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SIGMA F+E

Short Circuit and Earth Fault Indicator

Product Features

  • High-intensity LEDs with a viewing angle of 180 degrees
  • Load-dependent self-adjustment or fixed settings
  • Single and double flash mode for operation in radial and ring networks
  • Remote signal
     

The SIGMA F+E device is a combined short-circuit and earth fault indicator. Due to the measuring principle the earth fault indication is suitable for networks with low-impedance or solidly earthed neutral.

When the phase current exceeds the preset trip current level and the period of the preset response delay, or when the phase current exceeds the previously flowing operating current by a defined factor (self-adjustment), the fault-affected phase will be indicated by a bright flashing LED. At the same time, the remote signal contact will be activated. A double flashing LED signals a second fault that has occurred within the reset time, e. g. by automatic re-closure. The device provides automatic reset options, either after expiry of a preset time or by closing an external input contact, or it can be reset manually by pressing the “Test“ button. A function test can also be carried out either by the “Test” button or an external input contact.

The current transformer type is set in the factory. It is possible to use the same current transformers as for the ALPHA series. The switches on the front face of the device are used to adjust trip current values, response delay thresholds, and periods for timed reset, as well as the required remote signal contact type (permanent or momentary contact).

 

Equipment set:

  • 1 Display unit (plug-in/surface mount housing)
  • 2 Short-circuit current transformers
  • 1 Summation current transformer


Product

Note Item Number

Display unit in plug-in housing

Item Number37-2111-002

Display unit in plug-in housing

Item Number37-2111-002

Display unit in surface mounted housing

Item Number37-2511-001

Display unit with external power supply (AC/DC) in plug-in housing

Item Number37-2121-002

Display unit with external power supply (AC/DC) in surface mounted housing

Item Number37-2521-001


Technical Data

Technical Data

SIGMA F+E

Short-circuit indicator

Earth fault indicator

I>> Short-circuit trip current

(100), 200, 300, 400, 600, 800, 1,000 A, fixed settings

Auto-setting as a function of the operating current (IL):
IL < 100 A ⇒ I>> = 400 A, IL > 100 A ⇒ I>> = 4 x IL

tI>> Response delay

40 ms, 80 ms

IE> Earth fault trip current

20, 40, 60, 80, 100, 120, 160 A

tIE> Response delay

80 or 160 ms

Accuracy

±15 %

Indication

3 red LEDs: 2 x short-circuits (L1, L3),

1 x earth fault (E) or short circuit (L2)

Reset

  • Manual reset
  • Automatic time reset:1, 2, 4, 8 h, adjustable
  • Remote reset

Remote signal

2 Relay contacts

Relay contact

Potential-free permanent and momentary contact (1 s), adjustable
Contact capacity:
230 V AC/1 A/62.5 VA max.
220 V DC/1 A/60 W max.

Power supply

Long-life lithium cell, lifetime ≥20 years, >1,000 h total flashing time

Optional: external power supply, incorporated in the device: 12 – 60 V DC

Housing

Polycarbonate, IP40 (plug-in housing), IP65 (add-on housing)

Temperature range

-30 to +70 °C

Accessories

Current transformers

Short-circuit current transformers for installation on insulated cables

  • for short-circuit indicator types ALPHA, SIGMA, SIGMA F+E, SIGMA plus
  • For conductor dia. 15 - 52 mm
  • Cable length 3 m

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49-6011-040
Short circuit current transformers for installation on insulated cables

  • for short-circuit indicator types ALPHA, SIGMA, SIGMA F+E, SIGMA plus
  • For conductor dia. 15 – 52 mm
  • Cable length 6 m

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49-6011-043
Short-circuit current transformers for installation over bushings

  • for short-circuit indicator types ALPHA, SIGMA, SIGMA F+E, SIGMA plus
  • for switchgear manufacturer Ormazabal GA,GAE, GE
  • Dimensions: 96 x 96 mm
  • Cable length 1,2 m

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49-6010-011
Short-circuit current transformers for installation over bushings

  • for short-circuit indicator types ALPHA, SIGMA, SIGMA F+E, SIGMA plus
  • for switchgear manufacturer Schneider Electric RM6
  • Dimensions: 80 mm Ø
  • Cable length 1,1 m

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49-6010-044
Short-circuit current transformers for installation over bushings

  • for short-circuit indicator types ALPHA, SIGMA, SIGMA F+E, SIGMA plus
  • for switchgear manufacturer Schneider Electric FBA, GLA, GMA
  • Dimensions: 92 mm Ø
  • Cable length 1,26 m

