swap replacement.
2. Panel-cutout clip-mount installation: reset push-button protrudes through equipment front-panel for easy operator access.

This is the primary differentiator vs DIN-rail breakers: it mounts to the end-equipment itself, not inside control-cabinet DIN-rail infrastructure.

⚙️ Construction Machinery & Off-Highway Vehicle Electronics

Construction-vehicle / special-vehicle on-board electrical enclosures, portable field-test gear. 24 V vehicle-system operation; M-type characteristic tolerates motor / coil inrush transients without nuisance tripping; high vibration immunity.

❌ Non-Suitable Use-Cases

1. Doméstico / building power-distribution circuits: Cannot replace MCB miniature breakers; it is equipment-internal protection, not wiring-distribution protection.
2. DC voltages exceeding 65 V: Maximum DC rating is 65 V; forbidden for 72 V, 110 V DC systems.
3. Remote electrical-trip requirement: No shunt-trip coil available; only manual push-button reset.
4. Fault-alarm signal requirement: -Si has no auxiliary contacts; order -Sia instead.

✅ Selection Tips

1. Circuits containing motors or inductive coils: M-type tripping withstands motor startup surges and prevents nuisance tripping.
2. Equipment requiring fault-status acquisition: Specify 3600-P10-Sia-8A.
3. Voltage-drop-sensitive circuits: Upgrade to low-resistance variant 3900-P10-Si-8A.