LV Disconnects & Fuses

EFEN LV Vertical Fuse Switch Disconnects

EFEN E3 Disconnector is the next practicable step in LV network safety

Size 00, Size 2, Size 3 and dual Size 3 for 160 A to 2,000 A
Terminals shrouded both open and closed, eliminating risk of exposed live fuse terminals
Fully compliant with IEC 60947 Part 1 and Part 3

Description

Description

Isolating electricity supply at distribution substations can be made safer with the latest generation of EFEN disconnectors.

The new E3 disconnector keeps live terminals fully shrouded from touch at all times.

In the open position the E3 disconnector holds the disconnected fuse under its cover, which maintains an IP2x barrier preventing ﬁnger touch of either source or load terminal. With distributed generation on the rise and more connected solar feeding into the LV network from residential and commercial premises, a fully shrouded approach better protects operators by eliminating the risk of exposed live fuse terminals.

In the E3 disconnector the whole fuse is withdrawn in a parallel direction by levering the manually dependent switch in a way that opens both terminals of each fuse blade at the same time. This halves the arc voltage by creating two smaller arcs – one at each terminal.

E3 disconnectors also manage heat more effectively, reducing the risk of over-heating. Heat build-up is minimised by improved housing ventilation and busbar design.

The improved design also delivers improved switching capacity with non-resistive loads, and higher short-circuit rating for improved performance in fault conditions.

The versatile range includes both simultaneous three phase switching as well as individual single phase switching from 100 A to 630 A. E3 disconnectors are available as either 1000 A or 2000 A isolators with knife links in place of fuses.

Other ratings are available on request, including parallel arrangements. Rear-connect and side connect conﬁgurations are also available.

Characteristics & Ratings

E3 Fuse Switch Disconnectors

For Fuse-Links ACC. to DIN 43620/1		Size	000/00	000/00	2	3
Busbar System		mm	100	185	185	185
Rated operational current L_e	400V	A	160	160	400	630
	500V	A	160	160	400	630
	690V	A	160	160	315	500
Conventional free air thermal current I_th		A	220	220	400	630
Rated operational voltage Ue		V	690	690	690	690
Rated insulation voltage U_i		V	1000	1000	1000	1000
Rated impulse withstand voltage U_imp		KV	8	8	12	12
Rated conditional short circuit current	400V	KA	100	120	120	120
	500V	KA	100	120	120	120
	690V	KA	100	100	100	100
Utilisation category VDE 0660 T107/EN/IEC 60947-3	400V		AC–23B	AC–23B	AC–23B	AC–23B
	500V		AC–22B	AC–22B	AC–22B	AC–22B
	690V		AC–22B	AC–22B	AC–21B	AC–21B
Mechanical durability		Cycles	1400	1400	800	800
Electrical durability		Cycles	200	200	200	200
Type of protection ACC. DIN/EN 60529/VDE 0470 T1		IP	30	30	20	20
Maximum power dissipation of the NH Fuse-Links		W	12	12	34	48
Total power loss at I_th (without fuse links)		W	20	22	56	111
Degree of pollution			3	3	3	3
Overvoltage category			IV	IV	IV	IV
Rated frequency		Hz	50–60	50–60	50–60	50–60
Weight without NH Fuse-links		KG	1.30	2.00	95–240	70–150

E3 Isolators

Description		Size	Unit	1000A	2000A
Rated operational voltage		U_e	Vac	690	690
Rated operational current		I_e	A	1000	2000
Rated insulation voltage		U_i	Vac	1000	1000
Rated impulse withstand voltage		U_imp	kV	12	12
Rated frequency		I_cw	Hz	5–60	5–60
Rated withstand short circuit current			kA	15	22
Rated withstand short circuit current			kA	25²	40²
Utilisation category AC	400 V			AC–22B	AC–22B
	500 V			AC–21B	AC–21B
	690 V			AC–21B	AC–21B
Mechanical durability – Cycles			N	800	600
Electrical durability – Cycles			N	200	200
Maximum power dissipation without fuse links			W	270	540
IP protection (with front lid open)		IP		20	20
Degree of pollution				3	3
Overvoltage category				IV	IV
Material	All material conforms to RoHS

Notes

Switch disconnects (isolators) are to be used with knife switches
With handle lock

