Name: GLC1 Industrial AC Contactor - Geya Electrical time relay
SKU: GLC1-A

Description

GLC1 Series AC Contactor, B Grade – 9A to 95A for Motor and Distribution Control

The GLC1 AC contactor is a 3-pole electromagnetic contactor for switching three-phase motors and general AC loads, offered in ten frames from 9A to 95A with a rated insulation voltage of 690V. Under AC-3 duty at 380V the range covers 4kW to 45kW, and under AC-4 duty 1.5kW to 22kW. Coils are available in AC 24V, 36V, 110V, 220V, 380V and DC 24V, 110V, 220V. The B grade version is identified by its grey housing and uses a 40% silver contact alloy, which makes it a practical choice for price-sensitive projects with normal switching duty. Products are built to GB/T 14048.4 and IEC 60947-4-1 and carry CCC and CE.

Size Dimension

Working Principle

Applying control voltage to terminals A1–A2 energises the coil; the magnet pulls in the armature and the three main contacts close, connecting the load to the supply. The contactor holds in as long as the control voltage stays within 85%–110% of Us. Removing or losing the control voltage releases the armature and springs open the main contacts — drop-out occurs between 20% and 70% of Us for AC coils, and between 10% and 70% for DC coils, so the load is dropped on a control-supply failure. One auxiliary contact operates with the main contacts and is normally used for self-holding, interlocking or signalling in the control circuit.

Key Features

Ten frame sizes — 9, 12, 18, 25, 32, 40, 50, 65, 80 and 95A, so one series covers most single-motor circuits.
Documented endurance — mechanical life 6.5 to 12 million operations; AC-3 electrical life 650,000 to 1.1 million operations.
Operating rate — up to 1,200 cycles per hour in AC-3 and 300 cycles per hour in AC-4.
One-piece cover and enclosed core design — reduces dust ingress on the moving parts and keeps the front face flush for panel work.
B grade contact system — grey housing with 40% silver alloy contacts; frames 09–18 use a steel contact carrier. The A grade version (white housing, 85% silver, copper carrier) is available where switching frequency is higher.
Wide terminal capacity — from 1mm² on the 9A frame up to 50mm² on the 80–95A frames.

Model Naming Rules

Example: GLC1-0910BZ

GLC1 — AC contactor series.
09 — rated current: 09 / 12 / 18 / 25 / 32 / 40 / 50 / 65 / 80 / 95A.
10 — contact type: 10 = 1NO, 01 = 1NC, 11 = 1NO+1NC, 004 = main contact 4NO (not for 18A and 32A), 008 = main contact 2NO+2NC (not for 18A and 32A).
B — coil voltage: B = 24V, C = 36V, F = 110V, M = 220V, Q = 380V.
Z — DC control circuit.

Accessories

FG1 — dust cover.
F1 / FC1 — top-mounted and side-mounted auxiliary contact blocks.
FJ1 — mechanical interlock for reversing and changeover circuits.
FY1 — air delay head for timed switching.
FR1 — surge suppressor for coil transient damping.

Installation and Operating Conditions

Mounting position — vertical, with inclination in any direction not exceeding 22.5°; installation class III.
Ambient temperature — -5°C to +40°C, 24-hour average not above +35°C.
Storage — -25°C to +55°C, with short periods (24h) up to +70°C permitted.
Humidity — up to 50% at +40°C, and up to 90% at +20°C; take precautions where condensation can form.
Altitude — up to 2000m; pollution degree 3; enclosure protection IP20.
Wiring — observe the terminal capacity table and tighten to the value marked on the product; a thermal relay or MCB must provide the overload and short-circuit protection.

Applications

Three-phase motor starting and stopping, machine tools, pumps and water dispensers, fans and compressors, conveyor and packaging lines, lighting and heating groups, capacitor and changeover circuits when combined with the FJ1 interlock. The series is normally used together with thermal overload relays, time relays and miniature or moulded case circuit breakers.

