Accessories for circuit breakers
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Accessories for modular circuit breakers (MCB): busbars (comb busbars) 1P and 3P, 10–16 mm², end caps, auxiliary contacts, shunt trips and undervoltage releases, interlocks.
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Circuit breaker accessories – how to choose
Accessories let you connect circuit breakers in the board quickly and neatly, send their status to a control system, or trip them remotely.
What each accessory does
Accessory Purpose Busbar (comb busbar), U-type (fork) or I-type (pin) Feeds a row of breakers from a single supply instead of separate wire jumpers End cap Insulates the open end of the busbar – mandatory after cutting the busbar Auxiliary contact Signals the breaker position (on / off) to a controller or indicator Shunt trip (24 V or 230 V) Trips the breaker by remote signal – for emergency stop and fire alarm systems Undervoltage release Trips the breaker when voltage is lost or drops – prevents equipment from restarting on its own Interlock Prevents two breakers from being switched on at the same time (e.g. mains / generator) ⚠ How to choose a busbar
Parameter What to check Number of poles 1P for single-phase circuits, 3P for three-phase circuits or phase distribution Cross-section and current 10 mm² or 16 mm² – according to the supply current (e.g. 10 mm² busbar up to 63 A) Contact type U-type (fork) or I-type (pin) – must match the breaker terminal Length 6, 12, 18, 54, 57 modules; a long busbar can be cut to length and fitted with an end cap ⚠ Trips and auxiliary contacts attach to a breaker of a specific series. Choose accessories from the same manufacturer and series. A left- or right-hand trip is mounted on the corresponding side of the breaker.ℹ Circuit breakers: the full circuit breaker group, Promfactor Baltic.⚡ Modular equipment in the board must be installed and connected by a qualified electrician after disconnecting the power and verifying that it is dead.Send us the board diagram – we will choose busbars and accessories to match your breaker series exactly. Contact us.
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Busbar | for connection of automatic circuit breakers | 3P | 10mm² | 63A | Promfactor Baltic WB3-10Code: WB3-10Price 4.34 € VAT incl.( 3.59 € VAT excl. )
Price 15.47 € VAT incl.( 12.79 € VAT excl. )
Price 0.05 € VAT incl.( 0.04 € VAT excl. )
Price 0.03 € VAT incl.( 0.03 € VAT excl. )
Price 0.03 € VAT incl.( 0.03 € VAT excl. )
Busbar for circuit breakers | U-shaped | 3P | 16mm² | 54 modules | Fork type | Promfactor Baltic FLF160354Code: FLF160354Price 17.13 € VAT incl.( 14.16 € VAT excl. )
Busbar for circuit breakers | U-shaped | 1P | 16mm² | 54 modules | Fork type | Promfactor Baltic FRF160154Code: FRF160154Price 6.64 € VAT incl.( 5.49 € VAT excl. )
Busbar for circuit breakers | U-shaped | 3P | 16mm² | 12 modules | Fork type | Promfactor Baltic FLF160312Code: FLF160312Price 3.68 € VAT incl.( 3.04 € VAT excl. )
Busbar for circuit breakers | U-shaped | 1P | 16mm² | 12 modules | Fork type | Promfactor Baltic FRF160112Code: FRF160112Price 1.89 € VAT incl.( 1.56 € VAT excl. )
Busbar for circuit breakers | U-shaped | 1P | 10mm² | 54 modules | Fork type | Promfactor Baltic FRF100154Code: FRF100154Price 5.26 € VAT incl.( 4.35 € VAT excl. )
Busbar for circuit breakers | U-shaped | 1P | 10mm² | 12 modules | Fork type | Promfactor Baltic FRF100112Code: FRF100112Price 1.51 € VAT incl.( 1.25 € VAT excl. )
Price 0.41 € VAT incl.( 0.34 € VAT excl. )
Modular undervoltage release | right | 6A | 230V | DIN | EVO FUV3 Promfactor Baltic F/UV230RCode: F/UV230RPrice 10.60 € VAT incl.( 8.76 € VAT excl. )
Modular independent shunt release | left | 6A | 230V | DIN | EVO FSR3 Promfactor Baltic F/SR230LCode: F/SR230LPrice 5.84 € VAT incl.( 4.83 € VAT excl. )
Modular independent shunt release | right | 6A | 230V | DIN | EVO FSR3 Promfactor Baltic F/SR230RCode: F/SR230RPrice 5.84 € VAT incl.( 4.83 € VAT excl. )
Modular independent shunt release | right | 6A | 24V | DIN | EVO FSR3 Promfactor Baltic F/SR024RCode: F/SR024RPrice 5.84 € VAT incl.( 4.83 € VAT excl. )