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49-6010-030
Short-circuit current transformers for installation over bushings

  • for short-circuit indicator types ALPHA, SIGMA, SIGMA F+E, SIGMA plus
  • for switchgear manufacturer Siemens 8DJ, 8DH, SIMOSEC
  • Dimensions: 95 mm Ø
  • Cable length 0,8 m

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49-6010-052
Short-circuit current transformers for installation over bushings

  • for short-circuit indicator types ALPHA, SIGMA, SIGMA F+E, SIGMA plus
  • for switchgear manufacturer Siemens 8DJH
  • module transformer
  • Cable length 1,3 m

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49-6010-060
Short-circuit current transformers for installation on pole plates

  • for short-circuit indicator types ALPHA, SIGMA, SIGMA F+E, SIGMA plus
  • for switchgear manufacturer ABB SafeRing, RGC, Safeplus
  • Ccable-type CT for pole plate
  • Dimensions: 23 x 3 mm
  • Cable length 3 m

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49-6012-009
Short-circuit current transformers for installation on pole plates

  • for short-circuit indicator types ALPHA, SIGMA, SIGMA F+E, SIGMA plus
  • for switchgear manufacturer Driescher MINEX, G.I.S.E.L.A.
  • Cable-type CT for pole plate
  • Dimensions: 3-pole plate
  • Cable length 1,5 m

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49-6012-007
Short-circuit current transformers for installation on pole plates

  • for short-circuit indicator types ALPHA, SIGMA, SIGMA F+E, SIGMA plus
  • for switchgear manufacturer Schneider Electric FBX
  • Cable-type CTs for pole plate
  • Dimensions: 3- pole plate
  • Cable length 1,7 m

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49-6012-005
Short-circuit current transformers for installation on pole plates

  • 1 set consisting of 3 short-circuit current transformers
  • for switchgear manufacturer ABB SafeRing, RGC, Safeplus
  • Cable-type CTs for pole plate
  • Dimensions: 23 x 3 mm
  • Cable length 0,89/0,99/1,09 m

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49-6012-015
Short-circuit current transformers for installation over bushings

  • 1 set consisting of 3 short-circuit current transformers
  • for switchgear manufacturer EATON/Holec SVS
  • Dimensions: 44 mm
  • Cable length 1,22/1,06/1,06 m

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49-6010-032
Short-circuit current transformers for installation over bushings

  • 1 set consisting of 3 short-circuit current transformers
  • for switchgear manufacturer EATON/Holec XIRIA
  • Dimensions: 70 mm
  • Cable length 1,47/1,36/1,25 m

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49-6010-048
Earth fault current transformers

  • for short-circuit indicator types SIGMA F+E, SIGMA plus
  • Summation current transformers for installation on cables
  • for conductor dia. 40 - 115 mm
  • Cable length 3 m

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49-6013-016
Earth fault current transformers

  • for short-circuit indicator types SIGMA F+E, SIGMA plus
  • Summation current transformers for SF6-insulated installations
  • for conductor dia. 280 x 50 mm, oval
  • Cable length 3 m

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49-6013-028
Earth fault current transformers

  • for short-circuit indicator types SIGMA F+E, SIGMA plus
  • Summation current transformers for air-insulated installations
  • for conductor dia. 350 x 50 mm, oval
  • Cable length 3 m

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49-6013-027

External Signal Lamps

External Signal Lamp

  • with 3 LEDs (red)
  • 5 m connection cable, for permanent contact, with battery

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49-0702-005

Wall-mounted Housings

Wall-mounted housing including earthing bar

  • 290 x 74 x 200 mm (W x H x D)

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V49-9001-007-001
Wall-mounted housing including earthing bar

  • 125 x 175 x 125 mm (W x H x D)

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V49-9001-004-001
Wall-mounted housing

  • 125 x 75 x 125 mm (W x H x D)

  • Bottom cable entry

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49-9001-001
Wall-mounted housing

  • 125 x 75 x 125 mm (W x H x D)

  • Rear cable entry

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49-9001-002

Other

Disassembly clip

Disassembly clip for retracting plug-in housings

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040401-0008
Spring clip

Spring clip suitable for 2 mm front plate thickness (standard)

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040804-0009
Spring clip

Spring clip suitable for 3 mm front plate thickness

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040804-0010

Dimensioned Drawings

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