OMRON G3PA-260B-VD Single-Phase Solid State Relay

ประเภทสินค้า: Single-phase SSR (โซลิดสเตต รีเลย์), integrated heat sink, zero-cross turn-on

ป้อนข้อมูล: DC 5~24V; เอาท์พุต: AC 24~240V, 60A @ 40℃

1. ข้อมูลจำเพาะที่สำคัญ

Control Input: DC 5–24V, max control current 7mA; operate voltage ≤4V, release voltage ≥1V

โหลดแรงดันไฟฟ้า: AC 24～240V (operating range 19～264VAC, 50/60เฮิรตซ์)

จัดอันดับปัจจุบัน: 60ก (เอซี-1, 40℃); derate to 48A when densely installed side-by-side

Surge Current: 440ก (60เฮิรตซ์, 1 วงจร); VDRM 600V

On-state Voltage Drop: ≤1.6V RMS; Off-state Leakage Current: ≤20mA @ 200VAC

โหมดทริกเกอร์: Zero-crossing Turn-on, minimizes inrush & อีเอ็มไอ

การแยกตัว: Phototriac optocoupler isolation

ความเป็นฉนวน: 4000VAC 1 นาที; Insulation Resistance ≥100MΩ (ดีซี500วี)

การติดตั้ง: รางปีกนก / การติดตั้งสกรู; with operation indicator

อุณหภูมิแวดล้อม: -30～+80℃ (ไม่มีการควบแน่น); พื้นที่จัดเก็บ: -30～100℃

คุณสมบัติ: Replaceable power cartridge for low maintenance cost

2. การถอดรหัสหมายเลขรุ่น

G3PA: Series of high-current SSR with replaceable power modules

2: Output voltage class AC24–240V (4 = AC200–400/480V high voltage)

60: Rated current 60A

บี: Integrated heat sink

VD: DC voltage input (DC5–24V)

3. การใช้งานทั่วไป

Resistive AC loads such as heating tubes, infrared lamps, พัดลมและสายพานลำเลียง; directly driven by PLC transistor outputs.

บันทึก: Add varistor/RC snubber for inductive motor loads; never operate over current or over temperature.

4. Same Series Cross Reference

G3PA-240B-VD: AC24–240V, 40ก

G3PA-430B-VD: AC200–400V, 30ก

5. Domestic Equivalents (DC5-24V input, AC24-240V, 60A zero-cross SSR)

Meigeer MGR-1 D60

Ximanton H360ZF

Yangming SSR-60DA-H

Application Scenarios for G3PA-260B-VD

Core features summary: DC5–24V control, AC24–240V single-phase output, 60ก, zero-cross trigger, built-in heat sink, field-replaceable power cartridge, PLC direct drive, contactless, การสลับความถี่สูง. First choice for resistive heating loads.

การแจ้งเตือน: This is a single-phase SSR; ใช้ 3 units in parallel for 3-phase heating control (one per phase).

การใช้งานหลัก (การแข่งขันที่ดีที่สุด)

1. Temperature-controlled heating systems (largest application)

เตาอบอุตสาหกรรม, drying cabinets, thermostatic baths, aging test chambers; barrel heating for injection & extrusion machines, ตัวควบคุมอุณหภูมิแม่พิมพ์; heat-seal blades, hot plates on packaging machines; electroplating tank heaters, thermal oil heaters.

ข้อได้เปรียบ: Zero-cross switching avoids voltage spikes; matches PID time-proportion control from temperature controllers; contact-free design delivers ultra-long life for frequent cycling.

2. High-power resistive lighting

Infrared heating lamps, halogen lamps, greenhouse supplementary lighting arrays.

✘ Not recommended: Fluorescent lamps & แหล่งจ่ายไฟ LED (inductive/capacitive surge loads).

3. Light-duty fans & สายพานลำเลียง (inductive loads with surge protection)

พัดลมแบบแรงเหวี่ยงขนาดเล็ก, hot air circulation blowers, single-phase conveyor motors with infrequent starts.

⚠️ Motors are inductive loads; external varistor/RC snubber is mandatory to suppress back EMF, otherwise the SSR will break down easily. Not suitable for large motors or frequent forward/reverse operation.

Other General Automation Applications

1. เครื่องจักรบรรจุภัณฑ์: Heat shrinkers, hot-knife cutters, hot air power control
2. ยาง & อุปกรณ์พลาสติก: Heating platens for vulcanization & thermoforming molds
3. Environmental test equipment: Heating circuits in temperature & humidity chambers
4. เครื่องจักรอาหาร: Baking lines, fryer heating elements, thermal blanching equipment
5. เครื่องปรับอากาศ: Electric duct heaters, auxiliary air-conditioning heating sections
6. Cabinet power distribution: เปลี่ยนรีเลย์ + การรวมกันของคอนแทค; quiet, arcless operation, การติดตั้งราง DIN.