Technical Parameters

General Data

Item	Data
Product range	9A–95A, 10 current ratings
Number of poles	3P main circuit + 1 auxiliary contact
Standards	GB/T 14048.1 / IEC 60947-1; GB/T 14048.4 / IEC 60947-4-1
Certification	CCC / CE
Accessories	FG1 dust cover, F1 top auxiliary contact, FC1 side auxiliary contact, FJ1 mechanical interlock, FY1 air delay head, FR1 surge suppressor
Installation position	Vertical; inclination ≤22.5° in any direction; installation class III
Pollution class	Class 3
Ambient temperature	-5°C to +40°C; 24h average ≤+35°C
Storage temperature	-25°C to +55°C; up to +70°C for short periods (24h)
Humidity	≤50% at +40°C; up to 90% at +20°C; protect against occasional condensation
Altitude	≤2000m
Protection grade	IP20
B grade construction	Grey housing; 40% silver contact alloy; steel contact carrier on frames 09–18

Main Circuit Characteristics

Contactor Model	GLC1-09	GLC1-12	GLC1-18	GLC1-25	GLC1-32	GLC1-40	GLC1-50	GLC1-65	GLC1-80	GLC1-95
Rated insulation voltage Ui (V)	690
Conventional thermal current Ith (A)	20	20	32	40	50	60	80	80	100	100
Ie 380V AC-3 (A)	9	12	18	25	32	40	50	65	80	95
Ie 380V AC-4 (A)	3.5	5	7.7	8.5	12	18.5	24	28	37	44
Ie 660V AC-3 (A)	6.6	8.9	10.6	18	21	34	39	42	49	49
Ie 660V AC-4 (A)	1.5	2	3.8	4.4	7.5	9	12	14	17.3	21.3
Pe 380V AC-3 (kW)	4	5.5	7.5	11	15	18.5	22	30	37	45
Pe 380V AC-4 (kW)	1.5	2.2	3	4	5	7.5	11	15	18.5	22
Pe 660V AC-3 (kW)	5.5	7.5	9	15	18.5	30	33	37	45	45
Pe 660V AC-4 (kW)	1.1	1.5	1.7	4	5.5	7.5	11	11	15	18.5

Durability and Operating Frequency

Item	09	25	40	65	80
Mechanical durability (×10,000 ops)	1200	1000	900	650
Electrical durability AC-3 (×10,000 ops)	110		90		65
Electrical durability AC-4 (×10,000 ops)	22		17		11
Operating frequency AC-3 (ops/hour)	1200		600
Operating frequency AC-4 (ops/hour)	300

Main Circuit Terminal Wiring Capability (mm²)

Conductor	09 / 12	18	25 / 32	40 / 50	65	80 / 95
Flexible wire, without terminal, 1 conductor	1–4	1–6	1.5–10	2.5–10	2.5–25	4–50
Flexible wire, without terminal, 2 conductors	1–4	1–6	1.5–6	2.5–10	2.5–16	2.5–35
Flexible wire, with terminal, 1 conductor	1–2.5	1–4	1–4	2.5–16	2.5–16	4–50
Flexible wire, with terminal, 2 conductors	1–2.5	1–4	1–4	2.5–10	2.5–16	2.5–25
Rigid wire, 1 conductor	1–4	1–6	1.5–6	2.5–10	2.5–25	4–50
Rigid wire, without terminal, 2 conductors	1–4	1–6	1.5–6	2.5–10	—	—

Coil Data

Item	09 / 12	25 / 32	40 / 50	65 / 80 / 95
Rated control voltage Us, AC 50/60Hz	24V / 36V / 110V / 220V / 380V
Rated control voltage Us, DC	24V / 110V / 220V
Operating range	85%–110% Us
Drop-out range	AC 20%–70% Us; DC 10%–70% Us
Coil power, actuation (VA)	70		110	200
Coil power, holding (VA)	<9	<9.5	<14	<36.6
Heat dissipation (W)	1.8–2.7		3–4	6–10

Coil Voltage Codes

Coil Voltage Us (V)	24	36	110	220	380
AC 50/60Hz code	B5	C5	F5	M5	Q5
DC code	BD	—	FD	MD	—

Auxiliary Contact

Item	09 – 32	40 – 95
Contact specification	10 / 01	11
Conventional thermal current Ith	10A
Rated control circuit voltage Ue	AC 380V; DC 220V
Rated control capacity	AC-15: 360VA; DC-13: 33W
Certification	CCC / CE

Click here to download the GLC1-ROHS certification

FAQs

1. What is the GLC1 AC contactor?

It is a 3-pole electromagnetic AC contactor used to switch three-phase motors and general AC loads from a control circuit. The series has ten frames from 9A to 95A, a rated insulation voltage of 690V, and covers 4–45kW under AC-3 duty at 380V. Coils are available in AC 24–380V and DC 24–220V, and the products are built to GB/T 14048.4 and IEC 60947-4-1.

