HGLR(ETGLR) series Disconnector fuse group

Product Overview

The HGLR (ETGLR) series isolator-fuse combination (hereinafter referred to as the switch) is a multi-pole, manually operated switch. lts enclosure is manufactured from glass fibre-reinforced unsaturated polyester resin, offering excellent dielectric properties, protection capabilities and reliable safety.

The operating mechanism comprises a spring-energised,instantaneous- release acceleration mechanism and a multi-break contact structure that ensures instantaneous closing and opening, irrespective of the speed of the operating handle, thereby significantly enhancing all electrical and mechanical performance characteristics.

The isolator-fuse assembly ensures the safe closing and opening of circuits under live and loaded conditions, whilst providing reliable safety protection against overcurrent or short-circuit conditions. The open position is clearly visible.

Normal operating and installation conditions

• The ambient air temperature shall not exceed +40°C nor fall below -5°C ; the average temperature over a 24-hour period shall not exceed +35°C
• The installation site shall be at an altitude not exceeding 2,000 m.
• Humidity: At a maximum temperature of +40°C , the relative humidity of the air shall not exceed 50 per cent; higher relative humidity is permissible at lower temperatures, for example up to 90 per cent at 20°C . Special measures shall be taken to prevent condensation that may occasionally occur due to temperature fluctuations
• The ambient pollution level is Class 3.
• The switchgear shall be installed in a location free from significant shaking, shock or vibration, and protected from rain and snow, Furthermore, the installation site shall be free from explosive atmospheres and from gases and dust capable of corroding metals or damaginginsulation.

Structural Features

• The HGLR(ETGLR)-63-400 isolator-fuse assembly features a modular design, allowing for flexible configuration according to customer requirements.
• As the HGLR(ETGLR)-630 is designed for high currents, it employs a monobloc structure to ensure stable product performance.
• The operating mechanism utilises a spring-storage mechanism; when the product is made or broken, the spring releases instantaneously, enabling rapid making and breaking (13.8 metres per second), irrespective of the speed of the operatinghandle, which significantly enhances the ability to extinguish arcs
• The switch features a housing manufactured from glass fibre-reinforced unsaturated polyester resin, offering excellent flame-retardant properties, high dielectric strength, superior protection and reliable safety.
• The switch utilises parallel multi-break contacts, which provide a self-cleaning function.
• The switch ensures the circuit can be made or broken under load and provides reliable overcurrent and short-circuit protection.

The switch is fitted with a transparent protective cover that is easy to remove, making the replacement of fuses safer, more convenient and quicker

Standards Compliance

International Standards

• IEC 60947-1- Low-voltage switchgear and controlgear – Part 1: General rules
• IEC 60947-3 – Low-voltage switchgear and controlgear – Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units

National Standards

• GB/T 14048.1-Low-voltage switchgear and controlgear- Part 1: General rules
• GB/T 14048.3-Low-voltage switchgear and controlgear – Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units
• GB/T 4208-1993-Degrees of protection provided by enclosures
• GB 13539.1-Low-voltage fuses-Part l: General requirements
• GB 13539.2-Low-voltage fuses – Part 2: Supplementary requirements for fuses for use by authorized persons

Fuse-Link Selection and Rated Current Table for Different Frame Sizes

Rated Current of Switch-Disconnector Fuse Unit (A)	Fuse-Link Rated Current (A)	Fuse-Link Size Code
63	2, 4, 6, 10, 16, 20, 25, 32, 40, 50, 63	00C
160	2, 4, 6, 10, 16, 20, 25, 32, 40, 50, 63, 80, 100, 125, 160	0
250	16, 20, 25, 40, 50, 63, 80, 100, 125, 160, 200, 250	1
400	50, 63, 80, 100, 125, 160, 200, 250, 315, 400	2
630	200, 250, 315, 400, 500, 630	3

Electrical and Mechanical Performance of HGLR (ETGLR)-63~630 Switch-Disconnector Fuse Units

Parameter				Value
Rated Current of Switch-Disconnector Fuse Unit (A)	Conventional heating current Ith(A)			63	160	250	400	630
	Fuse sizes			00C	0	1	2	3
	Rated insulation voltage Ui			800	800	800	800	800
	Dielectric strength (V)			2000	2000	2000	2000	2000
	Rated impulse withstand voltage Uimp kv			6	6	6	6	6
	Rated operating current Ie(A)	380V	AC-23B	63	160	250	400	630
		660V	AC-21B	40	100	200	315	425
	Limiting short-circuit current (Iq) (KA)			50	50	50	50	50
Making and Breaking Capacity (A RMS)	Rated switching capacity			630	1600	2500	4000	6300
	Rated breaking capacity			504	1280	2000	3200	5040
Operational performance	Mechanical life 380V			1700	1400	1400	800	800
	Electrical life 380V			300	200	200	200	200
Weight	3 Pole			1	1.8	3.2	4.8	16
	4 Pole			1.3	2.3	4.5	6.1	19

Outline and Installation Dimensions(mm)

HGLR(ETGLR)-63/

HGLR(ETGLR)-160/、HGLR-250/、HGLR-400/ inside the cupboard

Specifications	A	B	C	D	E	H	M	P	N	P	U	L	ΦX
HGLR(ETGLR)-160/3	165	162	192	118	127	108	67	90	141	36	115	5	8.8
HGLR(ETGLR)-160/4	200	162	192	118	127	144	67	90	141	36	115	5	8.8
HGLR(ETGLR)-250/3	236	195	200	160	146	180	93	137	165	60	145	6	11
HGLR(ETGLR)-250/4	296	195	200	160	146	240	93	137	165	60	145	6	11
HGLR(ETGLR)-400/3	281	205	200	170	149	198	124	137	175	66	145	6	11
HGLR(ETGLR)-400/4	347	205	200	170	149	198	124	137	175	66	145	6	11

HGLR(ETGLR)-160/J、HGLR-250/J、HGLR-400/J Outside the cupboard

Specifications	A	B	C	D	E	H	M	P	N	P	U	L	ΦX
HGLR(ETGLR)-160/3	165	162	192	118	127	108	67	90	141	36	115	5	8.8
HGLR(ETGLR)-160/4	200	162	192	118	127	144	67	90	141	36	115	5	8.8
HGLR(ETGLR)-250/3	236	195	200	160	146	180	93	137	165	60	145	6	11
HGLR(ETGLR)-250/4	296	195	200	160	146	240	93	137	165	60	145	6	11
HGLR(ETGLR)-400/3	281	205	200	170	149	198	124	137	175	66	145	6	11
HGLR(ETGLR)-400/4	347	205	200	170	149	198	124	137	175	66	145	6	11

HGLR(ETGLR)-630/3 inside the cupboard

HGLR(ETGLR)-630/4 inside the cupboard

HGLR(ETGLR)-630/ J outside the cupboard