When to choose this SSR instead of electromagnetic contactors

Frequent ON/OFF cycling & PID power regulation (switching every several seconds)

Controlled by PLC or temperature controller DC24V transistor outputs

No arc noise, no contact burn-out & low maintenance required

DIN rail mounting with limited cabinet space, integrated heat sink included

Quick power cartridge replacement without full rewiring later

Unsuitable / Restricted Applications

Direct-on-line starting of large motors, frequently started pumps (high inrush current causes instant damage)

โหลดแบบคาปาซิทีฟ, large switching power supply banks

400VAC loads (max rated voltage only 264VAC)

โหลดไฟฟ้ากระแสตรง (this model is AC-output SSR only)

Circuits requiring short-circuit protection: SSR has no built-in short-circuit protection; fuse/circuit breaker must be installed upstream.

Sizing Tips

Derate to 48A when tightly mounted side-by-side (80% คะแนนปัจจุบัน); always leave current margin.

โหลดอุปนัย: Fit external 471K (470วี, ≥1000A) varistor across output terminals, shortest wiring possible.

3-phase heating scheme: 3 independent G3PA-260B-VD, one per phase, keep 3-phase load balanced.

PID Power Regulation Wiring + Varistor Selection + Derating Installation Standard

หมายเหตุสำคัญ: This is a zero-crossing SSR, designed exclusively for time-proportion PID power regulation, not for phase-angle voltage regulation. DC5~24V input, control current ≤7mA; PLC transistor outputs and temperature controller SSR ports can drive it directly without auxiliary relays.

1. PID Control Wiring (เครื่องควบคุมอุณหภูมิ / บมจ)

นิยามเทอร์มินัล (G3PA-260B-VD)

Control Input: A1(+), A2(-) (DC5~24V; reverse polarity will not burn the unit, just no operation)

Power Output: Line IN, Line OUT (series-connected on live wire, 24~240VAC)

Recommended wiring: MCB → semiconductor fast fuse → SSR output → Load → Neutral (N wire bypasses SSR entirely).

โครงการ 1: Driven by ออมรอน E5CC/E5EC Temperature Controller (Most Common Heating Loop)

1. SSR output of temperature controller → A1(+), A2(-) of G3PA
2. Separate power supply & PT100 thermocouple wiring
3. Critical parameter settings

โหมดเอาท์พุต: สสส / Time Proportion (Zero-cross); DO NOT select phase-angle mode

รอบเวลา (ต): 20~40s for resistive heating; 30s for ovens & mold heaters. Too short a cycle causes overheating; too long creates large temperature fluctuations.

Run AT auto-tuning after stable temperature holding.

บันทึก: Open-collector outputs on temperature controllers have built-in 24VDC drive power, directly compatible with G3PA.

โครงการ 2: PLC Transistor DO Drive (พีเอ็นพี / เอ็นพีเอ็น)

เอาต์พุต PNP: PLC Y terminal → A1(+); 0V of 24VDC → A2(-)

เอาต์พุต NPN: 24VDC+ → A1(+); PLC Y terminal → A2(-)

PLC program: Use fixed-cycle duty-cycle output (เช่น. 30s period, 0~100%). Avoid high-frequency PWM which overheats the thyristor.

Only 7mA input current; standard PLC transistor outputs can drive it without current-limiting resistors.

3-phase Heating (3× G3PA-260B-VD)

Independent phase control: one single-phase SSR per A/B/C phase. Inputs can share multi-channel SSR outputs from one temperature controller or multiple PLC DO points.

⚠️ This is not a 3-phase SSR; เท่านั้น 3 separate single-phase units, keep load current balanced across 3 เฟส.

2. Varistor & RC Snubber Selection (Mandatory for Inductive Loads)

The G3PA has an internal varistor, but inductive back EMF exceeds internal absorption capacity; external MOV is required, wired directly across SSR output terminals with minimal lead length.

220VAC System (การสมัครหลัก)

Varistor: 14D471K (470วี, ≥1000A surge current); 10D471K also acceptable.

110VAC System: 14D271K (270วี, ≥1000A)

RC snubber (for solenoid valves, แฟนตัวเล็ก & หม้อแปลงไฟฟ้า):

C=0.047~0.1μF / 630VAC; R=100~220Ω / 2ว, series RC across output terminals.

✅ Resistive heating tubes: External snubber optional; ✅ Fans, คอยส์ & transformers will blow the SSR without external MOV.

Upstream Fuse Protection (วิกฤต: SSR has no short-circuit protection)

Semiconductor SSR fails instantly under short-circuit conditions; use aR/gR semiconductor fast fuses, not standard gG general fuses.

Resistive heating loads: 80A fast fuse (1.2~1.5× rated current of 60A)

Inductive fan loads: 100A fast fuse

Install fuse immediately upstream of the SSR to shorten fault loop length.