Product Information

Product Selection Table			Current Rating (A)	Busbar Pitch (mm)	Nominal Width (mm)	Cable Clamps	Cable Connection Adaptors		3-Phase	Low Profile	Removable Links	Busbar Connections
Din Size	Hiko Code	Function				Cable Clamps	Cable Connection Adaptors					Busbar Connections
Din Size	Hiko Code	Function				V-clamps	Extended	Compact				Rear	Side (L)	Side (R)	Bus coupler
00	EFV00160	Fuse switch disconnect	160	185	50
00	EFV00160P	Fuse switch disconnect	160	185	50				P
00	EFV00160H100	Fuse switch disconnect	160	100	50
00	EFV00160H100P	Fuse switch disconnect	160	100	50				P
00	EFV00320CDH100	Fuse switch disconnect	320	100	100			C
2	EFV2400	Fuse switch disconnect	400	185	100
2	EFV2400C	Fuse switch disconnect	400	185	100			C
2	EFV2400CP	Fuse switch disconnect	400	185	100			C	P
2	EFV2400P	Fuse switch disconnect	400	185	100				P
2	EFV2400V	Fuse switch disconnect	400	185	100	V
2	EFV2400VP	Fuse switch disconnect	400	185	100				P
3	EFV3630	Fuse switch disconnect	630	185	100
3	EFV3630C	Fuse switch disconnect	630	185	100			C
3	EFV3630CP	Fuse switch disconnect	630	185	100			C	P
3	EFV3630E	Fuse switch disconnect	630	185	100		E
3	EFV3630L	Fuse switch disconnect	630	185	100					L
3	EFV3630P	Fuse switch disconnect	630	185	100				P
3	EFV3630R	Fuse switch disconnect	630	185	100							R
3	EFV3630SL	Fuse switch disconnect	630	185	200								SL
3	EFV3630SR	Fuse switch disconnect	630	185	200									SR
3	EFV3630V	Fuse switch disconnect	630	185	100	V
3	EFV3630VP	Fuse switch disconnect	630	185	100				P
3	EFV3800	Switch disconnect1	1,000	185	100
3	EFV3910C	Fuse switch disconnect	910	185	100			C
3	EFV3910CP	Fuse switch disconnect	910	185	100				P
3	EFV31000	Switch disconnect1	1,000	185	100
3	EFV31000B	Switch Isolator	1000	185	100										B
3	EFV31000C	Switch Isolator	1000	185	100			C
3	EFV31000E	Switch Isolator	1000	185	100		E
3	EFV31000L	Switch Isolator	1000	185	100					L
3	EFV31000R	Switch Isolator	1000	185	100
3	EFV31000SL	Switch Isolator	1000	185	200								SL
3	EFV31000SR	Switch Isolator	1000	185	200									SR
3	EFV31000V	Switch Isolator	1000	185	100	V
3	EFV31000Q	Switch Isolator	1000	185	100						Q
3	EFV31000QC	Switch Isolator	1000	185	100			C			Q
3	EFV31000QE	Switch Isolator	1000	185	100		E				Q
3	EFV31000QL	Switch Isolator	1000	185	100					L	Q
3	EFV31000QP	Switch Isolator	1000	185	100				P		Q
3	EFV31000QR	Switch Isolator	1000	185	100						Q	R
3	EFV31000QSL	Switch Isolator	1000	185	200						Q		SL
3	EFV31000QSR	Switch Isolator	1000	185	200						Q
3	EFV31000QV	Switch Isolator	1000	185	100	V					Q			SR
2×3	EFV31250CD	Fuse switch disconnect	1250	185	200			C
2×3	EFV31250CDP	Fuse switch disconnect	1250	185	200			C	P
2×3	EFV31250ED	Fuse switch disconnect	1250	185	200	E
2×3	EFV31250FD	Fuse switch disconnect	1250	185	200
2×3	EFV32000CD	Switch Isolator	2000	185	200			C
2×3	EFV32000ED	Switch Isolator	2000	185	200	E
2×3	EFV32000FD	Switch Isolator	2000	185	200
2×3	EFV32000QCD	Switch Isolator	2000	185	200			C			Q
2×3	EFV32000QCDP	Switch Isolator	2000	185	200			C	P		Q
2×3	EFV32000QED	Switch Isolator	2000	185	200	E					Q
2×3	EFV32000QFD	Switch Isolator	2000	185	200						Q
2×3	EFV32000QFDP	Switch Isolator	2000	185	200				P		Q
2×3	EFV31820CD	Fuse switch disconnect	1820A	185	200			C
2×3	EFV31820CDP	Fuse switch disconnect	1820A	185	200			C	P
2×3	EFV31820FD	Fuse switch disconnect	1820A	185	200
2×3	EFV31820FDP	Fuse switch disconnect	1820A	185	200				P
2×3	EFV31250D	Fuse switch disconnect	1,250	185	200
2×3	EFV31600D	Switch disconnect1	2,000	185	200
2×3	EFV31820D	Fuse switch disconnect	1,820	185	200
2×3	EFV32000D	Switch disconnect1	2,000	185	200
4A	EFV41600	Fuse switch disconnect	1,600	185	150
4A	EFV41250	Fuse switch disconnect	1,250	185	150

Examples

EFV00160P 160A DIN 00/185 fuse-switch-disconnect with three phase handles

EFV32000QCD 2 x DIN3 Switch isolator with removable links and compact connection adaptors

Also available

Fuse links
Solid copper (knife) links
CTs with non-standard ratings and for external mounting
LV switchgear assembly frames, cabinets and underground pits

Other Literature

Other literature available on request

Reports, drawings, technical data sheets, installation instructions, O&M guidelines

Category: LV Disconnects & Fuses Tag: EFEN

EFEN LV Vertical Fuse Switch Disconnects

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EFEN LV Vertical Fuse Switch Disconnects

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