2. What are its core functions?

Remote load switching — main contacts close and open on command from a control voltage at A1–A2.
Undervoltage release — the contactor drops out between 20% and 70% Us (AC), so the load is disconnected if the control supply fails.
Control circuit signalling — one auxiliary contact for self-holding, interlocking or indication.
High cycling capability — up to 1,200 operations per hour in AC-3.
Function expansion — auxiliary blocks, mechanical interlock, air delay head and surge suppressor mount directly on the contactor.

3. Which parameters decide the correct selection?

Motor power and utilisation category — a 15kW motor at 380V needs GLC1-32 under AC-3, but a larger frame under AC-4 (GLC1-80 rates 18.5kW in AC-4).
Operating current Ie — compare with the 380V or 660V column, not with the thermal current Ith.
Coil voltage — AC 24 / 36 / 110 / 220 / 380V or DC 24 / 110 / 220V; DC coils use the Z suffix.
Contact configuration — 10 (1NO), 01 (1NC), 11 (1NO+1NC), 004 (4NO main) or 008 (2NO+2NC main).
Switching frequency — AC-3 electrical life runs from 650,000 to 1.1 million operations depending on frame.
Cable size — terminal capacity ranges from 1mm² on GLC1-09 to 50mm² on GLC1-80/95.

4. Which models and accessories are available?

Current ratings — GLC1-09, 12, 18, 25, 32, 40, 50, 65, 80 and 95.
Popular item — GLC1-1210 AC220V (12A, 1NO auxiliary, 220V coil).
Grades — B grade with grey housing and 40% silver alloy; A grade with white housing and 85% silver alloy for heavier duty.
Accessories — FG1 dust cover, F1 and FC1 auxiliary contact blocks, FJ1 mechanical interlock, FY1 air delay head, FR1 surge suppressor.
Companion products — thermal overload relays, time relays, MCBs and MCCBs for a complete starter assembly.

5. What standards does it follow and which markets does it suit?

The GLC1 series complies with GB/T 14048.1 / IEC 60947-1 and GB/T 14048.4 / IEC 60947-4-1, and carries CCC and CE. Design conditions are pollution degree 3, installation class III, altitude up to 2000m, IP20. Coil options from 24V to 380V and ratings referenced at both 380V and 660V make the series suitable for IEC-based networks across Asia, Africa, the Middle East, Latin America and Europe. Ask our sales team for the current certificates and test reports for your project or customs file.

6. What should be noted for installation and maintenance?

Mount vertically — inclination in any direction must stay within 22.5°.
Check the coil marking — connecting a 24V coil to 220V will damage it; verify the code on the coil label before wiring.
Add protection upstream — the contactor switches but does not protect; fit a thermal relay for overload and a breaker or fuse for short circuit.
Respect conductor limits — follow the terminal capacity table and retighten screws after the first weeks of operation.
Keep within ambient limits — -5°C to +40°C in service, IP20 means an enclosure is required in dusty or damp areas.
Inspect contacts — humming, delayed pull-in or sticking usually indicates coil voltage outside 85%–110% Us or worn contacts; replace the unit rather than dressing the contact faces.

What is the difference between A grade and B grade?

B grade — grey housing, 40% silver contact alloy, steel contact carrier on frames 09–18; suited to standard switching duty and cost-driven projects.
A grade — white housing, 85% silver contact alloy, copper contact carrier on frames 09–18; chosen for frequent switching or higher inrush.
Shared data — both grades follow the same current ratings, coil options and mounting arrangement.

How does GLC1 differ from GLC3, and can it replace other brands?

GLC1 — one auxiliary contact, 1NO as standard.
GLC3 — auxiliary contact configuration 1NO+1NC.
Cross-reference — customers commonly use GLC1 in place of comparable LC1N and LC1E frames. Send us the model you currently buy and we will confirm the matching GLC1 code against the dimension and rating data.

GLC1 Industrial AC Contactor B Class