3. การลดระดับ & ข้อมูลจำเพาะการติดตั้ง (G3PA-260B-VD Special Rule)

The G3PA-260B-VD cannot be tightly mounted side-by-side (stated in official datasheet), different from 240B/220B models.

1. Full rating condition: Vertical independent mounting, ≥10mm clearance left & ขวา, ambient temp ≤40℃ → 60A full current.
2. Densely arranged on DIN rail:

2 or more units installed tightly together: Max current limited to 48A (80% การเสื่อมถอย).

4+ units side-by-side: Maintain ≥10mm gap between adjacent SSRs, otherwise overheating failure occurs.

Vertical stacking: ≥80mm vertical gap between upper & lower SSRs to keep airflow.

3. Horizontal flat mounting (heat sink sideways): Derate current by an additional 30%; avoid this mounting orientation.
4. Cabinet ambient >40℃: Further derate current per temperature derating curve; add cabinet cooling fans.
5. แรงบิดของเทอร์มินัล: M3.5 screw terminals, tighten to 0.8~1.2N·m. Loose terminals cause overheating & burnt terminals.
6. Cartridge replacement: G3PA allows standalone replacement of the G32A power cartridge without rewiring main power circuits, ideal for bulk maintenance.
7. Commissioning Troubleshooting Checklist
8. Never use this zero-cross SSR for phase-angle dimming/power control; it only supports time-proportion ON/OFF power regulation.
9. Off-state leakage: ≤20mA residual voltage across load when SSR is OFF; always isolate upstream MCB before maintenance.
10. Do not add large series resistors on input side; low voltage will cause false triggering.
11. Separate DC24V control wiring from high-current power cables to avoid EMI interference.
12. Cold heating element inrush current: Limit heater rated current to ≤70% of SSR rated current for extra safety margin.
13. การวินิจฉัยข้อผิดพลาดอย่างรวดเร็ว

Indicator ON, load no heat: Open circuit on main circuit, ฟิวส์ขาด, broken heater element.

Indicator OFF: No input voltage/polarity reversed, temperature controller output disabled, PLC program no output.

Repeated SSR breakdown: No external MOV for inductive loads, insufficient heat dissipation, oversized fuses, frequent mains voltage surges.

Severe temperature oscillation: PID cycle time too short, P-gain too high, poor thermal insulation, thermocouple misposition.

OMRON Single-Phase SSR + Electromagnetic Power Relay List

บันทึก: All SSRs are zero-crossing, opto-isolated. G3PA series (your current model) features replaceable power cartridges, integrated heat sink & การติดตั้งราง DIN. G3NA/G3NE are cost-effective compact SSRs. Electromagnetic relays are plug-in cabinet relays for PLC & temperature control loops.

ส่วนหนึ่ง 1: G3PA Series (Single-phase SSR, Priority Model)

Replaceable Power Cartridges

G32A-A20-VD-X: For G3PA-220B

G32A-A40-VD: For G3PA-240B

G32A-A60-VD: For G3PA-260B

ส่วนหนึ่ง 2: G3NA Economy Single-phase SSR (No integrated heat sink)

ส่วนหนึ่ง 3: G3NE Compact Mini SSR (Space-saving low-power use)

ส่วนหนึ่ง 4: G3PJ / G3PE New Generation SSR (ขั้วต่อสปริง, high surge resistance)

G3PJ-225B: AC24–240V, 25ก, DC5–24V

G3PJ-245B: AC24–240V, 45ก, DC5–24V

G3PE-225B: AC24–240V, 25ก, DC5–24V

G3PE-245B: AC24–240V, 45ก, DC5–24V

กฎการเข้ารหัสโมเดล:

2 = AC24~240V (220V heating mainstream)

4 = AC200~400/480V high voltage

VD = DC input; A = AC input

ส่วนหนึ่ง 5: OMRON Electromagnetic Power Relays (Plug-in cabinet type)

1. G2R Series (General-purpose Intermediate Relays)

2. LY High-current Plug-in Power Relays (Replace small contactors)

3. G7L High-capacity Power Relays (30A direct single-phase load control)

4. G6B / G6D PCB Mini Relays (Onboard PLC & ตัวควบคุมอุณหภูมิ)

G6B-1174P: 1ก, 5ก, ดีซี24วี

G6D-1A: 1ก, 5ก, ดีซี24วี

ส่วนหนึ่ง 6: คู่มือการเลือก: SSR vs Electromagnetic Relay

1. เครื่องทำความร้อน, PID power regulation, การสลับบ่อยครั้ง & arcless operation → G3PA (ตัวเลือกแรก) / G3NA
2. PLC DO signal conversion, low-frequency switching → G2R intermediate relay
3. ≤30A low-frequency single-phase loads, cost-sensitive → G7L / LY relays
4. Low-power, space-restricted applications → G3NE, G3PJ